diff --git a/binaries/data/mods/public/gui/gui.dtd b/binaries/data/mods/public/gui/gui.dtd
index 8c30c22804..8b0799ddc3 100644
--- a/binaries/data/mods/public/gui/gui.dtd
+++ b/binaries/data/mods/public/gui/gui.dtd
@@ -135,7 +135,6 @@
   sprite_bar_vertical_pressed		CDATA #IMPLIED
   sprite_back_vertical			CDATA #IMPLIED
   minimum_bar_size			CDATA #IMPLIED
-  maximum_bar_size			CDATA #IMPLIED
 >
 
 <!--
diff --git a/binaries/data/mods/public/gui/session/selection_details.js b/binaries/data/mods/public/gui/session/selection_details.js
index 45dbcad830..c454fe0889 100644
--- a/binaries/data/mods/public/gui/session/selection_details.js
+++ b/binaries/data/mods/public/gui/session/selection_details.js
@@ -35,19 +35,19 @@ function displaySingle(entState, template)
 
 	// Rank
 	if (entState.identity && entState.identity.rank && entState.identity.classes)
-	{
-		getGUIObjectByName("rankIcon").tooltip = entState.identity.rank + " Rank";
-		getGUIObjectByName("rankIcon").sprite = getRankIconSprite(entState);
-		getGUIObjectByName("rankIcon").hidden = false;
-	}
+	{
+		getGUIObjectByName("rankIcon").tooltip = entState.identity.rank + " Rank";
+		getGUIObjectByName("rankIcon").sprite = getRankIconSprite(entState);					
+		getGUIObjectByName("rankIcon").hidden = false;
+	}
 	else
 	{
 		getGUIObjectByName("rankIcon").hidden = true;
-		getGUIObjectByName("rankIcon").tooltip = "";
-	}
-
-	// Hitpoints
-	if (entState.hitpoints)
+		getGUIObjectByName("rankIcon").tooltip = "";
+	}
+								
+	// Hitpoints
+	if (entState.hitpoints)
 	{
 		var unitHealthBar = getGUIObjectByName("healthBar");
 		var healthSize = unitHealthBar.size;
@@ -60,11 +60,11 @@ function displaySingle(entState, template)
 	}
 	else
 	{
-		getGUIObjectByName("healthSection").hidden = true;
-	}
-
-	// TODO: Stamina
-	var player = Engine.GetPlayerID();
+		getGUIObjectByName("healthSection").hidden = true;
+	}
+	
+	// TODO: Stamina
+	var player = Engine.GetPlayerID();
 	if (entState.stamina && (entState.player == player || g_DevSettings.controlAll))
 	{
 		getGUIObjectByName("staminaSection").hidden = false;
@@ -79,11 +79,11 @@ function displaySingle(entState, template)
 	{
 		var experienceBar = getGUIObjectByName("experienceBar");
 		var experienceSize = experienceBar.size;
-		experienceSize.rtop = 100 - (100 * Math.max(0, Math.min(1, 1.0 * +entState.promotion.curr / +entState.promotion.req)));
-		experienceBar.size = experienceSize;
-
-		var experience = "[font=\"serif-bold-13\"]Experience: [/font]" + Math.floor(entState.promotion.curr);
-		if (entState.promotion.curr < entState.promotion.req)
+		experienceSize.rtop = 100 - (100 * Math.max(0, Math.min(1, 1.0 * +entState.promotion.curr / +entState.promotion.req)));
+		experienceBar.size = experienceSize;
+ 
+		var experience = "[font=\"serif-bold-13\"]Experience: [/font]" + Math.floor(entState.promotion.curr);
+		if (entState.promotion.curr < entState.promotion.req)
 			experience += " / " + entState.promotion.req;
 		getGUIObjectByName("experience").tooltip = experience;
 		getGUIObjectByName("experience").hidden = false;
@@ -120,14 +120,10 @@ function displaySingle(entState, template)
 	}
 	else
 	{
-		getGUIObjectByName("resourceSection").hidden = true;
-	}
-
-    var activeResource = entState.resourceSupply && (!entState.resourceSupply.killBeforeGather || !entState.hitpoints)
-    getGUIObjectByName("resourceThroughputIcon").hidden = !activeResource;
-    getGUIObjectByName("resourceThroughputText").hidden = !activeResource;
-
-	// Resource carrying
+		getGUIObjectByName("resourceSection").hidden = true;
+	}
+
+	// Resource carrying
 	if (entState.resourceCarrying && entState.resourceCarrying.length)
 	{
 		// We should only be carrying one resource type at once, so just display the first
@@ -151,32 +147,26 @@ function displaySingle(entState, template)
 		if (entState.trader.goods.amount.market2Gain)
 			totalGain += entState.trader.goods.amount.market2Gain;
 		getGUIObjectByName("resourceCarryingText").caption = totalGain;
-		getGUIObjectByName("resourceCarryingIcon").tooltip = "Gain: " + getTradingTooltip(entState.trader.goods.amount);
-	}
-	else if (entState.foundation)
-	{
-        // Number of builders
-		getGUIObjectByName("resourceCarryingIcon").hidden = false;
-		getGUIObjectByName("resourceCarryingText").hidden = false;
+		getGUIObjectByName("resourceCarryingIcon").tooltip = "Gain: " + getTradingTooltip(entState.trader.goods.amount);
+	}
+	// And for number of workers
+	else if (entState.foundation)
+	{
+		getGUIObjectByName("resourceCarryingIcon").hidden = false;
+		getGUIObjectByName("resourceCarryingText").hidden = false;
 		getGUIObjectByName("resourceCarryingIcon").sprite = "stretched:session/icons/repair.png";
 		getGUIObjectByName("resourceCarryingText").caption = entState.foundation.numBuilders + "    ";
-		getGUIObjectByName("resourceCarryingIcon").tooltip = "Number of builders";
-	}
-	else if (activeResource)
-	{
-        // Number of gatherers
-		getGUIObjectByName("resourceCarryingIcon").hidden = false;
-		getGUIObjectByName("resourceCarryingText").hidden = false;
+		getGUIObjectByName("resourceCarryingIcon").tooltip = "Number of builders";
+	}
+	else if (entState.resourceSupply && (!entState.resourceSupply.killBeforeGather || !entState.hitpoints))
+	{
+		getGUIObjectByName("resourceCarryingIcon").hidden = false;
+		getGUIObjectByName("resourceCarryingText").hidden = false;
 		getGUIObjectByName("resourceCarryingIcon").sprite = "stretched:session/icons/repair.png";
-		getGUIObjectByName("resourceCarryingText").caption = entState.resourceSupply.gatherers.length + " / " + entState.resourceSupply.maxGatherers + "    ";
-		getGUIObjectByName("resourceCarryingIcon").tooltip = "Current/max gatherers";
-
-        // Current total resource output in resources/second
-        getGUIObjectByName("resourceThroughputIcon").sprite = "stretched:session/icons/production.png";
-        getGUIObjectByName("resourceThroughputText").caption = entState.resourceSupply.throughput.toFixed(2);
-        getGUIObjectByName("resourceThroughputIcon").tooltip = "Currently producing " + entState.resourceSupply.throughput.toFixed(2) + " resources/second.";
-	}
-	else
+		getGUIObjectByName("resourceCarryingText").caption = entState.resourceSupply.gatherers.length + " / " + entState.resourceSupply.maxGatherers + "    ";
+		getGUIObjectByName("resourceCarryingIcon").tooltip = "Current/max gatherers";
+	}
+	else
 	{
 		getGUIObjectByName("resourceCarryingIcon").hidden = true;
 		getGUIObjectByName("resourceCarryingText").hidden = true;
@@ -184,11 +174,11 @@ function displaySingle(entState, template)
 
 	// Set Player details
 	getGUIObjectByName("specific").caption = specificName;
-	getGUIObjectByName("player").caption = playerName;
-	getGUIObjectByName("playerColorBackground").sprite = "colour: " + playerColor;
-
-	if (genericName)
-	{
+	getGUIObjectByName("player").caption = playerName;
+	getGUIObjectByName("playerColorBackground").sprite = "colour: " + playerColor;
+	
+	if (genericName)
+	{
 		getGUIObjectByName("generic").caption = "(" + genericName + ")";
 	}
 	else
@@ -229,25 +219,25 @@ function displaySingle(entState, template)
 		// Show max attack range if ranged attack, also convert to tiles (4m per tile)
 		if (entState.attack.type == "Ranged")
 		{
-			var realRange = entState.attack.elevationAdaptedRange;
-			var range =  entState.attack.maxRange;
-			attack += ", [font=\"serif-bold-13\"]Range:[/font] " +
-				Math.round(range/4);
-
-			if (Math.round((realRange - range)/4) > 0)
-			{
-				attack += " (+" + Math.round((realRange - range)/4) + ")";
-			}
+			var realRange = entState.attack.elevationAdaptedRange;
+			var range =  entState.attack.maxRange;
+			attack += ", [font=\"serif-bold-13\"]Range:[/font] " + 
+				Math.round(range/4);
+
+			if (Math.round((realRange - range)/4) > 0)
+			{ 
+				attack += " (+" + Math.round((realRange - range)/4) + ")";
+			}
 			else if (Math.round((realRange - range)/4) < 0)
 			{
 				attack += " (" + Math.round((realRange - range)/4) + ")";
 			} // don't show when it's 0
 
-		}
-	}
-
-	getGUIObjectByName("attackAndArmorStats").tooltip = attack + "\n[font=\"serif-bold-13\"]Armor:[/font] " + armorTypeDetails(entState.armour);
-
+		}
+	}
+	
+	getGUIObjectByName("attackAndArmorStats").tooltip = attack + "\n[font=\"serif-bold-13\"]Armor:[/font] " + armorTypeDetails(entState.armour);
+
 	// Icon Tooltip
 	var iconTooltip = "";
 
@@ -284,11 +274,11 @@ function displayMultiple(selection, template)
 	}
 
 	if (averageHealth > 0)
-	{
-		var unitHealthBar = getGUIObjectByName("healthBarMultiple");
-		var healthSize = unitHealthBar.size;
-		healthSize.rtop = 100-100*Math.max(0, Math.min(1, averageHealth / maxHealth));
-		unitHealthBar.size = healthSize;
+	{
+		var unitHealthBar = getGUIObjectByName("healthBarMultiple");
+		var healthSize = unitHealthBar.size;	
+		healthSize.rtop = 100-100*Math.max(0, Math.min(1, averageHealth / maxHealth));
+		unitHealthBar.size = healthSize;
 
 		var hitpoints = "[font=\"serif-bold-13\"]Hitpoints [/font]" + averageHealth + " / " + maxHealth;
 		var healthMultiple = getGUIObjectByName("healthMultiple");
@@ -297,11 +287,11 @@ function displayMultiple(selection, template)
 	}
 	else
 	{
-		getGUIObjectByName("healthMultiple").hidden = true;
-	}
-
-	// TODO: Stamina
-	// getGUIObjectByName("staminaBarMultiple");
+		getGUIObjectByName("healthMultiple").hidden = true;
+	}
+	
+	// TODO: Stamina
+	// getGUIObjectByName("staminaBarMultiple");
 
 	getGUIObjectByName("numberOfUnits").caption = selection.length;
 
@@ -317,17 +307,17 @@ function updateSelectionDetails()
 	var detailsPanel = getGUIObjectByName("selectionDetails");
 	var commandsPanel = getGUIObjectByName("unitCommands");
 
-	g_Selection.update();
-	var selection = g_Selection.toList();
-
-	if (selection.length == 0)
-	{
+	g_Selection.update();
+	var selection = g_Selection.toList();
+	
+	if (selection.length == 0)
+	{
 		getGUIObjectByName("detailsAreaMultiple").hidden = true;
-		getGUIObjectByName("detailsAreaSingle").hidden = true;
-		hideUnitCommands();
-
-		supplementalDetailsPanel.hidden = true;
-		detailsPanel.hidden = true;
+		getGUIObjectByName("detailsAreaSingle").hidden = true;
+		hideUnitCommands();
+	
+		supplementalDetailsPanel.hidden = true;
+		detailsPanel.hidden = true;
 		commandsPanel.hidden = true;
 		return;
 	}
diff --git a/binaries/data/mods/public/gui/session/session.xml b/binaries/data/mods/public/gui/session/session.xml
index 2c136c0be2..f3e68cd6a9 100644
--- a/binaries/data/mods/public/gui/session/session.xml
+++ b/binaries/data/mods/public/gui/session/session.xml
@@ -177,12 +177,12 @@
 	<object hotkey="camera.jump.set.10">
 		<action on="Press">setJumpCamera(10);</action>
 	</object>
-
+	
 	<!-- Stop the selected units -->
 	<object hotkey="session.stop">
 	    <action on="Press">stopUnits(g_Selection.toList());</action>
 	</object>
-
+	
 	<!-- queue first unit in the training queue  -->
 	<object hotkey="session.queueunit.1">
 	    <action on="Press">addTrainingByPosition(0);</action>
@@ -202,7 +202,7 @@
 	<object hotkey="session.queueunit.4">
 	    <action on="Press">addTrainingByPosition(3);</action>
 	</object>
-
+	
 	<!-- queue 5th unit in the training queue  -->
 	<object hotkey="session.queueunit.5">
 	    <action on="Press">addTrainingByPosition(4);</action>
@@ -315,7 +315,7 @@
 	<!-- ================================  ================================ -->
 	<!-- Time elapsed counter -->
 	<!-- ================================  ================================ -->
-
+	
 	<object size="100%-120 45 100%-10 65" type="text" name="timeElapsedCounter" style="SettingsText" hotkey="timeelapsedcounter.toggle" hidden="true">
 	    <action on="Press">this.hidden = !this.hidden;</action>
 	</object>
@@ -442,7 +442,7 @@
 			z="200"
 			>
 			<object type="text" style="TitleText" size="50%-96 -16 50%+96 16">Settings</object>
-
+			
 			<object style="TranslucentPanelThinBorder"
 				type="image"
 				size="32 32 100%-32 100%-70"
@@ -453,21 +453,21 @@
 					<action on="Load">if (renderer.shadows) this.checked = true; else this.checked = false;</action>
 					<action on="Press">renderer.shadows = this.checked;</action>
 				</object>
-
+				
 				<!-- Settings / Shadow PCF -->
 				<object size="0 35 100%-80 60" type="text" style="RightLabelText" ghost="true">Enable Shadow Filtering</object>
 				<object name="shadowPCFCheckbox" size="100%-56 40 100%-30 65" type="checkbox" style="StoneCrossBox" checked="true">
 					<action on="Load">if (renderer.shadowPCF) this.checked = true; else this.checked = false;</action>
 					<action on="Press">renderer.shadowPCF = this.checked;</action>
 				</object>
-
+				
 				<!-- Settings / Water Normals -->
 				<object size="0 60 100%-80 85" type="text" style="RightLabelText" ghost="true">Water - HQ Waviness</object>
 				<object name="waterNormalCheckox" size="100%-56 65 100%-30 90"  type="checkbox" style="StoneCrossBox" checked="true">
 					<action on="Load">if (renderer.waternormal) this.checked = true; else this.checked = false;</action>
 					<action on="Press">renderer.waternormal = this.checked;</action>
 				</object>
-
+				
 				<!-- Settings / Real Depth -->
 				<object size="0 85 100%-80 110" type="text" style="RightLabelText" ghost="true">Water - Use Actual Depth</object>
 				<object name="waterRealDepthCheckbox" size="100%-56 90 100%-30 115"  type="checkbox" style="StoneCrossBox" checked="true">
@@ -481,28 +481,28 @@
 					<action on="Load">if (renderer.waterreflection) this.checked = true; else this.checked = false;</action>
 					<action on="Press">renderer.waterreflection = this.checked; </action>
 				</object>
-
+				
 				<!-- Settings / Refraction -->
 				<object size="0 135 100%-80 160" type="text" style="RightLabelText" ghost="true">Water - Enable Refraction</object>
 				<object name="waterRefractionCheckbox" size="100%-56 140 100%-30 165"  type="checkbox" style="StoneCrossBox" checked="true">
 					<action on="Load">if (renderer.waterrefraction) this.checked = true; else this.checked = false;</action>
 					<action on="Press">renderer.waterrefraction = this.checked; </action>
 				</object>
-
+				
 				<!-- Settings / Foam -->
 				<object size="0 160 100%-80 185" type="text" style="RightLabelText" ghost="true">Water - Enable Shore Foam</object>
 				<object name="waterFoamCheckbox" size="100%-56 165 100%-30 190"  type="checkbox" style="StoneCrossBox" checked="true">
 					<action on="Load">if (renderer.waterfoam) this.checked = true; else this.checked = false;</action>
 					<action on="Press">renderer.waterfoam = this.checked; </action>
 				</object>
-
+				
 				<!-- Settings / Waves -->
 				<object size="0 185 100%-80 210" type="text" style="RightLabelText" ghost="true">Water - Enable Shore Waves</object>
 				<object name="waterCoastalWavesCheckbox" size="100%-56 190 100%-30 215"  type="checkbox" style="StoneCrossBox" checked="true">
 					<action on="Load">if (renderer.watercoastalwaves) this.checked = true; else this.checked = false;</action>
 					<action on="Press">renderer.watercoastalwaves = this.checked; </action>
 				</object>
-
+				
 				<!-- Settings / Shadows -->
 				<object size="0 210 100%-80 235" type="text" style="RightLabelText" ghost="true">Water - Use Surface Shadows</object>
 				<object name="waterShadowsCheckbox" size="100%-56 215 100%-30 240"  type="checkbox" style="StoneCrossBox" checked="true">
@@ -516,27 +516,27 @@
 					<action on="Load">if (renderer.particles) this.checked = true; else this.checked = false;</action>
 					<action on="Press">renderer.particles = this.checked;</action>
 				</object>
-
+				
 				<!-- Settings / Unit Silhouettes -->
 				<object size="0 260 100%-80 285" type="text" style="RightLabelText" ghost="true">Enable Unit Silhouettes</object>
 				<object name="silhouettesCheckbox" size="100%-56 265 100%-30 290" type="checkbox" style="StoneCrossBox" checked="true">
 					<action on="Load">if (renderer.silhouettes) this.checked = true; else this.checked = false;</action>
 					<action on="Press">renderer.silhouettes = this.checked;</action>
 				</object>
-
+				
 				<!-- Settings / Music-->
 				<object size="0 285 100%-80 310" type="text" style="RightLabelText" ghost="true">Enable Music</object>
 				<object name="musicCheckbox" size="100%-56 290 100%-30 315" type="checkbox" style="StoneCrossBox" checked="true">
 					<action on="Press">if (this.checked) global.music.start(); else global.music.stop();</action>
 				</object>
-
+				
 				<!-- Settings / Dev Overlay -->
 				<object size="0 310 100%-80 335" type="text" style="RightLabelText" ghost="true">Developer Overlay</object>
 				<object name="developerOverlayCheckbox" size="100%-56 315 100%-30 340" type="checkbox" style="StoneCrossBox" checked="false">
 					<action on="Press">toggleDeveloperOverlay();</action>
 				</object>
 			</object>
-
+			
 			<!-- Close button -->
 			<object type="button"
 				style="StoneButton"
@@ -640,7 +640,7 @@
 	    </object>
 
 		<object size="100%-348 40 100%-198 65" name="gameSpeed" type="dropdown" buffer_zone="5" style="StoneDropDown" hidden="true" tooltip="Choose game speed" tooltip_style="sessionToolTip"/>
-
+		
 	    <!-- ================================  ================================ -->
 	    <!-- Diplomacy Button -->
 	    <!-- ================================  ================================ -->
@@ -790,12 +790,12 @@
 	    name="unitHeroPanel"
 	    size="0 36 50 86"
 	>
-		<object name="unitHeroButton" size="0 0 50 50" type="button" hidden="false" style="iconButton"
+		<object name="unitHeroButton" size="0 0 50 50" type="button" hidden="false" style="iconButton" 
 			tooltip_style="sessionToolTip" tooltip="Attack and Armor">
 			<object name="unitHeroImage" size="5 5 100%-5 100%-5" type="image" ghost="true"/>
 		</object>
 	</object>
-
+	
 	<!-- ================================  ================================ -->
 	<!-- Unit Selection Groups -->
 	<!-- ================================  ================================ -->
@@ -896,7 +896,7 @@
 		    </object>
 		</object>
 
-		<object name="unitBarterPanel"
+		<object name="unitBarterPanel" 
 			size="6 36 100% 100%"
 			hidden="true"
 		>
@@ -950,10 +950,10 @@
 	    >
 		<!-- Unit details for Single Unit -->
 		<object size="50%-112 0 50%+112 100%" name="detailsAreaSingle">
-
+		    
 		    <!-- Stats Bars -->
 		    <object size= "2 0 100%-2 98" type="image" tooltip_style="sessionToolTip">
-
+			
 			<object size="0 8 100% 60" type="image" sprite="edgedPanelShader">
 			    <!-- Health bar -->
 			    <object size="88 0 100% 24" name="healthSection">
@@ -991,25 +991,21 @@
 				</object>
 			    </object>
 			</object>
-
+			
 			<object size="0 60 100% 96" type="image" sprite="edgedPanelShader">
 			    <!-- Attack and Armor -->
 			    <object size="90 -2 126 34" name="attackAndArmorStats" type="image" sprite="stretched:session/icons/stances/defensive.png" tooltip="Attack and Armor" tooltip_style="sessionToolTip"/>
 
 			    <!-- Resource carrying icon/counter -->
 			    <!-- Used also for number of gatherers/builders -->
-			    <object size="100%-78 -2 100%-84 34" type="text" name="resourceCarryingText" style="CarryingTextRight"/>
-			    <object size="100%-36 -2 100%-56 34" type="image" name="resourceCarryingIcon" tooltip_style="sessionToolTip"/>
-
-				<!-- Throughput of this resource in resources/second -->
-				<object size="100%-10 -2 100%-28 34" type="text" name="resourceThroughputText" style="CarryingTextRight"/>
-				<object size="100%-5 -2 100% 34" type="text" name="resourceThroughputIcon" tooltip_style="sessionToolTip"/>
+			    <object size="100%-98 -2 100%-28 34" type="text" name="resourceCarryingText" style="CarryingTextRight"/>
+			    <object size="100%-36 -2 100% 34" type="image" name="resourceCarryingIcon" tooltip_style="sessionToolTip"/>
 			</object>
-
+			
 			<!-- Big unit icon -->
 			<object size="-8 -8 88 88" type="image" name="iconBorder" sprite="iconBorder" tooltip_style="sessionToolTip">
 			    <object size="1 1 100%-1 100%-1" type="image" name="icon" ghost="true"/>
-
+			
 			    <!-- Experience bar -->
 			    <object size="2 2 6 100%-2" type="image" name="experience" tooltip="Experience" tooltip_style="sessionToolTip">
 				<object type="image" sprite="barBorder" ghost="true" size="-1 -1 100%+1 100%+1"/>
@@ -1017,18 +1013,18 @@
 				<object type="image" sprite="experienceForeground" ghost="true" name="experienceBar"/>
 				<object type="image" sprite="statsBarShaderVertical" ghost="true"/>
 			    </object>
-
+			
 			    <object z="20" size="4 4 20 20" name="rankIcon" type="image" tooltip="Rank" tooltip_style="sessionToolTip"/>
 			</object>
 		    </object>
-
+		    
 		    <!-- Names (this must come before the attack and armor icon to avoid clipping issues) -->
 		    <object size="2 96 100%-2 100%-36" name="statsArea" type="image" sprite="edgedPanelShader">
-
+			
 			<!-- These images are used to clip off the top and bottom of the civ icon -->
 			<object z="30" size="0 -5 100% 40" ghost="true" type="image" sprite="remove"/>
 			<object z="30" size="0 100%-5 100% 100%+40" ghost="true" type="image" sprite="remove"/>
-
+			
 			<object z="30" size="0 2 100% 45" ghost="true">
 			    <!-- Specific Name -->
 			    <object size="0 0 100% 20" name="specific" ghost="true" type="text" style="SpecificNameCentered"/>
@@ -1036,13 +1032,13 @@
 			    <!-- Generic Name -->
 			    <object size="0 15 100% 36" name="generic" ghost="true" type="text" style="GenericNameCentered"/>
 			</object>
-
+			
 			<!-- Player Name and Civ -->
 			<object size="0 40 100% 100%">
 			    <object size="50%-64 50%-64 50%+64 50%+64" name="playerCivIcon" type="image" ghost="true"/>
 			    <object size="0 0 100% 100%" name="playerColorBackground" type="image" sprite="playerColorBackground" ghost="true"/>
 			    <object size="0 0 100% 100%" type="image" sprite="bottomEdgedPanelShader" ghost="true"/>
-
+			    
 			    <!-- Why is this being automatically ghosted? In the mean time, set ghost to false -->
 			    <object ghost="false" size="0 0 100% 100%-5" name="player" type="text" style="largeCenteredOutlinedText" tooltip_style="sessionToolTip"/>
 			</object>
@@ -1216,7 +1212,7 @@
 			</repeat>
 		    </object>
 		</object>
-
+    
     <object name="unitPackPanel"
 			size="10 12 100% 100%"
 		>
diff --git a/binaries/data/mods/public/simulation/components/GuiInterface.js b/binaries/data/mods/public/simulation/components/GuiInterface.js
index aad16514a3..56501a16f4 100644
--- a/binaries/data/mods/public/simulation/components/GuiInterface.js
+++ b/binaries/data/mods/public/simulation/components/GuiInterface.js
@@ -26,13 +26,13 @@ GuiInterface.prototype.Init = function()
 };
 
 /*
- * All of the functions defined below are called via Engine.GuiInterfaceCall(name, arg)
- * from GUI scripts, and executed here with arguments (player, arg).
- *
- * CAUTION: The input to the functions in this module is not network-synchronised, so it
- * mustn't affect the simulation state (i.e. the data that is serialised and can affect
- * the behaviour of the rest of the simulation) else it'll cause out-of-sync errors.
- */
+ * All of the functions defined below are called via Engine.GuiInterfaceCall(name, arg)
+ * from GUI scripts, and executed here with arguments (player, arg).
+ * 
+ * CAUTION: The input to the functions in this module is not network-synchronised, so it 
+ * mustn't affect the simulation state (i.e. the data that is serialised and can affect 
+ * the behaviour of the rest of the simulation) else it'll cause out-of-sync errors.
+ */
 
 /**
  * Returns global information about the current game state.
@@ -41,29 +41,29 @@ GuiInterface.prototype.Init = function()
 GuiInterface.prototype.GetSimulationState = function(player)
 {
 	var ret = {
-		"players": []
-	};
-
-	var cmpPlayerMan = Engine.QueryInterface(SYSTEM_ENTITY, IID_PlayerManager);
-	var n = cmpPlayerMan.GetNumPlayers();
+		"players": []
+	};
+	
+	var cmpPlayerMan = Engine.QueryInterface(SYSTEM_ENTITY, IID_PlayerManager);
+	var n = cmpPlayerMan.GetNumPlayers();
 	for (var i = 0; i < n; ++i)
 	{
 		var playerEnt = cmpPlayerMan.GetPlayerByID(i);
-		var cmpPlayerEntityLimits = Engine.QueryInterface(playerEnt, IID_EntityLimits);
-		var cmpPlayer = Engine.QueryInterface(playerEnt, IID_Player);
-
-		// Work out what phase we are in
-		var cmpTechnologyManager = Engine.QueryInterface(playerEnt, IID_TechnologyManager);
+		var cmpPlayerEntityLimits = Engine.QueryInterface(playerEnt, IID_EntityLimits);
+		var cmpPlayer = Engine.QueryInterface(playerEnt, IID_Player);
+		
+		// Work out what phase we are in
+		var cmpTechnologyManager = Engine.QueryInterface(playerEnt, IID_TechnologyManager);
 		var phase = "";
 		if (cmpTechnologyManager.IsTechnologyResearched("phase_city"))
 			phase = "city";
 		else if (cmpTechnologyManager.IsTechnologyResearched("phase_town"))
 			phase = "town";
-		else if (cmpTechnologyManager.IsTechnologyResearched("phase_village"))
-			phase = "village";
-
-		// store player ally/neutral/enemy data as arrays
-		var allies = [];
+		else if (cmpTechnologyManager.IsTechnologyResearched("phase_village"))
+			phase = "village";
+		
+		// store player ally/neutral/enemy data as arrays
+		var allies = [];
 		var mutualAllies = [];
 		var neutrals = [];
 		var enemies = [];
@@ -108,11 +108,11 @@ GuiInterface.prototype.GetSimulationState = function(player)
 	var cmpRangeManager = Engine.QueryInterface(SYSTEM_ENTITY, IID_RangeManager);
 	if (cmpRangeManager)
 	{
-		ret.circularMap = cmpRangeManager.GetLosCircular();
-	}
-
-	// Add timeElapsed
-	var cmpTimer = Engine.QueryInterface(SYSTEM_ENTITY, IID_Timer);
+		ret.circularMap = cmpRangeManager.GetLosCircular();
+	}
+	
+	// Add timeElapsed
+	var cmpTimer = Engine.QueryInterface(SYSTEM_ENTITY, IID_Timer);
 	ret.timeElapsed = cmpTimer.GetTime();
 
 	return ret;
@@ -167,11 +167,11 @@ GuiInterface.prototype.GetEntityState = function(player, ent)
 			"rank": cmpIdentity.GetRank(),
 			"classes": cmpIdentity.GetClassesList(),
 			"selectionGroupName": cmpIdentity.GetSelectionGroupName()
-		};
-	}
-
-	var cmpPosition = Engine.QueryInterface(ent, IID_Position);
-	if (cmpPosition && cmpPosition.IsInWorld())
+		};
+	}
+	
+	var cmpPosition = Engine.QueryInterface(ent, IID_Position);
+	if (cmpPosition && cmpPosition.IsInWorld())
 	{
 		ret.position = cmpPosition.GetPosition();
 		ret.rotation = cmpPosition.GetRotation();
@@ -214,11 +214,11 @@ GuiInterface.prototype.GetEntityState = function(player, ent)
 			else
 			{
 				// not in world, set a default?
-				ret.attack.elevationAdaptedRange = ret.attack.maxRange;
-			}
-
-		}
-		else
+				ret.attack.elevationAdaptedRange = ret.attack.maxRange;
+			}
+			
+		}
+		else
 		{
 			// not a ranged attack, set some defaults
 			ret.attack.elevationBonus = 0;
@@ -298,14 +298,11 @@ GuiInterface.prototype.GetEntityState = function(player, ent)
 			"max": cmpResourceSupply.GetMaxAmount(),
 			"amount": cmpResourceSupply.GetCurrentAmount(),
 			"type": cmpResourceSupply.GetType(),
-			"killBeforeGather": cmpResourceSupply.GetKillBeforeGather(),
-			"maxGatherers": cmpResourceSupply.GetMaxGatherers(),
-			"gatherers": cmpResourceSupply.GetGatherers(),
-            "throughput": cmpResourceSupply.GetGatherers().reduce(function (total, e)
-                total + Engine.QueryInterface(e, IID_ResourceGatherer).GetTargetGatherRate(ent)
-            , 0)
-		};
-	}
+			"killBeforeGather": cmpResourceSupply.GetKillBeforeGather(),
+			"maxGatherers": cmpResourceSupply.GetMaxGatherers(),
+			"gatherers": cmpResourceSupply.GetGatherers()
+		};
+	}
 
 	var cmpResourceGatherer = Engine.QueryInterface(ent, IID_ResourceGatherer);
 	if (cmpResourceGatherer)
@@ -335,11 +332,11 @@ GuiInterface.prototype.GetEntityState = function(player, ent)
 			"entities": cmpGarrisonHolder.GetEntities(),
 			"allowedClasses": cmpGarrisonHolder.GetAllowedClassesList(),
 			"capacity": cmpGarrisonHolder.GetCapacity()
-		};
-	}
-
-	var cmpPromotion = Engine.QueryInterface(ent, IID_Promotion);
-	if (cmpPromotion)
+		};
+	}
+	
+	var cmpPromotion = Engine.QueryInterface(ent, IID_Promotion);
+	if (cmpPromotion)
 	{
 		ret.promotion = {
 			"curr": cmpPromotion.GetCurrentXp(),
@@ -362,22 +359,22 @@ GuiInterface.prototype.GetEntityState = function(player, ent)
 	if (cmpGate)
 	{
 		ret.gate = {
-			"locked": cmpGate.IsLocked(),
-		};
-	}
-
-	if (!cmpFoundation && cmpIdentity && cmpIdentity.HasClass("BarterMarket"))
+			"locked": cmpGate.IsLocked(),
+		};
+	}	
+
+	if (!cmpFoundation && cmpIdentity && cmpIdentity.HasClass("BarterMarket"))
 	{
 		var cmpBarter = Engine.QueryInterface(SYSTEM_ENTITY, IID_Barter);
 		ret.barterMarket = { "prices": cmpBarter.GetPrices() };
 	}
 
 	var cmpHeal = Engine.QueryInterface(ent, IID_Heal);
-	if (cmpHeal)
-	{
-		ret.Healer = {
-			"unhealableClasses": cmpHeal.GetUnhealableClasses(),
-			"healableClasses": cmpHeal.GetHealableClasses(),
+	if (cmpHeal)
+	{
+		ret.Healer = { 
+			"unhealableClasses": cmpHeal.GetUnhealableClasses(),
+			"healableClasses": cmpHeal.GetHealableClasses(),
 		};
 	}
 
@@ -425,11 +422,11 @@ GuiInterface.prototype.GetTemplateData = function(player, extendedName)
 			"hack": GetTechModifiedProperty(techMods, template, "Armour/Hack", +template.Armour.Hack),
 			"pierce": GetTechModifiedProperty(techMods, template, "Armour/Pierce", +template.Armour.Pierce),
 			"crush": GetTechModifiedProperty(techMods, template, "Armour/Crush", +template.Armour.Crush),
-		};
-	}
-
-	if (template.Attack)
-	{
+		};
+	}
+	
+	if (template.Attack)
+	{
 		ret.attack = {};
 		for (var type in template.Attack)
 		{
@@ -441,20 +438,20 @@ GuiInterface.prototype.GetTemplateData = function(player, extendedName)
 				"maxRange": GetTechModifiedProperty(techMods, template, "Attack/"+type+"/MaxRange", +template.Attack[type].MaxRange),
 				"elevationBonus": GetTechModifiedProperty(techMods, template, "Attack/"+type+"/ElevationBonus", +(template.Attack[type].ElevationBonus || 0)),
 			};
-		}
-	}
-
-	if (template.BuildRestrictions)
-	{
+		}
+	}
+	
+	if (template.BuildRestrictions)
+	{
 		// required properties
 		ret.buildRestrictions = {
 			"placementType": template.BuildRestrictions.PlacementType,
 			"territory": template.BuildRestrictions.Territory,
-			"category": template.BuildRestrictions.Category,
-		};
-
-		// optional properties
-		if (template.BuildRestrictions.Distance)
+			"category": template.BuildRestrictions.Category,
+		};
+		
+		// optional properties
+		if (template.BuildRestrictions.Distance)
 		{
 			ret.buildRestrictions.distance = {
 				"fromCategory": template.BuildRestrictions.Distance.FromCategory,
@@ -480,23 +477,23 @@ GuiInterface.prototype.GetTemplateData = function(player, extendedName)
 		if (template.Cost.Resources.metal) ret.cost.metal = GetTechModifiedProperty(techMods, template, "Cost/Resources/metal", +template.Cost.Resources.metal);
 		if (template.Cost.Population) ret.cost.population = GetTechModifiedProperty(techMods, template, "Cost/Population", +template.Cost.Population);
 		if (template.Cost.PopulationBonus) ret.cost.populationBonus = GetTechModifiedProperty(techMods, template, "Cost/PopulationBonus", +template.Cost.PopulationBonus);
-		if (template.Cost.BuildTime) ret.cost.time = GetTechModifiedProperty(techMods, template, "Cost/BuildTime", +template.Cost.BuildTime);
-	}
-
-	if (template.Footprint)
-	{
-		ret.footprint = {"height": template.Footprint.Height};
-
-		if (template.Footprint.Square)
-			ret.footprint.square = {"width": +template.Footprint.Square["@width"], "depth": +template.Footprint.Square["@depth"]};
+		if (template.Cost.BuildTime) ret.cost.time = GetTechModifiedProperty(techMods, template, "Cost/BuildTime", +template.Cost.BuildTime);
+	}
+	
+	if (template.Footprint)
+	{
+		ret.footprint = {"height": template.Footprint.Height};
+		
+		if (template.Footprint.Square)
+			ret.footprint.square = {"width": +template.Footprint.Square["@width"], "depth": +template.Footprint.Square["@depth"]};
 		else if (template.Footprint.Circle)
 			ret.footprint.circle = {"radius": +template.Footprint.Circle["@radius"]};
 		else
-			warn("[GetTemplateData] Unrecognized Footprint type");
-	}
-
-	if (template.Obstruction)
-	{
+			warn("[GetTemplateData] Unrecognized Footprint type");
+	}
+	
+	if (template.Obstruction)
+	{
 		ret.obstruction = {
 			"active": ("" + template.Obstruction.Active == "true"),
 			"blockMovement": ("" + template.Obstruction.BlockMovement == "true"),
@@ -505,11 +502,11 @@ GuiInterface.prototype.GetTemplateData = function(player, extendedName)
 			"blockConstruction": ("" + template.Obstruction.BlockConstruction == "true"),
 			"disableBlockMovement": ("" + template.Obstruction.DisableBlockMovement == "true"),
 			"disableBlockPathfinding": ("" + template.Obstruction.DisableBlockPathfinding == "true"),
-			"shape": {}
-		};
-
-		if (template.Obstruction.Static)
-		{
+			"shape": {}
+		};
+		
+		if (template.Obstruction.Static)
+		{
 			ret.obstruction.shape.type = "static";
 			ret.obstruction.shape.width = +template.Obstruction.Static["@width"];
 			ret.obstruction.shape.depth = +template.Obstruction.Static["@depth"];
@@ -574,11 +571,11 @@ GuiInterface.prototype.GetTemplateData = function(player, extendedName)
 			},
 			"maxTowerOverlap": +template.WallSet.MaxTowerOverlap,
 			"minTowerOverlap": +template.WallSet.MinTowerOverlap,
-		};
-	}
-
-	if (template.WallPiece)
-	{
+		};
+	}
+	
+	if (template.WallPiece)
+	{
 		ret.wallPiece = {"length": +template.WallPiece.Length};
 	}
 
@@ -587,30 +584,30 @@ GuiInterface.prototype.GetTemplateData = function(player, extendedName)
 
 GuiInterface.prototype.GetTechnologyData = function(player, name)
 {
-	var cmpTechTempMan = Engine.QueryInterface(SYSTEM_ENTITY, IID_TechnologyTemplateManager);
-	var template = cmpTechTempMan.GetTemplate(name);
-
-	if (!template)
-	{
+	var cmpTechTempMan = Engine.QueryInterface(SYSTEM_ENTITY, IID_TechnologyTemplateManager);
+	var template = cmpTechTempMan.GetTemplate(name);
+	
+	if (!template)
+	{
 		warn("Tried to get data for invalid technology: " + name);
-		return null;
-	}
-
-	var ret = {};
-
-	// Get specific name for this civ or else the generic specific name
-	var cmpPlayer = QueryPlayerIDInterface(player, IID_Player);
-	var specific = undefined;
+		return null;
+	}
+	
+	var ret = {};
+	
+	// Get specific name for this civ or else the generic specific name 
+	var cmpPlayer = QueryPlayerIDInterface(player, IID_Player);
+	var specific = undefined;
 	if (template.specificName)
 	{
 		if (template.specificName[cmpPlayer.GetCiv()])
 			specific = template.specificName[cmpPlayer.GetCiv()];
 		else
-			specific = template.specificName['generic'];
-	}
-
-	ret.name = {
-		"specific": specific,
+			specific = template.specificName['generic'];
+	}
+	
+	ret.name = {
+		"specific": specific,
 		"generic": template.genericName,
 	};
 	ret.icon = "technologies/" + template.icon;
@@ -620,39 +617,39 @@ GuiInterface.prototype.GetTechnologyData = function(player, name)
 		"metal": template.cost ? (+template.cost.metal) : 0,
 		"stone": template.cost ? (+template.cost.stone) : 0,
 		"time": template.researchTime ? (+template.researchTime) : 0,
-	}
-	ret.tooltip = template.tooltip;
-
-	if (template.requirementsTooltip)
-		ret.requirementsTooltip = template.requirementsTooltip;
-	else
-		ret.requirementsTooltip = "";
-
-	ret.description = template.description;
-
-	return ret;
-};
+	}
+	ret.tooltip = template.tooltip;
+	
+	if (template.requirementsTooltip)
+		ret.requirementsTooltip = template.requirementsTooltip;
+	else
+		ret.requirementsTooltip = "";
+	
+	ret.description = template.description;
+	
+	return ret;
+};
 
 GuiInterface.prototype.IsTechnologyResearched = function(player, tech)
-{
-	var cmpTechnologyManager = QueryPlayerIDInterface(player, IID_TechnologyManager);
-
-	if (!cmpTechnologyManager)
-		return false;
-
-	return cmpTechnologyManager.IsTechnologyResearched(tech);
-};
+{
+	var cmpTechnologyManager = QueryPlayerIDInterface(player, IID_TechnologyManager);
+	
+	if (!cmpTechnologyManager)
+		return false;
+	
+	return cmpTechnologyManager.IsTechnologyResearched(tech);
+};
 
 // Checks whether the requirements for this technology have been met
 GuiInterface.prototype.CheckTechnologyRequirements = function(player, tech)
-{
-	var cmpTechnologyManager = QueryPlayerIDInterface(player, IID_TechnologyManager);
-
-	if (!cmpTechnologyManager)
-		return false;
-
-	return cmpTechnologyManager.CanResearch(tech);
-};
+{
+	var cmpTechnologyManager = QueryPlayerIDInterface(player, IID_TechnologyManager);
+	
+	if (!cmpTechnologyManager)
+		return false;
+	
+	return cmpTechnologyManager.CanResearch(tech);
+};
 
 // Returns technologies that are being actively researched, along with
 // which entity is researching them and how far along the research is.
@@ -752,11 +749,11 @@ GuiInterface.prototype.IsStanceSelected = function(player, data)
 
 GuiInterface.prototype.SetSelectionHighlight = function(player, cmd, selected)
 {
-	var cmpPlayerMan = Engine.QueryInterface(SYSTEM_ENTITY, IID_PlayerManager);
-	var playerColours = {}; // cache of owner -> colour map
-
-	for each (var ent in cmd.entities)
-	{
+	var cmpPlayerMan = Engine.QueryInterface(SYSTEM_ENTITY, IID_PlayerManager);
+	var playerColours = {}; // cache of owner -> colour map
+	
+	for each (var ent in cmd.entities)
+	{
 		var cmpSelectable = Engine.QueryInterface(ent, IID_Selectable);
 		if (!cmpSelectable)
 			continue;
@@ -797,15 +794,15 @@ GuiInterface.prototype.GetPlayerEntities = function(player)
 	return cmpRangeManager.GetEntitiesByPlayer(player);
 };
 
-/**
- * Displays the rally points of a given list of entities (carried in cmd.entities).
- *
- * The 'cmd' object may carry its own x/z coordinate pair indicating the location where the rally point should
- * be rendered, in order to support instantaneously rendering a rally point marker at a specified location
- * instead of incurring a delay while PostNetworkCommand processes the set-rallypoint command (see input.js).
- * If cmd doesn't carry a custom location, then the position to render the marker at will be read from the
- * RallyPoint component.
- */
+/**
+ * Displays the rally points of a given list of entities (carried in cmd.entities).
+ * 
+ * The 'cmd' object may carry its own x/z coordinate pair indicating the location where the rally point should 
+ * be rendered, in order to support instantaneously rendering a rally point marker at a specified location 
+ * instead of incurring a delay while PostNetworkCommand processes the set-rallypoint command (see input.js).
+ * If cmd doesn't carry a custom location, then the position to render the marker at will be read from the 
+ * RallyPoint component.
+ */
 GuiInterface.prototype.DisplayRallyPoint = function(player, cmd)
 {
 	var cmpPlayerMan = Engine.QueryInterface(SYSTEM_ENTITY, IID_PlayerManager);
@@ -816,20 +813,20 @@ GuiInterface.prototype.DisplayRallyPoint = function(player, cmd)
 	{
 		var cmpRallyPointRenderer = Engine.QueryInterface(ent, IID_RallyPointRenderer);
 		if (cmpRallyPointRenderer)
-			cmpRallyPointRenderer.SetDisplayed(false);
-	}
-
-	this.entsRallyPointsDisplayed = [];
-
-	// Show the rally points for the passed entities
-	for each (var ent in cmd.entities)
+			cmpRallyPointRenderer.SetDisplayed(false);
+	}
+	
+	this.entsRallyPointsDisplayed = [];
+	
+	// Show the rally points for the passed entities
+	for each (var ent in cmd.entities)
 	{
 		var cmpRallyPointRenderer = Engine.QueryInterface(ent, IID_RallyPointRenderer);
-		if (!cmpRallyPointRenderer)
-			continue;
-
-		// entity must have a rally point component to display a rally point marker
-		// (regardless of whether cmd specifies a custom location)
+		if (!cmpRallyPointRenderer)
+			continue;
+		
+		// entity must have a rally point component to display a rally point marker
+		// (regardless of whether cmd specifies a custom location)
 		var cmpRallyPoint = Engine.QueryInterface(ent, IID_RallyPoint);
 		if (!cmpRallyPoint)
 			continue;
@@ -842,11 +839,11 @@ GuiInterface.prototype.DisplayRallyPoint = function(player, cmd)
 
 		// If the command was passed an explicit position, use that and
 		// override the real rally point position; otherwise use the real position
-		var pos;
-		if (cmd.x && cmd.z)
-			pos = cmd;
-		else
-			pos = cmpRallyPoint.GetPositions()[0]; // may return undefined if no rally point is set
+		var pos;
+		if (cmd.x && cmd.z)
+			pos = cmd; 
+		else
+			pos = cmpRallyPoint.GetPositions()[0]; // may return undefined if no rally point is set
 
 		if (pos)
 		{
@@ -854,22 +851,22 @@ GuiInterface.prototype.DisplayRallyPoint = function(player, cmd)
 			if (cmd.queued == true)
 				cmpRallyPointRenderer.AddPosition({'x': pos.x, 'y': pos.z}); // AddPosition takes a CFixedVector2D which has X/Y components, not X/Z
 			else if (cmd.queued == false)
-				cmpRallyPointRenderer.SetPosition({'x': pos.x, 'y': pos.z}); // SetPosition takes a CFixedVector2D which has X/Y components, not X/Z
-			cmpRallyPointRenderer.SetDisplayed(true);
-
-			// remember which entities have their rally points displayed so we can hide them again
-			this.entsRallyPointsDisplayed.push(ent);
+				cmpRallyPointRenderer.SetPosition({'x': pos.x, 'y': pos.z}); // SetPosition takes a CFixedVector2D which has X/Y components, not X/Z
+			cmpRallyPointRenderer.SetDisplayed(true);
+			
+			// remember which entities have their rally points displayed so we can hide them again
+			this.entsRallyPointsDisplayed.push(ent);
 		}
 	}
 };
 
 /**
  * Display the building placement preview.
- * cmd.template is the name of the entity template, or "" to disable the preview.
- * cmd.x, cmd.z, cmd.angle give the location.
- *
- * Returns result object from CheckPlacement:
- * 	{
+ * cmd.template is the name of the entity template, or "" to disable the preview.
+ * cmd.x, cmd.z, cmd.angle give the location.
+ * 
+ * Returns result object from CheckPlacement:
+ * 	{
  *		"success":	true iff the placement is valid, else false
  *		"message":	message to display in UI for invalid placement, else empty string
  *  }
@@ -937,47 +934,47 @@ GuiInterface.prototype.SetBuildingPlacementPreview = function(player, cmd)
 
 	return result;
 };
-
-/**
- * Previews the placement of a wall between cmd.start and cmd.end, or just the starting piece of a wall if cmd.end is not
- * specified. Returns an object with information about the list of entities that need to be newly constructed to complete
- * at least a part of the wall, or false if there are entities required to build at least part of the wall but none of
- * them can be validly constructed.
- *
- * It's important to distinguish between three lists of entities that are at play here, because they may be subsets of one
- * another depending on things like snapping and whether some of the entities inside them can be validly positioned.
+
+/**
+ * Previews the placement of a wall between cmd.start and cmd.end, or just the starting piece of a wall if cmd.end is not 
+ * specified. Returns an object with information about the list of entities that need to be newly constructed to complete
+ * at least a part of the wall, or false if there are entities required to build at least part of the wall but none of
+ * them can be validly constructed.
+ * 
+ * It's important to distinguish between three lists of entities that are at play here, because they may be subsets of one
+ * another depending on things like snapping and whether some of the entities inside them can be validly positioned.
  * We have:
  *    - The list of entities that previews the wall. This list is usually equal to the entities required to construct the
- *      entire wall. However, if there is snapping to an incomplete tower (i.e. a foundation), it includes extra entities
- *      to preview the completed tower on top of its foundation.
- *
- *    - The list of entities that need to be newly constructed to build the entire wall. This list is regardless of whether
- *      any of them can be validly positioned. The emphasishere here is on 'newly'; this list does not include any existing
+ *      entire wall. However, if there is snapping to an incomplete tower (i.e. a foundation), it includes extra entities
+ *      to preview the completed tower on top of its foundation.
+ *      
+ *    - The list of entities that need to be newly constructed to build the entire wall. This list is regardless of whether
+ *      any of them can be validly positioned. The emphasishere here is on 'newly'; this list does not include any existing
  *      towers at either side of the wall that we snapped to. Or, more generally; it does not include any _entities_ that we
- *      snapped to; we might still snap to e.g. terrain, in which case the towers on either end will still need to be newly
- *      constructed.
- *
- *    - The list of entities that need to be newly constructed to build at least a part of the wall. This list is the same
- *      as the one above, except that it is truncated at the first entity that cannot be validly positioned. This happens
- *      e.g. if the player tries to build a wall straight through an obstruction. Note that any entities that can be validly
- *      constructed but come after said first invalid entity are also truncated away.
- *
- * With this in mind, this method will return false if the second list is not empty, but the third one is. That is, if there
- * were entities that are needed to build the wall, but none of them can be validly constructed. False is also returned in
- * case of unexpected errors (typically missing components), and when clearing the preview by passing an empty wallset
- * argument (see below). Otherwise, it will return an object with the following information:
- *
- * result: {
- *   'startSnappedEnt':   ID of the entity that we snapped to at the starting side of the wall. Currently only supports towers.
+ *      snapped to; we might still snap to e.g. terrain, in which case the towers on either end will still need to be newly
+ *      constructed.
+ *      
+ *    - The list of entities that need to be newly constructed to build at least a part of the wall. This list is the same
+ *      as the one above, except that it is truncated at the first entity that cannot be validly positioned. This happens
+ *      e.g. if the player tries to build a wall straight through an obstruction. Note that any entities that can be validly
+ *      constructed but come after said first invalid entity are also truncated away.
+ * 
+ * With this in mind, this method will return false if the second list is not empty, but the third one is. That is, if there
+ * were entities that are needed to build the wall, but none of them can be validly constructed. False is also returned in
+ * case of unexpected errors (typically missing components), and when clearing the preview by passing an empty wallset
+ * argument (see below). Otherwise, it will return an object with the following information:
+ * 
+ * result: {
+ *   'startSnappedEnt':   ID of the entity that we snapped to at the starting side of the wall. Currently only supports towers.
  *   'endSnappedEnt':     ID of the entity that we snapped to at the (possibly truncated) ending side of the wall. Note that this
  *                        can only be set if no truncation of the second list occurs; if we snapped to an entity at the ending side
  *                        but the wall construction was truncated before we could reach it, it won't be set here. Currently only
  *                        supports towers.
- *   'pieces':            Array with the following data for each of the entities in the third list:
- *    [{
- *       'template':      Template name of the entity.
- *       'x':             X coordinate of the entity's position.
- *       'z':             Z coordinate of the entity's position.
+ *   'pieces':            Array with the following data for each of the entities in the third list:
+ *    [{
+ *       'template':      Template name of the entity. 
+ *       'x':             X coordinate of the entity's position.
+ *       'z':             Z coordinate of the entity's position.
  *       'angle':         Rotation around the Y axis of the entity (in radians).
  *     },
  *     ...]
@@ -988,11 +985,11 @@ GuiInterface.prototype.SetBuildingPlacementPreview = function(player, cmd)
  *     'metal': ...,
  *     'population': ...,
  *     'populationBonus': ...,
- *   }
- * }
- *
- * @param cmd.wallSet Object holding the set of wall piece template names. Set to an empty value to clear the preview.
- * @param cmd.start Starting point of the wall segment being created.
+ *   }
+ * }
+ * 
+ * @param cmd.wallSet Object holding the set of wall piece template names. Set to an empty value to clear the preview.
+ * @param cmd.start Starting point of the wall segment being created.
  * @param cmd.end (Optional) Ending point of the wall segment being created. If not defined, it is understood that only
  *                 the starting point of the wall is available at this time (e.g. while the player is still in the process
  *                 of picking a starting point), and that therefore only the first entity in the wall (a tower) should be
@@ -1000,45 +997,45 @@ GuiInterface.prototype.SetBuildingPlacementPreview = function(player, cmd)
  * @param cmd.snapEntities List of candidate entities to snap the start and ending positions to.
  */
 GuiInterface.prototype.SetWallPlacementPreview = function(player, cmd)
-{
-	var wallSet = cmd.wallSet;
-
-	var start = {
-		"pos": cmd.start,
+{
+	var wallSet = cmd.wallSet;
+	
+	var start = {
+		"pos": cmd.start,
 		"angle": 0,
 		"snapped": false,                       // did the start position snap to anything?
-		"snappedEnt": INVALID_ENTITY,           // if we snapped, was it to an entity? if yes, holds that entity's ID
-	};
-
-	var end = {
-		"pos": cmd.end,
+		"snappedEnt": INVALID_ENTITY,           // if we snapped, was it to an entity? if yes, holds that entity's ID
+	};
+	
+	var end = {
+		"pos": cmd.end,
 		"angle": 0,
 		"snapped": false,                       // did the start position snap to anything?
-		"snappedEnt": INVALID_ENTITY,           // if we snapped, was it to an entity? if yes, holds that entity's ID
-	};
-
-	// --------------------------------------------------------------------------------
-	// do some entity cache management and check for snapping
-
-	if (!this.placementWallEntities)
-		this.placementWallEntities = {};
-
-	if (!wallSet)
-	{
+		"snappedEnt": INVALID_ENTITY,           // if we snapped, was it to an entity? if yes, holds that entity's ID
+	};
+	
+	// --------------------------------------------------------------------------------
+	// do some entity cache management and check for snapping
+	
+	if (!this.placementWallEntities)
+		this.placementWallEntities = {};
+	
+	if (!wallSet)
+	{
 		// we're clearing the preview, clear the entity cache and bail
 		var numCleared = 0;
 		for (var tpl in this.placementWallEntities)
 		{
-			for each (var ent in this.placementWallEntities[tpl].entities)
-				Engine.DestroyEntity(ent);
-
-			this.placementWallEntities[tpl].numUsed = 0;
-			this.placementWallEntities[tpl].entities = [];
-			// keep template data around
-		}
-
-		return false;
-	}
+			for each (var ent in this.placementWallEntities[tpl].entities)
+				Engine.DestroyEntity(ent);
+			
+			this.placementWallEntities[tpl].numUsed = 0;
+			this.placementWallEntities[tpl].entities = [];
+			// keep template data around
+		}
+		
+		return false;
+	}
 	else
 	{
 		// Move all existing cached entities outside of the world and reset their use count
@@ -1048,39 +1045,39 @@ GuiInterface.prototype.SetWallPlacementPreview = function(player, cmd)
 			{
 				var pos = Engine.QueryInterface(ent, IID_Position);
 				if (pos)
-					pos.MoveOutOfWorld();
-			}
-
-			this.placementWallEntities[tpl].numUsed = 0;
-		}
-
-		// Create cache entries for templates we haven't seen before
-		for each (var tpl in wallSet.templates)
+					pos.MoveOutOfWorld();
+			}
+			
+			this.placementWallEntities[tpl].numUsed = 0;
+		}
+		
+		// Create cache entries for templates we haven't seen before
+		for each (var tpl in wallSet.templates)
 		{
 			if (!(tpl in this.placementWallEntities))
 			{
 				this.placementWallEntities[tpl] = {
 					"numUsed": 0,
 					"entities": [],
-					"templateData": this.GetTemplateData(player, tpl),
-				};
-
-				// ensure that the loaded template data contains a wallPiece component
-				if (!this.placementWallEntities[tpl].templateData.wallPiece)
+					"templateData": this.GetTemplateData(player, tpl),
+				};
+				
+				// ensure that the loaded template data contains a wallPiece component
+				if (!this.placementWallEntities[tpl].templateData.wallPiece)
 				{
 					error("[SetWallPlacementPreview] No WallPiece component found for wall set template '" + tpl + "'");
 					return false;
 				}
 			}
-		}
-	}
-
-	// prevent division by zero errors further on if the start and end positions are the same
-	if (end.pos && (start.pos.x === end.pos.x && start.pos.z === end.pos.z))
-		end.pos = undefined;
-
-	// See if we need to snap the start and/or end coordinates to any of our list of snap entities. Note that, despite the list
-	// of snapping candidate entities, it might still snap to e.g. terrain features. Use the "ent" key in the returned snapping
+		}
+	}
+	
+	// prevent division by zero errors further on if the start and end positions are the same
+	if (end.pos && (start.pos.x === end.pos.x && start.pos.z === end.pos.z))
+		end.pos = undefined;
+	
+	// See if we need to snap the start and/or end coordinates to any of our list of snap entities. Note that, despite the list
+	// of snapping candidate entities, it might still snap to e.g. terrain features. Use the "ent" key in the returned snapping
 	// data to determine whether it snapped to an entity (if any), and to which one (see GetFoundationSnapData).
 	if (cmd.snapEntities)
 	{
@@ -1090,84 +1087,84 @@ GuiInterface.prototype.SetWallPlacementPreview = function(player, cmd)
 			"z": start.pos.z,
 			"template": wallSet.templates.tower,
 			"snapEntities": cmd.snapEntities,
-			"snapRadius": snapRadius,
-		});
-
-		if (startSnapData)
-		{
+			"snapRadius": snapRadius,
+		});
+		
+		if (startSnapData)
+		{
 			start.pos.x = startSnapData.x;
 			start.pos.z = startSnapData.z;
-			start.angle = startSnapData.angle;
-			start.snapped = true;
-
-			if (startSnapData.ent)
-				start.snappedEnt = startSnapData.ent;
-		}
-
-		if (end.pos)
-		{
+			start.angle = startSnapData.angle;
+			start.snapped = true;
+			
+			if (startSnapData.ent)
+				start.snappedEnt = startSnapData.ent; 
+		}
+		
+		if (end.pos)
+		{
 			var endSnapData = this.GetFoundationSnapData(player, {
 				"x": end.pos.x,
 				"z": end.pos.z,
 				"template": wallSet.templates.tower,
 				"snapEntities": cmd.snapEntities,
-				"snapRadius": snapRadius,
-			});
-
-			if (endSnapData)
-			{
+				"snapRadius": snapRadius,
+			});
+			
+			if (endSnapData)
+			{
 				end.pos.x = endSnapData.x;
 				end.pos.z = endSnapData.z;
-				end.angle = endSnapData.angle;
-				end.snapped = true;
-
-				if (endSnapData.ent)
-					end.snappedEnt = endSnapData.ent;
+				end.angle = endSnapData.angle;
+				end.snapped = true;
+				
+				if (endSnapData.ent)
+					end.snappedEnt = endSnapData.ent;
 			}
-		}
-	}
-
-	// clear the single-building preview entity (we'll be rolling our own)
-	this.SetBuildingPlacementPreview(player, {"template": ""});
-
-	// --------------------------------------------------------------------------------
-	// calculate wall placement and position preview entities
-
-	var result = {
-		"pieces": [],
-		"cost": {"food": 0, "wood": 0, "stone": 0, "metal": 0, "population": 0, "populationBonus": 0, "time": 0},
-	};
-
-	var previewEntities = [];
-	if (end.pos)
-		previewEntities = GetWallPlacement(this.placementWallEntities, wallSet, start, end); // see helpers/Walls.js
-
-	// For wall placement, we may (and usually do) need to have wall pieces overlap each other more than would
-	// otherwise be allowed by their obstruction shapes. However, during this preview phase, this is not so much of
-	// an issue, because all preview entities have their obstruction components deactivated, meaning that their
-	// obstruction shapes do not register in the simulation and hence cannot affect it. This implies that the preview
-	// entities cannot be found to obstruct each other, which largely solves the issue of overlap between wall pieces.
-
-	// Note that they will still be obstructed by existing shapes in the simulation (that have the BLOCK_FOUNDATION
-	// flag set), which is what we want. The only exception to this is when snapping to existing towers (or
+		}
+	}
+	
+	// clear the single-building preview entity (we'll be rolling our own)
+	this.SetBuildingPlacementPreview(player, {"template": ""});
+	
+	// --------------------------------------------------------------------------------
+	// calculate wall placement and position preview entities
+	
+	var result = {
+		"pieces": [],
+		"cost": {"food": 0, "wood": 0, "stone": 0, "metal": 0, "population": 0, "populationBonus": 0, "time": 0},
+	};
+	
+	var previewEntities = [];
+	if (end.pos)
+		previewEntities = GetWallPlacement(this.placementWallEntities, wallSet, start, end); // see helpers/Walls.js
+	
+	// For wall placement, we may (and usually do) need to have wall pieces overlap each other more than would 
+	// otherwise be allowed by their obstruction shapes. However, during this preview phase, this is not so much of
+	// an issue, because all preview entities have their obstruction components deactivated, meaning that their 
+	// obstruction shapes do not register in the simulation and hence cannot affect it. This implies that the preview
+	// entities cannot be found to obstruct each other, which largely solves the issue of overlap between wall pieces.
+	
+	// Note that they will still be obstructed by existing shapes in the simulation (that have the BLOCK_FOUNDATION
+	// flag set), which is what we want. The only exception to this is when snapping to existing towers (or
 	// foundations thereof); the wall segments that connect up to these will be found to be obstructed by the
 	// existing tower/foundation, and be shaded red to indicate that they cannot be placed there. To prevent this,
 	// we manually set the control group of the outermost wall pieces equal to those of the snapped-to towers, so
-	// that they are free from mutual obstruction (per definition of obstruction control groups). This is done by
-	// assigning them an extra "controlGroup" field, which we'll then set during the placement loop below.
-
-	// Additionally, in the situation that we're snapping to merely a foundation of a tower instead of a fully
-	// constructed one, we'll need an extra preview entity for the starting tower, which also must not be obstructed
-	// by the foundation it snaps to.
-
-	if (start.snappedEnt && start.snappedEnt != INVALID_ENTITY)
-	{
+	// that they are free from mutual obstruction (per definition of obstruction control groups). This is done by
+	// assigning them an extra "controlGroup" field, which we'll then set during the placement loop below.
+	
+	// Additionally, in the situation that we're snapping to merely a foundation of a tower instead of a fully
+	// constructed one, we'll need an extra preview entity for the starting tower, which also must not be obstructed
+	// by the foundation it snaps to.
+	
+	if (start.snappedEnt && start.snappedEnt != INVALID_ENTITY)
+	{
 		var startEntObstruction = Engine.QueryInterface(start.snappedEnt, IID_Obstruction);
-		if (previewEntities.length > 0 && startEntObstruction)
-			previewEntities[0].controlGroups = [startEntObstruction.GetControlGroup()];
-
-		// if we're snapping to merely a foundation, add an extra preview tower and also set it to the same control group
-		var startEntState = this.GetEntityState(player, start.snappedEnt);
+		if (previewEntities.length > 0 && startEntObstruction)
+			previewEntities[0].controlGroups = [startEntObstruction.GetControlGroup()];
+		
+		// if we're snapping to merely a foundation, add an extra preview tower and also set it to the same control group
+		var startEntState = this.GetEntityState(player, start.snappedEnt);
 		if (startEntState.foundation)
 		{
 			var cmpPosition = Engine.QueryInterface(start.snappedEnt, IID_Position);
@@ -1183,50 +1180,50 @@ GuiInterface.prototype.SetWallPlacementPreview = function(player, cmd)
 			}
 		}
 	}
-	else
-	{
-		// Didn't snap to an existing entity, add the starting tower manually. To prevent odd-looking rotation jumps
-		// when shift-clicking to build a wall, reuse the placement angle that was last seen on a validly positioned
-		// wall piece.
-
-		// To illustrate the last point, consider what happens if we used some constant instead, say, 0. Issuing the
-		// build command for a wall is asynchronous, so when the preview updates after shift-clicking, the wall piece
-		// foundations are not registered yet in the simulation. This means they cannot possibly be picked in the list
-		// of candidate entities for snapping. In the next preview update, we therefore hit this case, and would rotate
-		// the preview to 0 radians. Then, after one or two simulation updates or so, the foundations register and
-		// onSimulationUpdate in session.js updates the preview again. It first grabs a new list of snapping candidates,
-		// which this time does include the new foundations; so we snap to the entity, and rotate the preview back to
-		// the foundation's angle.
-
-		// The result is a noticeable rotation to 0 and back, which is undesirable. So, for a split second there until
-		// the simulation updates, we fake it by reusing the last angle and hope the player doesn't notice.
+	else
+	{
+		// Didn't snap to an existing entity, add the starting tower manually. To prevent odd-looking rotation jumps 
+		// when shift-clicking to build a wall, reuse the placement angle that was last seen on a validly positioned 
+		// wall piece.
+		
+		// To illustrate the last point, consider what happens if we used some constant instead, say, 0. Issuing the
+		// build command for a wall is asynchronous, so when the preview updates after shift-clicking, the wall piece
+		// foundations are not registered yet in the simulation. This means they cannot possibly be picked in the list
+		// of candidate entities for snapping. In the next preview update, we therefore hit this case, and would rotate
+		// the preview to 0 radians. Then, after one or two simulation updates or so, the foundations register and 
+		// onSimulationUpdate in session.js updates the preview again. It first grabs a new list of snapping candidates,
+		// which this time does include the new foundations; so we snap to the entity, and rotate the preview back to
+		// the foundation's angle.
+		
+		// The result is a noticeable rotation to 0 and back, which is undesirable. So, for a split second there until
+		// the simulation updates, we fake it by reusing the last angle and hope the player doesn't notice.
 		previewEntities.unshift({
 			"template": wallSet.templates.tower,
 			"pos": start.pos,
 			"angle": (previewEntities.length > 0 ? previewEntities[0].angle : this.placementWallLastAngle)
-		});
-	}
-
-	if (end.pos)
-	{
+		});
+	}
+	
+	if (end.pos)
+	{
 		// Analogous to the starting side case above
 		if (end.snappedEnt && end.snappedEnt != INVALID_ENTITY)
-		{
-			var endEntObstruction = Engine.QueryInterface(end.snappedEnt, IID_Obstruction);
-
-			// Note that it's possible for the last entity in previewEntities to be the same as the first, i.e. the
-			// same wall piece snapping to both a starting and an ending tower. And it might be more common than you would
+		{
+			var endEntObstruction = Engine.QueryInterface(end.snappedEnt, IID_Obstruction);
+			
+			// Note that it's possible for the last entity in previewEntities to be the same as the first, i.e. the
+			// same wall piece snapping to both a starting and an ending tower. And it might be more common than you would
 			// expect; the allowed overlap between wall segments and towers facilitates this to some degree. To deal with
 			// the possibility of dual initial control groups, we use a '.controlGroups' array rather than a single
 			// '.controlGroup' property. Note that this array can only ever have 0, 1 or 2 elements (checked at a later time).
 			if (previewEntities.length > 0 && endEntObstruction)
 			{
 				previewEntities[previewEntities.length-1].controlGroups = (previewEntities[previewEntities.length-1].controlGroups || []);
-				previewEntities[previewEntities.length-1].controlGroups.push(endEntObstruction.GetControlGroup());
-			}
-
-			// if we're snapping to a foundation, add an extra preview tower and also set it to the same control group
-			var endEntState = this.GetEntityState(player, end.snappedEnt);
+				previewEntities[previewEntities.length-1].controlGroups.push(endEntObstruction.GetControlGroup());
+			}
+			
+			// if we're snapping to a foundation, add an extra preview tower and also set it to the same control group
+			var endEntState = this.GetEntityState(player, end.snappedEnt);
 			if (endEntState.foundation)
 			{
 				var cmpPosition = Engine.QueryInterface(end.snappedEnt, IID_Position);
@@ -1249,41 +1246,41 @@ GuiInterface.prototype.SetWallPlacementPreview = function(player, cmd)
 				"pos": end.pos,
 				"angle": (previewEntities.length > 0 ? previewEntities[previewEntities.length-1].angle : this.placementWallLastAngle)
 			});
-		}
-	}
-
-	var cmpTerrain = Engine.QueryInterface(SYSTEM_ENTITY, IID_Terrain);
-	if (!cmpTerrain)
+		}
+	}
+	
+	var cmpTerrain = Engine.QueryInterface(SYSTEM_ENTITY, IID_Terrain);
+	if (!cmpTerrain)
 	{
 		error("[SetWallPlacementPreview] System Terrain component not found");
-		return false;
-	}
-
-	var cmpRangeManager = Engine.QueryInterface(SYSTEM_ENTITY, IID_RangeManager);
-	if (!cmpRangeManager)
+		return false;
+	}
+	
+	var cmpRangeManager = Engine.QueryInterface(SYSTEM_ENTITY, IID_RangeManager);
+	if (!cmpRangeManager)
 	{
 		error("[SetWallPlacementPreview] System RangeManager component not found");
-		return false;
-	}
-
-	// Loop through the preview entities, and construct the subset of them that need to be, and can be, validly constructed
-	// to build at least a part of the wall (meaning that the subset is truncated after the first entity that needs to be,
-	// but cannot validly be, constructed). See method-level documentation for more details.
-
-	var allPiecesValid = true;
-	var numRequiredPieces = 0; // number of entities that are required to build the entire wall, regardless of validity
-
-	for (var i = 0; i < previewEntities.length; ++i)
-	{
-		var entInfo = previewEntities[i];
-
-		var ent = null;
-		var tpl = entInfo.template;
-		var tplData = this.placementWallEntities[tpl].templateData;
-		var entPool = this.placementWallEntities[tpl];
-
-		if (entPool.numUsed >= entPool.entities.length)
-		{
+		return false;
+	}
+	
+	// Loop through the preview entities, and construct the subset of them that need to be, and can be, validly constructed
+	// to build at least a part of the wall (meaning that the subset is truncated after the first entity that needs to be,
+	// but cannot validly be, constructed). See method-level documentation for more details.
+	
+	var allPiecesValid = true;
+	var numRequiredPieces = 0; // number of entities that are required to build the entire wall, regardless of validity
+	
+	for (var i = 0; i < previewEntities.length; ++i)
+	{
+		var entInfo = previewEntities[i];
+		
+		var ent = null;
+		var tpl = entInfo.template;
+		var tplData = this.placementWallEntities[tpl].templateData;
+		var entPool = this.placementWallEntities[tpl];
+		
+		if (entPool.numUsed >= entPool.entities.length)
+		{
 			// allocate new entity
 			ent = Engine.AddLocalEntity("preview|" + tpl);
 			entPool.entities.push(ent);
@@ -1291,86 +1288,86 @@ GuiInterface.prototype.SetWallPlacementPreview = function(player, cmd)
 		else
 		{
 			 // reuse an existing one
-			ent = entPool.entities[entPool.numUsed];
-		}
-
-		if (!ent)
-		{
+			ent = entPool.entities[entPool.numUsed];
+		}
+		
+		if (!ent)
+		{
 			error("[SetWallPlacementPreview] Failed to allocate or reuse preview entity of template '" + tpl + "'");
-			continue;
-		}
-
-		// move piece to right location
-		// TODO: consider reusing SetBuildingPlacementReview for this, enhanced to be able to deal with multiple entities
+			continue;
+		}
+		
+		// move piece to right location
+		// TODO: consider reusing SetBuildingPlacementReview for this, enhanced to be able to deal with multiple entities
 		var cmpPosition = Engine.QueryInterface(ent, IID_Position);
 		if (cmpPosition)
 		{
-			cmpPosition.JumpTo(entInfo.pos.x, entInfo.pos.z);
-			cmpPosition.SetYRotation(entInfo.angle);
-
-			// if this piece is a tower, then it should have a Y position that is at least as high as its surrounding pieces
-			if (tpl === wallSet.templates.tower)
+			cmpPosition.JumpTo(entInfo.pos.x, entInfo.pos.z);
+			cmpPosition.SetYRotation(entInfo.angle);
+			
+			// if this piece is a tower, then it should have a Y position that is at least as high as its surrounding pieces
+			if (tpl === wallSet.templates.tower)
 			{
-				var terrainGroundPrev = null;
-				var terrainGroundNext = null;
-
-				if (i > 0)
-					terrainGroundPrev = cmpTerrain.GetGroundLevel(previewEntities[i-1].pos.x, previewEntities[i-1].pos.z);
-				if (i < previewEntities.length - 1)
-					terrainGroundNext = cmpTerrain.GetGroundLevel(previewEntities[i+1].pos.x, previewEntities[i+1].pos.z);
-
-				if (terrainGroundPrev != null || terrainGroundNext != null)
-				{
+				var terrainGroundPrev = null;
+				var terrainGroundNext = null;
+				
+				if (i > 0)
+					terrainGroundPrev = cmpTerrain.GetGroundLevel(previewEntities[i-1].pos.x, previewEntities[i-1].pos.z);
+				if (i < previewEntities.length - 1)
+					terrainGroundNext = cmpTerrain.GetGroundLevel(previewEntities[i+1].pos.x, previewEntities[i+1].pos.z);
+				
+				if (terrainGroundPrev != null || terrainGroundNext != null)
+				{
 					var targetY = Math.max(terrainGroundPrev, terrainGroundNext);
 					cmpPosition.SetHeightFixed(targetY);
 				}
-			}
-		}
-
-		var cmpObstruction = Engine.QueryInterface(ent, IID_Obstruction);
-		if (!cmpObstruction)
+			}
+		}
+		
+		var cmpObstruction = Engine.QueryInterface(ent, IID_Obstruction);
+		if (!cmpObstruction)
 		{
 			error("[SetWallPlacementPreview] Preview entity of template '" + tpl + "' does not have an Obstruction component");
-			continue;
-		}
-
-		// Assign any predefined control groups. Note that there can only be 0, 1 or 2 predefined control groups; if there are
-		// more, we've made a programming error. The control groups are assigned from the entInfo.controlGroups array on a
-		// first-come first-served basis; the first value in the array is always assigned as the primary control group, and
-		// any second value as the secondary control group.
-
-		// By default, we reset the control groups to their standard values. Remember that we're reusing entities; if we don't
-		// reset them, then an ending wall segment that was e.g. at one point snapped to an existing tower, and is subsequently
-		// reused as a non-snapped ending wall segment, would no longer be capable of being obstructed by the same tower it was
-		// once snapped to.
-
-		var primaryControlGroup = ent;
-		var secondaryControlGroup = INVALID_ENTITY;
-
-		if (entInfo.controlGroups && entInfo.controlGroups.length > 0)
-		{
+			continue;
+		}
+		
+		// Assign any predefined control groups. Note that there can only be 0, 1 or 2 predefined control groups; if there are
+		// more, we've made a programming error. The control groups are assigned from the entInfo.controlGroups array on a
+		// first-come first-served basis; the first value in the array is always assigned as the primary control group, and
+		// any second value as the secondary control group.
+		
+		// By default, we reset the control groups to their standard values. Remember that we're reusing entities; if we don't
+		// reset them, then an ending wall segment that was e.g. at one point snapped to an existing tower, and is subsequently
+		// reused as a non-snapped ending wall segment, would no longer be capable of being obstructed by the same tower it was
+		// once snapped to.
+		
+		var primaryControlGroup = ent;
+		var secondaryControlGroup = INVALID_ENTITY;
+		
+		if (entInfo.controlGroups && entInfo.controlGroups.length > 0)
+		{
 			if (entInfo.controlGroups.length > 2)
 			{
 				error("[SetWallPlacementPreview] Encountered preview entity of template '" + tpl + "' with more than 2 initial control groups");
-				break;
-			}
-
-			primaryControlGroup = entInfo.controlGroups[0];
-			if (entInfo.controlGroups.length > 1)
-				secondaryControlGroup = entInfo.controlGroups[1];
-		}
-
-		cmpObstruction.SetControlGroup(primaryControlGroup);
-		cmpObstruction.SetControlGroup2(secondaryControlGroup);
-
-		// check whether this wall piece can be validly positioned here
-		var validPlacement = false;
-
-		var cmpOwnership = Engine.QueryInterface(ent, IID_Ownership);
-		cmpOwnership.SetOwner(player);
-
-		// Check whether it's in a visible or fogged region
-		//  tell GetLosVisibility to force RetainInFog because preview entities set this to false,
+				break;
+			}
+			
+			primaryControlGroup = entInfo.controlGroups[0];
+			if (entInfo.controlGroups.length > 1)
+				secondaryControlGroup = entInfo.controlGroups[1];
+		}
+		
+		cmpObstruction.SetControlGroup(primaryControlGroup);
+		cmpObstruction.SetControlGroup2(secondaryControlGroup);
+		
+		// check whether this wall piece can be validly positioned here
+		var validPlacement = false;
+		
+		var cmpOwnership = Engine.QueryInterface(ent, IID_Ownership);
+		cmpOwnership.SetOwner(player);
+		
+		// Check whether it's in a visible or fogged region
+		//  tell GetLosVisibility to force RetainInFog because preview entities set this to false,
 		//	which would show them as hidden instead of fogged
 		// TODO: should definitely reuse SetBuildingPlacementPreview, this is just straight up copy/pasta
 		var visible = (cmpRangeManager.GetLosVisibility(ent, player, true) != "hidden");
@@ -1380,11 +1377,11 @@ GuiInterface.prototype.SetWallPlacementPreview = function(player, cmd)
 			if (!cmpBuildRestrictions)
 			{
 				error("[SetWallPlacementPreview] cmpBuildRestrictions not defined for preview entity of template '" + tpl + "'");
-				continue;
-			}
-
-			// TODO: Handle results of CheckPlacement
-			validPlacement = (cmpBuildRestrictions && cmpBuildRestrictions.CheckPlacement().success);
+				continue;
+			}
+			
+			// TODO: Handle results of CheckPlacement
+			validPlacement = (cmpBuildRestrictions && cmpBuildRestrictions.CheckPlacement().success);
 
 			// If a wall piece has two control groups, it's likely a segment that spans
 			// between two existing towers. To avoid placing a duplicate wall segment,
@@ -1392,32 +1389,32 @@ GuiInterface.prototype.SetWallPlacementPreview = function(player, cmd)
 			if (validPlacement && entInfo.controlGroups && entInfo.controlGroups.length > 1)
 				validPlacement = cmpObstruction.CheckDuplicateFoundation();
 		}
-
-		allPiecesValid = allPiecesValid && validPlacement;
-
-		// The requirement below that all pieces so far have to have valid positions, rather than only this single one,
-		// ensures that no more foundations will be placed after a first invalidly-positioned piece. (It is possible
-		// for pieces past some invalidly-positioned ones to still have valid positions, e.g. if you drag a wall
-		// through and past an existing building).
-
-		// Additionally, the excludeFromResult flag is set for preview entities that were manually added to be placed
-		// on top of foundations of incompleted towers that we snapped to; they must not be part of the result.
-
-		if (!entInfo.excludeFromResult)
-			numRequiredPieces++;
-
-		if (allPiecesValid && !entInfo.excludeFromResult)
-		{
+
+		allPiecesValid = allPiecesValid && validPlacement;
+		
+		// The requirement below that all pieces so far have to have valid positions, rather than only this single one,
+		// ensures that no more foundations will be placed after a first invalidly-positioned piece. (It is possible
+		// for pieces past some invalidly-positioned ones to still have valid positions, e.g. if you drag a wall 
+		// through and past an existing building).
+		
+		// Additionally, the excludeFromResult flag is set for preview entities that were manually added to be placed
+		// on top of foundations of incompleted towers that we snapped to; they must not be part of the result.
+		
+		if (!entInfo.excludeFromResult)
+			numRequiredPieces++;
+		
+		if (allPiecesValid && !entInfo.excludeFromResult)
+		{
 			result.pieces.push({
 				"template": tpl,
 				"x": entInfo.pos.x,
 				"z": entInfo.pos.z,
 				"angle": entInfo.angle,
-			});
-			this.placementWallLastAngle = entInfo.angle;
-
-			// grab the cost of this wall piece and add it up (note; preview entities don't have their Cost components
-			// copied over, so we need to fetch it from the template instead).
+			});
+			this.placementWallLastAngle = entInfo.angle;
+			
+			// grab the cost of this wall piece and add it up (note; preview entities don't have their Cost components
+			// copied over, so we need to fetch it from the template instead).
 			// TODO: we should really use a Cost object or at least some utility functions for this, this is mindless
 			// boilerplate that's probably duplicated in tons of places.
 			result.cost.food += tplData.cost.food;
@@ -1443,31 +1440,31 @@ GuiInterface.prototype.SetWallPlacementPreview = function(player, cmd)
 				cmpVisual.SetShadingColour(1, 1, 1, 1);
 		}
 
-		entPool.numUsed++;
-	}
-
-	// If any were entities required to build the wall, but none of them could be validly positioned, return failure
-	// (see method-level documentation).
-	if (numRequiredPieces > 0 && result.pieces.length == 0)
-		return false;
-
-	if (start.snappedEnt && start.snappedEnt != INVALID_ENTITY)
-		result.startSnappedEnt = start.snappedEnt;
-
-	// We should only return that we snapped to an entity if all pieces up until that entity can be validly constructed,
-	// i.e. are included in result.pieces (see docs for the result object).
-	if (end.pos && end.snappedEnt && end.snappedEnt != INVALID_ENTITY && allPiecesValid)
-		result.endSnappedEnt = end.snappedEnt;
-
-	return result;
-};
+		entPool.numUsed++;
+	}
+	
+	// If any were entities required to build the wall, but none of them could be validly positioned, return failure
+	// (see method-level documentation).
+	if (numRequiredPieces > 0 && result.pieces.length == 0)
+		return false;
+	
+	if (start.snappedEnt && start.snappedEnt != INVALID_ENTITY)
+		result.startSnappedEnt = start.snappedEnt;
+	
+	// We should only return that we snapped to an entity if all pieces up until that entity can be validly constructed,
+	// i.e. are included in result.pieces (see docs for the result object).
+	if (end.pos && end.snappedEnt && end.snappedEnt != INVALID_ENTITY && allPiecesValid)
+		result.endSnappedEnt = end.snappedEnt;
+	
+	return result;
+};
 
 /**
- * Given the current position {data.x, data.z} of an foundation of template data.template, returns the position and angle to snap
- * it to (if necessary/useful).
- *
- * @param data.x            The X position of the foundation to snap.
- * @param data.z            The Z position of the foundation to snap.
+ * Given the current position {data.x, data.z} of an foundation of template data.template, returns the position and angle to snap
+ * it to (if necessary/useful).
+ * 
+ * @param data.x            The X position of the foundation to snap.
+ * @param data.z            The Z position of the foundation to snap.
  * @param data.template     The template to get the foundation snapping data for.
  * @param data.snapEntities Optional; list of entity IDs to snap to if {data.x, data.z} is within a circle of radius data.snapRadius
  *                            around the entity. Only takes effect when used in conjunction with data.snapRadius.
@@ -1485,63 +1482,63 @@ GuiInterface.prototype.GetFoundationSnapData = function(player, data)
 	if (!template)
 	{
 		warn("[GetFoundationSnapData] Failed to load template '" + data.template + "'");
-		return false;
-	}
-
-	if (data.snapEntities && data.snapRadius && data.snapRadius > 0)
-	{
-		// see if {data.x, data.z} is inside the snap radius of any of the snap entities; and if so, to which it is closest
-		// (TODO: break unlikely ties by choosing the lowest entity ID)
-
-		var minDist2 = -1;
-		var minDistEntitySnapData = null;
-		var radius2 = data.snapRadius * data.snapRadius;
-
-		for each (var ent in data.snapEntities)
-		{
+		return false;
+	}
+	
+	if (data.snapEntities && data.snapRadius && data.snapRadius > 0)
+	{
+		// see if {data.x, data.z} is inside the snap radius of any of the snap entities; and if so, to which it is closest
+		// (TODO: break unlikely ties by choosing the lowest entity ID)
+		
+		var minDist2 = -1;
+		var minDistEntitySnapData = null;
+		var radius2 = data.snapRadius * data.snapRadius;
+		
+		for each (var ent in data.snapEntities)
+		{
 			var cmpPosition = Engine.QueryInterface(ent, IID_Position);
-			if (!cmpPosition || !cmpPosition.IsInWorld())
-				continue;
-
-			var pos = cmpPosition.GetPosition();
-			var dist2 = (data.x - pos.x) * (data.x - pos.x) + (data.z - pos.z) * (data.z - pos.z);
-			if (dist2 > radius2)
-				continue;
-
-			if (minDist2 < 0 || dist2 < minDist2)
-			{
+			if (!cmpPosition || !cmpPosition.IsInWorld())
+				continue;
+			
+			var pos = cmpPosition.GetPosition();
+			var dist2 = (data.x - pos.x) * (data.x - pos.x) + (data.z - pos.z) * (data.z - pos.z);
+			if (dist2 > radius2)
+				continue;
+			
+			if (minDist2 < 0 || dist2 < minDist2)
+			{
 				minDist2 = dist2;
 				minDistEntitySnapData = {"x": pos.x, "z": pos.z, "angle": cmpPosition.GetRotation().y, "ent": ent};
-			}
-		}
-
-		if (minDistEntitySnapData != null)
-			return minDistEntitySnapData;
-	}
-
-	if (template.BuildRestrictions.Category == "Dock")
-	{
+			}
+		}
+		
+		if (minDistEntitySnapData != null)
+			return minDistEntitySnapData;
+	}
+	
+	if (template.BuildRestrictions.Category == "Dock")
+	{
 		// warning: copied almost identically in helpers/command.js , "GetDockAngle".
 		var cmpTerrain = Engine.QueryInterface(SYSTEM_ENTITY, IID_Terrain);
 		var cmpWaterManager = Engine.QueryInterface(SYSTEM_ENTITY, IID_WaterManager);
 		if (!cmpTerrain || !cmpWaterManager)
 		{
-			return false;
-		}
-
-		// Get footprint size
-		var halfSize = 0;
+			return false;
+		}
+		
+		// Get footprint size
+		var halfSize = 0;
 		if (template.Footprint.Square)
 		{
 			halfSize = Math.max(template.Footprint.Square["@depth"], template.Footprint.Square["@width"])/2;
 		}
 		else if (template.Footprint.Circle)
 		{
-			halfSize = template.Footprint.Circle["@radius"];
-		}
-
-		/* Find direction of most open water, algorithm:
-		 *	1. Pick points in a circle around dock
+			halfSize = template.Footprint.Circle["@radius"];
+		}
+		
+		/* Find direction of most open water, algorithm:
+		 *	1. Pick points in a circle around dock
 		 *	2. If point is in water, add to array
 		 *	3. Scan array looking for consecutive points
 		 *	4. Find longest sequence of consecutive points
@@ -1557,11 +1554,11 @@ GuiInterface.prototype.GetFoundationSnapData = function(player, data)
 			{
 				var angle = (i/numPoints)*2*Math.PI;
 				var d = halfSize*(dist+1);
-				var nx = data.x - d*Math.sin(angle);
-				var nz = data.z + d*Math.cos(angle);
-
-				if (cmpTerrain.GetGroundLevel(nx, nz) < cmpWaterManager.GetWaterLevel(nx, nz))
-				{
+				var nx = data.x - d*Math.sin(angle);
+				var nz = data.z + d*Math.cos(angle);
+				
+				if (cmpTerrain.GetGroundLevel(nx, nz) < cmpWaterManager.GetWaterLevel(nx, nz))
+				{
 					waterPoints.push(i);
 				}
 			}
@@ -1591,11 +1588,11 @@ GuiInterface.prototype.GetFoundationSnapData = function(player, data)
 				{
 					start = c;
 					count = consec[c];
-				}
-			}
-
-			// If we've found a shoreline, stop searching
-			if (count != numPoints-1)
+				}
+			}
+			
+			// If we've found a shoreline, stop searching
+			if (count != numPoints-1)
 			{
 				return {"x": data.x, "z": data.z, "angle": -(((waterPoints[start] + consec[start]/2) % numPoints)/numPoints*2*Math.PI)};
 			}
@@ -1616,11 +1613,11 @@ GuiInterface.prototype.PlaySound = function(player, data)
 
 function isIdleUnit(ent, idleClass)
 {
-	var cmpUnitAI = Engine.QueryInterface(ent, IID_UnitAI);
-	var cmpIdentity = Engine.QueryInterface(ent, IID_Identity);
-
-	// TODO: Do something with garrisoned idle units
-	return (cmpUnitAI && cmpIdentity && cmpUnitAI.IsIdle() && !cmpUnitAI.IsGarrisoned() && idleClass && cmpIdentity.HasClass(idleClass));
+	var cmpUnitAI = Engine.QueryInterface(ent, IID_UnitAI);
+	var cmpIdentity = Engine.QueryInterface(ent, IID_Identity);
+	
+	// TODO: Do something with garrisoned idle units
+	return (cmpUnitAI && cmpIdentity && cmpUnitAI.IsIdle() && !cmpUnitAI.IsGarrisoned() && idleClass && cmpIdentity.HasClass(idleClass));
 }
 
 GuiInterface.prototype.FindIdleUnits = function(player, data)
@@ -1768,11 +1765,11 @@ GuiInterface.prototype.OnGlobalEntityRenamed = function(msg)
 // (GUI scripts are non-deterministic and untrusted, so these functions must be
 // appropriately careful. They are called with a first argument "player", which is
 // trusted and indicates the player associated with the current client; no data should
-// be returned unless this player is meant to be able to see it.)
-var exposedFunctions = {
-
-	"GetSimulationState": 1,
-	"GetExtendedSimulationState": 1,
+// be returned unless this player is meant to be able to see it.)
+var exposedFunctions = {
+	
+	"GetSimulationState": 1,
+	"GetExtendedSimulationState": 1,
 	"GetRenamedEntities": 1,
 	"ClearRenamedEntities": 1,
 	"GetEntityState": 1,
diff --git a/binaries/data/mods/public/simulation/components/ResourceSupply.js b/binaries/data/mods/public/simulation/components/ResourceSupply.js
index e3677ab6c5..e0686d162c 100644
--- a/binaries/data/mods/public/simulation/components/ResourceSupply.js
+++ b/binaries/data/mods/public/simulation/components/ResourceSupply.js
@@ -28,33 +28,10 @@ ResourceSupply.prototype.Schema =
 			"<value>treasure.stone</value>" +
 			"<value>treasure.metal</value>" +
 			"<value>treasure.food</value>" +
-		"</choice>" +
-	"</element>" +
-	"<optional>" +
-		"<element name='Regeneration' a:help='Controls whether this resource can regenerate its remaining amount.'>" +
-			"<interleave>" +
-				"<element name='Rate' a:help='Optional regeneration rate. Resources/second if the growth is linear or the rate of quadratic growth if the growth is quadratic.'>" +
-					"<ref name='nonNegativeDecimal'/>" +
-				"</element>" +
-				"<optional>" +
-					"<element name='Acceleration' a:help='Controls the curve the regeneration rate will follow for quadratic growth; does nothing for linear growth.'>" +
-						"<ref name='nonNegativeDecimal'/>" +
-					"</element>" +
-				"</optional>" +
-				"<element name='Delay' a:help='Seconds between when the number of gatherers hit 0 and the resource starts regenerating.'>" +
-					"<data type='nonNegativeInteger'/>" +
-				"</element>" +
-				"<element name='Growth' a:help='Growth formula for regeneration. Either linear or quadratic. Linear continues at a steady rate, while quadratic gets faster over time.'>" +
-					"<choice>" +
-						"<value>linear</value>" +
-						"<value>quadratic</value>" +
-					"</choice>" +
-				"</element>" +
-			"</interleave>" +
-		"</element>" +
-	"</optional>" +
-	"<element name='MaxGatherers' a:help='Amount of gatherers who can gather resources from this entity at the same time'>" +
-		"<data type='nonNegativeInteger'/>" +
+		"</choice>" +
+	"</element>" +
+	"<element name='MaxGatherers' a:help='Amount of gatherers who can gather resources from this entity at the same time'>" +
+		"<data type='nonNegativeInteger'/>" +
 	"</element>" +
 	"<optional>" +
 		"<element name='DiminishingReturns' a:help='The rate at which adding more gatherers decreases overall efficiency. Lower numbers = faster dropoff. Leave the element out for no diminishing returns.'>" +
@@ -66,18 +43,10 @@ ResourceSupply.prototype.Init = function()
 {
 	// Current resource amount (non-negative)
 	this.amount = this.GetMaxAmount();
-    this.gatherers = [];	// list of IDs
-    this.infinite = !isFinite(+this.template.Amount);
-	if (this.template.Regeneration) {
-		this.regenRate = +this.template.Regeneration.Rate;
-		if (this.template.Regeneration.Acceleration)
-			this.regenAccel = +this.template.Regeneration.Acceleration;
-		this.regenDelay = +this.template.Regeneration.Delay;
-	}
-	if (this.IsRegenerative())
-		this.RegenerateResources();
-};
-
+    this.gatherers = [];	// list of IDs
+    this.infinite = !isFinite(+this.template.Amount);
+};
+
 ResourceSupply.prototype.IsInfinite = function()
 {
 	return this.infinite;
@@ -125,53 +94,16 @@ ResourceSupply.prototype.TakeResources = function(rate)
 	var old = this.amount;
 	this.amount = Math.max(0, old - rate);
 	var change = old - this.amount;
-
-	// Remove entities that have been exhausted
-	if (this.amount == 0 && !this.IsRegenerative())
-		Engine.DestroyEntity(this.entity);
-
-	Engine.PostMessage(this.entity, MT_ResourceSupplyChanged, { "from": old, "to": this.amount });
-
-	return { "amount": change, "exhausted": this.amount == 0 };
-};
-
-ResourceSupply.prototype.RegenerateResources = function(data, lateness)
-{
-	var max = this.GetMaxAmount();
-	if (this.gatherers.length == 0 && !this.regenDelayTimer && this.amount < max)
-	{
-		var old = this.amount;
-		if (this.regenGrowth == "linear")
-			this.amount = Math.min(max, this.amount + data.rate);
-		else
-			this.amount = Math.min(max, this.amount + Math.max(1, data.rate * max * (data.acceleration * this.amount / max -Math.pow(this.amount / max, 2)) / 100));
-		Engine.PostMessage(this.entity, MT_ResourceSupplyChanged, { "from": old, "to": this.amount });
-	}
-	var cmpTimer = Engine.QueryInterface(SYSTEM_ENTITY, IID_Timer);
-	var regenRate = this.GetRegenerationRate();
-	var absRegen = Math.abs(regenRate);
-	if (Math.floor(regenRate) == regenRate || this.regenGrowth == "quadratic")
-		cmpTimer.SetTimeout(this.entity, IID_ResourceSupply, "RegenerateResources", 1000, { "rate": regenRate, "acceleration": this.GetRegenerationAcceleration() });
-	else
-		cmpTimer.SetTimeout(this.entity, IID_ResourceSupply, "RegenerateResources", 1000 / absRegen,
-				{ "rate": absRegen == regenRate ? 1 : -1 });
-};
-
-ResourceSupply.prototype.StartRegenerationDelayTimer = function()
-{
-	if (!this.regenDelayTimer) {
-		var cmpTimer = Engine.QueryInterface(SYSTEM_ENTITY, IID_Timer);
-		this.regenDelayTimer = cmpTimer.SetTimeout(this.entity, IID_ResourceSupply, "CancelRegenerationDelayTimer", this.GetRegenerationDelay() * 1000, null);
-	}
-};
-
-ResourceSupply.prototype.CancelRegenerationDelayTimer = function()
-{
-	var cmpTimer = Engine.QueryInterface(SYSTEM_ENTITY, IID_Timer);
-	cmpTimer.CancelTimer(this.regenDelayTimer);
-	this.regenDelayTimer = null;
-};
-
+
+	// Remove entities that have been exhausted
+	if (this.amount == 0)
+		Engine.DestroyEntity(this.entity);
+
+	Engine.PostMessage(this.entity, MT_ResourceSupplyChanged, { "from": old, "to": this.amount });
+
+	return { "amount": change, "exhausted": (this.amount == 0) };
+};
+
 ResourceSupply.prototype.GetType = function()
 {
 	// All resources must have both type and subtype
@@ -185,54 +117,22 @@ ResourceSupply.prototype.IsAvailable = function(gathererID)
 	if (this.gatherers.length < this.GetMaxGatherers() || this.gatherers.indexOf(gathererID) !== -1)
 		return true;
 	return false;
-};
-
-ResourceSupply.prototype.IsRegenerative = function()
-{
-	return this.GetRegenerationRate() != 0;
-};
-
-ResourceSupply.prototype.GetTerritoryOwner = function ()
-{
-	var cmpPlayerManager = Engine.QueryInterface(SYSTEM_ENTITY, IID_PlayerManager);
-	var cmpTerritoryManager = Engine.QueryInterface(SYSTEM_ENTITY, IID_TerritoryManager);
-	var cmpPosition = Engine.QueryInterface(this.entity, IID_Position);
-	if (!(cmpPosition && cmpPosition.IsInWorld()))
-		return 0;  // Something's wrong, just say we're in neutral territory.
-	var pos = cmpPosition.GetPosition2D();
-	return cmpPlayerManager.GetPlayerByID(cmpTerritoryManager.GetOwner(pos.x, pos.y));
-};
-
-ResourceSupply.prototype.GetRegenerationRate = function()
-{
-	return ApplyTechModificationsToPlayer("ResourceSupply/Regeneration/Rate", this.regenRate, this.GetTerritoryOwner());
-};
-
-ResourceSupply.prototype.GetRegenerationAcceleration = function()
-{
-	return ApplyTechModificationsToPlayer("ResourceSupply/Regeneration/Acceleration", this.regenAccel, this.GetTerritoryOwner());
-};
-
-ResourceSupply.prototype.GetRegenerationDelay = function()
-{
-	return ApplyTechModificationsToPlayer("ResourcesSupply/Regeneration/Delay", this.regenDelay, this.GetTerritoryOwner());
-};
-
-ResourceSupply.prototype.AddGatherer = function(gathererID)
-{
-	if (!this.IsAvailable(gathererID))
-		return false;
-
-	if (this.gatherers.indexOf(gathererID) === -1)
-	{
-		this.gatherers.push(gathererID);
-		this.CancelRegenerationDelayTimer();
-		// broadcast message, mainly useful for the AIs.
-		Engine.PostMessage(this.entity, MT_ResourceSupplyGatherersChanged, { "to": this.gatherers });
-	}
-
-	return true;
-};
+};
+
+ResourceSupply.prototype.AddGatherer = function(gathererID)
+{
+	if (!this.IsAvailable(gathererID))
+		return false;
+ 	
+	if (this.gatherers.indexOf(gathererID) === -1)
+	{
+		this.gatherers.push(gathererID);
+		// broadcast message, mainly useful for the AIs.
+		Engine.PostMessage(this.entity, MT_ResourceSupplyGatherersChanged, { "to": this.gatherers });
+	}
+	
+	return true;
+};
 
 // should this return false if the gatherer didn't gather from said resource?
 ResourceSupply.prototype.RemoveGatherer = function(gathererID)
@@ -241,10 +141,8 @@ ResourceSupply.prototype.RemoveGatherer = function(gathererID)
 	{
 		this.gatherers.splice(this.gatherers.indexOf(gathererID),1);
 		// broadcast message, mainly useful for the AIs.
-		Engine.PostMessage(this.entity, MT_ResourceSupplyGatherersChanged, { "to": this.gatherers });
-	}
-	if (this.gatherers.length == 0)
-		this.StartRegenerationDelayTimer();
-};
-
+		Engine.PostMessage(this.entity, MT_ResourceSupplyGatherersChanged, { "to": this.gatherers });
+	}
+};
+
 Engine.RegisterComponentType(IID_ResourceSupply, "ResourceSupply", ResourceSupply);
diff --git a/binaries/data/mods/public/simulation/components/StatisticsTracker.js b/binaries/data/mods/public/simulation/components/StatisticsTracker.js
index 5ccb40034c..ab87560e93 100644
--- a/binaries/data/mods/public/simulation/components/StatisticsTracker.js
+++ b/binaries/data/mods/public/simulation/components/StatisticsTracker.js
@@ -98,10 +98,7 @@ StatisticsTracker.prototype.KilledEntity = function(targetEntity)
 {
 	var cmpTargetEntityIdentity = Engine.QueryInterface(targetEntity, IID_Identity);
 	var cmpCost = Engine.QueryInterface(targetEntity, IID_Cost);
-    if (cmpCost)
-        var costs = cmpCost.GetResourceCosts();
-    else
-        var costs = { "food": 0, "wood": 0, "stone": 0, "metal": 0 };
+	var costs = cmpCost.GetResourceCosts();
 	if (cmpTargetEntityIdentity)
 	{
 		var cmpFoundation = Engine.QueryInterface(targetEntity, IID_Foundation);
@@ -113,7 +110,7 @@ StatisticsTracker.prototype.KilledEntity = function(targetEntity)
 		var targetIsCivCentre = cmpTargetEntityIdentity.HasClass("CivCentre");
 
 		var cmpTargetOwnership = Engine.QueryInterface(targetEntity, IID_Ownership);
-
+	    
 		// Don't increase counters if target player is gaia (player 0)
 		if (cmpTargetOwnership.GetOwner() != 0)
 		{
@@ -124,7 +121,7 @@ StatisticsTracker.prototype.KilledEntity = function(targetEntity)
 				{
 					this.enemyUnitsKilledValue += costs[r];
 				}
-			}
+			}	
 			if (targetIsStructure)
 			{
 				this.enemyBuildingsDestroyed++;
@@ -143,10 +140,7 @@ StatisticsTracker.prototype.LostEntity = function(lostEntity)
 {
 	var cmpLostEntityIdentity = Engine.QueryInterface(lostEntity, IID_Identity);
 	var cmpCost = Engine.QueryInterface(lostEntity, IID_Cost);
-    if (cmpCost)
-        var costs = cmpCost.GetResourceCosts();
-    else
-        var costs = { "food": 0, "wood": 0, "stone": 0, "metal": 0 };
+	var costs = cmpCost.GetResourceCosts();
 	if (cmpLostEntityIdentity)
 	{
 		var cmpFoundation = Engine.QueryInterface(lostEntity, IID_Foundation);
@@ -162,8 +156,8 @@ StatisticsTracker.prototype.LostEntity = function(lostEntity)
 			for (var r in costs)
 			{
 				this.unitsLostValue += costs[r];
-			}
-		}
+			}	
+		}	
 		if (lostEntityIsStructure)
 		{
 			this.buildingsLost++;
@@ -183,7 +177,7 @@ StatisticsTracker.prototype.LostEntity = function(lostEntity)
 StatisticsTracker.prototype.IncreaseResourceGatheredCounter = function(type, amount, specificType)
 {
 	this.resourcesGathered[type] += amount;
-
+	
 	if (type == "food" && (specificType == "fruit" || specificType == "grain"))
 		this.resourcesGathered["vegetarianFood"] += amount;
 };
diff --git a/binaries/data/mods/public/simulation/templates/gaia/flora_tree_apple.xml b/binaries/data/mods/public/simulation/templates/gaia/flora_tree_apple.xml
index 3997da45aa..93fe826cdb 100644
--- a/binaries/data/mods/public/simulation/templates/gaia/flora_tree_apple.xml
+++ b/binaries/data/mods/public/simulation/templates/gaia/flora_tree_apple.xml
@@ -10,13 +10,10 @@
     <Icon>gaia/flora_bush_berry.png</Icon>
   </Identity>
   <Obstruction>
-    <Unit radius="0.9"/>
-  </Obstruction>
-  <Health>
-    <Max>150</Max>
-  </Health>
-  <ResourceSupply>
-    <Amount>400</Amount>
+    <Unit radius="0.9"/>
+  </Obstruction>
+  <ResourceSupply>
+    <Amount>400</Amount>
     <Type>food.fruit</Type>
   </ResourceSupply>
   <VisualActor>
diff --git a/binaries/data/mods/public/simulation/templates/template_gaia_flora_bush_berry.xml b/binaries/data/mods/public/simulation/templates/template_gaia_flora_bush_berry.xml
index 7a431d3c45..4cf040fb7d 100644
--- a/binaries/data/mods/public/simulation/templates/template_gaia_flora_bush_berry.xml
+++ b/binaries/data/mods/public/simulation/templates/template_gaia_flora_bush_berry.xml
@@ -13,32 +13,15 @@
   </Identity>
   <Minimap>
     <Type>food</Type>
-    <Colour r="205" g="115" b="16"/>
-  </Minimap>
-  <Health>
-    <Max>100</Max>
-    <RegenRate>0</RegenRate>
-    <DeathType>vanish</DeathType>
-    <Unhealable>true</Unhealable>
-    <Repairable>false</Repairable>
-  </Health>
-  <Armour>
-      <Hack>1.0</Hack>
-      <Pierce>1.0</Pierce>
-      <Crush>1.0</Crush>
-  </Armour>
-  <ResourceSupply>
-    <KillBeforeGather>false</KillBeforeGather>
-    <Amount>200</Amount>
-    <Type>food.fruit</Type>
-    <MaxGatherers>8</MaxGatherers>
-    <Regeneration>
-      <Rate>3</Rate>
-      <Delay>10</Delay>
-      <Growth>linear</Growth>
-    </Regeneration>
-  </ResourceSupply>
-  <Selectable>
+    <Colour r="205" g="115" b="16"/>
+  </Minimap>
+  <ResourceSupply>
+    <KillBeforeGather>false</KillBeforeGather>
+    <Amount>200</Amount>
+    <Type>food.fruit</Type>
+	<MaxGatherers>8</MaxGatherers>
+  </ResourceSupply>
+  <Selectable>
     <EditorOnly disable=""/>
     <Overlay>
       <Texture>
diff --git a/binaries/data/mods/public/simulation/templates/template_unit_fauna_fish.xml b/binaries/data/mods/public/simulation/templates/template_unit_fauna_fish.xml
index 9719190443..995213aebf 100644
--- a/binaries/data/mods/public/simulation/templates/template_unit_fauna_fish.xml
+++ b/binaries/data/mods/public/simulation/templates/template_unit_fauna_fish.xml
@@ -20,17 +20,11 @@
   </Position>
   <ResourceSupply>
     <KillBeforeGather>false</KillBeforeGather>
-    <Amount>1000</Amount>
-    <Type>food.fish</Type>
-    <MaxGatherers>4</MaxGatherers>
-    <Regeneration>
-      <Rate>1</Rate>
-      <Acceleration>1.03</Acceleration>
-      <Delay>5</Delay>
-      <Growth>quadratic</Growth>
-    </Regeneration>
-  </ResourceSupply>
-  <Selectable>
+    <Amount>1000</Amount>
+    <Type>food.fish</Type>
+	<MaxGatherers>4</MaxGatherers>
+  </ResourceSupply>
+  <Selectable>
     <Overlay>
 	  <Texture disable=""/>
       <Outline>
diff --git a/source/gui/CGUI.cpp b/source/gui/CGUI.cpp
index b93c749271..37403929a3 100644
--- a/source/gui/CGUI.cpp
+++ b/source/gui/CGUI.cpp
@@ -1775,15 +1775,6 @@ void CGUI::Xeromyces_ReadScrollBarStyle(XMBElement Element, CXeromyces* pFile)
 				scrollbar.m_MinimumBarSize = f;
 		}
 		else
-		if (attr_name == "maximum_bar_size")
-		{
-			float f;
-			if (!GUI<float>::ParseString(attr_value.FromUTF8(), f))
-				LOGERROR(L"GUI: Error parsing '%hs' (\"%hs\")", attr_name.c_str(), attr_value.c_str());
-			else
-				scrollbar.m_MaximumBarSize = f;
-		}
-		else
 		if (attr_name == "sprite_button_top")
 			scrollbar.m_SpriteButtonTop = attr_value;
 		else
diff --git a/source/gui/CGUIScrollBarVertical.cpp b/source/gui/CGUIScrollBarVertical.cpp
index d8a591c68b..f5f078bff1 100644
--- a/source/gui/CGUIScrollBarVertical.cpp
+++ b/source/gui/CGUIScrollBarVertical.cpp
@@ -22,6 +22,7 @@ IGUIScrollBar
 #include "precompiled.h"
 #include "GUI.h"
 #include "CGUIScrollBarVertical.h"
+
 #include "ps/CLogger.h"
 
 
@@ -38,22 +39,18 @@ void CGUIScrollBarVertical::SetPosFromMousePos(const CPos &mouse)
 	if (!GetStyle())
 		return;
 
-	/**
-	 * Calculate the position for the top of the item being scrolled
-	 */
-	m_Pos = m_PosWhenPressed + GetMaxPos() * (mouse.y - m_BarPressedAtPos.y) / (m_Length - GetStyle()->m_Width * 2 - m_BarSize);
+	m_Pos = (m_PosWhenPressed + m_ScrollRange*(mouse.y-m_BarPressedAtPos.y)/(m_Length-GetStyle()->m_Width*2));
 }
 
 void CGUIScrollBarVertical::Draw()
 {
 	if (!GetStyle())
 	{
-		LOGWARNING(L"Attempt to draw scrollbar without a style.");
+		// TODO Gee: Report in error log
 		return;
 	}
 
-	// Only draw the scrollbar if the GUI exists and there is something to scroll.
-	if (GetGUI() && GetMaxPos() != 1)
+	if (GetGUI())
 	{
 		CRect outline = GetOuterRect();
 
@@ -82,7 +79,7 @@ void CGUIScrollBarVertical::Draw()
 			}
 			else button_top = &GetStyle()->m_SpriteButtonTop;
 
-			// figure out what sprite to use for bottom button
+			// figure out what sprite to use for top button
 			if (m_ButtonPlusHovered)
 			{
 				if (m_ButtonPlusPressed)
@@ -114,10 +111,22 @@ void CGUIScrollBarVertical::Draw()
 		}
 
 		// Draw bar
-		GetGUI()->DrawSprite(GetStyle()->m_SpriteBarVertical,
-							 0,
-							 m_Z + 0.2f,
-							 GetBarRect());
+		/*if (m_BarPressed)
+			GetGUI()->DrawSprite(GUI<>::FallBackSprite(GetStyle()->m_SpriteBarVerticalPressed, GetStyle()->m_SpriteBarVertical),
+								 0,
+								 m_Z+0.2f,
+								 GetBarRect());
+		else
+		if (m_BarHovered)
+			GetGUI()->DrawSprite(GUI<>::FallBackSprite(GetStyle()->m_SpriteBarVerticalOver, GetStyle()->m_SpriteBarVertical),
+								 0,
+								 m_Z+0.2f,
+								 GetBarRect());
+		else*/
+			GetGUI()->DrawSprite(GetStyle()->m_SpriteBarVertical,
+								 0,
+								 m_Z+0.2f,
+								 GetBarRect());
 	}
 } 
 
@@ -132,19 +141,32 @@ CRect CGUIScrollBarVertical::GetBarRect() const
 	if (!GetStyle())
 		return ret;
 
-	// Get from where the scroll area begins to where it ends
-	float from = m_Y;
-	float to = m_Y + m_Length - m_BarSize;
+	float size;
+	float from, to;
 
+	// is edge buttons used?
 	if (m_UseEdgeButtons)
 	{
-		from += GetStyle()->m_Width;
-		to -= GetStyle()->m_Width;
+		size = (m_Length-GetStyle()->m_Width*2.f)*m_BarSize;
+		if (size < GetStyle()->m_MinimumBarSize)
+			size = GetStyle()->m_MinimumBarSize;
+
+		from = m_Y+GetStyle()->m_Width;
+		to = m_Y+m_Length-GetStyle()->m_Width-size;
+	}
+	else
+	{
+		size = m_Length*m_BarSize;
+		if (size < GetStyle()->m_MinimumBarSize)
+			size = GetStyle()->m_MinimumBarSize;
+
+		from = m_Y;
+		to = m_Y+m_Length-size;
 	}
 
 	// Setup rectangle
-	ret.top = from + (to - from) * (m_Pos / GetMaxPos());
-	ret.bottom = ret.top + m_BarSize;
+	ret.top = (from + (to-from)*(m_Pos/(std::max(1.f, m_ScrollRange - m_ScrollSpace))));
+	ret.bottom = ret.top+size;
 	ret.right = m_X + ((m_RightAligned)?(0.f):(GetStyle()->m_Width));
 	ret.left = ret.right - GetStyle()->m_Width;
 
diff --git a/source/gui/CGUIScrollBarVertical.h b/source/gui/CGUIScrollBarVertical.h
index 76dad8241e..49751a66b3 100644
--- a/source/gui/CGUIScrollBarVertical.h
+++ b/source/gui/CGUIScrollBarVertical.h
@@ -74,7 +74,7 @@ public:
 	virtual void HandleMessage(SGUIMessage &Message);
 
 	/**
-	 * Set m_Pos with g_mouse_x/y input, i.e. when dragging.
+	 * Set m_Pos with g_mouse_x/y input, i.e. when draggin.
 	 */
 	virtual void SetPosFromMousePos(const CPos &mouse);
 
diff --git a/source/gui/IGUIScrollBar.cpp b/source/gui/IGUIScrollBar.cpp
index a88410cbbe..4c7d489d27 100644
--- a/source/gui/IGUIScrollBar.cpp
+++ b/source/gui/IGUIScrollBar.cpp
@@ -21,8 +21,7 @@ IGUIScrollBar
 
 #include "precompiled.h"
 #include "GUI.h"
-#include "maths/MathUtil.h"
-#include "ps/CLogger.h"
+
 
 //-------------------------------------------------------------------
 //	IGUIScrollBar
@@ -31,7 +30,7 @@ IGUIScrollBar::IGUIScrollBar() : m_pStyle(NULL), m_pGUI(NULL),
 								 m_X(300.f), m_Y(300.f),
 								 m_ScrollRange(1.f), m_ScrollSpace(0.f), // MaxPos: not 0, due to division.
 								 m_Length(200.f), m_Width(20.f), 
-								 m_BarSize(0.f), m_Pos(0.f),
+								 m_BarSize(0.5f), m_Pos(0.f),
 								 m_UseEdgeButtons(true),
 								 m_ButtonPlusPressed(false),
 								 m_ButtonMinusPressed(false),
@@ -48,25 +47,7 @@ IGUIScrollBar::~IGUIScrollBar()
 
 void IGUIScrollBar::SetupBarSize()
 {
-	float min = GetStyle()->m_MinimumBarSize;
-	float max = GetStyle()->m_MaximumBarSize;
-	float length = m_Length;
-
-	// Check for edge buttons
-	if (m_UseEdgeButtons)
-		length -= GetStyle()->m_Width * 2.f;
-
-	// Check min and max are valid
-	if (min > length)
-	{
-		LOGWARNING(L"Minimum scrollbar size of %g is larger than the total scrollbar size of %g", min, length);
-		min = 0.f;
-	}
-	if (max < min)
-		max = length;
-
-	// Clamp size to not exceed a minimum or maximum.
-	m_BarSize = clamp(length * std::min((float)m_ScrollSpace / (float)m_ScrollRange, 1.f), min, max);
+	m_BarSize = std::min((float)m_ScrollSpace/(float)m_ScrollRange, 1.f);
 }
 
 const SGUIScrollBarStyle *IGUIScrollBar::GetStyle() const
@@ -91,8 +72,8 @@ void IGUIScrollBar::UpdatePosBoundaries()
 		m_ScrollRange < m_ScrollSpace) // <= scrolling not applicable
 		m_Pos = 0.f;
 	else
-	if (m_Pos > GetMaxPos())
-		m_Pos = GetMaxPos();
+	if (m_Pos > m_ScrollRange - m_ScrollSpace)
+		m_Pos = m_ScrollRange - m_ScrollSpace;
 }
 
 void IGUIScrollBar::HandleMessage(SGUIMessage &Message)
@@ -112,10 +93,12 @@ void IGUIScrollBar::HandleMessage(SGUIMessage &Message)
 				UpdatePosBoundaries();
 			}
 
+			CRect bar_rect = GetBarRect();
 			// check if components are being hovered
-			m_BarHovered = GetBarRect().PointInside(mouse);
-			m_ButtonMinusHovered = HoveringButtonMinus(mouse);
-			m_ButtonPlusHovered =  HoveringButtonPlus(mouse);
+			m_BarHovered = bar_rect.PointInside(mouse);
+
+			m_ButtonMinusHovered = HoveringButtonMinus(m_pHostObject->GetMousePos());
+			m_ButtonPlusHovered =  HoveringButtonPlus(m_pHostObject->GetMousePos());
 
 			if (!m_ButtonMinusHovered)
 				m_ButtonMinusPressed = false;
diff --git a/source/gui/IGUIScrollBar.h b/source/gui/IGUIScrollBar.h
index 45beefbcd8..a99a3f3810 100644
--- a/source/gui/IGUIScrollBar.h
+++ b/source/gui/IGUIScrollBar.h
@@ -90,13 +90,6 @@ struct SGUIScrollBarStyle
 	 */
 	float m_MinimumBarSize;
 
-	/**
-	 * Sometimes you would like your scroll bar to have a fixed maximum size
-	 * so that the texture does not get too stretched, you can set a maximum
-	 * in pixels.
-	 */
-	float m_MaximumBarSize;
-
 	//@}
 	//--------------------------------------------------------
 	/** @name Horizontal Sprites */
@@ -206,27 +199,27 @@ public:
 	virtual void SetPos(float f) { m_Pos = f; UpdatePosBoundaries(); }
 
 	/**
-	 * Get the value of m_Pos that corresponds to the bottom of the scrollable region
+	 * Get the value of Pos that corresponds to the bottom of the scrollable region
 	 */
-	float GetMaxPos() const { return std::max(1.f, m_ScrollRange - m_ScrollSpace); }
+	float GetMaxPos() const { return m_ScrollRange - m_ScrollSpace;	}
 
 	/**
-	 * Increase scroll one step
+	 * Scroll towards 1.0 one step
 	 */
 	virtual void ScrollPlus() { m_Pos += 30.f; UpdatePosBoundaries(); }
 
 	/**
-	 * Decrease scroll one step
+	 * Scroll towards 0.0 one step
 	 */
 	virtual void ScrollMinus() { m_Pos -= 30.f; UpdatePosBoundaries(); }
 
 	/**
-	 * Increase scroll three steps
+	 * Scroll towards 1.0 one step
 	 */
 	virtual void ScrollPlusPlenty() { m_Pos += 90.f; UpdatePosBoundaries(); }
 
 	/**
-	 * Decrease scroll three steps
+	 * Scroll towards 0.0 one step
 	 */
 	virtual void ScrollMinusPlenty() { m_Pos -= 90.f; UpdatePosBoundaries(); }