petra: improve the way units capturing a structure react when attacked by enemy units + some code cleanup

This was SVN commit r20072.

binaries/data/mods/public/simulation/ai/common-api/terrain-analysis.js

@@ -251,7 +251,7 @@ m.Accessibility.prototype.floodFill = function(startIndex, value, onWater)
 		return false;
 	}
 
-	if ((!onWater && this.landPassMap[startIndex] !== 0) || (onWater && this.navalPassMap[startIndex] !== 0) )
+	if (!onWater && this.landPassMap[startIndex] !== 0 || onWater && this.navalPassMap[startIndex] !== 0 )
 		return false;	// already painted.
 
 	let floodFor = "land";

binaries/data/mods/public/simulation/ai/petra/attackPlan.js

@@ -1274,7 +1274,26 @@ m.AttackPlan.prototype.update = function(gameState, events)
 					}
 				}
 				else
-				{	// if units are attacked, abandon their target (if it was a structure or a support) and retaliate
+				{
+					// Look first for nearby units to help us if possible
+					let collec = this.unitCollection.filterNearest(ourUnit.position(), 2);
+					for (let ent of collec.values())
+					{
+						if (m.isSiegeUnit(ent))
+							continue;
+						let orderData = ent.unitAIOrderData();
+						if (orderData && orderData.length && orderData[0].target)
+						{
+							if (orderData[0].target === attacker.id())
+								continue;
+							let target = gameState.getEntityById(orderData[0].target);
+							if (target && !target.hasClass("Structure") && !target.hasClass("Support"))
+								continue;
+						}
+						ent.attack(attacker.id(),  m.allowCapture(gameState, ent, attacker));
+						ent.setMetadata(PlayerID, "lastAttackPlanUpdateTime", time);
+					}
+					// Then the unit under attack: abandon its target (if it was a structure or a support) and retaliate
 					// also if our unit is attacking a range unit and the attacker is a melee unit, retaliate
 					let orderData = ourUnit.unitAIOrderData();
 					if (orderData && orderData.length && orderData[0].target)

binaries/data/mods/public/simulation/ai/petra/headquarters.js

@@ -1444,8 +1444,6 @@ m.HQ.prototype.buildWonder = function(gameState, queues, force = false)
 			return;
 	}
 
-	if (this.Config.debug > 0)
-		API3.warn(" civ " + gameState.getPlayerCiv() + " starts a plan for Wonder");
 	queues.wonder.addPlan(new m.ConstructionPlan(gameState, "structures/{civ}_wonder"));
 };
 
@@ -2253,7 +2251,7 @@ m.HQ.prototype.updateCaptureStrength = function(gameState)
 			let orderData = ent.unitAIOrderData();
 			if (!orderData || !orderData.length || !orderData[0].attackType)
 				continue;
-			if ((orderData[0].attackType === "Capture") !== allowCapture)
+			if (orderData[0].attackType === "Capture" !== allowCapture)
 				ent.attack(targetId, allowCapture);
 		}
 	}

binaries/data/mods/public/simulation/ai/petra/tradeManager.js

@@ -55,8 +55,8 @@ m.TradeManager.prototype.trainMoreTraders = function(gameState, queues)
 		}
 	});
         if (numTraders >= this.targetNumTraders &&
-		((!this.tradeRoute.sea && numLandTraders >= Math.floor(this.targetNumTraders/2)) ||
-		  (this.tradeRoute.sea && numSeaTraders >= Math.floor(this.targetNumTraders/2))))
+		(!this.tradeRoute.sea && numLandTraders >= Math.floor(this.targetNumTraders/2) ||
+		  this.tradeRoute.sea && numSeaTraders >= Math.floor(this.targetNumTraders/2)))
 		return;
 
 	let template;
@@ -536,8 +536,8 @@ m.TradeManager.prototype.checkTrader = function(gameState, ent)
 	let possibleRoute = this.checkRoutes(gameState, access);
 	// Warning:  presentRoute is from metadata, so contains entity ids
 	if (!possibleRoute ||
-		(possibleRoute.source.id() != presentRoute.source && possibleRoute.source.id() != presentRoute.target) ||
-		(possibleRoute.target.id() != presentRoute.source && possibleRoute.target.id() != presentRoute.target))
+	    possibleRoute.source.id() != presentRoute.source && possibleRoute.source.id() != presentRoute.target ||
+	    possibleRoute.target.id() != presentRoute.source && possibleRoute.target.id() != presentRoute.target)
 	{
 		// Trader will be assigned in updateTrader
 		ent.setMetadata(PlayerID, "route", undefined);