# Support AI construction of buildings.

Pass terrain passability data to AI scripts.
Expand pathfinder passability data to 16 bits per tile, to allow more
classes.
Support 16-bit ints in serializer.
Partially support JS typed arrays.
Allow foundations to be placed on top of units (fixes #499).
Stop farms and fishes blocking movement (fixes #534).
Add obstruction flags to allow finer control over what they block.
Associate entity IDs with obstruction shapes, to allow finding colliding
entities.
Support moving to the edge of a target entity with inactive obstruction.
Support foundation entities in AI.
Support playing as non-hele civs.

This was SVN commit r8899.

source/simulation2/scripting/EngineScriptConversions.cpp

@@ -1,4 +1,4 @@
-/* Copyright (C) 2010 Wildfire Games.
+/* Copyright (C) 2011 Wildfire Games.
  * This file is part of 0 A.D.
  *
  * 0 A.D. is free software: you can redistribute it and/or modify
@@ -25,11 +25,16 @@
 #include "ps/CLogger.h"
 #include "ps/Overlay.h"
 #include "ps/utf16string.h"
+#include "simulation2/helpers/Grid.h"
 #include "simulation2/system/IComponent.h"
 #include "simulation2/system/ParamNode.h"
 
 #include "js/jsapi.h"
 
+#define signbit std::signbit
+#include "js/jstypedarray.h"
+#undef signbit
+
 template<> jsval ScriptInterface::ToJSVal<IComponent*>(JSContext* cx, IComponent* const& val)
 {
 	if (val == NULL)
@@ -207,3 +212,30 @@ template<> jsval ScriptInterface::ToJSVal<CFixedVector2D>(JSContext* cx, const C
 
 	return OBJECT_TO_JSVAL(obj);
 }
+
+template<> jsval ScriptInterface::ToJSVal<Grid<u16> >(JSContext* cx, const Grid<u16>& val)
+{
+	JSObject* obj = JS_NewObject(cx, NULL, NULL, NULL);
+	if (!obj)
+		return JSVAL_VOID;
+
+	size_t len = val.m_W * val.m_H;
+	JSObject *darray = js_CreateTypedArray(cx, js::TypedArray::TYPE_UINT16, len);
+	if (!darray)
+		return JSVAL_VOID;
+
+	js::TypedArray *tdest = js::TypedArray::fromJSObject(darray);
+	debug_assert(tdest->byteLength == len*sizeof(u16));
+
+	memcpy(tdest->data, val.m_Data, tdest->byteLength);
+
+	jsval w = ToJSVal(cx, val.m_W);
+	jsval h = ToJSVal(cx, val.m_H);
+	jsval data = OBJECT_TO_JSVAL(darray);
+
+	JS_SetProperty(cx, obj, "width", &w);
+	JS_SetProperty(cx, obj, "height", &h);
+	JS_SetProperty(cx, obj, "data", &data);
+
+	return OBJECT_TO_JSVAL(obj);
+}