Add Fixture:getNext()

--HG--
branch : box2d-update

src/modules/physics/box2d/Fixture.cpp

@@ -133,6 +133,15 @@ namespace box2d
 	{
 		return shape;
 	}
+	
+	Fixture * Fixture::getNext() const
+	{
+		b2Fixture * f = fixture->GetNext();
+		if (!f) return NULL;
+		Fixture * fix = (Fixture *)Memoizer::find(f);
+		if (!fix) fix = new Fixture(f);
+		return fix;
+	}
 
 	void Fixture::setFilterData(int * v)
 	{

src/modules/physics/box2d/Fixture.h

@@ -106,6 +106,11 @@ namespace box2d
 		**/
 		Body * getBody() const;
 		
+		/**
+		* Gets the next Fixture attached to the parent Body.
+		**/
+		Fixture * getNext() const;
+		
 		/**
 		 * Sets the filter data. An integer array is used even though the
 		 * first two elements are unsigned shorts. The elements are:

src/modules/physics/box2d/wrap_Fixture.cpp

@@ -122,6 +122,16 @@ namespace box2d
 		luax_newtype(L, "Shape", PHYSICS_SHAPE_T, (void*)shape);
 		return 1;
 	}
+	
+	int w_Fixture_getNext(lua_State * L)
+	{
+		Fixture * t = luax_checkfixture(L, 1);
+		Fixture * f = t->getNext();
+		if (f == 0) return 0;
+		f->retain();
+		luax_newtype(L, "Fixture", PHYSICS_FIXTURE_T, (void*)f);
+		return 1;
+	}
 
 	int w_Fixture_testPoint(lua_State * L)
 	{
@@ -254,6 +264,7 @@ namespace box2d
 		{ "getDensity", w_Fixture_getDensity },
 		{ "getBody", w_Fixture_getBody },
 		{ "getShape", w_Fixture_getShape },
+		{ "getNext", w_Fixture_getNext },
 		{ "isSensor", w_Fixture_isSensor },
 		{ "testPoint", w_Fixture_testPoint },
 		{ "rayCast", w_Fixture_rayCast },

src/modules/physics/box2d/wrap_Fixture.h

@@ -43,6 +43,7 @@ namespace box2d
 	int w_Fixture_isSensor(lua_State * L);
 	int w_Fixture_getBody(lua_State * L);
 	int w_Fixture_getShape(lua_State * L);
+	int w_Fixture_getNext(lua_State * L);
 	int w_Fixture_testPoint(lua_State * L);
 	int w_Fixture_rayCast(lua_State * L);
 	int w_Fixture_setFilterData(lua_State * L);