added very crude little LuaDemo, to create physics objects using Lua scripts (very preliminary)

data/init_physics.lua

@@ -0,0 +1,70 @@
+-- Very basic Lua script to create some Bullet objects. 
+-- See also Demos3/AllBullet2Demos using Demos3/bullet2/LuaDemo
+
+--right now we cannot interleave adding instances of different shapes, they have to be added in-order
+--hence the two loops. this will be fixed soon
+
+world = createDefaultDynamicsWorld()
+
+cubeshape = createCubeShape(world, 30,1,30)
+pos={0,0,0}
+orn = {0,0,0,1}
+mass = 0
+body = createRigidBody(world,cubeshape,mass,pos,orn)
+
+shape = createCubeShape(world, 1,1,1)
+
+x=0
+z=0
+maxy = 10
+
+toggle=1
+
+for x=0,10 do
+	for y=0,10 do
+		if toggle==1 then
+			toggle = 0
+			for z=0,10 do
+				mass = 1
+				if (y==maxy) then
+					--mass=30;
+				end
+				pos = {-14+x*2,2+2*y,z*2}
+			
+				body = createRigidBody(world,shape,mass,pos,orn)
+				setBodyPosition(world,body,pos)
+				setBodyOrientation(world,body,orn)
+			end
+		else
+			toggle = 1
+			
+		end
+	end
+end
+
+toggle=1
+shape = createSphereShape(world, 1)
+
+for x=0,10 do
+	for y=0,20 do
+		if toggle==1 then
+			toggle = 0
+		else
+			toggle = 1
+			for z=0,10 do
+				mass = 1
+				if (y==maxy) then
+					--mass=30;
+				end
+			
+			
+
+				pos = {-14+x*2,2+2*y,z*2}
+			
+				body = createRigidBody(world,shape,mass,pos,orn)
+				setBodyPosition(world,body,pos)
+				setBodyOrientation(world,body,orn)
+			end
+		end
+	end
+end