static int l_physics_setShapeMass(lua_State* state) { l_physics_Shape* shape = (l_physics_Shape*)lua_touserdata(state, 1); float value = l_tools_toNumberOrError(state, 2); cpShapeSetMass(shape->shape, value); return 0; }
void cpShapeSetDensity(cpShape *shape, cpFloat density){ cpShapeSetMass(shape, density*shape->massInfo.area); }