Update Lua Camera bindings

engine/lua/LuaCamera.cpp

@@ -106,9 +106,10 @@ CE_EXPORT int camera_set_local_position(lua_State* L)
 	LuaStack stack(L);
 
 	Camera* camera = stack.get_camera(1);
-	const Vector3 pos = stack.get_vector3(2);
+	Unit* unit = stack.get_unit(2);
+	const Vector3 pos = stack.get_vector3(3);
 
-	camera->set_local_position(pos);
+	camera->set_local_position(unit, pos);
 	return 0;
 }
 
@@ -118,9 +119,10 @@ CE_EXPORT int camera_set_local_rotation(lua_State* L)
 	LuaStack stack(L);
 
 	Camera* camera = stack.get_camera(1);
-	const Quaternion rot = stack.get_quaternion(2);
+	Unit* unit = stack.get_unit(2);
+	const Quaternion rot = stack.get_quaternion(3);
 
-	camera->set_local_rotation(rot);
+	camera->set_local_rotation(unit, rot);
 	return 0;
 }
 
@@ -130,9 +132,10 @@ CE_EXPORT int camera_set_local_pose(lua_State* L)
 	LuaStack stack(L);
 
 	Camera* camera = stack.get_camera(1);
-	const Matrix4x4 pose = stack.get_matrix4x4(2);
+	Unit* unit = stack.get_unit(2);
+	const Matrix4x4 pose = stack.get_matrix4x4(3);
 
-	camera->set_local_pose(pose);
+	camera->set_local_pose(unit, pose);
 	return 0;
 }
 
@@ -251,18 +254,60 @@ CE_EXPORT int camera_set_far_clip_distance(lua_State* L)
 	return 0;
 }
 
+//-----------------------------------------------------------------------------
 CE_EXPORT int camera_set_orthographic_metrics(lua_State* L)
 {
 	LuaStack stack(L);
 
 	Camera* camera = stack.get_camera(1);
-	const uint16_t width = stack.get_int(2);
-	const uint16_t height = stack.get_int(3);
+	const float left = stack.get_float(2);
+	const float right = stack.get_float(3);
+	const float bottom = stack.get_float(4);
+	const float top = stack.get_float(5);
 
-	camera->set_orthographic_metrics(width, height);
+	camera->set_orthographic_metrics(left, right, bottom, top);
 	return 0;
 }
 
+//-----------------------------------------------------------------------------
+CE_EXPORT int camera_set_viewport_metrics(lua_State* L)
+{
+	LuaStack stack(L);
+
+	Camera* camera = stack.get_camera(1);
+	const int16_t x = stack.get_int(2);
+	const int16_t y = stack.get_int(3);
+	const int16_t width = stack.get_int(4);
+	const int16_t height = stack.get_int(5);
+
+	camera->set_viewport_metrics(x, y, width, height);
+	return 0;	
+}
+
+//-----------------------------------------------------------------------------
+CE_EXPORT int camera_screen_to_world(lua_State* L)
+{
+	LuaStack stack(L);
+
+	Camera* camera = stack.get_camera(1);
+	const Vector3 pos = stack.get_vector3(2);
+
+	stack.push_vector3(camera->screen_to_world(pos));
+	return 1;
+}
+
+//-----------------------------------------------------------------------------
+CE_EXPORT int camera_world_to_screen(lua_State* L)
+{
+	LuaStack stack(L);
+
+	Camera* camera = stack.get_camera(1);
+	const Vector3 pos = stack.get_vector3(2);
+
+	stack.push_vector3(camera->world_to_screen(pos));
+	return 1;
+}
+
 //-----------------------------------------------------------------------------
 void load_camera(LuaEnvironment& env)
 {
@@ -285,7 +330,10 @@ void load_camera(LuaEnvironment& env)
 	env.load_module_function("Camera", "set_near_clip_distance",    camera_set_near_clip_distance);
 	env.load_module_function("Camera", "far_clip_distance",         camera_far_clip_distance);
 	env.load_module_function("Camera", "set_far_clip_distance",     camera_set_far_clip_distance);
-	env.load_module_function("Camera", "set_orthographic_metrics",  camera_set_orthographic_metrics);	
+	env.load_module_function("Camera", "set_orthographic_metrics",  camera_set_orthographic_metrics);
+	env.load_module_function("Camera", "set_viewport_metrics",      camera_set_viewport_metrics);
+	env.load_module_function("Camera", "screen_to_world",  			camera_screen_to_world);
+	env.load_module_function("Camera", "world_to_screen",  			camera_world_to_screen);
 
 	env.load_module_enum("Camera", "ORTHOGRAPHIC", ProjectionType::ORTHOGRAPHIC);
 	env.load_module_enum("Camera", "PERSPECTIVE", ProjectionType::PERSPECTIVE);