Color pixel functions.

include/lua_core.h

@@ -10,6 +10,7 @@ void luaRegister();
 Color uluaGetColor( lua_State *L );
 Vector2 uluaGetVector2( lua_State *L );
 Vector3 uluaGetVector3( lua_State *L );
+Vector4 uluaGetVector4( lua_State *L );
 Rectangle uluaGetRectangle( lua_State *L );
 Quaternion uluaGetQuaternion( lua_State *L );
 Matrix uluaGetMatrix( lua_State *L );
@@ -20,6 +21,7 @@ NPatchInfo uluaGetNPatchInfo( lua_State *L );
 void uluaPushColor( lua_State *L, Color color );
 void uluaPushVector2( lua_State *L, Vector2 vector );
 void uluaPushVector3( lua_State *L, Vector3 vector );
+void uluaPushVector4( lua_State *L, Vector4 vector );
 void uluaPushRectangle( lua_State *L, Rectangle rect );
 void uluaPushMatrix( lua_State *L, Matrix matrix );
 void uluaPushRayCollision( lua_State *L, RayCollision rayCol );