if (instance_position(checkx, checky, obj_tilepink))
    thistile = 1;
if (instance_position(checkx, checky, obj_tilered))
    thistile = 2;
if (instance_position(checkx, checky, obj_tilepurple))
    thistile = 3;
if (instance_position(checkx, checky, obj_tileyellow))
    thistile = 4;
if (instance_position(checkx, checky, obj_tileorange))
    thistile = 5;
if (instance_position(checkx, checky, obj_tileblue))
    thistile = 6;
if (instance_position(checkx, checky, obj_tilegreen))
    thistile = 7;
tileid = collision_point(checkx, checky, obj_tileguytileparent, 0, 1);