Script

var hBounce = 14;

if (image_angle !=0){ //If moving platform upside down
if instance_touch(obj_player){
        if (!obj_player.bbox_top < bbox_bottom){
            if obj_player.Key_Left{
            obj_player.hsp = hBounce;}
            if obj_player.Key_Right{
            obj_player.hsp = -hBounce;}
        }
    }
}

if (image_angle = 0){
if instance_touch(obj_player){
        if (!obj_player.bbox_bottom >= bbox_top){
            if obj_player.Key_Left{
            obj_player.hsp = hBounce;}
            if obj_player.Key_Right{
            obj_player.hsp = -hBounce;}
        }
    }
}