Moving objects at same hspeed

[Chatterb0x]

Hey gang,
My game is composed of three background objects: rocks, trees, and blossoms. The blossoms are separate objects because enemy blood splatters against it. Initially, the player object moved across the level. Now I've given the background objects a global hspeed to give the illusion of movement. There is just one problem.

The objects don't move in sync! Notice the blossoms in this gif.
http://giphy.com/gifs/blind-samurai-hspeed-3o7TKN1QOUUy94jkvC

The blossom object moves 'off' the branches.
I've put plenty work into wrapping objects (thanks again GM community) but am considering Plan A.

Information about object: obj_blossom5
Sprite: spr_blossom5
Solid: false
Visible: true
Depth: -2
Persistent: false
Parent:
Children:
Mask:
No Physics Object
Create Event:
execute code:

///Setting image_alpha
image_alpha = 0;
//Creating the surface
surface = surface_create(sprite_width, sprite_height)

Begin Step Event:
execute code:

hspeed = global_speed;
move_wrap(true, false, 0);

if(game_start){
surface_set_target(surface);
draw_clear_alpha(0,0);
draw_sprite(spr_blossom5,image_index,0,0);
surface_reset_target();
}

Other Event: Game End:
execute code:

///Prevent memory leak.
surface_free(surface);

Draw Event:
execute code:

///Draw surface
if(game_start == 1){
image_alpha += .05;
draw_surface(surface,x,y)
}

 

[TheouAegis]

Instead of using the built-in move wrap, why don't you just create your own? Because maybe there's an issue with how the builtin function is handling the wrapping which you would easily be able to correct with your own wrapping code.

 

[Sam]

Change the begin step to end step.

 

[Chatterb0x]

Change the begin step to end step.

Tried it. Honey bunches 'a NOOOOOats.
Thanks anyway.

 

[Chatterb0x]

Instead of using the built-in move wrap, why don't you just create your own? Because maybe there's an issue with how the builtin function is handling the wrapping which you would easily be able to correct with your own wrapping code.

I'm pretty resourceful but admittedly would not know where to start.

 

[TheouAegis]

It's as easy as

if hspeed < 0 && bbox_right < 0  x = room_width + (x - bbox_left)
else if hspeed > 0 && bbox_left > room_width  x = x - bbox_right;

put in the End Step event. You can modify things a bit if needed, but it's a pretty basic concept.

 

[Chatterb0x]

@TheouAegis
No dice. The problem isn't the wrapping, however. It may be difficult to tell from that gif but the room is 3000 px wide. The sprite moves off kilter before wrapping.

 

[TheouAegis]

BEFORE wrapping? That's odd. No solid collisions anywhere with the blossoms, right? Do you even have any solids? I never had issues until after wrapping, personally (which is why I coded my own wrapping codes).

 

[Chatterb0x]

Zero solid objects (unless checked by mistake). The only collision that occurs is between the blood and blossom object.

 

[Chatterb0x]

Ahaha...
I may have solved the problem. The tree and blossom were Begin and Step events, respectively. Though they shared an hspeed, it was set at slightly different times.