pixel_x is ignored while animating a transform

ID:1477656
 
Jan 21 2014, 6:05 pm
Resolved
When pixel offsets were changed during an obj or mob's animation, the changes did not appear while the animation was ongoing.
BYOND Version:504.1226
Operating System:Windows 7 Pro 64-bit
Web Browser:Chrome 32.0.1700.76
Applies to:Dream Seeker
Status: Resolved (504.1227)
This issue has been resolved.
Here's the code

world
    fps = 40
    icon_size = 32

mob
    icon = 'mob.dmi'
    icon_state = "mob"

obj/spinner
    icon = 'spinner.dmi'
    icon_state = "spinner"

    proc/test()
        animate(src, transform = turn(transform, 120), time = 5, loop = -1)
        animate(transform = turn(transform, 120), time = 5)
        animate(transform = turn(transform, 120), time = 5)

        while(src)
            pixel_x ++
            sleep(world.tick_lag)

mob/Login()
    ..()
    src.loc = locate(1,1,1)
    var/obj/spinner/s = new(locate(2,2,1))
    spawn s.test()


The pixel_x of the object should increase with each server tick, but does not. The actual value will increase but will not affect its visual position within the world.
Jan 21 2014, 9:34 pm
I think the problem is that the matrix you're animating is the one stored from before the pixel_x started changing, meaning it'll be using the visuals from before the values changed.

You can pass pixel_x and pixel_y to animate() though, which should handle the change for you.
Jan 21 2014, 9:41 pm (Edited on Jan 21 2014, 9:50 pm)
In response to Nadrew
Unfortunately in my true application (not displayed here), that is not possible because pixel_x and pixel_y must ramp up until the edge of a tile and then x and y must update appropriately while pixel_x and pixel_y are reset appropriately. This is controlled via a velocity calculated vector.

There's currently no way to make a pixel-based projectile move in a tile-based game with a rotation animate().
Jan 22 2014, 11:43 am
Lummox JR resolved issue with message:
When pixel offsets were changed during an obj or mob's animation, the changes did not appear while the animation was ongoing.
Jan 22 2014, 10:04 pm
Works like a charm, thanks!