question about playing animation

zxwt

I add a sprite inside a rigidbody representing the player.I try to play the walking animation while using the move() function.The character moves forward without the animation, I know that the animation stuck at the first frame because I use the fixed_process function.My code end up with something like this:[code]var anim = ""var anim_new = ""func ready(): # Called every time the node is added to the scene. # Initialization here set_fixed_process(true) func _fixed_process(delta): play(delta) if anim != anim_new: anim_new = anim get_node("AnimationPlayer").play(anim)func play(delta): anim = "idle" if Input.is_action_pressed("ui_accept"): anim = "run[/code] I get this idea from the platformer demo but I don't really understand it.I know the animation will only play when the animation is different.Isn't anim and anim_new will become the same after the first loop?Why would it keep playing the idle animation?I need some explanation to understand the loop. :-<br />

danjo

The animation player will always play the same animation, even if "ui_accept" is pressed because anim_new always keeps it's initial value. In the worst case this means that no animation is played at all (or maybe a chrashing game, not sure what happens if you pass null to AnimationPlayer.play()).The code should look like this:[code]var anim = ""var anim_new = "idle"func ready(): # Called every time the node is added to the scene. # Initialization here set_fixed_process(true) func fixed_process(delta): play(delta) if anim != anim_new: anim_new = anim get_node("AnimationPlayer").play(anim)func play(delta): anim_new = "idle" if Input.is_action_pressed("ui_accept"): anim_new = "run"[/code]

zxwt

You misunderstand something, my code actually works. When the game starts, the idle animation plays and when I press "ui_accepted", the run animation plays. I want to know why it works.

danjo

You  are right, i misread the code.Maybe this helps.When _fixed_process() is called the first time, the 'if ..' is always true, no matter if a ui_accept is pressed or not. Let's say it's not pressed so anim gets set to "idle", anim_new is still set to "", so the if evaluates to true ("idle" != ""), so the "idle" animation plays and anim_new is set to anim.As long as ui_accept is not pressed the idle animation keeps playing, because "idle" != "idle" evaluates to false.If ui_accept is pressed, anim gets set to "run", so the if is again true ("run" != "idle") the run animation plays and anim_new is set to anim.As long as ui_accept is pressed, anim and anim_new will both be set to "run", the moment it's not pressed anim gets set to "idle" again but anim_new is still set to "run" so the if evaluates to true ("idle" != "run").Hopes that makes it clear, it could also help to add some print()'s to see what's going on.I guess what confused me was that anim_new is not the new animation but the current animation.

zxwt

Thx, I understand now, so I guess the animation will not stop until I tell it to stop. That's why it will continue to loop when I enable looping.