Problems with WaitForSeconds

Questions & Answers
1

I wanted the walking animation to crossfade for my character if any of the WASD keys are pressed. This works fine, but I also wanted the standing animation to crossfade when all WASD keys are not being pressed and then wait 4 seconds before crossfading to the idle animation. Here is my script:

#pragma strict

function Update () {

	if(Input.GetKey(KeyCode.W) || Input.GetKey(KeyCode.A) || Input.GetKey(KeyCode.D) || Input.GetKey(KeyCode.S)) {
	
		animation.CrossFade("walk");
}
	if(Input.GetKeyUp(KeyCode.W) || Input.GetKeyUp(KeyCode.A) || Input.GetKeyUp(KeyCode.D) || Input.GetKeyUp(KeyCode.S)) {
		
		animation.CrossFade("standing");
		yield WaitForSeconds(4);
		
		animation.CrossFade("idle");
	}
}

Instead of doing what I want it to do, it doesn’t play any animations at all unless I have “Play Automatically” on, in which case it only plays that main animation and nothing else. Could someone please help me understand this?

PEMLOKIS (Please Excuse My Lack Of Knowledge In Scripting)

2

You cannot yield WaitForSeconds inside Update. You must use a coroutine. In UnityScript, it’s done like so:

#pragma strict
 
waitingForIdle : bool = false;

function Update () {
 
    if(Input.GetKey(KeyCode.W) || Input.GetKey(KeyCode.A) || Input.GetKey(KeyCode.D) || Input.GetKey(KeyCode.S)) {
 
       animation.CrossFade("walk");
}
    if(Input.GetKeyUp(KeyCode.W) || Input.GetKeyUp(KeyCode.A) || Input.GetKeyUp(KeyCode.D) || Input.GetKeyUp(KeyCode.S)) {
 
       animation.CrossFade("standing");

       yield WaitToIdle();

}

function WaitToIdle () {

        waitingForIdle = true;
	// suspend execution for 4 seconds
	yield WaitForSeconds (4);
        animation.CrossFade("idle");
}
}

Try that, I haven’t tested it, but I think it will do the trick.