3D coyote time

Question

I want to add coyote time to my jumping. I am unsure how I would be able to do it without messing my existing code. I would like to do it by setting a timer when the player touches the ground and then reducing that with Time.deltaTime.

Here is my current jump code:

 // Changes the height position of the player (jump)
         if (jumpAction.triggered && groundedPlayer)
         {
             playerVelocity.y += Mathf.Sqrt(jumpHeight * -3.0f * gravityValue);
             animator.CrossFade(jumpAnimation, animationPlayTransition);
         }
 
         playerVelocity.y += gravityValue * Time.deltaTime;
         controller.Move(playerVelocity * Time.deltaTime);

Answer 1

I am unsure how I would be able to do it without messing my existing code.

You will have to mess with it, but you don't need to mess it up! :) Basically, coyote time changes the condition for jumping from

I am touching the ground right now

to

I was touching the ground within the last X seconds

You can implement it like this:

 private const float COYOTE_TIME_SECONDS = 0.5f;
 private float timeSinceLastGroundTouch = Mathf.Infinity;

 if (groundedPlayer)
 {
     // Reset coyote time
     timeSinceLastGroundTouch = 0f;
 }
 else if (timeSinceLastGroundTouch < COYOTE_TIME_SECONDS)
 {
     // "Run" coyote timer
     timeSinceLastGroundTouch += Time.deltaTime;
 }
 
 var canJump = false;
 if (timeSinceLastGroundTouch < COYOTE_TIME_SECONDS)
 {
     canJump = true;
 }
 
 if (jumpAction.triggered && canJump) // Note that it's canJump now
 {
     // Jump
 }

3D coyote time

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