How to detect whether a character landed after a jump

Questions & Answers
1

In my Update() function I have:

isGrounded = Physics2D.Linecast (transform.position, groundCheck.position, 1 << LayerMask.NameToLayer("Ground"));

if (Input.GetButtonDown ("Jump") && isGrounded) {
	jump = true;

}

It works fine, now, I jump using this code in FixedUpdate():

if (jump) {
	anim.SetTrigger("Jump");
	rb.AddForce(new Vector2 (0f, jumpForce));
	jump = false;
}

The problem is, how do I detect that the character landed? I can’t use isGrounded, as it’s true at the point of jump, so the Trigger to change animation back to Idle would launch immediately after jumping.

2

The jump state shouldn’t have a transition to idle. Instead, divide it into Jumping → Falling → Landing → Idle or similar.

If the velocity in Y is negative then it can transition to Falling. While Falling, if isGrounded becomes true then it can transition to Landing and then Idle.

Also, moving code from Update/FixedUpdate into specific animation states makes things much easier to control.