Table of Contents

• Animation Window
  • Animation Event
• Animator Window
  • Animation States
  • Animation Transitions
  • State Machine
  • StateMachineBehaviour

Animation Window reference

• Add Property: must select GameObject in Hierarchy window
• Samples: Frames per second

• For Sprite Animations, a key frame without sprite is NOT played
• There are curves on transitions like:

Animation Event

// This C# function can be called by an Animation Event
public void PrintFloat (float theValue) {
    Debug.Log ("PrintFloat is called with a value of " + theValue);
}

Animator Window reference

using UnityEngine;
using System.Collections;

public class SimplePlayer : MonoBehaviour {

    Animator animator;

    // Use this for initialization
    void Start () {
        animator = GetComponent<Animator>();
    }

    // Update is called once per frame
    void Update () {
        float h = Input.GetAxis("Horizontal");
        float v = Input.GetAxis("Vertical");
        bool fire = Input.GetButtonDown("Fire1");

        animator.SetFloat("Forward",v);
        animator.SetFloat("Strafe",h);
        animator.SetBool("Fire", fire);
    }

    void OnCollisionEnter(Collision col) {
        if (col.gameObject.CompareTag("Enemy"))
        {
            animator.SetTrigger("Die");
        }
    }
}

Animation States

Animation Transitions

• Exit Time: Normalized Time; for example, an exit time of 0.75 means that on the first frame where 75% of the animation has played, the Exit Time condition is true
• An Exit Time of 3.5 are evaluated once, after three and a half loops.

• Duration out marker to change the Duration of the transition.
• Duration in marker to change the duration of the transition and the Exit Time.
• Target transition to adjust the Transition Offset.
• Preview playback marker to scrub through the animation blend in the preview window at the bottom of the Inspector.

State Machine

The Exit node is used to indicate that a state machine should exit.

But, there is no explicit explanation what happens On Exit node. What I experimented:

• If in top-level state machine, goes back to entry
• If in a sub-state machine, goes out on the edge of the representative node in the parent state machine

StateMachineBehaviour

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class MyBehaviour : StateMachineBehaviour {
    // OnStateEnter is called when a transition starts and the state machine starts to evaluate this state
    override public void OnStateEnter(Animator animator, AnimatorStateInfo stateInfo, int layerIndex) {

    }

    // OnStateUpdate is called on each Update frame between OnStateEnter and OnStateExit callbacks
    override public void OnStateUpdate(Animator animator, AnimatorStateInfo stateInfo, int layerIndex) {

    }

    // OnStateExit is called when a transition ends and the state machine finishes evaluating this state
    override public void OnStateExit(Animator animator, AnimatorStateInfo stateInfo, int layerIndex) {

    }

    // OnStateMove is called right after Animator.OnAnimatorMove().
    // Code that processes and affects root motion should be implemented here
    override public void OnStateMove(Animator animator, AnimatorStateInfo stateInfo, int layerIndex) {

    }

    // OnStateIK is called right after Animator.OnAnimatorIK().
    // Code that sets up animation IK (inverse kinematics) should be implemented here.
    override public void OnStateIK(Animator animator, AnimatorStateInfo stateInfo, int layerIndex) {

    }
}