How to check if a certain animation state from an animator is running?

Question

I created an animator called "m4a4animator". Inside it, the main function is called "idle" (nothing), and other 2 states: "shoot" (mouse0) and "reload" (R). These 2 animation states are transitioned to "idle". Now, everything is working... but the only problem I have is this: if I am in the middle of reloading and and press mouse0 (shoot), the animation running state immediately changes to shoot... but I want to block that.

Now, the question: How can I stop CERTAIN animation changes while an animation is running?

Here is my animator

And here is my script:

using UnityEngine;
using System.Collections;

public class m4a4 : MonoBehaviour {

    public Animator m4a4animator;

    // Use this for initialization
    void Start () {

    }

    // Update is called once per frame
    void Update () {
        if (Input.GetKeyDown (KeyCode.R)) {

            m4a4animator.Play("reload");

        }

        if (Input.GetMouseButton(0)) {

            m4a4animator.Play("shoot");

        }
    }
}

Solution 1

For the legacy Animation system, Animation.IsPlaying("TheAnimatonClipName) is used to check if the animation clip is playing.

---

For the new Mechanim Animator system, you have to check if both anim.GetCurrentAnimatorStateInfo(animLayer).IsName(stateName) and anim.GetCurrentAnimatorStateInfo(animLayer).normalizedTime < 1.0f) are true. If they are then animation name is currently playing.

This can be simplified like the function like the Animation.IsPlaying function above.

bool isPlaying(Animator anim, string stateName)
{
    if (anim.GetCurrentAnimatorStateInfo(animLayer).IsName(stateName) &&
            anim.GetCurrentAnimatorStateInfo(animLayer).normalizedTime < 1.0f)
        return true;
    else
        return false;
}

---

Now, everything is working... but the only problem I have is this: if I am in the middle of reloading and and press mouse0 (shoot), the animation running state immediately changes to shoot... but I want to block that.

When the shoot button is pressed, check if the "reload" animation is playing. If it is, don't shoot.

public Animator m4a4animator;
int animLayer = 0;

// Update is called once per frame
void Update()
{
    if (Input.GetKeyDown(KeyCode.R))
    {
        m4a4animator.Play("reload");
    }

    //Make sure we're not reloading before playing "shoot" animation
    if (Input.GetMouseButton(0) && !isPlaying(m4a4animator, "reload"))
    {
        m4a4animator.Play("shoot");
    }
}

bool isPlaying(Animator anim, string stateName)
{
    if (anim.GetCurrentAnimatorStateInfo(animLayer).IsName(stateName) &&
            anim.GetCurrentAnimatorStateInfo(animLayer).normalizedTime < 1.0f)
        return true;
    else
        return false;
}

If you need to wait for the "reload" animation to finish playing before playing the "shoot" animation then use a coroutine. This post described how to do so.

Solution 2

There are other threads about that: https://answers.unity.com/questions/362629/how-can-i-check-if-an-animation-is-being-played-or.html

if (this.animator.GetCurrentAnimatorStateInfo(0).IsName("YourAnimationName"))
{
    //your code here
}

this tells you if you are in a certain state.

Animator.GetCurrentAnimatorStateInfo(0).normalizedTime

this give you the normalized time of the animation: https://docs.unity3d.com/ScriptReference/AnimationState-normalizedTime.html

Try to play with those function, I hope that solve your problem