在触发对撞机上播放动画

Question

So I have looked this up, yet nothing worked for me. I have an animation, called 'gemAnimation1', and I have a box collider set to trigger. When it collides with the player, I want it to switch animations. This is the code I pieced together, but it doesn't work. The trigger for the animation 'hasTouched'.

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

public class gemCollider : MonoBehaviour {

    private Animator animator;

    void Start()
    {
        animator = GetComponent<Animator>();
    }
    void Update ()
    {

    }

    void OnTriggerEnter (Collider other)
    {
        animator.SetTrigger("hasTouched");
    }
}

EDIT

This is a screenshot of the gameobject the script is attached to.

Answer 1

The OnTriggerEnter function is for 3D GameObjects.

You are using SpriteRenderer and BoxCollider2D which are both for 2D GameObjects. The OnTriggerEnter2D function with Collider2D as argument must be used.

void OnTriggerEnter2D(Collider2D collision)
{
    animator.SetTrigger("hasTouched");
}

Note:

You must also attach Rigidbody2D to one of the 2D Objects in order for the OnTriggerEnter2D function to be called. I don't see Rigidbody2D in your screenshot.