将旧的 Unity 代码升级到 Unity 5 [英] Upgrading old Unity code to Unity 5

问题描述

在触发按钮上播放动画的代码似乎不起作用.我在 Youtube 上看到了一个视频，并带有一个简单的 animation.Play(); 它可以处理该视频，但是，我无法在我的计算机上运行它.我做错了什么还是团结改变了它?请帮助我在网上找不到解决方案.所有解决方案也不起作用".

The code to play animation on trigger button does not seem to work. I saw a video on Youtube and with a simple animation.Play(); it worked on that video but yet, I couldn't get it to work on my computer. What did I do wrong or did unity change it? please help I cant find solution on the net. All the "solution not working either".

这是我得到的错误:

类型 UnityEngine.Component 不包含播放定义并且没有 UnityEngine.component 类型的扩展方法 Play 可以被发现

Type UnityEngine.Component does not contain a definition for play and no extension method Play of type UnityEngine.component could be found

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

public class animationtrigger : MonoBehaviour {


    void Start()
    {

    }
    int speed = 10;
    // Update is called once per frame
    void Update () {
        if (Input.GetKeyDown("N"))
        {
            animation.Play("Cube|moving side");
            //transform.Translate(1 * Vector3.forward * Time.deltaTime * speed);
            //Animator anim = GetComponent<Animator>();
            //if (null != anim)
        //  {
        //      anim.Play("Cube|moving side");
        //  }
        }
    }
}

推荐答案

我做错了什么还是Unity改变了它?

what did i do wrong or did unity change it?

统一改变了.我见过类似的 过去几周的问题.虽然我不认为它们是重复的，但在这里回答所有这些以备将来的问题是有意义的.

Unity changed. I've seen similar questions for the past few weeks. Although I don't think they are duplicates but it would make sense to answer all these here for future questions.

animation variable 在 Component 下定义为一个 public 变量，MonoBehaviour 继承自.然后您的代码继承自 MonoBehaviour，并且您可以访问 animation.

The animation variable is defined under Component as a public variable which MonoBehaviour inherits from. Your code then inherits from MonoBehaviour and you have access to animation.

这些是来自 Component 类中已弃用的变量的完整列表:

These are the complete list of variables from the Component class that are deprecated:

public Component animation { get; }
public Component audio { get; }
public Component camera { get; }
public Component collider { get; }
public Component collider2D { get; }
public Component constantForce { get; }
public Component guiElement { get; }
public Component guiText { get; }
public Component guiTexture { get; }
public Component hingeJoint { get; }
public Component light { get; }
public Component networkView { get; }
public Component particleEmitter { get; 
public Component particleSystem { get; }
public Component renderer { get; }
public Component rigidbody { get; }
public Component rigidbody2D { get; }

访问附加到相同脚本的组件的新方法:

使用GetComponent().将该变量的第一个字母大写，使其成为组件类.一个例外是音频，它变成AudioSource 而不是音频.

Use GetComponent<ComponentName>(). Capitalize the first letter of that variable to make it its component class. One exception is audio which becomes AudioSource instead of Audio.

1.animation.Play("Cube|moving side"); 变成 GetComponent().Play("Cube|moving side");

2.rigidbody2D.velocity 变成 GetComponent().velocity

3.rigidbody.velocity 变成 GetComponent().velocity

4.renderer.material 变成 GetComponent().material

5.particleSystem.Play() 变成 GetComponent().Play()

6.collider2D.bounds 变成 GetComponent().bounds

7.collider.bounds 变成 GetComponent().bounds

8.audio.Play("shoot"); 变成 GetComponent().Play("shoot");

9.camera.depth 变成 GetComponent().depth

我不必将所有这些都列出来，因为下面的示例应该可以指导任何人执行此操作.这些是 SO 上最常被问到和被问到的组件.

I don't have to put all of them because the example below should guide anyone do this. These are the most asked and asked components on SO.

缓存组件:

您可以缓存组件，这样您就不必每次都使用 GetComponent.

You can cache component so that you don't have be GetComponent everytime.

Animation myAnimation;
void Start()
{
    //Cache animation component
    myAnimation = GetComponent<Animation>();
}

void Update()
{
    if(somethingHappens)
    {
        //No GetComponent call required again
        myAnimation.Play("Cube|moving side");
    }
}

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