C#错误:非静态字段，方法或属性需要对象引用 [英] C# error: An object reference is required for the non-static field, method, or property

问题描述

我希望我的玩家加快速度几秒钟.当它收集4个项目(paintCount = 4)时，玩家会在短时间内获得移动速度提升. 我在Paintser类中总是出错:SimplePlayer0.SpeedUp();. 我已经尝试了许多方法来应对它，但是它们都没有起作用. 我在Unity工作.

I want my player to give a speed boost for a few seconds. When it collects 4 items (paintCount = 4), the player gets a movement speed boost for a short period of time. I always have an error in the class Paintser: SimplePlayer0.SpeedUp();. I've tried many things to counter it, but none of them are working. I'm working in Unity.

错误:非静态字段，方法或属性'SimplePlayer0.SpeedUp()需要对象引用.

Error: An object reference is required for the non-static field, method, or property 'SimplePlayer0.SpeedUp().

这是玩家脚本:

using UnityEngine;
using System.Collections;

public class SimplePlayer0 : MonoBehaviour
{

  // SPEEDVARIABLES
  public static float speed = 3.5f;


  // BONUSSPEED
  private static float speedBoostTime;
  public static float SpeedBoostTime
  {
    get
    {
      return speedBoostTime;
    }
    set
    {
      speedBoostTime = value;
    }
  }



   // BONUSSPEED
   public void SpeedUp()
  {
    speed *= 2;
    SpeedBoostTime = 3; // seconds
  }

   void Update()
   {
    // BONUSSPEED
    while (speedBoostTime > 0)
    {
     speedBoostTime -= Time.deltaTime;
     if (speedBoostTime <= 0) speed /= 2;
    }
  } 

这是加电脚本，其中的游戏对象被销毁了.

This is the power up script, where the gameobject gets destroyed.

using UnityEngine;
using System.Collections;

public class PowerUp : MonoBehaviour
{
  void OnTriggerEnter2D(Collider2D other)
  {
    if (other.tag == "Player")
    {
      Paintser.ExtraTime();
      Destroy(this.gameObject);
      Paintser.paintCount++;
    }
  }
}

最后是发生所有魔术(或错误)的脚本:

And finally the script where all the magic (or errors) happens:

using UnityEngine;
using System.Collections;

public class Paintser : PowerUp
{

  public static int paintCount = 0;
  public int speedBoostTime = 3;

  public static void ExtraTime()
  {
    if (paintCount == 4)
    {

      SimplePlayer0.SpeedUp();

      Paintser.paintCount = Paintser.paintCount = 0;

    }
  }
}

推荐答案

SpeedUp方法是SimplePlayer0类的实例成员.

因此，您需要将其作为实例方法调用:

Thus, you need to call it as an instance method:

SimplePlayer0 player0 = new SimplePlayer0();
player0.SpeedUp();

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