Question

我使用下面的代码我可以移动我的角色并将其限制在摄像机视图中。但由于我正在使用输入Input.GetAxisRaw ("Horizontal");，我的角色会使用a-d键和箭头键移动。但我想要另一个角色的箭头键。我尝试AddForce（我不喜欢字符移动）和if语句来使用特定的键。但我无法使用我的代码检查边界。你能提出什么建议吗？（顺便说一句，我的角色只能水平移动）

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

public class PlayerBlueController : MonoBehaviour {

    public float speed;
    public Rigidbody2D player1rb;
    public float viewpointfirst;
    public float viewpointsecond; 


    // Use this for initialization
    void Start () {
    }

    // Update is called once per frame
    void FixedUpdate () {

        float horizontal = Input.GetAxisRaw ("Horizontal");
        if((horizontal > 0) ||  (horizontal < 0)) 
        {
            Vector3 tempVect = new Vector3 (horizontal, 0, 0);
            tempVect = tempVect.normalized * speed * Time.deltaTime;
            Vector3 newPos = player1rb.transform.position + tempVect;
            checkBoundary (newPos);
        }
    }




    void checkBoundary(Vector3 newPos)
    {
        Vector3 camViewPoint = Camera.main.WorldToViewportPoint (newPos);
        camViewPoint.x = Mathf.Clamp (camViewPoint.x, viewpointfirst, viewpointsecond);
        Vector3 finalPos = Camera.main.ViewportToWorldPoint (camViewPoint);
        player1rb.MovePosition (finalPos);
    }
}

Answer 1

修改旧版answer以使用Input.GetKey代替Input.GetAxisRaw。您所要做的就是在向左移动时将Vector3 (horizontal, 0, 0);的水平变量替换为-1，向右移动时替换为1，而在未按下时将0替换为Update。其余代码保持不变。我添加了更多函数来防止多次编写相同的代码，因为你希望 player 1 和 player 2 使用不同的密钥，这需要相同的代码。

播放器1 的WASD和播放器2 的箭头键。您可以在调用movePlayer的{{1}}函数中将这些更改为您想要的任何键。

public float speed = 50;

public Rigidbody2D rb1;

public Rigidbody2D rb2;

public void Update()
{
    //Player one (WASD)
    movePlayer(rb1, KeyCode.A, KeyCode.D, KeyCode.W, KeyCode.S);

    //Player two (Arrow keys)
    movePlayer(rb2, KeyCode.LeftArrow, KeyCode.RightArrow, KeyCode.UpArrow, KeyCode.DownArrow);
}

void movePlayer(Rigidbody2D targetRg, KeyCode left, KeyCode right, KeyCode up, KeyCode down)
{
    Vector2 hAndV = getInput(targetRg, left, right, up, down);

    Vector3 tempVect = new Vector3(hAndV.x, hAndV.y, 0);
    tempVect = tempVect.normalized * speed * Time.deltaTime;

    Vector3 newPos = targetRg.transform.position + tempVect;
    checkBoundary(targetRg, newPos);
}

Vector2 getInput(Rigidbody2D targetRg, KeyCode left, KeyCode right, KeyCode up, KeyCode down)
{
    Vector2 input = Vector4.zero;

    //Horizontal
    if (Input.GetKey(left))
        input.x = -1;
    else if (Input.GetKey(right))
        input.x = 1;
    else
    {
        input.x = 0;
        targetRg.velocity = Vector3.zero;
        targetRg.angularVelocity = 0f;
    }

    //Vertical
    if (Input.GetKey(up))
        input.y = 1;
    else if (Input.GetKey(down))
        input.y = -1;
    else
    {
        input.y = 0;
        targetRg.velocity = Vector3.zero;
        targetRg.angularVelocity = 0f;
    }

    return input;
}

void checkBoundary(Rigidbody2D targetRg, Vector3 newPos)
{
    //Convert to camera view point
    Vector3 camViewPoint = Camera.main.WorldToViewportPoint(newPos);

    //Apply limit
    camViewPoint.x = Mathf.Clamp(camViewPoint.x, 0.04f, 0.96f);
    camViewPoint.y = Mathf.Clamp(camViewPoint.y, 0.07f, 0.93f);

    //Convert to world point then apply result to the target object
    Vector3 finalPos = Camera.main.ViewportToWorldPoint(camViewPoint);
    targetRg.MovePosition(finalPos);
}

如何在摄像机视图边界内使用WASD和箭头键移动多个玩家

1 个答案: