c# - Unity 5 C# GUI - 进度条不从 0 开始

Question

由于某种原因，我的进度条是倒退而不是前进，它似乎不是从 0 开始。它从 1 开始倒数到 0。我怎样才能让这段代码从 0 开始并向上计数进度条向前而不是向后？

using UnityEngine;
using System.Collections;

public class Distance : MonoBehaviour {

private float finalGoal_dist = 0.0f;
public Transform Player;
public Transform finalGoal;


public Vector2 pos = new Vector2(20, 40);
public Vector2 size = new Vector2(120, 20);
public Texture2D emptyTex;
public Texture2D fullTex;


float t = 0;
float initialDistance;




void Start(){
    initialDistance = Vector2.Distance(Player.position, finalGoal.position);
    // print("Distance to Goal:" + initialDistance);
}


void OnGUI(){
            t = finalGoal_dist / initialDistance;
            GUI.Box(new Rect(0,0, size.x, size.y), emptyTex);
            GUI.Box(new Rect(0,0, size.x*t, size.y), fullTex);
}

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

    finalGoal_dist = Vector2.Distance(Player.position, finalGoal.position);
    //print("Distance to Goal:" + finalGoal_dist);
    print(t);
}
 }

Answer 1

据我所知，它工作正常，但从 0 开始。您需要使用 size.x*(1-t)，因此它需要全宽减去已更新的 %。

试试这个:

GUI.Box(new Rect(0,0, size.x, size.y), emptyTex);
GUI.Box(new Rect(0,0, size.x*(1-t), size.y), fullTex);