unity3d-游戏实战突出重围，第二天制作血条

 1 using UnityEngine;
 2 using System.Collections;
 3 
 4 public class xt : MonoBehaviour
 5 {
 6 
 7     //红色血条
 8     public Texture2D blood_red;
 9     //黑色血条
10     public Texture2D blood_black;
11     //当前生命值
12     private int HP = 100;
13 
14     void OnGUI()
15     {
16         if (GUILayout.RepeatButton("加血"))
17         {
18             //增加生命值
19             if (HP < 100)
20             {
21                 HP++;
22             }
23         }
24         if (GUILayout.RepeatButton("减血"))
25         {
26             //减少生命值
27             if (HP > 0)
28             {
29                 HP--;
30             }
31         }
32         //根据当前生命值计算红色血条显示的宽度
33         int blood_width = blood_red.width * HP / 100;
34         //绘制黑色血条
35         GUI.DrawTexture(new Rect(100, 100, blood_black.width, blood_black.height), blood_black);
36         //绘制红色血条
37         GUI.DrawTexture(new Rect(100, 100, blood_width, blood_red.height), blood_red);
38 
39     }
40 }
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http://pan.baidu.com/s/1dDEjy9b