下面来分享一下unity3d 制作物体血条的具体流程怎么弄？废话不多说，下面直接就上图和代码：

通过gui的GUI.DrawTexture方法来实现血条，如下图：

1. using UnityEngine;
2. using System.Collections;
3. 
   
4. /// <summary>
5. /// 血条
6. /// </summary>
7. public class Wy2HealthBar : MonoBehaviour {
8. 
   
9.     public Texture2D HealthBg;
10.     public Texture2D Heathforce;
11. 
    
12.     public Vector2 offset = new Vector2(13,15);
13. 
    
14.     private Wy2AIHealth health;
15. 
    
16. 
    
17. 
    
18.     void Setup()
19.     {
20.         health = GetComponent<Wy2AIHealth>();
21.     }
22. 
    
23.     void Reset()
24.     {
25.         Setup();
26.     }
27. 
    
28. // Use this for initialization
29. void Start () {
30.         Setup();
31. }
32. 
    
33. // Update is called once per frame
34. void Update () {
35. 
    
36. }
37. 
    
38.     void OnGUI()
39.     {
40.         if (Event.current.type != EventType.Repaint)
41.         {
42.             return;
43.         }
44.         Rect rectbg=new Rect(0,0,256,64);
45. 
    
46.         GUI.DrawTexture(rectbg, HealthBg);
47. 
    
48.         float width = (health.CurrentHealth*145) / health.MaxHealth;
49. 
    
50.         if (width < 1) return;
51. 
    
52.         Rect rectfc = new Rect(offset.x, offset.y, width, 10);
53.         GUI.DrawTexture(rectfc, Heathforce);
54.     }
55. }