WhyGL:一套学习OpenGL的框架,及翻写Nehe的OpenGL教程

 1 #ifndef _FlyingHelper_H_
 2 #define _FlyingHelper_H_
 3 
 4 // INCLUDES -----------------------------------------------------------------------------
 5 
 6 #include "..\DemoGL.h"
 7 
 8 // --------------------------------------------------------------------------------------
 9 
10 class CFlyingHelper : public CDemoGL
11 {
12 public:
13     CFlyingHelper();
14 
15     ~CFlyingHelper();
16 
17     // 对该对象类型的判断
18     WHY_DEFINE_IS_KIND_OF(CFlyingHelper, CDemoGL);
19 
20     // 初始化处理
21     bool            Initialize();
22 
23     // 销毁处理(删除创建的对象,恢复GL设备状态)
24     void            Destroy();
25 
26     // 执行,用于对逻辑的处理
27     void            Execute(Yuint deltaTime);
28 
29     // 渲染
30     void            Render();
31 
32     // UI界面的渲染
33     void            RenderUI();
34 
35     // Windows系统消息响应
36     bool            ProcessSystemMessage(Yuint, Yuint, Yuint);
37 
38     // 返回功能说明
39     const char*     GetTip() const
40     {
41         return "Flying Helper: Tell you how to create a demo.";
42     }
43 
44     // 对GL设备状态的设置
45     void            InitGLStates();
46 
47     // 键盘事件响应
48     void            OnKeyDown(Yuint key);
49 
50     // 鼠标左键按下响应
51     void            OnMouseDown(short x, short y);
52 
53     // 鼠标左键弹起响应
54     void            OnMouseUp(short x, short y);
55 
56     // 鼠标移动事件响应
57     void            OnMouseMove(short x, short y);
58 
59     // 窗口大小变化响应
60     void            OnResize(Yuint width, Yuint height);
61 
62 private:
63     short m_mouseX;
64     short m_mouseY;
65     bool m_bMouseDown;
66 };
67 
68 // --------------------------------------------------------------------------------------
69 
70 #endif

  1 // --------------------------------------------------------------------------------------
  2 
  3 #include "..\..\..\WhyEngine\YInterface\WhyModuleAPI.h"
  4 #include "..\..\..\Interface\YicGLDevice.h"
  5 #include "..\..\..\Interface\YicGLFont.h"
  6 #include "..\..\..\Interface\YicGLPrimitive2DRender.h"
  7 #include <gl\gl.h>            // Header File For The OpenGL32 Library
  8 #include <gl\glu.h>            // Header File For The GLu32 Library
  9 #include "FlyingHelper.h"
 10 
 11 // --------------------------------------------------------------------------------------
 12 
 13 #ifndef WM_MOUSEWHEEL
 14   #define WM_MOUSEWHEEL                 0x020A
 15 #endif
 16 
 17 // --------------------------------------------------------------------------------------
 18 
 19 // 将实体对象注册到引擎(非常重要)
 20 WHY_REGISTER_ENTITY(CFlyingHelper)
 21 
 22 // --------------------------------------------------------------------------------------
 23 
 24 CFlyingHelper::CFlyingHelper()
 25 {
 26     m_mouseX = 0;
 27     m_mouseY = 0;
 28     m_bMouseDown = false;
 29 }
 30 
 31 CFlyingHelper::~CFlyingHelper()
 32 {
 33 }
 34 
 35 // 初始化处理
 36 bool            CFlyingHelper::Initialize()
 37 {
 38     if (!CDemoGL::Initialize())
 39     {
 40         return false;
 41     }
 42     
 43     // .......
 44 
 45     // 注册引擎的系统消息层
 46     _WHY_CORE->RegisterEntityLayer(this, YE_ELAYER_WINDOWS_MESSAGE, 0x80000000);
 47 
 48     return true;
 49 }
 50 
 51 // 销毁处理(删除创建的对象,恢复GL设备状态)
 52 void            CFlyingHelper::Destroy()
 53 {
 54     // .......
 55 
 56     CDemoGL::Destroy();
 57 }
 58 
 59 // 执行,用于对逻辑的处理(每帧都会被执行一次)
 60 void            CFlyingHelper::Execute(Yuint deltaTime)
 61 {
 62     // .......
 63 }
 64 
 65 // 渲染(每帧都会被执行一次)
 66 void            CFlyingHelper::Render()
 67 {
 68     // .......
 69 }
 70 
 71 // UI界面的渲染(每帧都会被执行一次)
 72 void            CFlyingHelper::RenderUI()
 73 {
 74     CDemoGL::RenderUI();
 75     
 76     char szPos[64];
 77     sprintf(szPos, "(%d, %d)", m_mouseX, m_mouseY);
 78     unsigned int color = (m_bMouseDown) ? 0xffff0000 : 0xff00ff00;
 79     m_pGLFont->DrawText2D(m_mouseX, m_mouseY, color, szPos);
 80 }
 81 
 82 // Windows系统消息响应
 83 bool            CFlyingHelper::ProcessSystemMessage(Yuint iMsg, Yuint wParam, Yuint lParam)
 84 {
 85     switch (iMsg)
 86     {
 87     case WM_SIZE:
 88         break;
 89     case WM_KEYDOWN:
 90         break;
 91     case WM_LBUTTONDOWN:
 92         break;
 93     case WM_LBUTTONUP:
 94         break;
 95     case WM_RBUTTONDOWN:
 96         break;
 97     case WM_RBUTTONUP:
 98         break;
 99     case WM_MOUSEMOVE:
100         break;
101     case WM_MOUSEWHEEL:
102         break;
103     }
104 
105     return false;
106 }
107 
108 // 对GL设备状态的设置
109 void            CFlyingHelper::InitGLStates()
110 {
111     // .......
112 }
113 
114 // 键盘事件响应
115 void            CFlyingHelper::OnKeyDown(Yuint key)
116 {
117     char c[4];
118     c[0] = (char)key;
119     c[1] = ‘\r‘;
120     c[2] = ‘\n‘;
121     c[3] = 0;
122     ::OutputDebugStringA(c);
123 }
124 
125 // 鼠标左键按下响应
126 void            CFlyingHelper::OnMouseDown(short x, short y)
127 {
128     m_bMouseDown = true;
129 }
130 
131 // 鼠标左键弹起响应
132 void            CFlyingHelper::OnMouseUp(short x, short y)
133 {
134     m_bMouseDown = false;
135 }
136 
137 // 鼠标移动事件响应
138 void            CFlyingHelper::OnMouseMove(short x, short y)
139 {
140     m_mouseX = x;
141     m_mouseY = y;
142 }
143 
144 // 窗口大小变化响应
145 void            CFlyingHelper::OnResize(Yuint width, Yuint height)
146 {
147     CDemoGL::OnResize(width, height);
148 
149     // .......
150 }