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C++游戏开发入门:最简单的游戏代码教程
2023-07-01 06:51:07 深夜i     --     --
C++ 游戏开发 入门 代码教程 最简单

C++是一种流行的编程语言,使用它可以开发出各种应用程序,包括游戏。如果你对游戏开发有兴趣,那么学习C++游戏开发是一个不错的选择。在本篇文章中,我们将向你介绍最简单的C++游戏代码教程,以供入门学习。

1. 设置游戏窗口

在C++中,设置游戏窗口是第一步。可以使用Windows API来创建一个窗口。下面是一个简单的代码片段,用来创建一个空白的窗口。

#include

LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam);

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)

{

  // Register the window class.

  const char CLASS_NAME[] = "My Window Class";

  WNDCLASS wc = { };

  wc.lpfnWndProc  = WndProc;

  wc.hInstance   = hInstance;

  wc.lpszClassName = CLASS_NAME;

  RegisterClass(&wc);

  // Create the window.

  HWND hWnd = CreateWindowEx(

    0,               // Optional window styles.

    CLASS_NAME,           // Window class

    "Learn to Program Windows",   // Window text

    WS_OVERLAPPEDWINDOW,      // Window style

    // Size and position

    CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,

    NULL,    // Parent window  

    NULL,    // Menu

    hInstance, // Instance handle

    NULL    // Additional application data

  );

  if (hWnd == NULL)

    return 0;

  ShowWindow(hWnd, nCmdShow);

  // Run the message loop.

  MSG msg = { };

  while (GetMessage(&msg, NULL, 0, 0)) {

    TranslateMessage(&msg);

    DispatchMessage(&msg);

  }

  return 0;

}

LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)

{

  switch (message) {

    case WM_DESTROY:

      PostQuitMessage(0);

      break;

    default:

      return DefWindowProc(hWnd, message, wParam, lParam);

  }

  return 0;

}

2. 添加游戏逻辑

有了一个窗口后,就可以开始编写游戏逻辑了。下面是一个简单的示例游戏,它让玩家通过键盘控制一个小球,让它移动到屏幕上的特定位置。

#include

LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam);

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)

{

  // Register the window class.

  const char CLASS_NAME[] = "My Window Class";

  WNDCLASS wc = { };

  wc.lpfnWndProc  = WndProc;

  wc.hInstance   = hInstance;

  wc.lpszClassName = CLASS_NAME;

  RegisterClass(&wc);

  // Create the window.

  HWND hWnd = CreateWindowEx(

    0,               // Optional window styles.

    CLASS_NAME,           // Window class

    "Learn to Program Windows",   // Window text

    WS_OVERLAPPEDWINDOW,      // Window style

    // Size and position

    CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,

    NULL,    // Parent window  

    NULL,    // Menu

    hInstance, // Instance handle

    NULL    // Additional application data

  );

  if (hWnd == NULL)

    return 0;

  ShowWindow(hWnd, nCmdShow);

  // Game variables

  int ball_x = 100, ball_y = 100;

  const int ball_r = 20;

  int target_x = 500, target_y = 300;

  // Run the message loop.

  MSG msg = { };

  while (GetMessage(&msg, NULL, 0, 0)) {

    TranslateMessage(&msg);

    DispatchMessage(&msg);

    // Update game state

    if (GetAsyncKeyState(VK_LEFT))

      ball_x -= 5;

    if (GetAsyncKeyState(VK_RIGHT)) {

      ball_x += 5;

    }

    if (GetAsyncKeyState(VK_UP))

      ball_y -= 5;

    if (GetAsyncKeyState(VK_DOWN)) {

      ball_y += 5;

    }

    // Draw game graphics

    HDC hdc = GetDC(hWnd);

    Ellipse(hdc, ball_x - ball_r, ball_y - ball_r, ball_x + ball_r, ball_y + ball_r);

    MoveToEx(hdc, target_x - 10, target_y - 10, NULL);

    LineTo(hdc, target_x + 10, target_y + 10);

    MoveToEx(hdc, target_x - 10, target_y + 10, NULL);

    LineTo(hdc, target_x + 10, target_y - 10);

    ReleaseDC(hWnd, hdc);

    // Check for win condition

    if (abs(ball_x - target_x) < ball_r && abs(ball_y - target_y) < ball_r) {

      MessageBox(hWnd, "You win!", "Congratulations", MB_OK);

      PostQuitMessage(0);

    }

  }

  return 0;

}

LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)

{

  switch (message) {

    case WM_DESTROY:

      PostQuitMessage(0);

      break;

    default:

      return DefWindowProc(hWnd, message, wParam, lParam);

  }

  return 0;

}

3. 结束游戏

最后,当玩家完成了游戏时,你需要结束游戏。可以在玩家完成游戏时显示一个对话框,并在用户单击“确定”时关闭窗口。

if (abs(ball_x - target_x) < ball_r && abs(ball_y - target_y) < ball_r) {

  if (MessageBox(hWnd, "You win! Play again?", "Congratulations", MB_YESNO) == IDYES)

    ball_x = 100;

    ball_y = 100;

    target_x = 500;

    target_y = 300;

  else {

    PostQuitMessage(0);

  }

}

以上就是一个最简单的C++游戏代码教程,适合初学者入门学习。当你熟悉了这些基础知识后,可以尝试制作更加复杂、有趣的游戏。祝你好运!

  
  
下一篇: 介绍与使用

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