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Win32 Pong Game

Govind

Govind

The One Musketeer
Joined
Apr 22, 2005
Sythe Gold
23
Messages
7,825
Win32 Pong Game
Code: 
#include <windows.h>
#include <stdio.h>


LRESULT CALLBACK WndProc(HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam);
RECT humpad, comppad, ball;
RECT UpdatePaddle(int ulX, int ulY)
{
	RECT retVal;
	retVal.left = ulX;
	retVal.top = ulY;
	retVal.right = ulX + 35;
	retVal.bottom = ulY + 10;
	return retVal;
}

RECT UpdateBall(int ulX, int ulY)
{
	RECT retVal;
	retVal.left = ulX;
	retVal.top = ulY;
	retVal.right = ulX + 7;
	retVal.bottom = ulY + 7;
	return retVal;
}
int started = 0;
int APIENTRY WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nShowCmd)
{
	
	WNDCLASSEX wc;
	MSG Msg;
	HWND hWnd, hScore;
	HPEN objPen, bgPen;
	HDC pongDC;
	RECT winRect;
	HBRUSH objBrush, bgBrush;
	int yDirection = 1; //0 = up, 1 = down
	int xDirection = 0; // 0 = straight, 1/-1 = more vertical, 2/-2 full diagonal, 3/-3 more horizantal
	int scoreH = 0, scoreC = 0;
	if(FindWindow("PongWndClass", "Pong"))
	{
		MessageBox(0, "Pong is already running! Close pong or end pong.exe in task manager if it is not responding.", "Problem", MB_OK | MB_ICONEXCLAMATION);
		return 0;
	}
	wc.cbClsExtra = 0;
	wc.cbSize = sizeof(WNDCLASSEX);
	wc.cbWndExtra = 0;
	wc.hbrBackground = CreateSolidBrush(RGB(0x00, 0x00, 0x00));
	wc.hCursor = LoadCursor(NULL, IDC_ARROW);
	wc.hIcon = LoadIcon(NULL, IDI_APPLICATION);
	wc.hIconSm = LoadIcon(NULL, IDI_APPLICATION);
	wc.hInstance = hInstance;
	wc.lpfnWndProc = WndProc;
	wc.lpszClassName = "PongWndClass";
	wc.lpszMenuName = NULL;
	wc.style = CS_OWNDC;
	RegisterClassEx(&wc);
	hWnd = CreateWindowEx(WS_EX_OVERLAPPEDWINDOW, "PongWndClass", "Pong", WS_VISIBLE | WS_SYSMENU | WS_MINIMIZEBOX, 100, 100, 300, 350, NULL, NULL, hInstance, NULL);
	hScore = CreateWindowEx(0, "STATIC", "Press spacebar to start.", WS_VISIBLE | WS_CHILD, 0, 300, 300, 50, hWnd, NULL, hInstance, NULL);
	ShowWindow(hWnd, SW_SHOW);
	pongDC = GetDC(hWnd);
	GetWindowRect(hWnd, &winRect);
	objPen = CreatePen(PS_SOLID, 1, RGB(0xA0, 0xA0, 0xA0));
	bgPen = CreatePen(PS_SOLID, 1, RGB(0x00, 0x00, 0x00));
	bgBrush = CreateSolidBrush(RGB(0x00, 0x00, 0x00));
	objBrush = CreateSolidBrush(RGB(0xA0, 0xA0, 0xA0));
	ball = UpdateBall(125, 240);
	humpad = UpdatePaddle(125, 250);
	comppad = UpdatePaddle(125, 1);
	UpdateWindow(hWnd);
	FillRect(pongDC, &humpad, CreateSolidBrush(RGB(0xC0, 0xC0, 0xC0)));
	FillRect(pongDC, &comppad, CreateSolidBrush(RGB(0xC0, 0xC0, 0xC0)));
	SelectObject(pongDC, objPen);
	Ellipse(pongDC, ball.left, ball.top, ball.right, ball.bottom);
	PeekMessage(&Msg, NULL, 0, 0, PM_NOREMOVE);
	while(Msg.message!=WM_QUIT)
	{
		if(PeekMessage(&Msg, NULL, 0, 0, PM_REMOVE))
		{
			TranslateMessage(&Msg);
			DispatchMessage(&Msg);
		}
		else
		{
			TCHAR scoreTxt[1000];
				if(scoreH==10)
				{
					MessageBox(0, "Congratulations, you won!", "Game over", MB_OK | MB_ICONINFORMATION);
					scoreH = 0;
					scoreC = 0;
					started = 0;
					SetWindowText(hScore, "You win!");
				}
				if(scoreC==10)
				{
					MessageBox(0, "Sorry, you lost!", "Game over", MB_OK | MB_ICONINFORMATION);
					scoreH = 0;
					scoreC = 0;
					started = 0;
					SetWindowText(hScore, "Computer wins!");
				}
			if(started)
			{
				
				sprintf(scoreTxt, "Human: %d\tComputer: %d", scoreH, scoreC);
				SetWindowText(hScore, scoreTxt);
				if(comppad.left > ball.right && comppad.left >= 10)
				{
					
					FillRect(pongDC, &comppad, bgBrush);
					comppad = UpdatePaddle(comppad.left-15, comppad.top);
					FillRect(pongDC, &comppad, objBrush);
				}
				if(comppad.right < ball.left && comppad.right <= 285)
				{
					FillRect(pongDC, &comppad, bgBrush);
					comppad = UpdatePaddle(comppad.left+15, comppad.top);
					FillRect(pongDC, &comppad, objBrush);
				}
				if(ball.left <= 15 || ball.right >= 285)
				{
					xDirection = -1*xDirection;
				}
				if(yDirection==1)
				{
					if(ball.bottom <= 243)
					{
						SelectObject(pongDC, bgPen);
						SelectObject(pongDC, bgBrush);
						Ellipse(pongDC, ball.left, ball.top, ball.right, ball.bottom);
						UpdateWindow(hWnd);
						
						SelectObject(pongDC, objPen);
						SelectObject(pongDC, objBrush);
						ball = UpdateBall(ball.left+xDirection, ball.top+5);
						Ellipse(pongDC, ball.left, ball.top, ball.right, ball.bottom);
						UpdateWindow(hWnd);
					}
					else if(ball.bottom > 240)
					{
						if((ball.right+7 < humpad.left) || (ball.left > 7+humpad.right)) // computer scores
						{
							SelectObject(pongDC, bgPen);
							SelectObject(pongDC, bgBrush);
							Ellipse(pongDC, ball.left, ball.top, ball.right, ball.bottom);
							UpdateWindow(hWnd);

							SelectObject(pongDC, objPen);
							SelectObject(pongDC, objBrush);
							ball = UpdateBall(ball.left+xDirection, ball.top+5);
							Ellipse(pongDC, ball.left, ball.top, ball.right, ball.bottom);
							UpdateWindow(hWnd);
							scoreC++;
							FillRect(pongDC, &humpad, bgBrush);
							humpad = UpdatePaddle(125, 250);
							FillRect(pongDC, &humpad, objBrush);
							FillRect(pongDC, &comppad, bgBrush);
							comppad = UpdatePaddle(125, 1);
							FillRect(pongDC, &comppad, objBrush);
							SelectObject(pongDC, bgPen);
							SelectObject(pongDC, bgBrush);
							Ellipse(pongDC, ball.left, ball.top, ball.right, ball.bottom);
							ball = UpdateBall(125, 240);
							
							SelectObject(pongDC, objPen);
							SelectObject(pongDC, objBrush);
							Ellipse(pongDC, ball.left, ball.top, ball.right, ball.bottom);
							sprintf(scoreTxt, "Human: %d\tComputer: %d", scoreH, scoreC);
							SetWindowText(hScore, scoreTxt);
							started = 0;
						}
						else // ball deflected
						{
							if(ball.right-humpad.left > 0)
							{
								if(ball.right-humpad.left <= 5)
								{
									xDirection = -3;
								}
								else if(ball.right-humpad.left <= 10 && ball.right-humpad.left > 5)
								{
									xDirection = -2;
								}
								else if(ball.right-humpad.left <= 15 && ball.right-humpad.left > 10)
								{
									xDirection = -1;
								}
								else if(ball.right-humpad.left <= 25 && ball.right-humpad.left > 20)
								{
									xDirection = 1;
								}
								else if(ball.right-humpad.left <= 30 && ball.right-humpad.left > 25)
								{
									xDirection = 2;
								}
								else if(ball.right-humpad.left >= 30)
								{
									xDirection = 3;
								}
								else
								{
									xDirection = 0;
								}
							}

							yDirection = 0;
						}
						//yDirection = 0;

					}
				}
				else if(yDirection==0)
				{
					SelectObject(pongDC, bgPen);
					SelectObject(pongDC, bgBrush);
					Ellipse(pongDC, ball.left, ball.top, ball.right, ball.bottom);
					UpdateWindow(hWnd);
					
					SelectObject(pongDC, objPen);
					SelectObject(pongDC, objBrush);
					ball = UpdateBall(ball.left+xDirection, ball.top-5);
					Ellipse(pongDC, ball.left, ball.top, ball.right, ball.bottom);
					UpdateWindow(hWnd);
					if(ball.top <= 10)
					{
						if((ball.right+5 < comppad.left) || (ball.left > comppad.right+5))
						{
							SelectObject(pongDC, bgPen);
							SelectObject(pongDC, bgBrush);
							Ellipse(pongDC, ball.left, ball.top, ball.right, ball.bottom);
							UpdateWindow(hWnd);

							SelectObject(pongDC, objPen);
							SelectObject(pongDC, objBrush);
							
							ball = UpdateBall(ball.left+xDirection, ball.top-5);
							Ellipse(pongDC, ball.left, ball.top, ball.right, ball.bottom);
							UpdateWindow(hWnd);
							scoreH++;
							FillRect(pongDC, &humpad, bgBrush);
							humpad = UpdatePaddle(125, 250);
							FillRect(pongDC, &humpad, objBrush);
							FillRect(pongDC, &comppad, bgBrush);
							comppad = UpdatePaddle(125, 1);
							FillRect(pongDC, &comppad, objBrush);
							SelectObject(pongDC, bgPen);
							SelectObject(pongDC, bgBrush);
							Ellipse(pongDC, ball.left, ball.top, ball.right, ball.bottom);
							ball = UpdateBall(125, 240);
							
							SelectObject(pongDC, objPen);
							SelectObject(pongDC, objBrush);
							Ellipse(pongDC, ball.left, ball.top, ball.right, ball.bottom);
							sprintf(scoreTxt, "Human: %d\tComputer: %d", scoreH, scoreC);
							SetWindowText(hScore, scoreTxt);
							started = 0;
						}
						else
						{
							if(ball.right-comppad.left > 0)
							{
								if(ball.right-comppad.left <= 5)
								{
									xDirection = -3;
								}
								else if(ball.right-comppad.left <= 10 && ball.right-comppad.left > 5)
								{
									xDirection = -2;
								}
								else if(ball.right-comppad.left <= 15 && ball.right-comppad.left > 10)
								{
									xDirection = -1;
								}
								else if(ball.right-comppad.left <= 25 && ball.right-comppad.left > 20)
								{
									xDirection = 1;
								}
								else if(ball.right-comppad.left <= 30 && ball.right-comppad.left > 25)
								{
									xDirection = 2;
								}
								else if(ball.right-comppad.left >= 35)
								{
									xDirection = 3;
								}
								else
								{
									xDirection = 0;
								}
							}
							yDirection = 1;
						}
					}
				}
			}
			Sleep(65);
		}
	}
	return Msg.wParam;
}

LRESULT CALLBACK WndProc(HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam)
{
	HDC pongDC = GetDC(hWnd);
	HPEN objPen = CreatePen(PS_SOLID, 1, 0x00C0C0C0);
	switch(Msg)
	{
	case WM_CLOSE:
		DestroyWindow(hWnd);
		break;
	case WM_DESTROY:
		PostQuitMessage(0);
		break;
	case WM_KEYDOWN:
		switch((int)wParam)
		{
			case VK_LEFT:
				{
					if(started)
					{
						SelectObject(pongDC, objPen);
						if(humpad.left-10 <= 0)
						{
							break;
						}
						FillRect(pongDC, &humpad, CreateSolidBrush(RGB(0x00, 0x00, 0x00)));
						
						humpad = UpdatePaddle(humpad.left-8, humpad.top);
						FillRect(pongDC, &humpad, CreateSolidBrush(RGB(0xC0, 0xC0, 0xC0)));
					}
				}
			break;
			case VK_RIGHT:
				{
					if(started)
					{
						SelectObject(pongDC, objPen);
						if(humpad.left+10 >= 250)
						{
							break;
						}
						FillRect(pongDC, &humpad, CreateSolidBrush(RGB(0x00, 0x00, 0x00)));
						
						humpad = UpdatePaddle(humpad.left+8, humpad.top);
						FillRect(pongDC, &humpad, CreateSolidBrush(RGB(0xC0, 0xC0, 0xC0)));
					}
				}
				break;
			case VK_SPACE:
				{
					if(!started)
					{
						started = 1;
					}

				}
			break;
			default:
				RedrawWindow(hWnd, NULL, NULL, RDW_INVALIDATE);
				return DefWindowProc(hWnd, WM_KEYDOWN, wParam, lParam);
		}
	default:
		return DefWindowProc(hWnd, Msg, wParam, lParam);
		break;
	}
	return 0;
}
 
Win32 Pong Game
Get a C/C++ compiler that supports Windows API, (Dev-C++ and Visual Studio Express Editions are free) and compile/run that code.
 
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