www.pudn.com > 3DÓÎÏ·Source.rar > freakout.cpp
// FREAKOUT.CPP - break game demo // INCLUDES /////////////////////////////////////////////////// #define WIN32_LEAN_AND_MEAN // include all macros #define INITGUID // include all GUIDs #include// include important windows stuff #include #include #include // include important C/C++ stuff #include #include #include #include #include #include #include #include #include #include #include // directX includes #include "blackbox.h" // game library includes // DEFINES //////////////////////////////////////////////////// // defines for windows #define WINDOW_CLASS_NAME "WIN3DCLASS" // class name #define WINDOW_WIDTH 640 // size of window #define WINDOW_HEIGHT 480 // states for game loop #define GAME_STATE_INIT 0 #define GAME_STATE_START_LEVEL 1 #define GAME_STATE_RUN 2 #define GAME_STATE_SHUTDOWN 3 #define GAME_STATE_EXIT 4 // block defines #define NUM_BLOCK_ROWS 6 #define NUM_BLOCK_COLUMNS 8 #define BLOCK_WIDTH 64 #define BLOCK_HEIGHT 16 #define BLOCK_ORIGIN_X 8 #define BLOCK_ORIGIN_Y 8 #define BLOCK_X_GAP 80 #define BLOCK_Y_GAP 32 // paddle defines #define PADDLE_START_X (SCREEN_WIDTH/2 - 16) #define PADDLE_START_Y (SCREEN_HEIGHT - 32); #define PADDLE_WIDTH 32 #define PADDLE_HEIGHT 8 #define PADDLE_COLOR 191 // ball defines #define BALL_START_Y (SCREEN_HEIGHT/2) #define BALL_SIZE 4 // PROTOTYPES ///////////////////////////////////////////////// // game console int Game_Init(void *parms=NULL); int Game_Shutdown(void *parms=NULL); int Game_Main(void *parms=NULL); // GLOBALS //////////////////////////////////////////////////// HWND main_window_handle = NULL; // save the window handle HINSTANCE main_instance = NULL; // save the instance int game_state = GAME_STATE_INIT; // starting state int paddle_x = 0, paddle_y = 0; // tracks position of paddle int ball_x = 0, ball_y = 0; // tracks position of ball int ball_dx = 0, ball_dy = 0; // velocity of ball int score = 0; // the score int level = 1; // the current level int blocks_hit = 0; // tracks number of blocks hit // this contains the game grid data UCHAR blocks[NUM_BLOCK_ROWS][NUM_BLOCK_COLUMNS]; // FUNCTIONS ////////////////////////////////////////////////// LRESULT CALLBACK WindowProc(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam) { // this is the main message handler of the system PAINTSTRUCT ps; // used in WM_PAINT HDC hdc; // handle to a device context // what is the message switch(msg) { case WM_CREATE: { // do initialization stuff here return(0); } break; case WM_PAINT: { // start painting hdc = BeginPaint(hwnd,&ps); // the window is now validated // end painting EndPaint(hwnd,&ps); return(0); } break; case WM_DESTROY: { // kill the application PostQuitMessage(0); return(0); } break; default:break; } // end switch // process any messages that we didn't take care of return (DefWindowProc(hwnd, msg, wparam, lparam)); } // end WinProc // WINMAIN //////////////////////////////////////////////////// int WINAPI WinMain( HINSTANCE hinstance, HINSTANCE hprevinstance, LPSTR lpcmdline, int ncmdshow) { // this is the winmain function WNDCLASS winclass; // this will hold the class we create HWND hwnd; // generic window handle MSG msg; // generic message HDC hdc; // generic dc PAINTSTRUCT ps; // generic paintstruct // first fill in the window class stucture winclass.style = CS_DBLCLKS | CS_OWNDC | CS_HREDRAW | CS_VREDRAW; winclass.lpfnWndProc = WindowProc; winclass.cbClsExtra = 0; winclass.cbWndExtra = 0; winclass.hInstance = hinstance; winclass.hIcon = LoadIcon(NULL, IDI_APPLICATION); winclass.hCursor = LoadCursor(NULL, IDC_ARROW); winclass.hbrBackground = (HBRUSH)GetStockObject(BLACK_BRUSH); winclass.lpszMenuName = NULL; winclass.lpszClassName = WINDOW_CLASS_NAME; // register the window class if (!RegisterClass(&winclass)) return(0); // create the window, note the use of WS_POPUP if (!(hwnd = CreateWindow(WINDOW_CLASS_NAME, // class "WIN3D Game Console", // title WS_POPUP | WS_VISIBLE, 0,0, // initial x,y GetSystemMetrics(SM_CXSCREEN), // intial width GetSystemMetrics(SM_CYSCREEN), // initial height NULL, // handle to parent NULL, // handle to menu hinstance,// instance NULL))) // creation parms return(0); // hide mouse ShowCursor(FALSE); // save the window handle and instance in a global main_window_handle = hwnd; main_instance = hinstance; // perform all game console specific initialization Game_Init(); // enter main event loop while(1) { if (PeekMessage(&msg,NULL,0,0,PM_REMOVE)) { // test if this is a quit if (msg.message == WM_QUIT) break; // translate any accelerator keys TranslateMessage(&msg); // send the message to the window proc DispatchMessage(&msg); } // end if // main game processing goes here Game_Main(); } // end while // shutdown game and release all resources Game_Shutdown(); // show mouse ShowCursor(TRUE); // return to Windows like this return(msg.wParam); } // end WinMain // T3DX GAME PROGRAMMING CONSOLE FUNCTIONS //////////////////// int Game_Init(void *parms) { // this function is where you do all the initialization // for your game // return success return(1); } // end Game_Init /////////////////////////////////////////////////////////////// int Game_Shutdown(void *parms) { // this function is where you shutdown your game and // release all resources that you allocated // return success return(1); } // end Game_Shutdown /////////////////////////////////////////////////////////////// void Init_Blocks(void) { // initialize the block field for (int row=0; row < NUM_BLOCK_ROWS; row++) for (int col=0; col < NUM_BLOCK_COLUMNS; col++) blocks[row][col] = row*16+col*3+16; } // end Init_Blocks /////////////////////////////////////////////////////////////// void Draw_Blocks(void) { // this function draws all the blocks in row major form int x1 = BLOCK_ORIGIN_X, // used to track current position y1 = BLOCK_ORIGIN_Y; // draw all the blocks for (int row=0; row < NUM_BLOCK_ROWS; row++) { // reset column position x1 = BLOCK_ORIGIN_X; // draw this row of blocks for (int col=0; col < NUM_BLOCK_COLUMNS; col++) { // draw next block (if there is one) if (blocks[row][col]!=0) { // draw block Draw_Rectangle(x1-4,y1+4, x1+BLOCK_WIDTH-4,y1+BLOCK_HEIGHT+4,0); Draw_Rectangle(x1,y1,x1+BLOCK_WIDTH, y1+BLOCK_HEIGHT,blocks[row][col]); } // end if // advance column position x1+=BLOCK_X_GAP; } // end for col // advance to next row position y1+=BLOCK_Y_GAP; } // end for row } // end Draw_Blocks /////////////////////////////////////////////////////////////// void Process_Ball(void) { // this function tests if the ball has hit a block or the paddle // if so, the ball is bounced and the block is removed from // the playfield note: very cheesy collision algorithm :) // first test for ball block collisions // the algorithm basically tests the ball against each // block's bounding box this is inefficient, but easy to // implement, later we'll see a better way int x1 = BLOCK_ORIGIN_X, // current rendering position y1 = BLOCK_ORIGIN_Y; int ball_cx = ball_x+(BALL_SIZE/2), // computer center of ball ball_cy = ball_y+(BALL_SIZE/2); // test of the ball has hit the paddle if (ball_y > (SCREEN_HEIGHT/2) && ball_dy > 0) { // extract leading edge of ball int x = ball_x+(BALL_SIZE/2); int y = ball_y+(BALL_SIZE/2); // test for collision with paddle if ((x >= paddle_x && x <= paddle_x+PADDLE_WIDTH) && (y >= paddle_y && y <= paddle_y+PADDLE_HEIGHT)) { // reflect ball ball_dy=-ball_dy; // push ball out of paddle since it made contact ball_y+=ball_dy; // add a little english to ball based on motion of paddle if (KEY_DOWN(VK_RIGHT)) ball_dx-=(rand()%3); else if (KEY_DOWN(VK_LEFT)) ball_dx+=(rand()%3); else ball_dx+=(-1+rand()%3); // test if there are no blocks, if so send a message // to game loop to start another level if (blocks_hit >= (NUM_BLOCK_ROWS*NUM_BLOCK_COLUMNS)) { game_state = GAME_STATE_START_LEVEL; level++; } // end if // make a little noise MessageBeep(MB_OK); // return return; } // end if } // end if // now scan thru all the blocks and see of ball hit blocks for (int row=0; row < NUM_BLOCK_ROWS; row++) { // reset column position x1 = BLOCK_ORIGIN_X; // scan this row of blocks for (int col=0; col < NUM_BLOCK_COLUMNS; col++) { // if there is a block here then test it against ball if (blocks[row][col]!=0) { // test ball against bounding box of block if ((ball_cx > x1) && (ball_cx < x1+BLOCK_WIDTH) && (ball_cy > y1) && (ball_cy < y1+BLOCK_HEIGHT)) { // remove the block blocks[row][col] = 0; // increment global block counter, so we know // when to start another level up blocks_hit++; // bounce the ball ball_dy=-ball_dy; // add a little english ball_dx+=(-1+rand()%3); // make a little noise MessageBeep(MB_OK); // add some points score+=5*(level+(abs(ball_dx))); // that's it -- no more block return; } // end if } // end if // advance column position x1+=BLOCK_X_GAP; } // end for col // advance to next row position y1+=BLOCK_Y_GAP; } // end for row } // end Process_Ball /////////////////////////////////////////////////////////////// int Game_Main(void *parms) { // this is the workhorse of your game it will be called // continuously in real-time this is like main() in C // all the calls for you game go here! char buffer[80]; // used to print text // what state is the game in? if (game_state == GAME_STATE_INIT) { // initialize everything here graphics DD_Init(SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_BPP); // seed the random number generator // so game is different each play srand(Start_Clock()); // set the paddle position here to the middle bottom paddle_x = PADDLE_START_X; paddle_y = PADDLE_START_Y; // set ball position and velocity ball_x = 8+rand()%(SCREEN_WIDTH-16); ball_y = BALL_START_Y; ball_dx = -4 + rand()%(8+1); ball_dy = 6 + rand()%2; // transition to start level state game_state = GAME_STATE_START_LEVEL; } // end if //////////////////////////////////////////////////////////////// else if (game_state == GAME_STATE_START_LEVEL) { // get a new level ready to run // initialize the blocks Init_Blocks(); // reset block counter blocks_hit = 0; // transition to run state game_state = GAME_STATE_RUN; } // end if /////////////////////////////////////////////////////////////// else if (game_state == GAME_STATE_RUN) { // start the timing clock Start_Clock(); // clear drawing surface for the next frame of animation Draw_Rectangle(0,0,SCREEN_WIDTH-1, SCREEN_HEIGHT-1,200); // move the paddle if (KEY_DOWN(VK_RIGHT)) { // move paddle to right paddle_x+=8; // make sure paddle doesn't go off screen if (paddle_x > (SCREEN_WIDTH-PADDLE_WIDTH)) paddle_x = SCREEN_WIDTH-PADDLE_WIDTH; } // end if else if (KEY_DOWN(VK_LEFT)) { // move paddle to right paddle_x-=8; // make sure paddle doesn't go off screen if (paddle_x < 0) paddle_x = 0; } // end if // draw blocks Draw_Blocks(); // move the ball ball_x+=ball_dx; ball_y+=ball_dy; // keep ball on screen, if the ball hits the edge of // screen then bounce it by reflecting its velocity if (ball_x > (SCREEN_WIDTH - BALL_SIZE) || ball_x < 0) { // reflect x-axis velocity ball_dx=-ball_dx; // update position ball_x+=ball_dx; } // end if // now y-axis if (ball_y < 0) { // reflect y-axis velocity ball_dy=-ball_dy; // update position ball_y+=ball_dy; } // end if else // penalize player for missing the ball if (ball_y > (SCREEN_HEIGHT - BALL_SIZE)) { // reflect y-axis velocity ball_dy=-ball_dy; // update position ball_y+=ball_dy; // minus the score score-=100; } // end if // next watch out for ball velocity getting out of hand if (ball_dx > 8) ball_dx = 8; else if (ball_dx < -8) ball_dx = -8; // test if ball hit any blocks or the paddle Process_Ball(); // draw the paddle and shadow Draw_Rectangle(paddle_x-8, paddle_y+8, paddle_x+PADDLE_WIDTH-8, paddle_y+PADDLE_HEIGHT+8,0); Draw_Rectangle(paddle_x, paddle_y, paddle_x+PADDLE_WIDTH, paddle_y+PADDLE_HEIGHT,PADDLE_COLOR); // draw the ball Draw_Rectangle(ball_x-4, ball_y+4, ball_x+BALL_SIZE-4, ball_y+BALL_SIZE+4, 0); Draw_Rectangle(ball_x, ball_y, ball_x+BALL_SIZE, ball_y+BALL_SIZE, 255); // draw the info sprintf(buffer,"F R E A K O U T Score %d Level %d",score,level); Draw_Text_GDI(buffer, 8,SCREEN_HEIGHT-16, 127); // flip the surfaces DD_Flip(); // sync to 33ish fps Wait_Clock(30); // check of user is trying to exit if (KEY_DOWN(VK_ESCAPE)) { // send message to windows to exit PostMessage(main_window_handle, WM_DESTROY,0,0); // set exit state game_state = GAME_STATE_SHUTDOWN; } // end if } // end if /////////////////////////////////////////////////////////////// else if (game_state == GAME_STATE_SHUTDOWN) { // in this state shut everything down and release resources DD_Shutdown(); // switch to exit state game_state = GAME_STATE_EXIT; } // end if // return success return(1); } // end Game_Main ///////////////////////////////////////////////////////////////