windows游戏编程大师技巧源码

// T3DLIB1.CPP - Game Engine Part I // INCLUDES /////////////////////////////////////////////// #define WIN32_LEAN_AND_MEAN // has the GUID library been included? //#ifndef INITGUID //#define INITGUID //#endif #include <windows.h> // include important windows stuff #include <windowsx.h> #include <mmsystem.h> #include <iostream.h> // include important C/C++ stuff #include <conio.h> #include <stdlib.h> #include <malloc.h> #include <memory.h> #include <string.h> #include <stdarg.h> #include <stdio.h> #include <math.h> #include <io.h> #include <fcntl.h> #include <sys/timeb.h> #include <time.h> #include <ddraw.h> // directX includes #include "T3DLIB1.H" // DEFINES //////////////////////////////////////////////// // TYPES ////////////////////////////////////////////////// // PROTOTYPES ///////////////////////////////////////////// // EXTERNALS ///////////////////////////////////////////// extern HWND main_window_handle; // save the window handle extern HINSTANCE main_instance; // save the instance // GLOBALS //////////////////////////////////////////////// FILE *fp_error = NULL; // general error file char error_filename[80]; // error file name // notice that interface 7.0 is used on a number of interfaces LPDIRECTDRAW7 lpdd = NULL; // dd object LPDIRECTDRAWSURFACE7 lpddsprimary = NULL; // dd primary surface LPDIRECTDRAWSURFACE7 lpddsback = NULL; // dd back surface LPDIRECTDRAWPALETTE lpddpal = NULL; // a pointer to the created dd palette LPDIRECTDRAWCLIPPER lpddclipper = NULL; // dd clipper for back surface LPDIRECTDRAWCLIPPER lpddclipperwin = NULL; // dd clipper for window PALETTEENTRY palette[MAX_COLORS_PALETTE]; // color palette PALETTEENTRY save_palette[MAX_COLORS_PALETTE]; // used to save palettes DDSURFACEDESC2 ddsd; // a direct draw surface description struct DDBLTFX ddbltfx; // used to fill DDSCAPS2 ddscaps; // a direct draw surface capabilities struct HRESULT ddrval; // result back from dd calls UCHAR *primary_buffer = NULL; // primary video buffer UCHAR *back_buffer = NULL; // secondary back buffer int primary_lpitch = 0; // memory line pitch for primary buffer int back_lpitch = 0; // memory line pitch for back buffer BITMAP_FILE bitmap8bit; // a 8 bit bitmap file BITMAP_FILE bitmap16bit; // a 16 bit bitmap file BITMAP_FILE bitmap24bit; // a 24 bit bitmap file DWORD start_clock_count = 0; // used for timing int windowed_mode = FALSE; // tracks if dd is windowed or not // these defined the general clipping rectangle int min_clip_x = 0, // clipping rectangle max_clip_x = (SCREEN_WIDTH-1), min_clip_y = 0, max_clip_y = (SCREEN_HEIGHT-1); // these are overwritten globally by DDraw_Init() int screen_width = SCREEN_WIDTH, // width of screen screen_height = SCREEN_HEIGHT, // height of screen screen_bpp = SCREEN_BPP, // bits per pixel screen_windowed = 0; // is this a windowed app? int dd_pixel_format = DD_PIXEL_FORMAT565; // default pixel format int window_client_x0 = 0; // used to track the starting (x,y) client area for int window_client_y0 = 0; // for windowed mode directdraw operations // storage for our lookup tables float cos_look[361]; // 1 extra element so we can store 0-360 inclusive float sin_look[361]; // function ptr to RGB16 builder USHORT (*RGB16Bit)(int r, int g, int b) = NULL; // FUNCTIONS ////////////////////////////////////////////// USHORT RGB16Bit565(int r, int g, int b) { // this function simply builds a 5.6.5 format 16 bit pixel // assumes input is RGB 0-255 each channel r>>=3; g>>=2; b>>=3; return(_RGB16BIT565((r),(g),(b))); } // end RGB16Bit565 ////////////////////////////////////////////////////////// USHORT RGB16Bit555(int r, int g, int b) { // this function simply builds a 5.5.5 format 16 bit pixel // assumes input is RGB 0-255 each channel r>>=3; g>>=3; b>>=3; return(_RGB16BIT555((r),(g),(b))); } // end RGB16Bit555 ////////////////////////////////////////////////////////// inline void Mem_Set_WORD(void *dest, USHORT data, int count) { // this function fills or sets unsigned 16-bit aligned memory // count is number of words _asm { mov edi, dest ; edi points to destination memory mov ecx, count ; number of 16-bit words to move mov ax, data ; 16-bit data rep stosw ; move data } // end asm } // end Mem_Set_WORD /////////////////////////////////////////////////////////// inline void Mem_Set_QUAD(void *dest, UINT data, int count) { // this function fills or sets unsigned 32-bit aligned memory // count is number of quads _asm { mov edi, dest ; edi points to destination memory mov ecx, count ; number of 32-bit words to move mov eax, data ; 32-bit data rep stosd ; move data } // end asm } // end Mem_Set_QUAD ////////////////////////////////////////////////////////// int Create_BOB(BOB_PTR bob, // the bob to create int x, int y, // initial posiiton int width, int height, // size of bob int num_frames, // number of frames int attr, // attrs int mem_flags, // memory flags in DD format USHORT color_key_value, // default color key int bpp) // bits per pixel { // Create the BOB object, note that all BOBs // are created as offscreen surfaces in VRAM as the // default, if you want to use system memory then // set flags equal to: // DDSCAPS_SYSTEMMEMORY // for video memory you can create either local VRAM surfaces or AGP // surfaces via the second set of constants shown below in the regular expression // DDSCAPS_VIDEOMEMORY | (DDSCAPS_NONLOCALVIDMEM | DDSCAPS_LOCALVIDMEM ) DDSURFACEDESC2 ddsd; // used to create surface int index; // looping var // set state and attributes of BOB bob->state = BOB_STATE_ALIVE; bob->attr = attr; bob->anim_state = 0; bob->counter_1 = 0; bob->counter_2 = 0; bob->max_count_1 = 0; bob->max_count_2 = 0; bob->curr_frame = 0; bob->num_frames = num_frames; bob->bpp = bpp; bob->curr_animation = 0; bob->anim_counter = 0; bob->anim_index = 0; bob->anim_count_max = 0; bob->x = x; bob->y = y; bob->xv = 0; bob->yv = 0; // set dimensions of the new bitmap surface bob->width = width; bob->height = height; // set all images to null for (index=0; index<MAX_BOB_FRAMES; index++) bob->images[index] = NULL; // set all animations to null for (index=0; index<MAX_BOB_ANIMATIONS; index++) bob->animations[index] = NULL; #if 0 // make sure surface width is a multiple of 8, some old version of dd like that // now, it's unneeded... bob->width_fill = ((width%8!=0) ? (8-width%8) : 0); Write_Error("\nCreate BOB: width_fill=%d",bob->width_fill); #endif // now create each surface for (index=0; index<bob->num_frames; index++) { // set to access caps, width, and height memset(&ddsd,0,sizeof(ddsd)); ddsd.dwSize = sizeof(ddsd); ddsd.dwFlags = DDSD_CAPS | DDSD_WIDTH | DDSD_HEIGHT; ddsd.dwWidth = bob->width + bob->width_fill; ddsd.dwHeight = bob->height; // set surface to offscreen plain ddsd.ddsCaps.dwCaps = DDSCAPS_OFFSCREENPLAIN | mem_flags; // cr