why does this program hang? (sdl,c++)

game mercenary · 2005-04-26T18:09:32

the window doesnt even come up, all I get is a console window then it crashed. main doesnt even do one command before it hangs. main.cpp /* this is the course of the includes declarations >> init >> keyhandle >> draw >> main that is also the order the game is going to go in */ #include "draw.h" int main(int argc, char *argv[]) { game main; main.init(); while(main.done ==0) { main.gameloop(); } return 0; } int game::gameloop(){ game main; draw(); keyhandle(); SDL_Flip(main.screen); } draw.h #include "keyhandle.h" int drawIMG(SDL_Surface* image,int x,int y,int w,int h) { game game; SDL_Rect dest; dest.x = x; dest.y = y; dest.w = w; dest.h = h; SDL_BlitSurface(image,NULL,game.screen,&dest); } int game::draw() { game game; drawIMG(game.you.surface,game.you.xpos,game.you.ypos,game.you.xsize,game.you.ysize); } keyhandle.h #include "init.h" int game::keyhandle() { SDL_Event event; while ( SDL_PollEvent(&event) ) { if ( event.type == SDL_QUIT ) { done++; } if ( event.type == SDL_KEYDOWN ) { if ( event.key.keysym.sym == SDLK_ESCAPE ) { done++; } } } Uint8 *keys; keys = SDL_GetKeyState(NULL); if ( keys[SDLK_UP] ) { you.yspeed = -10; } else you.yspeed =0; if ( keys[SDLK_DOWN]) { you.yspeed = 10; } else you.yspeed=0; if ( keys[SDLK_LEFT] ) { you.xspeed = -10; } else you.xspeed = 0; if ( keys[SDLK_RIGHT] ) { you.xspeed = 10; } else you.xspeed = 0; if ( keys[SDLK_ESCAPE] ) {done++;} } init.h #include "declarations.h" int game::init() { int loop1,loop2,xtilepos,ytilepos; xtilepos = -10; ytilepos = -10; //set the screen up for(loop1=0;loop1<81;loop1++) { for(loop2=0;loop2<61;loop2++) { back[loop1][loop2].surface = SDL_LoadBMP("images/backtile.bmp"); back[loop1][loop2].xpos= xtilepos; back[loop1][loop2].ypos= ytilepos; back[loop1][loop2].order=0; back[loop1][loop2].xsize=10; back[loop1][loop2].ysize=10; xtilepos+=10; xtilepos=0; ytilepos+=10; } } //init you you.surface = SDL_LoadBMP("images/you.bmp"); //init the window screen = SDL_SetVideoMode(800 ,600,32,SDL_HWSURFACE|SDL_DOUBLEBUF); SDL_Init(SDL_INIT_VIDEO); } declarations.h #include <sdl.h> #include <iostream> using namespace std; #include <stdio.h> struct map_object { int xpos,ypos,xsize,ysize,order; SDL_Surface *surface; bool hit; }; struct weapon { int xpos,ypos,xsize,ysize,order,damage,xspeed,yspeed; SDL_Surface *surface; bool hit, draw; }; struct player { int xpos,ypos,xsize,ysize,order,damage,xspeed,yspeed; SDL_Surface *surface; weapon bullet; bool hit,draw; }; class game { public: //function declaritons int init(),keyhandle(),gameloop(),draw(); //game variables SDL_Surface *screen; map_object back[80][60]; player you; int done; }; I ran it in debug mode (dev-c++) and it said "an acess violation (segmentation fault) raised in your program"