vc配合sdl编写贪吃蛇游戏

     最近研究了下sdl，发现sdl写图形是个好东西，比起vc下GDI的直接绘图要方便很多，看了下sdl的教程，花了一下午的时间，写了个贪吃蛇小游戏。#include <iostream> #include "SDL/SDL.h" #include<vector>#include<time.h>using namespace std;struct bmp{SDL_Surface* b;SDL_Rect r;bmp *next;int flag;};struct point{int x;int y;int flag;};SDL_Surface *screen; bmp *start=0,*end=0;int dtime=200;int c=1;char text[50];SDL_Rect snake;SDL_Surface* sbmp;SDL_Thread *thread;// Entry pointint move(void* lparam){while(1){//SDL_Delay(dtime);SDL_FillRect(screen,0,SDL_MapRGB(screen->format,100,100,100));bmp *t=start;while(t){SDL_BlitSurface(t->b,0,screen,&t->r);t=t->next;}SDL_BlitSurface(sbmp,0,screen,&snake);sprintf(text,"game process:%d qq:395414574",c);SDL_WM_SetCaption(text,0);SDL_Flip(screen);}return 0;} int main(int argc, char *argv[]) { srand(time(0));snake.x=rand()%640/10*10;snake.y=rand()%480/10*10;sbmp=SDL_LoadBMP("C://Inetpub//wwwroot//sxx//else//2.bmp");vector<point> p;bmp *a=new bmp;a->next=NULL;a->r.x=0;a->r.y=60;a->flag=2;start=a;bmp *temp=start;for(int i=0;i<6;i++){bmp *a=new bmp;a->next=NULL;a->r.x=0;a->flag=2;a->r.y=60-(i+1)*10;temp->next=a;temp=temp->next;if(i==5){end=a;}} // Initialize SDL's subsystems - in this case, only video. if ( SDL_Init(SDL_INIT_EVERYTHING) < 0 ) { fprintf(stderr, "Unable to init SDL: %s/n", SDL_GetError()); exit(1); } // Register SDL_Quit to be called at exit; makes sure things are // cleaned up when we quit. atexit(SDL_Quit); // Attempt to create a 640x480 window with 32bit pixels. screen = SDL_SetVideoMode(640, 480, 32,SDL_SWSURFACE); // If we fail, return error. if ( screen == NULL ) { fprintf(stderr, "Unable to set 640x480 video: %s/n", SDL_GetError()); exit(1); } temp=start;while(temp){temp->b=SDL_LoadBMP("C://Inetpub//wwwroot//sxx//else//1.bmp");temp=temp->next;}bmp *t; // Main loop: loop forever. int ith=1; while (1) { // Render stuff // Poll for events, and handle the ones we care about. SDL_Event event; while (SDL_PollEvent(&event)) { switch (event.type) { case SDL_KEYDOWN:cout<<p.size()<<endl;t=start;point *pp;switch(event.key.keysym.sym){case SDLK_UP:if(t->flag==3 || t->flag==4){t->flag=1;pp=new point;pp->x=t->r.x;pp->y=t->r.y;pp->flag=1;p.push_back(*pp);}break;case SDLK_DOWN:if(t->flag==3 || t->flag==4){t->flag=2;pp=new point;pp->x=t->r.x;pp->y=t->r.y;pp->flag=2;p.push_back(*pp);}break;case SDLK_LEFT:if(t->flag==1 || t->flag==2){t->flag=3;pp=new point;pp->x=t->r.x;pp->y=t->r.y;pp->flag=3;p.push_back(*pp);}break;case SDLK_RIGHT:if(t->flag==1 || t->flag==2){t->flag=4;pp=new point;pp->x=t->r.x;pp->y=t->r.y;pp->flag=4;p.push_back(*pp);}break;}delete pp;break; case SDL_KEYUP: // If escape is pressed, return (and thus, quit) if (event.key.keysym.sym == SDLK_ESCAPE){SDL_KillThread(thread); return 0; } break; case SDL_QUIT: SDL_KillThread(thread); return(0); break; } }t=start;while(t){if(t->flag==1){t->r.y-=10;}if(t->flag==2){t->r.y+=10;}if(t->flag==3){t->r.x-=10;}if(t->flag==4){t->r.x+=10;}for(int i=0;i<p.size();i++){if(t->r.x==p[i].x && t->r.y==p[i].y){t->flag=p[i].flag;if(t==end){cout<<end->flag<<" ";if(p.size()>0){p.erase(p.begin());}}}}t=t->next;}if(start->r.x<0 || start->r.y<0 || start->r.x>=640 || start->r.y>=480){cout<<"sx"<<endl;return 0;}t=start->next;while(t){if(start->r.x==t->r.x && start->r.y==t->r.y && start->flag==3 && (t->flag==2 || t->flag==1)){cout<<"sx1"<<endl;SDL_KillThread(thread);return 0;}if(start->r.x==t->r.x && start->r.y==t->r.y && start->flag==1 && (t->flag==4 || t->flag==3)){cout<<"sx2"<<endl;SDL_KillThread(thread);return 0;}if(start->r.x==t->r.x && start->r.y==t->r.y+10 && start->flag==2 && (t->flag==4 || t->flag==3)){cout<<"sx3"<<endl;SDL_KillThread(thread);return 0;}if(start->r.x==t->r.x+10 && start->r.y==t->r.y && start->flag==4 && (t->flag==2 || t->flag==1)){cout<<"sx4"<<endl;SDL_KillThread(thread);return 0;}t=t->next;}if(start->r.x==snake.x && start->r.y==snake.y){c++;dtime-=10;bmp *nb=new bmp;nb->b=SDL_LoadBMP("C://Inetpub//wwwroot//sxx//else//1.bmp");nb->flag=end->flag;nb->next=NULL;if(end->flag==1){nb->r.x=end->r.x;nb->r.y=end->r.y+10;}if(end->flag==2){nb->r.x=end->r.x;nb->r.y=end->r.y-10;}if(end->flag==3){nb->r.x=end->r.x+10;nb->r.y=end->r.y;}if(end->flag==4){nb->r.x=end->r.x-10;nb->r.y=end->r.y;}end->next=nb;end=nb;while(1){a:snake.x=rand()%640/10*10;snake.y=rand()%480/10*10;t=start;while(t){if(t->r.x==snake.x && t->r.y==snake.y){goto a;}t=t->next;}break;

     发现这个小游戏还是有不足之处，比如不能同时响应多次连续按键，估计是按钮消息的传达问题，不过自己能写个小游戏，还是小小高兴了把。