奥运贪吃蛇游戏源代码

#include <stdio.h> #include <stdlib.h> #include <SDL/SDL.h> #include<SDL/SDL_image.h> #include<time.h> #include<string.h> #include<SDL/SDL_thread.h> #include<SDL/SDL_mutex.h> #include <windows.h> /*全局变量:全部坐标,图片加载指针*/ SDL_Surface *screen, *image; SDL_Surface *back_image; SDL_Rect back_dest; int start=-1;//开始状态,1开始0初始-1暂停 int score;//分数 int team_long=0;//队伍长度初始化 char picName[15];//随机图片名字 int rapid;//速度 int d;//碰撞标记 Uint32 now; struct team{ struct SDL_Rect dest; struct SDL_Rect old_dest[13]; int dirction; int old_dirction[13]; char picName[15]; }; struct team item[37],rand_item[5]; //方向坐标转换 SDL_Rect head_dest(int i){ SDL_Rect dest; dest.w=dest.h=35; dest.y=0; if(i==0)i=3; switch(i){ case 1:dest.x=0;break; case 2:dest.x=35;break; case 3:dest.x=70;break; case 4:dest.x=105;break; default:break; } return dest; } //加锁 void Slock(SDL_Surface *lock){ if(SDL_MUSTLOCK(lock)){ if(SDL_LockSurface(lock)<0){ return; } } } /*解锁*/ void Sulock(SDL_Surface *lock){ if(SDL_MUSTLOCK(lock)){ SDL_UnlockSurface(lock); } } /*产生随机图片名称,存入picName[]中*/ void rand_picName(){ int i; FILE *fp; if((fp=fopen("pic.list","r"))==NULL){ printf("Can't open pic_list");} i=(int)rand()%36+1; fseek(fp,i*15,SEEK_SET); fgets(picName,15,fp); // rewind(fp,0,SEEK_SET);//指针归文件头位置 fclose(fp); } /*输出错误函数*/ void print_error(){ fprintf(stderr,"no is :%s\n",SDL_GetError()); atexit(SDL_Quit); } /*加载图片到内存中*/ SDL_Surface *load_image(char *filename){ SDL_Surface *loadedImage = NULL; SDL_Surface *optimizedImage = NULL; loadedImage = IMG_Load(filename); if(loadedImage!=NULL){ optimizedImage = SDL_DisplayFormat(loadedImage); SDL_FreeSurface(loadedImage); } return optimizedImage; } /*把内存中图片显示到屏幕中*/ void apply_surface(int x,int y,SDL_Surface *source, SDL_Surface *destination){ SDL_Rect offset; offset.x=x; offset.y=y; Slock(destination); SDL_BlitSurface(source,NULL,destination,&offset); Sulock(screen); SDL_FreeSurface(destination); } /*游戏区范围设置*/ SDL_Rect bump(SDL_Rect image_dest){ if(image_dest.x>500) image_dest.x=500; if(image_dest.x<0) image_dest.x=0; if(image_dest.y<0) image_dest.y=0; if(image_dest.y>380) image_dest.y=380; return image_dest; } /*产生随机坐标*/ SDL_Rect rand_dest(){ SDL_Rect dest; int i; while(1){ dest.x=(int)(rand()%500); dest.y=(int)(rand()%380); dest.w=35; dest.h=35; for(i=0;i<=team_long;i++){ if((dest.x>item[i].dest.x-35)&&(dest.x<(item[i].dest.x+35))&&(dest.y>item[i].dest.y-35)&&(dest.y<(item[i].dest.y+35))) break; if(i==team_long)return dest; } } } /*产生随机图片到屏幕中*/ void rand_image(){ int i,j; SDL_Surface *rand_image; SDL_Rect dest; back_dest.w=35;back_dest.h=35;//70,70 back_dest.x=560; back_dest.y=260; //560,180 i=0; while(i<5) { rand_picName(); strcpy(rand_item[i].picName,picName); rand_item[i].dest=rand_dest(); if(i!=0) { for(j=0;j<i;j++) { if(strcmp(rand_item[i].picName,rand_item[j].picName)==0||(rand_item[j].dest.x<rand_item[i].dest.x+35&&rand_item[j].dest.x>rand_item[i].dest.x-35&&rand_item[j].dest.y<rand_item[i].dest.y+35&&rand_item[j].dest.y>rand_item[i].dest.y-35)) { i=0; continue; } } } i++; } for(i=0;i<5;i++){ // rand_item[i].dest=rand_dest(); // rand_picName(); // strcpy(rand_item[i].picName,picName); rand_image=load_image(rand_item[i].picName); dest=head_dest(3); Slock(screen); SDL_BlitSurface(rand_image,&dest,screen,&rand_item[i].dest); if(i==2) SDL_BlitSurface(rand_image,&dest,screen,&back_dest); SDL_Flip(screen); SDL_FreeSurface(rand_image); Sulock(screen); } } /*移动控制*/ void move(){ Uint8 *keys = SDL_GetKeyState(NULL); int DOWN=1,UP=2,LEFT=3,RIGHT=4; if(keys[SDLK_DOWN]&&item[0].dirction!=UP||item[0].dirction==DOWN){ item[0].dest.y+=3; item[0].dirction=DOWN; } if(keys[SDLK_UP]&&item[0].dirction!=DOWN||item[0].dirction==UP){ item[0].dest.y-=3; item[0].dirction=UP; } if(keys[SDLK_LEFT]&&item[0].dirction!=RIGHT||item[0].dirction==LEFT) { item[0].dest.x-=3; item[0].dirction=LEFT; } if(keys[SDLK_RIGHT]&&item[0].dirction!=LEFT||item[0].dirction==RIGHT){ item[0].dest.x+=3; item[0].dirction=RIGHT; } SDL_GetKeyState(NULL); } /*碰撞检测*/ int pic_bump(){ int i,a=-1; SDL_Rect dest=item[0].dest; for(i=0;i<5;i++){ if((dest.x-30)<rand_item[i].dest.x&&(dest.x+30>rand_item[i].dest.x)){ if((dest.y-30)<rand_item[i].dest.y&&(dest.y+30>rand_item[i].dest.y)){ a=i; break; } } } return a; } /*咬尾检测*/ int head_bump(int o){ int i; SDL_Rect dest=item[0].dest; if(o==0){ for(i=3;i<=team_long;i++){ if((dest.x>item[i].dest.x-23)&&(dest.x<(item[i].dest.x+23))&&(dest.y>item[i].dest.y-23)&&(dest.y<(item[i].dest.y+23))){ score-=20; if(i==team_long){ item[0].dest=item[i].old_dest[12]; item[0].dirction=item[i].old_dirction[12]; o=300; break; } else{ team_long=i; break; } } } } return o; } /*身体加长*/ void longer(){ int i; SDL_Rect back_dest,dest; back_dest.h=35; back_dest.w=35; Slock(screen); for(i=team_long;i>=1;i--){ item[i].dest=item[i-1].old_dest[12]; item[i].dirction=item[i-1].old_dirction[12]; image=load_image(item[i].picName); dest=head_dest(item[i].dirction); SDL_BlitSurface(image,&dest,screen,&item[i].dest); SDL_FreeSurface(image); } image=load_image("./pics/s0.gif");//加载火炬手 dest=head_dest(item[0].dirction); SDL_BlitSurface(image,&dest,screen,&item[0].dest); SDL_FreeSurface(image); SDL_Flip(screen); Sulock(screen); } /*去除残留影象*/ void clear(){ int i,j; back_dest.w=35; back_dest.h=35; for(i=0;i<=team_long;i++){ back_dest=item[i].dest; Slock(screen); SDL_BlitSurface(back_image,&back_dest,screen,&back_dest); Sulock(screen); item[i].old_dest[0]=item[i].dest; item[i].old_dirction[0]=item[i].dirction; for(j=12;j>0;j--){ item[i].old_dest[j]=item[i].old_dest[j-1]; item[i].old_dirction[j]=item[i].old_dirction[j-1]; } } } //加载放大要选择的图片 //int right_item(){ // SDL_Rect dest; // SDL_Surface *rand_image; // int i,j,h; // rand_image=load_image(rand_item[2].picName); // Slock(screen); // dest.w=35;dest.h=35;dest.y=0; // dest.x=rand_item[2].dest.x; // back_dest.w=50;back_dest.h=50;//70,70 // back_dest.x=5; back_dest.y=5; //560,180 // SDL_BlitSurface(back_image,&back_dest,screen,&back_dest); //// SDL_BlitSurface(rand_image,&rand_item[2].dest,screen,&back_dest); // SDL_BlitSurface(rand_image,&dest,screen,&back_dest); //// for(h=0;h<35;h++){ //// for(i=0;i<35;i++){ //// dest.x=70+i; dest.y=h;dest.w=1; dest.h=1; //// back_dest.w=1;back_dest.h=1; //// for(j=0;j<2;j++){ //// back_dest.x=560+i*2+j; back_dest.y=180+h*2; //// SDL_BlitSurface(rand_image,&dest,screen,&back_dest); //// back_dest.x=560+i*2+j; back_dest.y=180+h*2+1; //// SDL_BlitSurface(rand_image,&dest,screen,&back_dest); //// } //// } //// } // SDL_Flip(screen); // SDL_FreeSurface(rand_image); // Sulock(screen); // return 0; //} /*初始化*/ void initialize(){ SDL_Rect dest; back_dest.x=0; back_dest.y=0; back_image=load_image("./pics/game.jpg");//加载背影(主画面) SDL_BlitSurface(back_image,NULL,screen,NULL); image=load_image("./pics/s0.gif");//加载火炬手 dest=head_dest(item[0].dirction); score=0; item[0].dirction=4; item[0].dest.x=150; item[0].dest.y=50; item[0].dest.w=image->w; item[0].dest.h=image->h; SDL_Bl