我大一新生，上学期学的c。。。还记得国庆时编了个字符版贪吃蛇！好久没变程序了，，，这次又编了个图形版，，，高手见笑，大家不吝赐教。
/*time:2011/1/28-2011/1/30by:cloudabout: 上下左右：wsad控制，p退出游戏*/
#include <stdio.h>#include <conio.h>#include <bios.h>#include <stdlib.h>#include <graphics.h>#define LEN sizeof(struct Node)
/*定义方向键*/#define UP 'w'#define DOWN 's'#define LEFT 'a'#define RIGHT 'd'#define PAUSE 'l'#define EXIT 'p'
/*定义图框*/#define MaxX 44#define MaxY 44#define XOFFSET 170#define YOFFSET 1#define NODELENGTH 10#define NODEWIDTH 10#define PATH "d://tc201e//bgi"
struct Node{ int x,y; struct Node *Next; }; struct Snack{ struct Node *Head; struct Node *Tail; char Direction; int Length; }; struct Food{ int x,y; }; /*global various*/struct Snack Snack;struct Food Food;int Score;int MoveTimes;int X,Y; /*用于储存蛇尾，方便吃食物*/long Difficulty; /*控制难度*/int PrintRectangle; /*控制绘制边框，防止每次绘制闪动*/int PrintFood; /*控制绘制食物，防止每次绘制闪动*/ /*suborutines*/
int main(){ /*蛇的行为*/ int EatFood(); /*吃食物，变长*/ int Move(); /*移动蛇身*/ int DeadOrNot(); /*判断生死, return 1 means true*/ /*食物的行为*/ int MakeNewFood(); /*出现新食物*/ int ThereIsFood(); /*return 1 means true*/ int FoodInBody(); /*return 1 means true*/ /*运行需要的函数*/ int Init(); /*初始化程序*/ int DrawScreen(); /*绘制屏幕*/ int PlayGame(); int EndOfGame(); Init(); PlayGame(); EndOfGame(); return 0; } Init(){ int gdriver=DETECT,gmode; Score=0;MoveTimes=0; Difficulty=40000; PrintRectangle=1; Snack.Direction=RIGHT; Snack.Length=3; Snack.Head=(struct Node *)malloc(LEN); Snack.Head->x=2;Snack.Head->y=4; Snack.Head->Next=(struct Node *)malloc(LEN); Snack.Head->Next->x=1;Snack.Head->Next->y=4; Snack.Head->Next->Next=(struct Node *)malloc(LEN); Snack.Tail=Snack.Head->Next->Next; Snack.Tail->Next=NULL; Snack.Tail->x=0;Snack.Tail->y=4; MakeNewFood(); registerbgidriver(EGAVGA_driver); initgraph(&gdriver,&gmode,PATH); DrawScreen(); } int PlayGame(){ char key; /*输入键值*/
while(1) { if(bioskey(1)) { key=bioskey(0); switch(key) { case UP: if(Snack.Direction!=DOWN) Snack.Direction=key; break; case DOWN: if(Snack.Direction!=UP) Snack.Direction=key; break; case RIGHT: if(Snack.Direction!=LEFT) Snack.Direction=key; break; case LEFT: if(Snack.Direction!=RIGHT) Snack.Direction=key; break; case PAUSE: cleardevice();outtextxy(230,240,"Pause,press any key to continue!");PrintRectangle=1;PrintFood=1;getch();cleardevice();DrawScreen();break; case EXIT: return 0; } } Move(); if(DeadOrNot()) return 0; MoveTimes++; /*未死时增加的移动次数*/ X=Snack.Tail->x; Y=Snack.Tail->y; if(ThereIsFood()) { EatFood(); MakeNewFood(); } DrawScreen(); delay(Difficulty); if(Score>100) Difficulty=25000; if(Score>200) Difficulty=15000; } } int MakeNewFood(){ do { srand((unsigned int)time(NULL)); Food.x=rand()%MaxX; Food.y=rand()%MaxY; }while(FoodInBody()); PrintFood=1; return 0; }
int FoodInBody(){ struct Node *p; p=Snack.Head; while(p!=NULL) { if(p->x==Food.x&&p->y==Food.y) return 1; p=p->Next; } return 0; } int ThereIsFood(){ if(Snack.Head->x==Food.x&&Snack.Head->y==Food.y) return 1; return 0; } int EatFood(){ /*去除食物图形*/ setfillstyle(EMPTY_FILL, BLACK); /*设置作图颜色*/ bar(XOFFSET+(Food.x)*NODEWIDTH+1,YOFFSET+(Food.y)*NODELENGTH+1,XOFFSET+(Food.x+1)*NODEWIDTH-1,YOFFSET+(Food.y+1)*NODELENGTH-1); Snack.Tail->Next=(struct Node *)malloc(LEN); Snack.Tail=Snack.Tail->Next; Snack.Tail->x=X; Snack.Tail->y=Y; Snack.Tail->Next=NULL; Snack.Length++; Score=Score+10; return 0; } int DeadOrNot(){ struct Node *p; if(Snack.Head->x>=MaxX || Snack.Head->x<0 ||Snack.Head->y>=MaxY || Snack.Head->y<0) return 1; p=Snack.Head; while(p!=Snack.Tail) { p=p->Next; if(p->x==Snack.Head->x && p->y==Snack.Head->y) return 1; } return 0; } int Move(){ struct Node *p; int NewX,NewY,Temp; p=Snack.Head->Next; NewX=Snack.Head->x; NewY=Snack.Head->y; while(p!=NULL) { Temp=p->x; p->x=NewX; NewX=Temp; Temp=p->y; p->y=NewY; NewY=Temp; p=p->Next; } /*去除已绘尾部*/ setcolor(BLACK); /*设置作图颜色*/ rectangle(XOFFSET+NewX*NODEWIDTH,YOFFSET+NewY*NODELENGTH,XOFFSET+(NewX+1)*NODEWIDTH,YOFFSET+(NewY+1)*NODELENGTH); switch(Snack.Direction) { case UP: Snack.Head->y--;break; case DOWN: Snack.Head->y++;break; case RIGHT: Snack.Head->x++;break; case LEFT: Snack.Head->x--;break; default: printf("Error");getch();return -1; } return 0; } int DrawScreen(){ struct Node *p; p=Snack.Head; /*设计框架*/ /*============================================================================================*/ if(PrintRectangle) { setcolor(BLUE); /*设置作图颜色*/ rectangle(XOFFSET-1,YOFFSET-1,XOFFSET+MaxX*NODEWIDTH+1,YOFFSET+MaxY*NODELENGTH+1); setcolor(MAGENTA); /*设置作图颜色*/ rectangle(XOFFSET,YOFFSET+MaxY*NODELENGTH+10,XOFFSET+MaxX*NODEWIDTH,479); setcolor(YELLOW); /*设置作图颜色*/ line(XOFFSET-10,0,XOFFSET-10,479); line(XOFFSET+MaxX*NODEWIDTH+10,0,XOFFSET+MaxX*NODEWIDTH+10,479); PrintRectangle=0; outtextxy(0,30,"Time:"); outtextxy(0,40,"2010/1/30"); outtextxy(0,80,"By:"); outtextxy(0,90,"Cloud"); outtextxy(0,130,"About:"); outtextxy(0,140,"Press W:UP"); outtextxy(0,160,"Press S:DOWN"); outtextxy(0,180,"Press A:LEFT"); outtextxy(0,200,"Press D:RIGHT"); outtextxy(0,220,"Press L:PAUSE"); outtextxy(0,240,"Press P:EXIT"); outtextxy(0,280,"CopyRight By Cloud"); outtextxy(0,310,"My E-mail:"); outtextxy(0,320,"hu_jun@yeah.net"); outtextxy(0,340,"Introduction:"); outtextxy(0,350,"Green:snack head~"); outtextxy(0,370,"Brown:other bodies~"); outtextxy(0,390,"Yellow:Food!"); outtextxy(0,430,"Last:"); outtextxy(0,440,"Happy Play~ :)"); } /*=============================================================================================*/ if(PrintFood) { setfillstyle(SOLID_FILL, YELLOW); /*设置作图颜色*/ bar(XOFFSET+(Food.x)*NODEWIDTH+1,YOFFSET+(Food.y)*NODELENGTH+1,XOFFSET+(Food.x+1)*NODEWIDTH-1,YOFFSET+(Food.y+1)*NODELENGTH-1); PrintFood=0; } setcolor(GREEN); /*设置作图颜色*/ rectangle(XOFFSET+(p->x)*NODEWIDTH,YOFFSET+(p->y)*NODELENGTH,XOFFSET+(p->x+1)*NODEWIDTH,YOFFSET+(p->y+1)*NODELENGTH); setcolor(BROWN); /*设置作图颜色*/ while(p!=Snack.Tail) { p=p->Next; rectangle(XOFFSET+(p->x)*NODEWIDTH,YOFFSET+(p->y)*NODELENGTH,XOFFSET+(p->x+1)*NODEWIDTH,YOFFSET+(p->y+1)*NODELENGTH); } return 0; } int EndOfGame(){ struct Node *p1,*p2; char *str; cleardevice(); PrintRectangle=1; PrintFood=1; DrawScreen();
setcolor(YELLOW); if(Score<=150) { sprintf(str, "What a pity,ur score is only %d,and u move %d.", Score,MoveTimes); outtextxy(XOFFSET,YOFFSET+MaxY*NODELENGTH+20,str); } else if(Score>150&&Score<=250) { sprintf(str, "Good Job,ur score is %d,and u move %d.", Score,MoveTimes); outtextxy(XOFFSET,YOFFSET+MaxY*NODELENGTH+20,str); } else { sprintf(str, "Congratulations,ur score reached %d,move %d,hold on!:)", Score,MoveTimes); outtextxy(XOFFSET,YOFFSET+MaxY*NODELENGTH+20,str); } getch();
p1=Snack.Head; while(p1!=NULL) { p2=p1->Next; free(p1); p1=p2; } closegraph(); return 0; }
