2: srand(time(NULL)); 初始化隨機(jī)種子, 你就記住用rand函數(shù)之前必須要用這個(gè)
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3: rand( )隨機(jī)函數(shù), 食物的x坐標(biāo)為 1到界面最右邊少一個(gè)位置中的任意一個(gè)值
4: 食物的y坐標(biāo)為 1到界面最下邊少一個(gè)位置中的任意一個(gè)值
5: 設(shè)置光標(biāo)到食物的坐標(biāo)位置, 以便打印出食物
我記得我寫的時(shí)候是先把框架列好,先從主程序開始,用到哪些函數(shù) 我就先寫上,當(dāng)然實(shí)現(xiàn)先不實(shí)現(xiàn),然后一步一步的完善。
主函數(shù)中進(jìn)行的步驟無非是接收一個(gè)鍵(這個(gè)接收函數(shù)一定要用getch(),為啥你懂得,還要有判斷當(dāng)前是否有鍵按下的函數(shù),這個(gè)是游戲必須的函數(shù),名字我忘了),清屏,畫出下一個(gè)狀態(tài)。
下一個(gè)狀態(tài)包括 整個(gè)地圖,蘋果的位置,蛇的的長(zhǎng)度以及每段的位置。
還要加上是否吃上東東,是否撞到墻,是否噴到了自己,就這些。
這是一個(gè)成功的貪吃蛇代碼(c語言編寫的),希望你能看懂!慢慢看:
#define N 200
#include graphics.h
#include stdlib.h
#include dos.h
#define LEFT 0x4b00
#define RIGHT 0x4d00
#define DOWN 0x5000
#define UP 0x4800
#define ESC 0x011b
int i,key;
int score=0;/*得分*/
int gamespeed=50000;/*游戲速度自己調(diào)整*/
struct Food
{
int x;/*食物的橫坐標(biāo)*/
int y;/*食物的縱坐標(biāo)*/
int yes;/*判斷是否要出現(xiàn)食物的變量*/
}food;/*食物的結(jié)構(gòu)體*/
struct Snake
{
int x[N];
int y[N];
int node;/*蛇的節(jié)數(shù)*/
int direction;/*蛇移動(dòng)方向*/
int life;/* 蛇的生命,0活著,1死亡*/
}snake;
void Init(void);/*圖形驅(qū)動(dòng)*/
void Close(void);/*圖形結(jié)束*/
void DrawK(void);/*開始畫面*/
void GameOver(void);/*結(jié)束游戲*/
void GamePlay(void);/*玩游戲具體過程*/
void PrScore(void);/*輸出成績(jī)*/
/*主函數(shù)*/
void main(void)
{
Init();/*圖形驅(qū)動(dòng)*/
DrawK();/*開始畫面*/
GamePlay();/*玩游戲具體過程*/
Close();/*圖形結(jié)束*/
}
/*圖形驅(qū)動(dòng)*/
void Init(void)
{
int gd=DETECT,gm;
initgraph(gd,gm,"c:\\tc");
cleardevice();
}
/*開始畫面,左上角坐標(biāo)為(50,40),右下角坐標(biāo)為(610,460)的圍墻*/
void DrawK(void)
{
/*setbkcolor(LIGHTGREEN);*/
setcolor(11);
setlinestyle(SOLID_LINE,0,THICK_WIDTH);/*設(shè)置線型*/
for(i=50;i=600;i+=10)/*畫圍墻*/
{
rectangle(i,40,i+10,49); /*上邊*/
rectangle(i,451,i+10,460);/*下邊*/
}
for(i=40;i=450;i+=10)
{
rectangle(50,i,59,i+10); /*左邊*/
rectangle(601,i,610,i+10);/*右邊*/
}
}
/*玩游戲具體過程*/
void GamePlay(void)
{
randomize();/*隨機(jī)數(shù)發(fā)生器*/
food.yes=1;/*1表示需要出現(xiàn)新食物,0表示已經(jīng)存在食物*/
snake.life=0;/*活著*/
snake.direction=1;/*方向往右*/
snake.x[0]=100;snake.y[0]=100;/*蛇頭*/
snake.x[1]=110;snake.y[1]=100;
snake.node=2;/*節(jié)數(shù)*/
PrScore();/*輸出得分*/
while(1)/*可以重復(fù)玩游戲,壓ESC鍵結(jié)束*/
{
while(!kbhit())/*在沒有按鍵的情況下,蛇自己移動(dòng)身體*/
{
if(food.yes==1)/*需要出現(xiàn)新食物*/
{
food.x=rand()%400+60;
food.y=rand()%350+60;
while(food.x%10!=0)/*食物隨機(jī)出現(xiàn)后必須讓食物能夠在整格內(nèi),這樣才可以讓蛇吃到*/
food.x++;
while(food.y%10!=0)
food.y++;
food.yes=0;/*畫面上有食物了*/
}
if(food.yes==0)/*畫面上有食物了就要顯示*/
{
setcolor(GREEN);
rectangle(food.x,food.y,food.x+10,food.y-10);
}
for(i=snake.node-1;i0;i--)/*蛇的每個(gè)環(huán)節(jié)往前移動(dòng),也就是貪吃蛇的關(guān)鍵算法*/
{
snake.x[i]=snake.x[i-1];
snake.y[i]=snake.y[i-1];
}
/*1,2,3,4表示右,左,上,下四個(gè)方向,通過這個(gè)判斷來移動(dòng)蛇頭*/
switch(snake.direction)
{
case 1:snake.x[0]+=10;break;
case 2: snake.x[0]-=10;break;
case 3: snake.y[0]-=10;break;
case 4: snake.y[0]+=10;break;
}
for(i=3;isnake.node;i++)/*從蛇的第四節(jié)開始判斷是否撞到自己了,因?yàn)樯哳^為兩節(jié),第三節(jié)不可能拐過來*/
{
if(snake.x[i]==snake.x[0]snake.y[i]==snake.y[0])
{
GameOver();/*顯示失敗*/
snake.life=1;
break;
}
}
if(snake.x[0]55||snake.x[0]595||snake.y[0]55||
snake.y[0]455)/*蛇是否撞到墻壁*/
{
GameOver();/*本次游戲結(jié)束*/
snake.life=1; /*蛇死*/
}
if(snake.life==1)/*以上兩種判斷以后,如果蛇死就跳出內(nèi)循環(huán),重新開始*/
break;
if(snake.x[0]==food.xsnake.y[0]==food.y)/*吃到食物以后*/
{
setcolor(0);/*把畫面上的食物東西去掉*/
rectangle(food.x,food.y,food.x+10,food.y-10);
snake.x[snake.node]=-20;snake.y[snake.node]=-20;
/*新的一節(jié)先放在看不見的位置,下次循環(huán)就取前一節(jié)的位置*/
snake.node++;/*蛇的身體長(zhǎng)一節(jié)*/
food.yes=1;/*畫面上需要出現(xiàn)新的食物*/
score+=10;
PrScore();/*輸出新得分*/
}
setcolor(4);/*畫出蛇*/
for(i=0;isnake.node;i++)
rectangle(snake.x[i],snake.y[i],snake.x[i]+10,
snake.y[i]-10);
delay(gamespeed);
setcolor(0);/*用黑色去除蛇的的最后一節(jié)*/
rectangle(snake.x[snake.node-1],snake.y[snake.node-1],
snake.x[snake.node-1]+10,snake.y[snake.node-1]-10);
} /*endwhile(!kbhit)*/
if(snake.life==1)/*如果蛇死就跳出循環(huán)*/
break;
key=bioskey(0);/*接收按鍵*/
if(key==ESC)/*按ESC鍵退出*/
break;
else
if(key==UPsnake.direction!=4)
/*判斷是否往相反的方向移動(dòng)*/
snake.direction=3;
else
if(key==RIGHTsnake.direction!=2)
snake.direction=1;
else
if(key==LEFTsnake.direction!=1)
snake.direction=2;
else
if(key==DOWNsnake.direction!=3)
snake.direction=4;
}/*endwhile(1)*/
}
/*游戲結(jié)束*/
void GameOver(void)
{
cleardevice();
PrScore();
setcolor(RED);
settextstyle(0,0,4);
outtextxy(200,200,"GAME OVER");
getch();
}
/*輸出成績(jī)*/
void PrScore(void)
{
char str[10];
setfillstyle(SOLID_FILL,YELLOW);
bar(50,15,220,35);
setcolor(6);
settextstyle(0,0,2);
sprintf(str,"score:%d",score);
outtextxy(55,20,str);
}
/*圖形結(jié)束*/
void Close(void)
{
getch();
closegraph();
}
#includeconio.h #includegraphics.h #includetime.h #includestring.h #includemalloc.h #includestdio.h int grade=5,point=0,life=3; void set(),menu(),move_head(),move_body(),move(),init_insect(),left(),upon(),right(),down(),init_graph(),food_f(),ahead(),crate(); struct bug { int x; int y; struct bug *last; struct bug *next; }; struct fd { int x; int y; int judge; }food={0,0,0}; struct bug *head_f=NULL,*head_l,*p1=NULL,*p2=NULL; void main() { char ch; initgraph(800,600); set(); init_insect(); while(1) { food_f(); Sleep(grade*10); setcolor(BLACK); circle(head_l-x,head_l-y,2); setcolor(WHITE); move_body(); if(kbhit()) { ch=getch(); if(ch==27) { ahead(); set(); } else if(ch==-32) { switch(getch()) { case 72:upon();break; case 80:down();break; case 75:left();break; case 77:right();break; } } else ahead(); } else { ahead(); } if(head_f-x==food.xhead_f-y==food.y) { Sleep(100); crate(); food.judge=0; point=point+(6-grade)*10; if(food.x30||food.y30||food.x570||food.y570) life++; menu(); } if(head_f-x5||head_f-x595||head_f-y5||head_f-y595) { Sleep(1000); life--; food.judge=0; init_graph(); init_insect(); menu(); } for(p1=head_f-next;p1!=NULL;p1=p1-next) { if(head_f-x==p1-xhead_f-y==p1-y) { Sleep(1000); life--; food.judge=0; init_graph(); init_insect(); menu(); break; } } if(life==0) { outtextxy(280,300,"游戲結(jié)束!"); getch(); return; } move(); }; } void init_graph() { clearviewport(); setlinestyle(PS_SOLID,1,5); rectangle(2,2,600,598); setlinestyle(PS_SOLID,1,1); } void set() { init_graph(); outtextxy(640,50,"1、開始 / 返回"); outtextxy(640,70,"2、退出"); outtextxy(640,90,"3、難度"); outtextxy(640,110,"4、重新開始"); switch(getch()) { case '1': menu();setcolor(GREEN);circle(food.x,food.y,2);setcolor(WHITE);return; case '2': exit(0);break; case '3': outtextxy(700,90,":1 2 3 4 5");grade=getch()-48;set();break; case '4': food.judge=0,grade=5;point=0;life=3;init_insect();menu();break; default: outtextxy(250,300,"輸入錯(cuò)誤!"); set();break; } } void menu() { char str[20],str1[]={"分?jǐn)?shù):"},str2[]={"難度:"},str3[]={"生命值:"}; init_graph(); sprintf(str,"%d",point); strcat(str1,str); outtextxy(640,50,str1); sprintf(str,"%d",grade); strcat(str2,str); outtextxy(640,70,str2); sprintf(str,"%d",life); strcat(str3,str); outtextxy(640,90,str3); outtextxy(640,110,"設(shè)置:ESC"); } void init_insect() { head_f=(struct bug *)malloc(sizeof(struct bug)); head_f-last=NULL; head_f-x=300; head_f-y=300; p2=head_f-next=p1=(struct bug *)malloc(sizeof(struct bug)); p1-last=head_f; p1-x=295; p1-y=300; p1=p1-next=(struct bug *)malloc(sizeof(struct bug)); p1-next=NULL; p1-x=290; p1-y=300; p1-last=p2; head_l=p1; } void move() { for(p1=head_f;p1!=NULL;p1=p1-next) { circle(p1-x,p1-y,2); } } void move_head() { } void move_body() { for(p1=head_l,p2=p1-last;p2!=NULL;p1=p2,p2=p2-last) { p1-x=p2-x; p1-y=p2-y; } } void ahead() { p1=head_f; p2=p1-next; p2=p2-next; if(p1-x==p2-x) { if(p1-yp2-y) head_f-y+=5; else head_f-y-=5; } else { if(p1-xp2-x) { head_f-x+=5; } else head_f-x-=5; } } void upon() { p1=head_f-next; p1=p1-next; head_f-y-=5; if(p1-x==head_f-xp1-y==head_f-y) { head_f-y+=5; ahead(); } } void down() { p1=head_f-next; p1=p1-next; head_f-y+=5; if(p1-x==head_f-xp1-y==head_f-y) { head_f-y-=5; ahead(); } } void left() { p1=head_f-next; p1=p1-next; head_f-x-=5; if(p1-x==head_f-xp1-y==head_f-y) { head_f-x+=5; ahead(); } } void right() { p1=head_f-next; p1=p1-next; head_f-x+=5; if(p1-x==head_f-xp1-y==head_f-y) { head_f-x-=5; ahead(); } } void food_f() { if(!food.judge) { food.x=(rand()%117+1)*5; food.y=(rand()%117+1)*5; food.judge=1; if(food.x30||food.y30||food.x570||food.y570) { setcolor(RED); circle(f