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#include<stdlib.h>
#include<stdio.h>
#include<dos.h>
#include<time.h>
#include<math.h>
#include<conio.h>
#include<constream.h>
static int snake[300][2], food[30][2], screen[80][25], i, j, k;
static int headx, heady, foodx, foody, level, tailx, taily, tail;
char dir, key;
main()
{
//clrscr();
randomize();
_setcursortype(_NOCURSOR); //this wouldn't display the cursor.
//start:
crash: clrscr();
tail=0;
dir='r';
// initialize snakes first coordinates
{
headx=random(79)+1;
heady=random(23)+1;
snake[0][0]=headx;
snake[0][1]=heady;
}
// put food
for(i=0; i<30; i++)
do{
foodx=random(78)+1;
foody=random(23)+1;
food[i][0]=foodx;
food[i][1]=foody;
}while(foodx==0&&foody==0) ;
//display food
textcolor(14);
for(i=0; i<30; i++)
{
foodx=food[i][0];
foody=food[i][1];
gotoxy(foodx, foody);
if(food[i][0]!=0)
cout<<"$";
}
main_loop:
{
tailx=snake[tail][0];
taily=snake[tail][1];
headx=snake[0][0];
heady=snake[0][1];
}
if(tail!=0)
{
for(i=tail; i>0; i--)
{
snake[i][0]=snake[i-1][0];
snake[i][1]=snake[i-1][1];
}
}
//erase the last part of tail
if(tailx!=0 && taily!=0)
{
gotoxy(tailx, taily);
cout<<" ";
}
//move snake
chdir:
switch(dir)
{
case 'u':
if(heady>0)
heady-=1;
snake[0][1]=heady;
//else; //snake dies
break;
case 'd':
if(heady<24)
heady+=1;
snake[0][1]=heady;
//else; //snake dies
break;
case 'l':
if(headx>1)
headx-=1;
snake[0][0]=headx;
//else; //snake dies
break;
case 'r':
if(headx<80)
headx+=1;
snake[0][0]=headx;
//else; // snake dies
break;
case 'p':
dir='p';
while(!kbhit());
break;
}// end of switch
// control if snake crashed
/*if(screen[headx][heady]==1)
{
gotoxy(25, 12);
cout<<"CRASHED !...... ";
while(getch()!=32);
goto crash;
}*/
// control if snake crashed to himself
for(i=1; i<tail; i++)
{
if(headx==snake[i][0] && heady==snake[i][1])
{
textcolor(5);
gotoxy(25, 25);
cout<<"CRASHED ! ....... ";
while(getch()!=32);
goto crash;
}
}
// control if snake ate food
// draw snake
//for(i=0; i<=tail; i++)
if(snake[0][0]!=0 && snake[0][1]!=0)
{
gotoxy(snake[0][0], snake[0][1]);
cout<<"#";
}
for(i=0; i<30; i++)
{
foodx=food[i][0];
foody=food[i][1];
if(headx==foodx && heady==foody && food[i][0]!=0)
{
food[i][0]=0;
tail+=1;
//goto chdir;
}
}
delay(100);
if(kbhit())
{
asd:key=getch();
switch(key)
{
case 72:
if(dir!='d')
dir='u';
break;
case 80:
if(dir!='u')
dir='d';
break;
case 75:
if(dir!='r')
dir='l';
break;
case 77:
if(dir!='l')
dir='r';
break;
// pause
case 'p':
dir='p';
break;
case 27:
exit(0);
break;
case 0: goto asd;
}
}
gotoxy(1,1);cout<<"Score"<<tail;
goto main_loop;
//getch();
}
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