SNAKE GAME WITH GRAPHICS

By lakahman malviya

  #include<iostream>  

#include<conio.h>  

#include<graphics>  

#include<dos.h>  

#include<stdlib.h>  

#include<stdio.h>  

#include<time.h>  

#include<string.h>  

class Snake  

{  

 int p1,p2,v1,v2,v3,e1,e2,prev,now,n,colr,dsp,cnt,dly,m;  

 int stp, egGen;  

 int xr, yr;  

 void caught();  

 public:  

  long scr;  

 int strtX,strtY,endX,endY;  

 int pos[100][2];  

 void show();  

 void init();  

 void egg();  

 void transpose();  

 void gnrtCond();  

 void gnrtUnCond();  

 void check();  

 void checkEgg();  

 void move();  

 void chngDir();  

 void sndEt();  

 void sndCgt();  

 int test();  

 void score();  

 Snake();  

 Snake(Snake*);  

 ~Snake();  

 };  

Snake::Snake()  

 {  

 }  

Snake::~Snake()  

{  

}  

void Snake::checkEgg()  

{  

 if((e1 == p1) && (e2 == p2))  

 { sndEt();  

  egg();  

  dly--;  

  score();  

  n++;  

  }  

}  

void Snake::sndEt()  

{ nosound();  

 sound(2500);  

 delay(2);  

 nosound();  

}  

void Snake::sndCgt()  

{ nosound();  

 for(int x=1000;x>0;x--)  

 { sound(x);  

  delay(1);  

  }  

 nosound();  

}  

void Snake::score()  

{ char *p;  

  ltoa(scr,p,10);  

  settextstyle(8,0,1);  

  setcolor(0);  

  outtextxy(585,40,p);  

  if(egGen != 1){  

  scr = scr + dly / 10;  

  }  

  ltoa(scr,p,10);  

  setcolor(10);  

  outtextxy(585,40,p);  

}  

void Snake::gnrtCond()  

{ if(n < 367)  

 { if(now == 8 && (prev != 8 && prev != 2))  

  { pos[0][0] = p1;  

   pos[0][1] = p2 - dsp;  

   prev = now;  

   }  

  if(now == 4 && (prev != 4 && prev != 1))  

  { pos[0][0] = p1 + dsp;  

   pos[0][1] = p2;  

   prev = now;  

   }  

  if(now == 2 && (prev != 8 && prev != 2))  

  { pos[0][0] = p1;  

   pos[0][1] = p2 + dsp;  

   prev = now;  

   }  

  if(now == 1 && (prev != 1 && prev != 4))  

  {pos[0][0] = p1 - dsp;  

   pos[0][1] = p2;  

   prev = now;  

   }  

}  

}  

void Snake::gnrtUnCond()  

{  

  if( prev == 8 )  

  { pos[0][0] = p1;  

   pos[0][1] = p2 - dsp;  

   }  

 if( prev == 4 )  

  {pos[0][0] = p1 + dsp;  

   pos[0][1] = p2;  

   }  

 if( prev == 2 )  

  { pos[0][0] = p1;  

   pos[0][1] = p2 + dsp;  

   }  

 if( prev == 1 )  

  {pos[0][0] = p1 - dsp;  

   pos[0][1] = p2;  

   }  

 p1 = pos[0][0];  

 p2 = pos[0][1];  

}  

void Snake::check()  

{  

 if(p1 > endX)  

  {p1 = strtX;}  

 else if(p1 < strtX)  

  { p1 = endX;}  

 if(p2 > endY)  

  { p2 = strtY;}  

 else if(p2 < strtY)  

  { p2 = endY;}  

 pos[0][0] = p1;  

 pos[0][1] = p2;  

for(int i = 1;i < n;i++)  

  { if(p1 == pos[i][0] && p2 == pos[i][1])  

  { caught();  

   break;  

  }  

 }  

}  

void Snake::show()  

{  

  int x = getcolor();  

  if(egGen != 1)  

  {  

  setcolor(getbkcolor());  

  setfillstyle(1,getbkcolor());  

  fillellipse(v1,v2,yr,yr);  

   }  

  else  

   egGen = 0;  

  if(egGen == 2)  

   egGen--;  

  setcolor(colr);  

  setfillstyle(1,9);  

  if(now == 8 || now == 2)  

   fillellipse(pos[0][0],pos[0][1],xr,yr);  

  else if(now == 4 || now == 1)  

   fillellipse(pos[0][0],pos[0][1],yr,xr);  

  setcolor(x);  

}  

void Snake::transpose()  

{ int i,j,x,y;  

   p1 = pos[0][0];  

   p2 = pos[0][1];  

   if(!egGen){  

   v1 = pos[n-1][0];  

   v2 = pos[n-1][1];  

   }  

   else  

    egGen = 0;  

   for(i = n-1;i >= 1;i--)  

   {pos[i][0] = pos[i-1][0];  

    pos[i][1] = pos[i-1][1];  

   }  

}  

void Snake::move()  

{ int st = 0;  

  do{  

   if(!kbhit())  

   { checkEgg();  

    if(!st)  

     show();  

    else  

     st = 0;  

    delay(dly/4);  

    transpose();  

    delay(dly/4);  

    gnrtUnCond();  

    delay(dly/4);  

    check();  

   delay(dly/4);  

    }  

   else if(stp){  

   chngDir();  

   gnrtCond();  

   check();  

   show();  

   st = 1;  

   }  

   } while(stp);  

}  

void Snake::init()  

{time_t tm;  

 srand(time(&tm));  

 dsp = 20;  

 n = 5;  

 prev = 4;  

 for(int i = 4;i >= 0;i--)  

 { pos[i][0] = 201 + (n - i - 1) * dsp;  

  pos[i][1] = 301;  

  }  

  strtX = 21;  

  strtY = 21;  

  endX = 481;  

  endY = 361;  

  colr = 14;  

  now = prev;  

  dsp = 20;  

  stp = 111;  

  cnt = -1;  

  scr = 0;  

  dly = 150;  

   xr = 3;  

   yr = 9;  

  egg();  

  egGen = 1;  

  score();  

  int x = getcolor();  

  setlinestyle(0,1,3);  

  setcolor(15);  

  rectangle(strtX-15,strtY-15,endX+15,endY+15);  

  rectangle(endX+25,strtY-15,getmaxx()-15,endY+15);  

  rectangle(strtX-15,endY+25,getmaxx()-15,getmaxy()-5);  

  line(endX+25,strtY+75,getmaxx()-15,strtY+75);  

  line(endX+25,strtY+200,getmaxx()-15,strtY+200);  

  line(endX+25,strtY+275,getmaxx()-15,strtY+275);  

  setlinestyle(0,1,1);  

  settextstyle(8,0,1);  

  setcolor(11);  

  outtextxy(514,40,"SCORE");  

  setcolor(14);  

  settextstyle(11,0,5);  

  outtextxy(524,110," CONTROLS ");  

  outtextxy(522,135,"p = PAUSE");  

  outtextxy(522,155,"g = RESUME");  

  outtextxy(522,175,"e = EXIT");  

  outtextxy(513,195,"ARROWS");  

  outtextxy(512,205,"    -MOVEMENT");  

  setcolor(14);  

  settextstyle(4,0,9);  

  outtextxy(getmaxx()-500,getmaxy()-110,"SNAKE");  

  settextstyle(8,0,1);  

  setcolor(x);  

}  

void Snake::caught()  

{  

 stp = 0;  

 sndCgt();  

for(int i=0;i<=7;i++)  

 { if(i%2)  

  { setcolor(10);  

   outtextxy(512,250,"GAME OVER");  

   delay(900);  

   }  

  else  

  {setcolor(0);  

   outtextxy(512,250,"GAME OVER");  

   delay(500);  

  }  

  }  

sleep(1);  

}  

void Snake::chngDir()  

 { int clr;  

 fillsettingstype *p;  

 char x = getch();  

 if(x == 72)  

  now = 8;  

 else if(x == 77)  

  now = 4;  

 else if(x == 80)  

  now = 2;  

 else if(x == 75)  

  now = 1;  

 else if(x == 'e')  

  caught();  

 else if(x == 'p')  

 { //int y = getcolor();  

  int twnkl = 1;  

  settextstyle(11,0,9);  

  while(1)  

  {if(kbhit())  

   { int c = getch();  

    if(c == 'g')  

    { clr = getcolor();  

     setcolor(0);  

     rectangle(endX+40,endY-10,getmaxx()-35,getmaxy()-160);  

     outtextxy(endX+60,endY-29,"PAUSE");  

     break;  

     }  

    }  

   else  

   { if(twnkl%2)  

    { clr = getcolor();  

     setcolor(10);  

     rectangle(endX+40,endY-10,getmaxx()-35,getmaxy()-160);  

     outtextxy(endX+60,endY-29,"PAUSE");  

     setcolor(clr);  

      delay(1000);  

     }  

    else  

    {  

     clr = getcolor();  

     setcolor(0);  

     rectangle(endX+40,endY-10,getmaxx()-35,getmaxy()-160);  

     outtextxy(endX+60,endY-29,"PAUSE");  

     delay(1000);  

    }  

   }  

   twnkl++;  

  }  

    settextstyle(8,0,1);  

 }  

}  

Snake::Snake(Snake *p)  

{  

 *p=NULL;  

}  

void Snake::egg()  

{ do  

  { e1 = (rand() % 100) * dsp + strtX;  

   e2 = (rand() % 100) * dsp + strtY;  

   } while(test());  

  int x = getcolor();  

  setcolor(7);  

  setfillstyle(1,random(15)+1);  

  fillellipse(e1,e2,xr+2,xr+2);  

  setcolor(x);  

  egGen = 2;  

}  

int Snake::test()  

{   

for(int i=0;i<n;i++)  

  { if(e1 == pos[i][0] && e2 == pos[i][1])  

    break;  

   if(v1 == e1 && v2 == e2)  

    break;  

   if((e1 >= endX+1) || (e2 >= endY+1))  

    break;  

   }  

 if(i != n)  

  return 1;  

 else  

  return 0;  

}  

void main()  

{  

Snake snk;  

 int gd=DETECT,gm,i,j,k,x,y;  

 clrscr();  

 initgraph(&gd,&gm,"C:\\Turboc3\\bgi");  

 snk.init();  

 snk.move();  

 closegraph();  

 restorecrtmode();  

 } 

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