Snake Game I made in C++

Why not Take A look at this Snake Game I made in C++

#include<iostream.h>

#include<conio.h>

#include<dos.h>

#include<graphics.h>

#include<stdio.h>

#include<stdlib.h>

#include<process.h>

#include<fstream.h>

int p,h,c[50],a,b,x1[50],n=5,x=320,y=200,y1[50],j=1,q,m,sc=-5,hs=0;

char *hr,*sr,st='p';

void hsc()  //TO CALCULATE & STORE HIGH SCORE

{

ifstream fin("High.txt"); //DATA HANDLING USED

fin.seekg(0);

fin>>hs;

fin.close();

settextstyle(1,0,1);

setcolor(BLUE);

itoa(hs,hr,10);

outtextxy(600,300,hr);

if(sc>hs)

{

hs=sc;

ofstream fout("High.txt"); //FILE NAMED HIGH.txt STORES THE HIGH SCORE

fout<<hs;

fout.close();

setcolor(0);

outtextxy(600,300,hr);

ltoa(hs,hr,10);

setcolor(BLUE);

outtextxy(600,300,hr);

}

}

void cd()  //TO CLEAR THE SNAKE BODY

{

setcolor(WHITE);

setfillstyle(SOLID_FILL,WHITE);

if(c[n-1])

fillellipse(x1[n-1],y1[n-1],10,5);

else

fillellipse(x1[n-1],y1[n-1],5,10);

}

void er()

{

setcolor(WHITE);

setfillstyle(SOLID_FILL,WHITE);

fillellipse(p,h,5,5);

}

void ins()   // TO PROVIDE INSTRUCTIONS AND SCORES

{

line(500,0,500,400);

line(0,400,640,400);

line(500,100,640,100);

  setcolor(BLUE);

  settextstyle(7,0,1);

  outtextxy(10,410,"Project by -  RISHABH AGGARWAL       Submitted to ");

  outtextxy(135,440,"XII - A                         Amit Gupta ");

  settextstyle(7,0,4);

  outtextxy(510,5,"Snake");

  outtextxy(520,50,"Game");

  settextstyle(11,0,2);

  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");

  outtextxy(524,250,"SCORE -  ");

  outtextxy(524,280,"High Score -");

}

void score() //TO CALCULATE SCORE OF THE PLAYER

{

ltoa(sc,sr,10);

settextstyle(1,0,1);

setcolor(0);

outtextxy(600,240,sr);

sc+=5;

ltoa(sc,sr,10);

setcolor(BLUE);

outtextxy(600,240,sr);

}

void crd()  //TO GET THE CO-ORDINATES OF THE FOOD

{

p=(rand()%485)+10;

h=(rand()%385)+10;

score();

hsc();

}

void gnr()   // TO GENERATE THE FOOD

{

setcolor(BLUE);

setfillstyle(SOLID_FILL,rand()%15+1);

fillellipse(p,h,5,5);

}

int move()  // TO MOVE THE SNAKE BODY

{

setcolor(BLUE);

int m=1,z;

x1[0]=x;

y1[0]=y;

while(1)

{

cd();

gnr();

ins();

if(m==0)

{

c[0]=1;

x1[0]=x1[0]-20;

y=y1[0];

if(x1[0]<0)

x1[0]=490;

}

else

if(m==1)

{

c[0]=1;

x1[0]=x1[0]+20;

if(x1[0]>500)

x1[0]=10;

}

else

if(m==2)

{

y1[0]=y1[0]+20;

//x=x1[0];

c[0]=0;

if(y1[0]>400)

y1[0]=10;

}

else

{

y1[0]=y1[0]-20;

c[0]=0;

if(y1[0]<0)y1[0]=390;

}

for(int i=n-1;i>0;i--)

{

x1[i]=x1[i-1];

c[i]=c[i-1];

y1[i]=y1[i-1];

setfillstyle(CLOSE_DOT_FILL,rand()%15+1);

if(c[i])

{

ellipse(x1[i],y1[i],0,360,10,5);

fillellipse(x1[i],y1[i],10,5);

}

else

{

ellipse(x1[i],y1[i],0,360,5,10);

fillellipse(x1[i],y1[i],5,10);

}

}

if(c[0])

ellipse(x1[0],y1[0],0,360,10,5);

else

ellipse(x1[0],y1[0],0,360,5,10);

delay(100);

int check(); // PROTOTYPE OF CHECK FUNTION

check();   // FUNCTION CALL TO CHECK THE SNAKE'S HEAD DON'T CUT HIS BODY

if((p<=x1[0]+10&&p>=x1[0]-10) && (h<=y1[0]+10&&h>=y1[0]-10))

{

er();

crd();   // FUNTION CALL TO GET THE NEW COORDINATES OF THE FOOD

if(n<50)

++n;

}

if(kbhit())

{

z=getch(); // TO CHECK KEYBOARD INPUTS

switch(z)

{

case(72):m=3;j=1;  //HERE 72,77,80,75 ARE DIRECTIONAL KEYS

break;

case(77):m=1;j=1;  // USED TO NAVIGATE THE SNAKE

break;

case(80):m=2;j=1;

break;

case(75):m=0;j=1;

break;

case('p'):if(!kbhit()) //TO PAUSE THE GAME

getch();

break;

case('e'):exit(0); //TO EXIT THE GAME

default:break;

}

}

}

}

int check() // FUNTION TO CHECK THE SNAKE DO NOT CUT IT'S BODY

{

for(int i=3;i<n;++i)

if(x1[0]==x1[i] && y1[0]==y1[i])

{

while(!kbhit())

{

setcolor(RED);

settextstyle(EUROPEAN_FONT,HORIZ_DIR,2);

outtextxy(250,200,"GAME OVER");

delay(100);

setcolor(WHITE);

outtextxy(250,200,"GAME OVER");

delay(100);

}getch();

exit(0);

}

}

void main()  // MAIN FUNTION

{

clrscr();

int gd=DETECT,gm;

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

setbkcolor(WHITE);

setcolor(BLUE);

crd();

gnr();

move();

getch();

closegraph();

}

I'll Keep posting more exciting things. Give me programming problems to solve for you. I'll give you the best of it.