how to make a snake game in c++
#include<iostream>
#include<cmath>
#include<iomanip>
#include<conio.h>
using namespace std;
bool youlose;
const int wide=30;
const int height = 20;
int x,y,fruitX,fruitY,score;
enum direction {STOP,LEFT,RIGHT,UP,DOWN};
direction direct;
int tailx[100];
int taily[100];
int ntail;
void setup(){
youlose=false;
direct=STOP;
x = wide/2;
y = height/2;
fruitX= rand()% wide;
fruitY = rand()% height;
score = 0;
}
void draw(){
system("cls");
for(int i=0;i< wide;i++){cout<< "#";}
cout<< endl;
for(int i=0;i< height;i++){
for(int j=0;j<wide;j++){
if(j==0)
cout<<"#";
if(i == y&& j == x)
cout<< "<>";
else if(i== fruitY-1&&j == fruitX-1)
cout<< "O";
else{
for(int k=0;k<ntail;k++){
bool print = false;
if(tailx[k] == j&& taily[k]== i){
cout<< "o";
print = true;
}
}
cout<< " ";
}
cout<< " ";
if(j== wide-1)
cout<< "#";
}
cout<< endl;
}
system("cls");
for(int i=0;i< wide+2;i++){cout<< "#";}
cout<< endl;
cout<< "score: "<< score << endl;
}
void input(){
if(_kbhit()){
switch(_getch()){
case 'w':
direct = UP;
break;
case 'a':
direct = LEFT;
break;
case 'd':
direct = RIGHT;
break;
case 's':
direct = DOWN;
break;
case 'x':
youlose = true;
cout<< "GAME OVER";
}
}
}
void logic()
{
int prevx = tailx[0];
int prevy = taily[0];
int prev2x;
int prev2y;
tailx[0]= x;
taily[0]= y;
for(int i=1;i< ntail;i++)
{
prev2x = tailx[i];
prev2y= taily[i];
tailx[i] = prevx;
taily[i] = prev2y;
prevx = prev2x;
prev2y = prevy;
}
switch(direct){
case LEFT:
x--;
break;
case RIGHT:
x++;
break;
case UP:
y--;
break;
case DOWN:
y++;
break;
default:
break;
}
if(x> wide || x < 0|| y > height|| y <0)
direct = STOP;
/*for(int i=0;i< ntail;i++)
if(tailx[i]==x && taily[i]== y)
youlose = true;*/
if(x == fruitX || y == fruitY){score += 10;
fruitX= rand()% wide;
fruitY = rand()% height;
ntail++;
}
}
using namespace std;
int main(){
setup();
while(!youlose){
draw();
input();
logic();
}
return 0;
}