#include <iostream>
#include<stdio.h>
#include<locale>
#include <math.h>
#include <cmath>
#include<conio.h>
#include "windows.h"
using namespace std;
int const a=18;
int const b=20;
char mass[a][b];
int x,y,s=0,s1=0,s2=1,s3=0;
float s_time=5;
int len=1,bonus=0,inter=250;
int last_get=80,posh=11;
struct position
{
	int x; 
	int y;
};
position snake[324];
position pos;
void lose()
{
	cout<<"You lose..."<<endl;
				exit(0);
}
void filling()
{
	pos.x=1;
	pos.y=1;
	for(int i=0;i<324;i++)
	{
		snake[i].x=1;
		snake[i].y=1;
	}
}
void swp()
{
			for(int i=len+2;i>=0;i--)
			{
				snake[i+1].x=snake[i].x;
				snake[i+1].y=snake[i].y;
			}
		snake[0].x=pos.x;
		snake[0].y=pos.y;
		
}
int move(int get)
{
	if(get==72)
		{
			if(mass[pos.y-1][pos.x]=='*')
			{
				lose();
			}
			if(mass[pos.y-1][pos.x]=='0')
			{
				len++;
			}
			if(mass[pos.y-1][pos.x]=='@')
			{
				len++;
				bonus++;
			}
			if(mass[pos.y-1][pos.x]==':')
			{
				pos.y=a-2;
			}
			else
			{
			pos.y--;
			}
			last_get=get;
		}
		if(get==80)
		{
			if(mass[pos.y+1][pos.x]=='*')
			{
				lose();
			}
			if(mass[pos.y+1][pos.x]=='0')
			{
				len++;
			}
			if(mass[pos.y+1][pos.x]=='@')
			{
				len++;
				bonus++;
			}
				if(mass[pos.y+1][pos.x]==':')
			{
				pos.y=1;
			}
				else
				{
			pos.y++;
				}
				last_get=get;
		}
		if(get==75)
		{
			if(mass[pos.y][pos.x-1]=='*')
			{
				lose();
			}
			if(mass[pos.y][pos.x-1]=='0')
			{
				len++;
			}
			if(mass[pos.y][pos.x-1]=='@')
			{
				len++;
				bonus++;
			}
			if(mass[pos.y][pos.x-1]==':')
			{
				pos.x=b-2;
			}
			else
			{
				pos.x--;
			}
			last_get=get;
		}
		if(get==77)
		{
			if(mass[pos.y][pos.x+1]=='*')
			{
				lose();
			}
			if(mass[pos.y][pos.x+1]=='0')
			{
				len++;
			}
			if(mass[pos.y][pos.x+1]=='@')
			{
				len++;
				bonus++;
			}
			if(mass[pos.y][pos.x+1]==':')
			{
				pos.x=1;
			}
			else
			{
				pos.x++;
			}
			last_get=get;
		}
		if(get==43)
			{
				if(inter<=1000)
				{
				inter+=25;
				}
				get=last_get;
			}
		if(get==45)
			{
				if(inter!=0)
				{
				inter-=25;
				}
				get=last_get;
			}
		if(get==48)
			{
				inter=250;
				get=last_get;
			}
		else
			{
				get=last_get;
			}
		swp();
		if(get==13)
		{
			system("cls");
			for(int i=0;i<=len+1;i+=2)
			{
				cout<<snake[i].y<<" "<<snake[i].x<<endl;
			}
			cout<<"Bonus: "<<bonus<<endl;
			cout<<"Last get: "<<last_get<<endl;
			Sleep(10000);
			get=last_get;
		}
		return get;
}
void out()
{
	s1=0;
				for(int i=0;i<a;i++)	
				{
						for(int j=0;j<b;j++)
						{
							if(mass[i][j]=='0'||(mass[i][j]=='@'&&s_time!=0))
								{
									s1=1;
								}
						}
				}
			for(int i=0;i<a;i++)
			{
				for(int j=0;j<b;j++)
					{
						if(mass[i][j]!='0'&&mass[i][j]!='@'||s_time==0)
							{
							mass[i][j]=' ';
							}
					}
			}
			
			for(int i=0;i<len;i++)
			{
				mass[snake[i].y][snake[i].x]='*';
			}
			for(int i=0;i<a;i++)
			{
				for(int g=0;g<b;g++)
					{
						if((g==0||g==(b-1)||i==0||i==(a-1))&&(mass[i][g]!='*'))
						{
							mass[i][g]=':';	
						}
					}
			}

		
			if(s1!=1)
			{
					s_time=5;
						do{
							y=rand()%(a-1)+1;
							x=rand()%(b-1)+1;
							if(mass[y][x]==' '&&(s2%posh)!=0)
							{
								mass[y][x]='0';
								s=1;
								s3=0;
								s2++;
							}
							if(mass[y][x]==' '&&(s2%posh)==0)
							{
								mass[y][x]='@';
								s=1;
								s3=1;
								s2++;
							}
						}while(s==0);
						s=0;
			}

}
void print()
{
	for(int i=0;i<a;i++)
			{
				for(int j=0;j<b;j++)
					{
						cout<<mass[i][j];
					}
				if(i==0)
						{
							cout<<"\tYour Points:";
						}
				if(i==1)
						{
							cout<<"\t     "<<(len-1)*10+bonus*100-bonus*10;
						}
				if(i==3&&s3==1)
						{
							cout<<"\tBonus time:";
						}
				if(i==4&&s3==1)
						{
							cout<<"\t";
							for(int i=s_time;i>=0;i--)
							{
								cout<<"**";
							}
							s_time-=0.25;
						}
				cout<<endl;
			}
}
void main()
{
	srand(time(NULL));
	int get=80;
	filling();
		while(1)
		{
			out();
			print();
				if (kbhit() == true)
				{
					get=_getch();
				}
			get=move(get);
			Sleep(inter);
			system("cls");
		}
	
}