#include <iostream.h>
#include <conio.h>
#include <windows.h>


void gotoxy(int x, int y);
void lftrght(char ch, int colStart, int row, int colFinish);
void rghtlft(char ch, int colStart, int row, int colFinish);
void topbot(char ch, int colStart, int row, int colFinish);
void bottop(char ch, int colStart, int row, int colFinish);

int main()
{
    int left = 0;
    int right = 78;
    int bot= 12;
    int up= 12;

    for ( int snake=0; snake<39;snake++)
    {
        int left1=left-1;
        int right1= right+1;
        int bot1= bot-1;
        int up1= up-1;

        int col=left;
        gotoxy(col,up);
        cout<<">";
        Sleep(10);
        //bot
        col= right;

        gotoxy(col,bot);
        cout<<"<";
        Sleep(10);
        right--;
        left ++;

        col=left1;
        gotoxy(col,up);
        cout<<"*";
        Sleep(10);
        //bot
        col= right1;

        gotoxy(col,bot);
        cout<<"*";
        Sleep(10);
    }
    left = 0;
    right = 79;
    bot= 12;
    up= 12;
    int col=0;

    for ( int snake=0; snake<39;snake++)
    {
        col=left;
        gotoxy(col,up);
        cout<<" ";
        Sleep(10);
        //bot
        col= right;

        gotoxy(col,bot);
        cout<<" ";
        Sleep(10);
        right--;
        left ++;
    }
    gotoxy(right,bot);
    cout<<" ";
    Sleep(10);
    right--;
    gotoxy(right,bot);
    cout<<" ";
    Sleep(10);
    getch();

    for ( int bob=0; bob<30; bob++)
    {
        int top=10;
        int bottom=12;
        int left=38;
        int  right= 42;
        for (int lol=0; lol<6;lol++)
        {
            //top border left to right
            lftrght('*', left,top,right);
            // border down the right side
            topbot('*', top,right,bottom);
            //bottom right to lrft
            rghtlft('*',right,bottom,left);

            // up the left side
            bottop('*', bottom,left,top);
            Sleep(100);
            top--;
            left--;
            right++;
            bottom++;
            top--;
            left--;
            right++;
            bottom ++;
        }

        for (int lol=0; lol<7;lol++)
        {
            //top border left to right
            lftrght(' ', left,top,right);
            // border down the right side
            topbot(' ', top,right,bottom);
            //bottom right to lrft
            rghtlft(' ',right,bottom,left);

            // up the left side
            bottop(' ', bottom,left,top);
            Sleep(100);
            top++;
            left++;
            right--;
            bottom--;
            top++;
            left++;
            right--;
            bottom --;
        }
    }
        getch();
        return 0;
}
void lftrght(char ch, int colStart, int row, int colFinish)
{
    //top border left to right
    for (int col=colStart; col < colFinish;col++)
    {
        gotoxy(col,row);
        cout<<ch;
    }
}
void rghtlft(char ch, int colStart, int row, int colFinish)
{
    //top border left to right
    for (int col=colStart; col >colFinish;col--)
    {
        gotoxy(col,row);
        cout<<ch;

    }
}
void topbot(char ch, int colStart, int row, int colFinish)
{
    //top border left to right
    for (int col=colStart; col <colFinish;col++)
    {
        gotoxy(row,col);
        cout<<ch;

    }
}
void bottop(char ch, int colStart, int row, int colFinish)
{
    //top border left to right
    for (int col=colStart; col>colFinish;col--)
    {
        gotoxy(row,col);
        cout<<ch;

    }
}




void gotoxy(int x, int y)
{
    COORD coord;
    coord.X = x;
    coord.Y = y;
    SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE), coord);
}