#include <dos.h>
#include <math.h>
#include <conio.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <graphics.h>

struct body
{
    int x,y;
    body *next;
};

int main()
{




    int GraphDriver = DETECT; 		/* Request auto-detection	*/
    int GraphMode;
    int ErrorCode;
    initgraph( &GraphDriver, &GraphMode, "" );
    ErrorCode = graphresult();		/* Read result of initialization*/
    if( ErrorCode != grOk ) 		/* Error occured during init	*/
    {
        printf(" Graphics System Error: %s\n", grapherrormsg( ErrorCode ) );
        exit( 1 );
    }









    body *start;
    body *curr;
    curr = NULL;
    start = NULL;
    int dx = 10;
    int dy = 0;
    char znak = 0;
    start = new body;
    start -> x = 320;
    start -> y = 240;
    start -> next = NULL;

    do
    {
        if(kbhit())
        {
            znak = getch();
            switch(znak)
            {
            case 'w':
                dy = -10;
                dx = 0;
                break;
            case 's':
                dy = 10;
                dx = 0;
                break;
            case 'a':
                dy = 0;
                dx = -10;
                break;
            case 'd':
                dy = 0;
                dx = 10;
                break;
            case ' ':
                curr = start;
                while(curr -> next != NULL)
                {
                    curr = curr -> next;
                }
                curr -> next = new body;
                //curr = curr -> next;
                curr -> next = NULL;
                break;
                
            }
            }
            start -> x += dx;
            start -> y += dy;
            delay(150);
            circle(start -> x,start -> y,5);
            do
            {
                curr = start;
                int tmpx, tmpy;
                tmpx = curr -> x;
                tmpy = curr -> y;

            }while(curr -> next != NULL);

    }while(znak!=27);

    while(!kbhit());	//czeka na naciśnięcie klawisza
    closegraph(); 		/* Return the system to text mode	*/

    return(0);
}