/* A program to drive a couple of stepper motors */
/* String Art */

#include <stdio.h>
#include <stdlib.h>
#include <asm/io.h>
#include "libesketch.h"

int main( int argc, char **argv )
{
    int i;

    int xm = 1000;	/* Screen X maximum */
    int ym = 650;	/* Screen Y maximum */
    int xc = 500;	/* Screen center X coordinate */
    int yc = 350;	/* Screen center Y coordinate */

    printf( "Usage: string [x_max y_max]\n" );
    if( argc == 3 )
    {
        xm = atoi( argv[1] );
        ym = atoi( argv[2] );
    }

    /* Init libesketch */
    init();

    /* Calculate screen center coordinates */
    xc = xm / 2;
    yc = ym / 2;

    for( i = 0; i < ym; i += 20 )
    {
	/* Draw a square */
	drawto(      i,      0 );
	drawto( ym    ,      i );
	drawto( ym - i, ym     );
	drawto(      0, ym - i );
	drawto(      i,      0 );
    }

    /* Turn off motor drivers */
    stop();

    return 0;
}