#include    <stdio.h>
#include    <stdlib.h>
#include    "project.h"


int main (int argc, char *argv[]) {
	char	c;
	int	i,j;
	int	dir;
	int	n;
	int	p =1;

	//defaults
	dir = 2;
	i = 3600;
	j = 4800;
	n = 10;

	//get command line arguments
	GET_ARG(n,1)
	GET_ARG(dir,2) 	 

	//pring xfig file header
	printf("#FIG 3.2\nLandscape\nCenter\nInches\nLetter\n100.00\nSingle\n-2\n1200 2\n");

	//declare a polyline
	printf("2 1 0 1 0 7 50 -1 -1 0.000 0 0 -1 0 0 %i\n\t ",n);

	//starting point
	printf("%i %i ",i,j);
	

	while ( TRUE ) {
		//draw a line segment
		switch(dir){
			case 0: i+=DRAGON_LENGTH2; break;
			case 1: j+=DRAGON_LENGTH2; break;
			case 2: i-=DRAGON_LENGTH2; break;
			default: j-=DRAGON_LENGTH2; break;
		}
		printf("%i %i ",i,j);
		p++;

		//read stdin until end of line reached
		if ((c = getchar() ) == '\n' )	break;

		dir = (dir + (c == A ? 1 : -1 ) +4) % 4;	//+4 is to stop it going -ve


	}

	printf("\n");

	fprintf(stderr,"%i lines drawn\n",p);

	return(EXIT_SUCCESS);
}