// Команда МГПИ.
// Решение задачи номер 1

#include <stdlib.h>
#include <ctype.h>
#include <stdio.h>
#include <conio.h>
#include <math.h>
#include <string.h>

typedef struct
{
	double x, y;
} POINT;

POINT MoveTo (POINT current_point, int cur, char *d);

void main()
{
	char str[250], *t1, *t2, num[50]={""};
	unsigned int len, map_num = 1;

	FILE *f;
	POINT current_point = {0, 0};

	f = fopen ("treasure.in", "rt");
	if (!f)
	{
		puts ("Файл treasure.in отсутствует");
		exit (EXIT_FAILURE);
	}

	fgets (str, 202, f);

	t1 = str;
	while (strcmp(str, "END") && strcmp(str, "END\n"))
	{
		strcpy (num, "");
		t2 = num;

		while (isdigit((int) *t1))
		{
			*t2 = *t1;
			t1++;
			t2++;
		}

		*t2 = 0;
		len = atoi(num);

		num[0] = *t1;

loop:
		t1++;
		switch (*t1)
		{
		case ',':
			num[1] = 0;
			current_point = MoveTo (current_point, len, num);
			t1++;
			break;
		case '.':
			num[1] = 0;
			current_point = MoveTo (current_point, len, num);
			printf ("Карта #%d\n", map_num);

			if ((current_point.x<0) && (current_point.x>-.001)) current_point.x = 0;
			if ((current_point.y<0) && (current_point.y>-.001)) current_point.y = 0;

			printf ("Координаты сокровища (%.3f,%.3f).\n", current_point.x, current_point.y);
			printf ("Расстояние до сокровища %.3f.\n\n", sqrt(current_point.x*current_point.x + current_point.y*current_point.y));

			fgets (str, 202, f);
			t1 = str;
			map_num++;
			current_point.x=0;
			current_point.y=0;
			//t1--;
			break;
		default:
			num[1] = *t1;
			num[2] = 0;
			current_point = MoveTo (current_point, len, num);
			strcpy (num, "");
			goto loop;
		}
	}

	fclose(f);
}

POINT MoveTo (POINT current_point, int len, char *num)
{
		if (!strcmp(num, "N")) current_point.y+=len;
		if (!strcmp(num, "E")) current_point.x+=len;
		if (!strcmp(num, "S")) current_point.y-=len;
		if (!strcmp(num, "W")) current_point.x-=len;
		if (!strcmp(num, "NE")) {current_point.y+=len*sqrt(.5); current_point.x+=len*sqrt(.5);}
		if (!strcmp(num, "SE")) {current_point.y-=len*sqrt(.5); current_point.x+=len*sqrt(.5);}
		if (!strcmp(num, "SW")) {current_point.y-=len*sqrt(.5); current_point.x-=len*sqrt(.5);}
		if (!strcmp(num, "NW")) {current_point.y+=len*sqrt(.5); current_point.x-=len*sqrt(.5);}

	return (current_point);
}