#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include <limits.h>
#include <math.h>

#include "hexagon.h"

#include "tap.h"

int icmp(const void *ap, const void *bp) {
	int a;
	int b;
	
	a = *((int *)(ap));
	b = *((int *)(bp));

	return a-b;
}

void sort(int *r, int ct) {
	qsort(r, ct, sizeof *r, icmp);
}

int main(void) {
	int start;
	int i, count;
	int range[32];
	int testrange[32];

	plan_tests(7+4);

	printf("range = 1 from 3,3\n");
	start = HL_cantor_xy(3,3);
	count = HL_hexes_at_range(start, 1, range, 0);
	ok(count == 6, "6 hexes at range 1");
	count = HL_hexes_at_range(start, 1, range, count);
	sort(range, 6);
	testrange[0] = HL_cantor_xy(3,2);
	testrange[1] = HL_cantor_xy(3,4);
	testrange[2] = HL_cantor_xy(4,3);
	testrange[3] = HL_cantor_xy(4,2);
	testrange[4] = HL_cantor_xy(2,3);
	testrange[5] = HL_cantor_xy(2,2);
	sort(testrange, 6);
	for (i = 0; i < count; i++) {
		ok(range[i] == testrange[i], "3, 3 range 1 hex %d", testrange[i]);
	}

	start = HL_cantor_xy(0,3);
	count = HL_hexes_at_range(start, 1, range, 0);
	ok(count == 6, "6 hexes at range1 from 0,3");

	start = HL_cantor_xy(-1,5);
	count = HL_hexes_at_range(start, 1, range, 0);
	ok(count == 6, "6 hexes at range1 from -1,5");

	start = HL_cantor_xy(-2,3);
	count = HL_hexes_at_range(start, 1, range, 0);
	ok(count == 6, "6 hexes at range1 from -2,3");

	start = HL_cantor_xy(3,3);
	count = HL_hexes_at_range(start, 2, range, 0);
	ok(count == 12, "6 hexes at range1 from 3,3");

	return exit_status();
}