#include "map.h"
#include "lzy.h"
#include "cfg.h"
#include "nuancierdesaut.h"
#include "weallstartsomewhere.h"
#include "wakywakysnakysnake.h"
#include "idkwymlol.h"
#include <stddef.h>

#define LOL(x) (unsigned char *)(x)
unsigned char *maps[] = {
	map_nuancierdesaut_json.data,      LOL("nuancier de saut"),
	map_weallstartsomewhere_json.data, LOL("we all start somewhere"),
	map_wakywakysnakysnake_json.data,  LOL("waky waky snaky snake"),
	map_idkwymlol_json.data,           LOL("idk wym lol"),
	NULL
};
unsigned int map_id = 0;

void
map_next(void)
{
	if (maps[map_id + 2] != NULL)
		map_id += 2;
	else
		map_id = 0;
}

int
map_width(void)
{
	return 25;
}

int
map_height(void)
{
	return 14;
}

int
map_get(int x, int y)
{
	if (x < 0 || y < 0 || x >= map_width() || y >= map_height())
		return 1;
	return maps[map_id][x + y * map_width()];
}

int
map_get_px(int x, int y)
{
	if (x < 0 || y < 0)
		return 1;
	return map_get(x / TSIZE, y / TSIZE);
}

static void
draw_outline(int x, int y)
{
	const int left = (map_get(x - 1, y) == 1);
	const int right = (map_get(x + 1, y) == 1);
	const int up = (map_get(x, y - 1) == 1);
	const int down = (map_get(x, y + 1) == 1);
	x *= TSIZE;
	y *= TSIZE;
	if (!left)  LZY_DrawRect(x, y, 1, TSIZE);
	if (!right) LZY_DrawRect(x + TSIZE - 1, y, 1, TSIZE);
	if (!up)    LZY_DrawRect(x, y, TSIZE, 1);
	if (!down)  LZY_DrawRect(x, y + TSIZE - 1, TSIZE, 1);
}

void
map_draw(void)
{
	LZY_DrawSetColor(BLACK);
	for (int y = 0; y < map_height(); y++)
		for (int x = 0; x < map_width(); x++)
			if (map_get(x, y) == 1)
				draw_outline(x, y);
}

void
map_draw_ui(void)
{
	const char *s = (char *)maps[1 + map_id];
	const int x = (DISPLAY_WIDTH - CHR_WIDTH * strlen(s)) / 2;
	const int y = (DISPLAY_HEIGHT - CHR_HEIGHT) / 2;
	LZY_DrawText(x, y, s);
}