/*
 * Copyright (C) 2013  Patrick "P. J." McDermott
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this program.  If not, see
 * <http://www.gnu.org/licenses/>.
 */

#ifndef RESOURCE_MAP_H
#define RESOURCE_MAP_H

#include <SDL_stdinc.h>
#include "resource.h"
#include "palette.h"
#include "image.h"

enum map_palette_id {
	MAP_PALETTE_DEFAULT = 0,
	MAP_PALETTE_MORN,
	MAP_PALETTE_DAY,
	MAP_PALETTE_EVE,
	MAP_PALETTE_NIGHT,
	MAP_PALETTES_MAX
};
enum map_layer {
	MAP_LAYER_GROUND = 0,
	MAP_LAYER_OBJ_LOW,
	MAP_LAYER_OBJ_MID,
	MAP_LAYER_OBJ_HIGH,
	MAP_LAYER_COLLISION,
	MAP_LAYER_WEATHER,
	MAP_LAYERS_MAX
};
struct map_palette {
	struct palette *palette;
	Uint16 min;
};
struct tileset {
	struct resource res;
	char *dirname;
	char *name;
	int tilewidth;
	int tileheight;
	int width;
	int height;
	enum {
		TILESET_TYPE_IMAGE,
		TILESET_TYPE_COLLISION
	} type;
	struct image *image;
	Uint8 *collision_tiles;
	int cur_collision_tile;
};
struct map_tileset {
	struct tileset *tileset;
	Uint32 firstgid;
	struct map_tileset *next;
};
struct layer {
	struct map *map;
	Uint32 *tiles;
	char *encoding;
	char *compression;
	char *raw_data;
};
struct map_collision {
	enum {
		COLLISION_NONE = 0,
		COLLISION_CHAR,
		COLLISION_OBJ,
		COLLISION_EXIT
	} type;
	union {
/*		struct character *c;*/
		Uint8 o;
		struct map_exit *e;
	} data;
};
struct map_exit {
	struct map *map;
	int x;
	int y;
	int width;
	int height;
	char *target_map_name;
	struct map *target_map;
	int target_x_coord;
	int target_y_coord;
	struct map_exit *next;
};
struct map_spawn {
	struct map *map;
	int x;
	int y;
	int width;
	int height;
	int player;
	struct map_spawn *next;
};
struct map {
	struct resource res;
	char *dirname;
	/* TODO: Consider making these Uint16s. */
	int width;
	int height;
	int tilewidth;
	int tileheight;
	struct map_palette palettes[MAP_PALETTES_MAX];
	struct map_tileset *tilesets_head;
	struct map_tileset *tilesets_tail;
	struct layer layers[MAP_LAYERS_MAX];
	struct map_collision *collisions;
	struct map_exit *map_exits_head;
	struct map_exit *map_exits_tail;
	Uint32 cur_ts_firstgid;
};

struct map *map_get(const char *path);
void map_free(struct map *map);
void map_add_tileset(struct map *m, struct tileset *t, Uint32 firstgid);
struct map_palette *map_get_palette(struct map *m, const char *name);
struct layer *map_get_layer(struct map *m, const char *name);
void map_add_exit(struct map *m, struct map_exit *e);

#endif