/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

#ifndef CHAMBER_ROOM_H
#define CHAMBER_ROOM_H

namespace Chamber {

#define SPOTFLG_1  0x01
#define SPOTFLG_2  0x02
#define SPOTFLG_8  0x08
#define SPOTFLG_10 0x10
#define SPOTFLG_20 0x20
#define SPOTFLG_40 0x40
#define SPOTFLG_80 0x80

/*static room object*/
/*TODO: manipulated from script, do not change*/
#include "common/pack-start.h"
typedef struct spot_t {
	byte sx;
	byte ex;
	byte sy;
	byte ey;
	byte flags;
	byte hint;
	uint16 command;
} spot_t;
#include "common/pack-end.h"

#define PERSFLAGS  0xF0
#define PERSFLG_10 0x10
#define PERSFLG_20 0x20
#define PERSFLG_40 0x40
#define PERSFLG_80 0x80

/*person*/
/*TODO: manipulated from script, do not change*/
#include "common/pack-start.h"
typedef struct pers_t {
	byte area;     /*location*/
	byte flags;    /*flags in bits 7..4 and room index in bits 3..0*/
	byte name;     /*name index*/
	byte index;    /*animations index (in lutins_table) in bits 7..3 , spot index in bits 2..0*/
	byte item;     /*inventory item index (1-based)*/
} pers_t;
#include "common/pack-end.h"

#define ANIMFLG_USESPOT 0x80

typedef struct animdesc_t {
	byte index;    /*flag in bit 7, animation index in bits 6..0*/
	union {
		struct {
			byte x, y;
		} coords;
		uint16 desc;
	} params;
} animdesc_t;

typedef struct vortanims_t {
	byte room;
	animdesc_t field_1;
	animdesc_t field_4;
	animdesc_t field_7;
	animdesc_t field_A;
} vortanims_t;

typedef struct turkeyanims_t {
	byte room;
	animdesc_t field_1;
	animdesc_t field_4;
} turkeyanims_t;

extern byte scratch_mem1[8010];
extern byte *scratch_mem2;

extern rect_t room_bounds_rect;

extern byte last_object_hint;
extern byte object_hint;
extern byte command_hint;
extern byte last_command_hint;

extern uint16 next_protozorqs_ticks;
extern uint16 next_vorts_ticks;
extern uint16 next_vorts_cmd;
extern uint16 next_turkey_ticks;
extern uint16 next_turkey_cmd;

#define MAX_SPRITES 16

extern byte *sprites_list[MAX_SPRITES];

#define MAX_DOORS 5

extern byte *doors_list[MAX_DOORS];

extern byte zone_palette;

extern spot_t *zone_spots;
extern spot_t *zone_spots_end;
extern spot_t *zone_spots_cur;

extern vortanims_t vortsanim_list[];
extern vortanims_t *vortanims_ptr;

extern turkeyanims_t turkeyanim_list[];
extern turkeyanims_t *turkeyanims_ptr;
extern pers_t *aspirant_ptr;
extern spot_t *aspirant_spot;
extern spot_t *found_spot;
extern byte **spot_sprite;

extern byte *lutin_mem;

extern byte skip_zone_transition;

extern byte in_de_profundis;

extern byte zone_name;
extern byte room_hint_bar_width;
extern byte zone_spr_index;
extern byte zone_obj_count;
extern byte room_hint_bar_coords_x;
extern byte room_hint_bar_coords_y;

extern uint16 drops_cleanup_time;

extern const byte patrol_route[];
extern const byte *timed_seq_ptr;

typedef struct thewalldoor_t {
	byte   height;
	byte   width;
	uint16    pitch;
	uint16    offs;
	byte   *pixels;
} thewalldoor_t;

extern thewalldoor_t the_wall_doors[2];

int16 isInRect(byte x, byte y, rect_t *rect);
int16 isCursorInRect(rect_t *rect);
void selectSpotCursor(void);

void checkHotspots(byte m, byte v);

void animateSpot(const animdesc_t *info);
byte *loadPuzzlToScratch(byte index);

void drawObjectHint(void);
void showObjectHint(byte *target);
void drawCommandHint(void);
void showCommandHint(byte *target);

void drawCharacterSprite(byte spridx, byte x, byte y, byte *target);
char drawZoneAniSprite(rect_t *rect, uint16 index, byte *target);

void drawHintsAndCursor(byte *target);

void drawTheWallDoors(void);
void mergeSpritesData(byte *target, uint16 pitch, byte *source, uint16 w, uint16 h);
void mergeSpritesDataFlip(byte *target, uint16 pitch, byte *source, uint16 w, uint16 h);

void refreshSpritesData(void);
void blitSpritesToBackBuffer(void);
byte *backupSpotImage(spot_t *spot, byte **spotback, byte *buffer);
void backupSpotsImages(void);

void selectPalette(void);
void selectSpecificPalette(byte index);

byte findSpotByFlags(byte mask, byte value);
byte selectPerson(byte offset);

void findPerson(void);

void beforeChangeZone(byte index);
void drawRoomItemsIndicator(void);
void drawRoomStaticObject(byte *aptr, byte *rx, byte *ry, byte *rw, byte *rh);
void drawRoomStatics(void);
void redrawRoomStatics(byte index, byte y_step);
void drawPersons(void);
void refreshZone(void);
void changeZone(byte index);

void drawSpots(byte *target);
void animateSpots(byte *target);

byte findInitialSpot(void);
void animRoomDoorOpen(byte index);
void animRoomDoorClose(byte index);

uint16 getPuzzlSprite(byte index, byte x, byte y, uint16 *w, uint16 *h, uint16 *ofs);

void bounceCurrentItem(byte flags, byte y);

void backupScreenOfSpecialRoom(void);
void restoreScreenOfSpecialRoom(void);

void theWallPhase3_DoorOpen1(void);
void theWallPhase0_DoorOpen2(void);
void theWallPhase1_DoorClose1(void);
void theWallPhase2_DoorClose2(void);

void prepareAspirant(void);
void prepareVorts(void);
void prepareTurkey(void);

void updateProtozorqs(void);
void checkGameTimeLimit(void);
void cleanupDroppedItems(void);

void resetAllPersons(void);

} // End of namespace Chamber

#endif