aboutsummaryrefslogtreecommitdiff
path: root/engines/dm/dm.h
blob: 91684dafa36bef53fa90c7d0c519f4fd0b4c11af (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
/* 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 2
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/

/*
* Based on the Reverse Engineering work of Christophe Fontanel,
* maintainer of the Dungeon Master Encyclopaedia (http://dmweb.free.fr/)
*/

#ifndef DM_DM_H
#define DM_DM_H

#include "engines/engine.h"
#include "engines/savestate.h"

#include "common/random.h"
#include "common/savefile.h"
#include "common/str.h"
#include "common/memstream.h"

#include "advancedDetector.h"

#include "dm/console.h"

struct ADGameDescription;

namespace DM {

class DisplayMan;
class DungeonMan;
class EventManager;
class MenuMan;
class ChampionMan;
class ObjectMan;
class InventoryMan;
class TextMan;
class MovesensMan;
class GroupMan;
class Timeline;
class ProjExpl;
class DialogMan;
class SoundMan;

enum OriginalSaveFormat {
	kDMSaveFormatAcceptAny = -1,
	kDMSaveFormatEndOfList = 0,
	kDMSaveFormatNone = 0,
	kDMSaveFormatAtari = 1,
	kDMSaveFormatAmigaPC98FmTowns = 2,
	kCSBSaveFormatAtari = 2,
	kDMSaveFormatAppleIIgs = 3,
	kDMSaveFormatAmiga36PC = 5,
	kCSBSaveFormatAmigaPC98FmTowns = 5,
	kDMSaveFormatTotal
};

enum OriginalSavePlatform {
	kDMSavePlatformAcceptAny = -1,
	kDMSavePlatformEndOfList = 0,
	kDMSavePlatformNone = 0,
	kDMSavePlatformAtariSt = 1, // @ C1_PLATFORM_ATARI_ST   
	kDMSavePlatformAppleIIgs = 2, // @ C2_PLATFORM_APPLE_IIGS 
	kDMSavePlatformAmiga = 3, // @ C3_PLATFORM_AMIGA      
	kDMSavePlatformPC98 = 5, // @ C5_PLATFORM_PC98       
	kDMSavePlatformX68000 = 6, // @ C6_PLATFORM_X68000     
	kDMSavePlatformFmTownsEN = 7, // @ C7_PLATFORM_FM_TOWNS_EN
	kDMSavePlatformFmTownsJP = 8, // @ C8_PLATFORM_FM_TOWNS_JP
	kDMSavePlatformPC = 9, // @ C9_PLATFORM_PC
	kDMSavePlatformTotal
};

enum SaveTarget {
	kDMSaveTargetAcceptAny = -1,
	kDMSaveTargetEndOfList = 0,
	kDMSaveTargetNone = 0,
	kDMSaveTargetDM21 = 1,
	kDMSaveTargetTotal
};

enum Direction {
	kDMDirNorth = 0,
	kDMDirEast = 1,
	kDMDirSouth = 2,
	kDMDirWest = 3
};

enum ThingType {
	kDMThingTypeParty = -1,  // @ CM1_THING_TYPE_PARTY
	kDMThingTypeDoor = 0, // @ C00_THING_TYPE_DOOR       
	kDMThingTypeTeleporter = 1, // @ C01_THING_TYPE_TELEPORTER 
	kDMstringTypeText = 2, // @ C02_THING_TYPE_TEXTSTRING 
	kDMThingTypeSensor = 3,  // @ C03_THING_TYPE_SENSOR     
	kDMThingTypeGroup = 4, // @ C04_THING_TYPE_GROUP 
	kDMThingTypeWeapon = 5, // @ C05_THING_TYPE_WEAPON
	kDMThingTypeArmour = 6, // @ C06_THING_TYPE_ARMOUR
	kDMThingTypeScroll = 7,  // @ C07_THING_TYPE_SCROLL     
	kDMThingTypePotion = 8,  // @ C08_THING_TYPE_POTION     
	kDMThingTypeContainer = 9,  // @ C09_THING_TYPE_CONTAINER  
	kDMThingTypeJunk = 10,  // @ C10_THING_TYPE_JUNK      
	kDMThingTypeProjectile = 14,  // @ C14_THING_TYPE_PROJECTILE
	kDMThingTypeExplosion = 15,  // @ C15_THING_TYPE_EXPLOSION 
	kDMThingTypeTotal = 16 // +1 than the last (explosionThingType)
}; // @ C[00..15]_THING_TYPE_...

enum Cell {
	kDMCellAny = -1, // @ CM1_CELL_ANY      
	kDMCellNorthWest = 0, // @ C00_CELL_NORTHWEST 
	kDMCellNorthEast = 1, // @ C01_CELL_NORTHEAST 
	kDMCellSouthEast = 2, // @ C02_CELL_SOUTHEAST 
	kDMCellSouthWest = 3 // @ C03_CELL_SOUTHWEST 
};

enum GameMode {
	kDMModeLoadSavedGame = 0, // @ C000_MODE_LOAD_SAVED_GAME        
	kDMModeLoadDungeon = 1, // @ C001_MODE_LOAD_DUNGEON           
	kDMModeWaitingOnEntrance = 99, // @ C099_MODE_WAITING_ON_ENTRANCE   
	kDMModeEntranceDrawCredits = 202 // @ C202_MODE_ENTRANCE_DRAW_CREDITS 
};

enum LoadgameResult {
	kDMLoadgameFailure = -1, // @ CM1_LOAD_GAME_FAILURE
	kDMLoadgameSuccess = 1// @ C01_LOAD_GAME_SUCCESS
};

enum MapIndice {
	kDMMapIndexNone = -1, // @ CM1_MAP_INDEX_NONE       
	kDMMapIndexEntrance = 255 // @ C255_MAP_INDEX_ENTRANCE 
};

#define kDMMaskDecodeEvenIfInvisible 0x8000 // @ MASK0x8000_DECODE_EVEN_IF_INVISIBLE
#define kDMMaskMergeCycles 0x8000 // @ MASK0x8000_MERGE_CYCLES

#define kDMSlotBoxInventoryFirstSlot 8  // @ C08_SLOT_BOX_INVENTORY_FIRST_SLOT   
#define kDMSlotBoxInventoryActionHand 9 // @ C09_SLOT_BOX_INVENTORY_ACTION_HAND  
#define kDMSlotBoxChestFirstSlot 38     // @ C38_SLOT_BOX_CHEST_FIRST_SLOT

struct DMADGameDescription {
	ADGameDescription _desc;

	SaveTarget _saveTargetToWrite;
	OriginalSaveFormat _origSaveFormatToWrite;
	OriginalSavePlatform _origPlatformToWrite;

	SaveTarget _saveTargetToAccept[kDMSaveTargetTotal + 1];
	OriginalSaveFormat _saveFormatToAccept[kDMSaveFormatTotal + 1];
	OriginalSavePlatform _origPlatformToAccept[kDMSavePlatformTotal + 1];
};

class Thing {
public:
	uint16 _data;
	static const Thing _none; // @ C0xFFFF_THING_NONE
	static const Thing _endOfList; // @ C0xFFFE_THING_ENDOFLIST
	static const Thing _firstExplosion; // @ C0xFF80_THING_FIRST_EXPLOSION            
	static const Thing _explFireBall; // @ C0xFF80_THING_EXPLOSION_FIREBALL         
	static const Thing _explSlime; // @ C0xFF81_THING_EXPLOSION_SLIME            
	static const Thing _explLightningBolt; // @ C0xFF82_THING_EXPLOSION_LIGHTNING_BOLT   
	static const Thing _explHarmNonMaterial; // @ C0xFF83_THING_EXPLOSION_HARM_NON_MATERIAL
	static const Thing _explOpenDoor; // @ C0xFF84_THING_EXPLOSION_OPEN_DOOR        
	static const Thing _explPoisonBolt; // @ C0xFF86_THING_EXPLOSION_POISON_BOLT      
	static const Thing _explPoisonCloud; // @ C0xFF87_THING_EXPLOSION_POISON_CLOUD     
	static const Thing _explSmoke; // @ C0xFFA8_THING_EXPLOSION_SMOKE            
	static const Thing _explFluxcage; // @ C0xFFB2_THING_EXPLOSION_FLUXCAGE         
	static const Thing _explRebirthStep1; // @ C0xFFE4_THING_EXPLOSION_REBIRTH_STEP1    
	static const Thing _explRebirthStep2; // @ C0xFFE5_THING_EXPLOSION_REBIRTH_STEP2    
	static const Thing _party; // @ C0xFFFF_THING_PARTY  

	Thing() : _data(0) {}
	Thing(const Thing &other) { set(other._data); }
	explicit Thing(uint16 d) { set(d); }

	void set(uint16 d) {
		_data = d;
	}

	byte getCell() const { return _data >> 14; }
	ThingType getType() const { return (ThingType)((_data >> 10) & 0xF); }
	uint16 getIndex() const { return _data & 0x3FF; }

	void setCell(uint16 cell) { _data = (_data & ~(0x3 << 14)) | ((cell & 0x3) << 14); }
	void setType(uint16 type) { _data = (_data & ~(0xF << 10)) | ((type & 0xF) << 10); }
	void setIndex(uint16 index) { _data = (_data & ~0x3FF) | (index & 0x3FF); }

	uint16 getTypeAndIndex() { return _data & 0x3FFF; }
	uint16 toUint16() const { return _data; } // I don't like 'em cast operators
	bool operator==(const Thing &rhs) const { return _data == rhs._data; }
	bool operator!=(const Thing &rhs) const { return _data != rhs._data; }
}; // @ THING

#define setFlag(val, mask) ((val) |= (mask))
#define getFlag(val, mask) ((val) & (mask))
#define clearFlag(val, mask) ((val) &= (~(mask))) // @ M09_CLEAR

// Note: F0026_MAIN_GetBoundedValue<T> has been replaced by CLIP<T>

#define CALL_MEMBER_FN(object,ptrToMember)  ((object).*(ptrToMember))

struct SaveGameHeader {
	byte _version;
	SaveStateDescriptor _descr;
};

class DMEngine : public Engine {
private:
	void startGame(); // @ F0462_START_StartGame_CPSF
	void processNewPartyMap(uint16 mapIndex); // @ F0003_MAIN_ProcessNewPartyMap_CPSE
	void initializeGame(); // @ F0463_START_InitializeGame_CPSADEF
	void initMemoryManager(); // @ F0448_STARTUP1_InitializeMemoryManager_CPSADEF
	void gameloop(); // @ F0002_MAIN_GameLoop_CPSDF
	void initConstants();
	Common::String getSavefileName(uint16 slot);
	void writeSaveGameHeader(Common::OutSaveFile *out, const Common::String &saveName);
	bool writeCompleteSaveFile(int16 slot, Common::String &desc, int16 saveAndPlayChoice);
	void drawEntrance(); // @ F0439_STARTEND_DrawEntrance
	void fuseSequenceUpdate(); // @ F0445_STARTEND_FuseSequenceUpdate
	void processEntrance(); // @ F0441_STARTEND_ProcessEntrance
	void openEntranceDoors(); // @ F0438_STARTEND_OpenEntranceDoors
	void drawTittle(); // @ F0437_STARTEND_DrawTitle

public:
	explicit DMEngine(OSystem *syst, const DMADGameDescription *gameDesc);
	~DMEngine();
	virtual bool hasFeature(EngineFeature f) const;

	virtual Common::Error loadGameState(int slot);
	virtual bool canLoadGameStateCurrently();

	GUI::Debugger *getDebugger() { return _console; }

	void delay(uint16 verticalBlank); // @ F0022_MAIN_Delay
	uint16 getScaledProduct(uint16 val, uint16 scale, uint16 vale2); // @ F0030_MAIN_GetScaledProduct
	uint16 getRandomNumber(uint32 max) { return _rnd->getRandomNumber(max - 1); }
	int16 ordinalToIndex(int16 val); // @ M01_ORDINAL_TO_INDEX
	int16 indexToOrdinal(int16 val); // @ M00_INDEX_TO_ORDINAL
	virtual Common::Error run(); // @ main
	void saveGame(); // @ F0433_STARTEND_ProcessCommand140_SaveGame_CPSCDF
	LoadgameResult loadgame(int16 slot); // @ F0435_STARTEND_LoadGame_CPSF
	void endGame(bool doNotDrawCreditsOnly); // @ F0444_STARTEND_Endgame

	void entranceDrawCredits();
	void fuseSequence(); // @ F0446_STARTEND_FuseSequence
	Common::Language getGameLanguage();

	Direction turnDirRight(int16 dir); // @ M17_NEXT
	Direction turnDirLeft(int16 dir); // @ M19_PREVIOUS
	Direction returnOppositeDir(int16 dir);	// @ M18_OPPOSITE
	bool isOrientedWestEast(int16 dir);	// @ M16_IS_ORIENTED_WEST_EAST
	uint16 normalizeModulo4(int16 dir); // @ M21_NORMALIZE

	int32 filterTime(int32 mapTime); // @ M30_TIME
	int32 setMapAndTime(uint32 map, uint32 time); // @ M33_SET_MAP_AND_TIME
	uint16 getMap(int32 mapTime); // @ M29_MAP
	Thing thingWithNewCell(Thing thing, int16 cell); // @ M15_THING_WITH_NEW_CELL
	int16 getDistance(int16 mapx1, int16 mapy1, int16 mapx2, int16 mapy2); // @ M38_DISTANCE
	int32 setMap(int32 mapTime, uint32 map); // @ M31_setMap


private:
	uint16 _dungeonId; // @ G0526_ui_DungeonID
	byte *_entranceDoorAnimSteps[10]; // @ G0562_apuc_Bitmap_EntranceDoorAnimationSteps
	byte *_interfaceCredits; // @ G0564_puc_Graphic5_InterfaceCredits
	Common::RandomSource *_rnd;
	
	byte *_savedScreenForOpenEntranceDoors; // ad-hoc HACK
	const DMADGameDescription *_gameVersion;
	bool _canLoadFromGMM;
public:
	Console *_console;
	DisplayMan *_displayMan;
	DungeonMan *_dungeonMan;
	EventManager *_eventMan;
	MenuMan *_menuMan;
	ChampionMan *_championMan;
	ObjectMan *_objectMan;
	InventoryMan *_inventoryMan;
	TextMan *_textMan;
	MovesensMan *_moveSens;
	GroupMan *_groupMan;
	Timeline *_timeline;
	ProjExpl *_projexpl;
	DialogMan *_dialog;
	SoundMan *_sound;

	Common::MemoryWriteStreamDynamic *_saveThumbnail;

	bool _engineShouldQuit;
	int _loadSaveSlotAtRuntime;

	GameMode _gameMode; // @ G0298_B_NewGame
	bool _restartGameRequest; // @ G0523_B_RestartGameRequested

	bool _stopWaitingForPlayerInput; // @ G0321_B_StopWaitingForPlayerInput
	bool _gameTimeTicking; // @ G0301_B_GameTimeTicking
	bool _restartGameAllowed; // @ G0524_B_RestartGameAllowed
	bool _pressingEye; // @ G0331_B_PressingEye
	bool _stopPressingEye; // @ G0332_B_StopPressingEye
	bool _pressingMouth; // @ G0333_B_PressingMouth
	bool _stopPressingMouth; // @ G0334_B_StopPressingMouth
	bool _highlightBoxInversionRequested; // @ G0340_B_HighlightBoxInversionRequested
	int16 _projectileDisableMovementTicks; // @ G0311_i_ProjectileDisabledMovementTicks
	int16 _lastProjectileDisabledMovementDirection; // @ G0312_i_LastProjectileDisabledMovementDirection
	bool _gameWon; // @ G0302_B_GameWon
	int16 _newPartyMapIndex; // @ G0327_i_NewPartyMapIndex
	bool _setMousePointerToObjectInMainLoop; // @ G0325_B_SetMousePointerToObjectInMainLoop
	int16 _disabledMovementTicks; // @ G0310_i_DisabledMovementTicks

	int8 _dirIntoStepCountEast[4]; // @ G0233_ai_Graphic559_DirectionToStepEastCount
	int8 _dirIntoStepCountNorth[4]; // @ G0234_ai_Graphic559_DirectionToStepNorthCount
	int32 _gameTime; // @ G0313_ul_GameTime
	char _stringBuildBuffer[128]; // @ G0353_ac_StringBuildBuffer
	int16 _waitForInputMaxVerticalBlankCount; // @ G0318_i_WaitForInputMaximumVerticalBlankCount
};

bool readSaveGameHeader(Common::InSaveFile *in, SaveGameHeader *header);

} // End of namespace DM

#endif