summaryrefslogtreecommitdiff
path: root/src/group_cmd.cpp
blob: 2726c59f91db6e0682f1c32ebd7f620c253ee640 (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
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
/* $Id$ */

/** @file group_cmd.cpp Handling of the engine groups */

#include "stdafx.h"
#include "openttd.h"
#include "variables.h"
#include "functions.h"
#include "player.h"
#include "table/strings.h"
#include "command.h"
#include "vehicle.h"
#include "saveload.h"
#include "debug.h"
#include "group.h"
#include "train.h"
#include "aircraft.h"
#include "string.h"
#include "window.h"
#include "vehicle_gui.h"
#include "strings.h"
#include "misc/autoptr.hpp"

/**
 * Update the num engines of a groupID. Decrease the old one and increase the new one
 * @note called in SetTrainGroupID and UpdateTrainGroupID
 * @param i     EngineID we have to update
 * @param old_g index of the old group
 * @param new_g index of the new group
 */
static inline void UpdateNumEngineGroup(EngineID i, GroupID old_g, GroupID new_g)
{
	if (old_g != new_g) {
		/* Decrease the num engines of EngineID i of the old group if it's not the default one */
		if (!IsDefaultGroupID(old_g) && IsValidGroupID(old_g)) GetGroup(old_g)->num_engines[i]--;

		/* Increase the num engines of EngineID i of the new group if it's not the new one */
		if (!IsDefaultGroupID(new_g) && IsValidGroupID(new_g)) GetGroup(new_g)->num_engines[i]++;
	}
}


DEFINE_OLD_POOL_GENERIC(Group, Group)


Group::Group(StringID str)
{
	this->string_id = str;
}

Group::~Group()
{
	DeleteName(this->string_id);
	this->string_id = STR_NULL;
}

bool Group::IsValid() const
{
	return this->string_id != STR_NULL;
}

void InitializeGroup(void)
{
	_Group_pool.CleanPool();
	_Group_pool.AddBlockToPool();
}


static WindowClass GetWCForVT(VehicleType vt)
{
	switch (vt) {
		default:
		case VEH_TRAIN:    return WC_TRAINS_LIST;
		case VEH_ROAD:     return WC_ROADVEH_LIST;
		case VEH_SHIP:     return WC_SHIPS_LIST;
		case VEH_AIRCRAFT: return WC_AIRCRAFT_LIST;
	}
}


/**
 * Create a new vehicle group.
 * @param tile unused
 * @param p1   vehicle type
 * @param p2   unused
 */
CommandCost CmdCreateGroup(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
{
	VehicleType vt = (VehicleType)p1;
	if (!IsPlayerBuildableVehicleType(vt)) return CMD_ERROR;

	AutoPtrT<Group> g_auto_delete;

	Group *g = new Group(STR_EMPTY);
	if (g == NULL) return CMD_ERROR;

	g_auto_delete = g;

	if (flags & DC_EXEC) {
		g->owner = _current_player;
		g->replace_protection = false;
		g->vehicle_type = vt;

		InvalidateWindowData(GetWCForVT(vt), (vt << 11) | VLW_GROUP_LIST | _current_player);

		g_auto_delete.Detach();
	}

	return CommandCost();
}


/**
 * Add all vehicles in the given group to the default group and then deletes the group.
 * @param tile unused
 * @param p1   index of array group
 *      - p1 bit 0-15 : GroupID
 * @param p2   unused
 */
CommandCost CmdDeleteGroup(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
{
	if (!IsValidGroupID(p1)) return CMD_ERROR;

	Group *g = GetGroup(p1);
	if (g->owner != _current_player) return CMD_ERROR;

	if (flags & DC_EXEC) {
		Vehicle *v;

		/* Add all vehicles belong to the group to the default group */
		FOR_ALL_VEHICLES(v) {
			if (v->group_id == g->index && v->type == g->vehicle_type) v->group_id = DEFAULT_GROUP;
		}

		/* If we set an autoreplace for the group we delete, remove it. */
		if (_current_player < MAX_PLAYERS) {
			Player *p;
			EngineRenew *er;

			p = GetPlayer(_current_player);
			FOR_ALL_ENGINE_RENEWS(er) {
				if (er->group_id == g->index) RemoveEngineReplacementForPlayer(p, er->from, g->index, flags);
			}
		}

		VehicleType vt = g->vehicle_type;

		/* Delete the Replace Vehicle Windows */
		DeleteWindowById(WC_REPLACE_VEHICLE, g->vehicle_type);
		delete g;

		InvalidateWindowData(GetWCForVT(vt), (vt << 11) | VLW_GROUP_LIST | _current_player);
	}

	return CommandCost();
}

static bool IsUniqueGroupName(const char *name)
{
	const Group *g;
	char buf[512];

	FOR_ALL_GROUPS(g) {
		SetDParam(0, g->index);
		GetString(buf, STR_GROUP_NAME, lastof(buf));
		if (strcmp(buf, name) == 0) return false;
	}

	return true;
}

/**
 * Rename a group
 * @param tile unused
 * @param p1   index of array group
 *   - p1 bit 0-15 : GroupID
 * @param p2   unused
 */
CommandCost CmdRenameGroup(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
{
	if (!IsValidGroupID(p1) || StrEmpty(_cmd_text)) return CMD_ERROR;

	Group *g = GetGroup(p1);
	if (g->owner != _current_player) return CMD_ERROR;

	if (!IsUniqueGroupName(_cmd_text)) return_cmd_error(STR_NAME_MUST_BE_UNIQUE);

	/* Create the name */
	StringID str = AllocateName(_cmd_text, 0);
	if (str == STR_NULL) return CMD_ERROR;

	if (flags & DC_EXEC) {
		/* Delete the old name */
		DeleteName(g->string_id);
		/* Assign the new one */
		g->string_id = str;

		InvalidateWindowData(GetWCForVT(g->vehicle_type), (g->vehicle_type << 11) | VLW_GROUP_LIST | _current_player);
	}

	return CommandCost();
}


/**
 * Add a vehicle to a group
 * @param tile unused
 * @param p1   index of array group
 *   - p1 bit 0-15 : GroupID
 * @param p2   vehicle to add to a group
 *   - p2 bit 0-15 : VehicleID
 */
CommandCost CmdAddVehicleGroup(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
{
	GroupID new_g = p1;

	if (!IsValidVehicleID(p2) || (!IsValidGroupID(new_g) && !IsDefaultGroupID(new_g))) return CMD_ERROR;

	Vehicle *v = GetVehicle(p2);

	if (IsValidGroupID(new_g)) {
		Group *g = GetGroup(new_g);
		if (g->owner != _current_player || g->vehicle_type != v->type) return CMD_ERROR;
	}

	if (v->owner != _current_player || !v->IsPrimaryVehicle()) return CMD_ERROR;

	if (flags & DC_EXEC) {
		DecreaseGroupNumVehicle(v->group_id);
		IncreaseGroupNumVehicle(new_g);

		switch (v->type) {
			default: NOT_REACHED();
			case VEH_TRAIN:
				SetTrainGroupID(v, new_g);
				break;
			case VEH_ROAD:
			case VEH_SHIP:
			case VEH_AIRCRAFT:
				if (IsEngineCountable(v)) UpdateNumEngineGroup(v->engine_type, v->group_id, new_g);
				v->group_id = new_g;
				break;
		}

		/* Update the Replace Vehicle Windows */
		InvalidateWindow(WC_REPLACE_VEHICLE, v->type);
		InvalidateWindowData(GetWCForVT(v->type), (v->type << 11) | VLW_GROUP_LIST | _current_player);
	}

	return CommandCost();
}

/**
 * Add all shared vehicles of all vehicles from a group
 * @param tile unused
 * @param p1   index of group array
 *  - p1 bit 0-15 : GroupID
 * @param p2   type of vehicles
 */
CommandCost CmdAddSharedVehicleGroup(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
{
	VehicleType type = (VehicleType)p2;
	if (!IsValidGroupID(p1) || !IsPlayerBuildableVehicleType(type)) return CMD_ERROR;

	if (flags & DC_EXEC) {
		Vehicle *v;
		VehicleType type = (VehicleType)p2;
		GroupID id_g = p1;

		/* Find the first front engine which belong to the group id_g
		 * then add all shared vehicles of this front engine to the group id_g */
		FOR_ALL_VEHICLES(v) {
			if (v->type == type && v->IsPrimaryVehicle()) {
				if (v->group_id != id_g) continue;

				/* For each shared vehicles add it to the group */
				for (Vehicle *v2 = GetFirstVehicleFromSharedList(v); v2 != NULL; v2 = v2->next_shared) {
					if (v2->group_id != id_g) CmdAddVehicleGroup(tile, flags, id_g, v2->index);
				}
			}
		}

		InvalidateWindowData(GetWCForVT(type), (type << 11) | VLW_GROUP_LIST | _current_player);
	}

	return CommandCost();
}


/**
 * Remove all vehicles from a group
 * @param tile unused
 * @param p1   index of group array
 * - p1 bit 0-15 : GroupID
 * @param p2   type of vehicles
 */
CommandCost CmdRemoveAllVehiclesGroup(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
{
	VehicleType type = (VehicleType)p2;
	if (!IsValidGroupID(p1) || !IsPlayerBuildableVehicleType(type)) return CMD_ERROR;

	Group *g = GetGroup(p1);
	if (g->owner != _current_player) return CMD_ERROR;

	if (flags & DC_EXEC) {
		GroupID old_g = p1;
		Vehicle *v;

		/* Find each Vehicle that belongs to the group old_g and add it to the default group */
		FOR_ALL_VEHICLES(v) {
			if (v->type == type && v->IsPrimaryVehicle()) {
				if (v->group_id != old_g) continue;

				/* Add The Vehicle to the default group */
				CmdAddVehicleGroup(tile, flags, DEFAULT_GROUP, v->index);
			}
		}

		InvalidateWindowData(GetWCForVT(type), (type << 11) | VLW_GROUP_LIST | _current_player);
	}

	return CommandCost();
}


/**
 * (Un)set global replace protection from a group
 * @param tile unused
 * @param p1   index of group array
 * - p1 bit 0-15 : GroupID
 * @param p2
 * - p2 bit 0    : 1 to set or 0 to clear protection.
 */
CommandCost CmdSetGroupReplaceProtection(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
{
	if (!IsValidGroupID(p1)) return CMD_ERROR;

	Group *g = GetGroup(p1);
	if (g->owner != _current_player) return CMD_ERROR;

	if (flags & DC_EXEC) {
		g->replace_protection = HASBIT(p2, 0);

		InvalidateWindowData(GetWCForVT(g->vehicle_type), (g->vehicle_type << 11) | VLW_GROUP_LIST | _current_player);
	}

	return CommandCost();
}

/**
 * Decrease the num_vehicle variable before delete an front engine from a group
 * @note Called in CmdSellRailWagon and DeleteLasWagon,
 * @param v     FrontEngine of the train we want to remove.
 */
void RemoveVehicleFromGroup(const Vehicle *v)
{
	if (!v->IsValid() || !v->IsPrimaryVehicle()) return;

	if (!IsDefaultGroupID(v->group_id)) DecreaseGroupNumVehicle(v->group_id);
}


/**
 * Affect the groupID of a train to new_g.
 * @note called in CmdAddVehicleGroup and CmdMoveRailVehicle
 * @param v     First vehicle of the chain.
 * @param new_g index of array group
 */
void SetTrainGroupID(Vehicle *v, GroupID new_g)
{
	if (!IsValidGroupID(new_g) && !IsDefaultGroupID(new_g)) return;

	assert(v->IsValid() && v->type == VEH_TRAIN && IsFrontEngine(v));

	for (Vehicle *u = v; u != NULL; u = u->Next()) {
		if (IsEngineCountable(u)) UpdateNumEngineGroup(u->engine_type, u->group_id, new_g);

		u->group_id = new_g;
	}

	/* Update the Replace Vehicle Windows */
	InvalidateWindow(WC_REPLACE_VEHICLE, VEH_TRAIN);
}


/**
 * Recalculates the groupID of a train. Should be called each time a vehicle is added
 * to/removed from the chain,.
 * @note this needs to be called too for 'wagon chains' (in the depot, without an engine)
 * @note Called in CmdBuildRailVehicle, CmdBuildRailWagon, CmdMoveRailVehicle, CmdSellRailWagon
 * @param v First vehicle of the chain.
 */
void UpdateTrainGroupID(Vehicle *v)
{
	assert(v->IsValid() && v->type == VEH_TRAIN && (IsFrontEngine(v) || IsFreeWagon(v)));

	GroupID new_g = IsFrontEngine(v) ? v->group_id : (GroupID)DEFAULT_GROUP;
	for (Vehicle *u = v; u != NULL; u = u->Next()) {
		if (IsEngineCountable(u)) UpdateNumEngineGroup(u->engine_type, u->group_id, new_g);

		u->group_id = new_g;
	}

	/* Update the Replace Vehicle Windows */
	InvalidateWindow(WC_REPLACE_VEHICLE, VEH_TRAIN);
}


void RemoveAllGroupsForPlayer(const Player *p)
{
	Group *g;

	FOR_ALL_GROUPS(g) {
		if (p->index == g->owner) delete g;
	}
}


static const SaveLoad _group_desc[] = {
  SLE_VAR(Group, string_id,          SLE_UINT16),
  SLE_VAR(Group, num_vehicle,        SLE_UINT16),
  SLE_VAR(Group, owner,              SLE_UINT8),
  SLE_VAR(Group, vehicle_type,       SLE_UINT8),
  SLE_VAR(Group, replace_protection, SLE_BOOL),
  SLE_END()
};


static void Save_GROUP(void)
{
	Group *g;

	FOR_ALL_GROUPS(g) {
		SlSetArrayIndex(g->index);
		SlObject(g, _group_desc);
	}
}


static void Load_GROUP(void)
{
	int index;

	while ((index = SlIterateArray()) != -1) {
		Group *g = new (index) Group();
		SlObject(g, _group_desc);
	}
}

extern const ChunkHandler _group_chunk_handlers[] = {
	{ 'GRPS', Save_GROUP, Load_GROUP, CH_ARRAY | CH_LAST},
};