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newgrf_house.h
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1 /* $Id: newgrf_house.h 27928 2017-10-25 15:38:14Z frosch $ */
2
3 /*
4 * This file is part of OpenTTD.
5 * OpenTTD 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, version 2.
6 * OpenTTD 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.
7 * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
8 */
9
12 #ifndef NEWGRF_HOUSE_H
13 #define NEWGRF_HOUSE_H
14
15 #include "newgrf_callbacks.h"
16 #include "tile_cmd.h"
17 #include "house_type.h"
18 #include "newgrf_spritegroup.h"
19 #include "newgrf_town.h"
20
22 struct HouseScopeResolver : public ScopeResolver {
23 HouseID house_id;
24 TileIndex tile;
25 Town *town;
26 bool not_yet_constructed;
27 uint16 initial_random_bits;
28 uint32 watched_cargo_triggers;
29
30 HouseScopeResolver(ResolverObject &ro, HouseID house_id, TileIndex tile, Town *town,
31 bool not_yet_constructed, uint8 initial_random_bits, uint32 watched_cargo_triggers);
32
33 /* virtual */ uint32 GetRandomBits() const;
34 /* virtual */ uint32 GetVariable(byte variable, uint32 parameter, bool *available) const;
35 /* virtual */ uint32 GetTriggers() const;
36 };
37
39 struct HouseResolverObject : public ResolverObject {
40 HouseScopeResolver house_scope;
41 TownScopeResolver town_scope;
42
43 HouseResolverObject(HouseID house_id, TileIndex tile, Town *town,
44 CallbackID callback = CBID_NO_CALLBACK, uint32 param1 = 0, uint32 param2 = 0,
45 bool not_yet_constructed = false, uint8 initial_random_bits = 0, uint32 watched_cargo_triggers = 0);
46
47 /* virtual */ ScopeResolver *GetScope(VarSpriteGroupScope scope = VSG_SCOPE_SELF, byte relative = 0)
48 {
49 switch (scope) {
50 case VSG_SCOPE_SELF: return &this->house_scope;
51 case VSG_SCOPE_PARENT: return &this->town_scope;
52 default: return ResolverObject::GetScope(scope, relative);
53 }
54 }
55 };
56
70 struct HouseClassMapping {
71 uint32 grfid;
72 uint8 class_id;
73 };
74
75 HouseClassID AllocateHouseClassID(byte grf_class_id, uint32 grfid);
76
77 void InitializeBuildingCounts();
78 void IncreaseBuildingCount(Town *t, HouseID house_id);
79 void DecreaseBuildingCount(Town *t, HouseID house_id);
80
81 void DrawNewHouseTile(TileInfo *ti, HouseID house_id);
82 void AnimateNewHouseTile(TileIndex tile);
83 void AnimateNewHouseConstruction(TileIndex tile);
84
85 uint16 GetHouseCallback(CallbackID callback, uint32 param1, uint32 param2, HouseID house_id, Town *town, TileIndex tile,
86 bool not_yet_constructed = false, uint8 initial_random_bits = 0, uint32 watched_cargo_triggers = 0);
87 void WatchedCargoCallback(TileIndex tile, uint32 trigger_cargoes);
88
89 bool CanDeleteHouse(TileIndex tile);
90
91 bool NewHouseTileLoop(TileIndex tile);
92
93 enum HouseTrigger {
94 /* The tile of the house has been triggered during the tileloop. */
95 HOUSE_TRIGGER_TILE_LOOP = 0x01,
96 /*
97 * The top tile of a (multitile) building has been triggered during and all
98 * the tileloop other tiles of the same building get the same random value.
99 */
100 HOUSE_TRIGGER_TILE_LOOP_TOP = 0x02,
101 };
102 void TriggerHouse(TileIndex t, HouseTrigger trigger);
103
104 #endif /* NEWGRF_HOUSE_H */