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
|
/* $Id$ */
/*
* This file is part of OpenTTD.
* 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.
* 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.
* 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/>.
*/
/** @file ai_tile.cpp Implementation of AITile. */
#include "ai_tile.hpp"
#include "ai_map.hpp"
#include "ai_town.hpp"
#include "ai_log.hpp"
#include "../../station_func.h"
#include "../../company_func.h"
#include "../../road_map.h"
#include "../../water_map.h"
#include "../../clear_map.h"
#include "../../town.h"
#include "../../landscape.h"
/* static */ bool AITile::IsBuildable(TileIndex tile)
{
if (!::IsValidTile(tile)) return false;
switch (::GetTileType(tile)) {
default: return false;
case MP_CLEAR: return true;
case MP_TREES: return true;
case MP_WATER: return IsCoast(tile);
case MP_ROAD:
/* Tram bits aren't considered buildable */
if (::GetRoadTypes(tile) != ROADTYPES_ROAD) return false;
/* Depots and crossings aren't considered buildable */
if (::GetRoadTileType(tile) != ROAD_TILE_NORMAL) return false;
if (CountBits(::GetRoadBits(tile, ROADTYPE_ROAD)) != 1) return false;
if (::IsRoadOwner(tile, ROADTYPE_ROAD, OWNER_TOWN)) return true;
if (::IsRoadOwner(tile, ROADTYPE_ROAD, _current_company)) return true;
return false;
}
}
/* static */ bool AITile::IsBuildableRectangle(TileIndex tile, uint width, uint height)
{
uint tx, ty;
tx = AIMap::GetTileX(tile);
ty = AIMap::GetTileY(tile);
for (uint x = tx; x < width + tx; x++) {
for (uint y = ty; y < height + ty; y++) {
if (!IsBuildable(AIMap::GetTileIndex(x, y))) return false;
}
}
return true;
}
/* static */ bool AITile::IsWaterTile(TileIndex tile)
{
if (!::IsValidTile(tile)) return false;
return ::IsTileType(tile, MP_WATER) && !::IsCoast(tile);
}
/* static */ bool AITile::IsCoastTile(TileIndex tile)
{
if (!::IsValidTile(tile)) return false;
return ::IsTileType(tile, MP_WATER) && ::IsCoast(tile);
}
/* static */ bool AITile::IsStationTile(TileIndex tile)
{
if (!::IsValidTile(tile)) return false;
return ::IsTileType(tile, MP_STATION);
}
/* static */ bool AITile::IsSteepSlope(Slope slope)
{
if ((slope & ~(SLOPE_ELEVATED | SLOPE_STEEP | SLOPE_HALFTILE_MASK)) != 0) return false;
return ::IsSteepSlope((::Slope)slope);
}
/* static */ bool AITile::IsHalftileSlope(Slope slope)
{
if ((slope & ~(SLOPE_ELEVATED | SLOPE_STEEP | SLOPE_HALFTILE_MASK)) != 0) return false;
return ::IsHalftileSlope((::Slope)slope);
}
/* static */ bool AITile::HasTreeOnTile(TileIndex tile)
{
return ::IsTileType(tile, MP_TREES);
}
/* static */ bool AITile::IsFarmTile(TileIndex tile)
{
return (::IsTileType(tile, MP_CLEAR) && ::IsClearGround(tile, CLEAR_FIELDS));
}
/* static */ bool AITile::IsRockTile(TileIndex tile)
{
return (::IsTileType(tile, MP_CLEAR) && ::IsClearGround(tile, CLEAR_ROCKS));
}
/* static */ bool AITile::IsRoughTile(TileIndex tile)
{
return (::IsTileType(tile, MP_CLEAR) && ::IsClearGround(tile, CLEAR_ROUGH));
}
/* static */ bool AITile::IsSnowTile(TileIndex tile)
{
return (::IsTileType(tile, MP_CLEAR) && ::IsClearGround(tile, CLEAR_SNOW));
}
/* static */ bool AITile::IsDesertTile(TileIndex tile)
{
return (::IsTileType(tile, MP_CLEAR) && ::IsClearGround(tile, CLEAR_DESERT));
}
/* static */ AITile::Slope AITile::GetSlope(TileIndex tile)
{
if (!::IsValidTile(tile)) return SLOPE_INVALID;
return (Slope)::GetTileSlope(tile, NULL);
}
/* static */ AITile::Slope AITile::GetComplementSlope(Slope slope)
{
if ((slope & ~SLOPE_ELEVATED) != 0) return SLOPE_INVALID;
return (Slope)::ComplementSlope((::Slope)slope);
}
/* static */ int32 AITile::GetMinHeight(TileIndex tile)
{
if (!::IsValidTile(tile)) return -1;
return ::GetTileZ(tile) / ::TILE_HEIGHT;
}
/* static */ int32 AITile::GetMaxHeight(TileIndex tile)
{
if (!::IsValidTile(tile)) return -1;
return ::GetTileMaxZ(tile) / ::TILE_HEIGHT;
}
/* static */ int32 AITile::GetCornerHeight(TileIndex tile, Corner corner)
{
if (!::IsValidTile(tile) || !::IsValidCorner((::Corner)corner)) return -1;
uint z;
::Slope slope = ::GetTileSlope(tile, &z);
return (z + ::GetSlopeZInCorner(slope, (::Corner)corner)) / ::TILE_HEIGHT;
}
/* static */ AICompany::CompanyID AITile::GetOwner(TileIndex tile)
{
if (!::IsValidTile(tile)) return AICompany::COMPANY_INVALID;
if (::IsTileType(tile, MP_HOUSE)) return AICompany::COMPANY_INVALID;
if (::IsTileType(tile, MP_INDUSTRY)) return AICompany::COMPANY_INVALID;
return AICompany::ResolveCompanyID((AICompany::CompanyID)(byte)::GetTileOwner(tile));
}
/* static */ bool AITile::HasTransportType(TileIndex tile, TransportType transport_type)
{
if (!::IsValidTile(tile)) return false;
return ::TrackStatusToTrackdirBits(::GetTileTrackStatus(tile, (::TransportType)transport_type, UINT32_MAX)) != TRACKDIR_BIT_NONE;
}
/* static */ int32 AITile::GetCargoAcceptance(TileIndex tile, CargoID cargo_type, int width, int height, int radius)
{
if (!::IsValidTile(tile) || width <= 0 || height <= 0 || radius < 0) return -1;
CargoArray acceptance = ::GetAcceptanceAroundTiles(tile, width, height, _settings_game.station.modified_catchment ? radius : (int)CA_UNMODIFIED);
return acceptance[cargo_type];
}
/* static */ int32 AITile::GetCargoProduction(TileIndex tile, CargoID cargo_type, int width, int height, int radius)
{
if (!::IsValidTile(tile) || width <= 0 || height <= 0 || radius < 0) return -1;
CargoArray produced = ::GetProductionAroundTiles(tile, width, height, _settings_game.station.modified_catchment ? radius : (int)CA_UNMODIFIED);
return produced[cargo_type];
}
/* static */ int32 AITile::GetDistanceManhattanToTile(TileIndex tile_from, TileIndex tile_to)
{
return AIMap::DistanceManhattan(tile_from, tile_to);
}
/* static */ int32 AITile::GetDistanceSquareToTile(TileIndex tile_from, TileIndex tile_to)
{
return AIMap::DistanceSquare(tile_from, tile_to);
}
/* static */ bool AITile::RaiseTile(TileIndex tile, int32 slope)
{
EnforcePrecondition(false, tile < ::MapSize());
return AIObject::DoCommand(tile, slope, 1, CMD_TERRAFORM_LAND);
}
/* static */ bool AITile::LowerTile(TileIndex tile, int32 slope)
{
EnforcePrecondition(false, tile < ::MapSize());
return AIObject::DoCommand(tile, slope, 0, CMD_TERRAFORM_LAND);
}
/* static */ bool AITile::LevelTiles(TileIndex start_tile, TileIndex end_tile)
{
EnforcePrecondition(false, start_tile < ::MapSize());
EnforcePrecondition(false, end_tile < ::MapSize());
return AIObject::DoCommand(end_tile, start_tile, 0, CMD_LEVEL_LAND);
}
/* static */ bool AITile::DemolishTile(TileIndex tile)
{
EnforcePrecondition(false, ::IsValidTile(tile));
return AIObject::DoCommand(tile, 0, 0, CMD_LANDSCAPE_CLEAR);
}
/* static */ bool AITile::PlantTree(TileIndex tile)
{
EnforcePrecondition(false, ::IsValidTile(tile));
return AIObject::DoCommand(tile, UINT_MAX, tile, CMD_PLANT_TREE);
}
/* static */ bool AITile::PlantTreeRectangle(TileIndex tile, uint width, uint height)
{
EnforcePrecondition(false, ::IsValidTile(tile));
EnforcePrecondition(false, width >= 1 && width <= 20);
EnforcePrecondition(false, height >= 1 && height <= 20);
TileIndex end_tile = tile + ::TileDiffXY(width - 1, height - 1);
return AIObject::DoCommand(tile, UINT_MAX, end_tile, CMD_PLANT_TREE);
}
/* static */ bool AITile::IsWithinTownInfluence(TileIndex tile, TownID town_id)
{
return AITown::IsWithinTownInfluence(town_id, tile);
}
/* static */ TownID AITile::GetClosestTown(TileIndex tile)
{
if (!::IsValidTile(tile)) return INVALID_TOWN;
return ::ClosestTownFromTile(tile, UINT_MAX)->index;
}
|
