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
|
/* $Id$ */
/** @file tile_map.h Map writing/reading functions for tiles. */
#ifndef TILE_MAP_H
#define TILE_MAP_H
#include "tile_type.h"
#include "slope_type.h"
#include "company_type.h"
#include "map_func.h"
#include "core/bitmath_func.hpp"
#include "settings_type.h"
/**
* Returns the height of a tile
*
* This function returns the height of the northern corner of a tile.
* This is saved in the global map-array. It does not take affect by
* any slope-data of the tile.
*
* @param tile The tile to get the height from
* @return the height of the tile
* @pre tile < MapSize()
*/
static inline uint TileHeight(TileIndex tile)
{
assert(tile < MapSize());
return GB(_m[tile].type_height, 0, 4);
}
/**
* Sets the height of a tile.
*
* This function sets the height of the northern corner of a tile.
*
* @param tile The tile to change the height
* @param height The new height value of the tile
* @pre tile < MapSize()
* @pre heigth <= MAX_TILE_HEIGHT
*/
static inline void SetTileHeight(TileIndex tile, uint height)
{
assert(tile < MapSize());
assert(height <= MAX_TILE_HEIGHT);
SB(_m[tile].type_height, 0, 4, height);
}
/**
* Returns the height of a tile in pixels.
*
* This function returns the height of the northern corner of a tile in pixels.
*
* @param tile The tile to get the height
* @return The height of the tile in pixel
*/
static inline uint TilePixelHeight(TileIndex tile)
{
return TileHeight(tile) * TILE_HEIGHT;
}
/**
* Get the tiletype of a given tile.
*
* @param tile The tile to get the TileType
* @return The tiletype of the tile
* @pre tile < MapSize()
*/
static inline TileType GetTileType(TileIndex tile)
{
assert(tile < MapSize());
return (TileType)GB(_m[tile].type_height, 4, 4);
}
/**
* Set the type of a tile
*
* This functions sets the type of a tile. If the type
* MP_VOID is selected the tile must be at the south-west or
* south-east edges of the map and vice versa.
*
* @param tile The tile to save the new type
* @param type The type to save
* @pre tile < MapSize()
* @pre type MP_VOID <=> tile is on the south-east or south-west edge.
*/
static inline void SetTileType(TileIndex tile, TileType type)
{
assert(tile < MapSize());
/* VOID tiles (and no others) are exactly allowed at the lower left and right
* edges of the map. If _settings_game.construction.freeform_edges is true,
* the upper edges of the map are also VOID tiles. */
assert((TileX(tile) == MapMaxX() || TileY(tile) == MapMaxY() || (_settings_game.construction.freeform_edges && (TileX(tile) == 0 || TileY(tile) == 0))) == (type == MP_VOID));
SB(_m[tile].type_height, 4, 4, type);
}
/**
* Checks if a tile is a give tiletype.
*
* This function checks if a tile got the given tiletype.
*
* @param tile The tile to check
* @param type The type to check agains
* @return true If the type matches agains the type of the tile
*/
static inline bool IsTileType(TileIndex tile, TileType type)
{
return GetTileType(tile) == type;
}
/**
* Checks if a tile is valid
*
* @param tile The tile to check
* @return True if the tile is on the map and not one of MP_VOID.
*/
static inline bool IsValidTile(TileIndex tile)
{
return tile < MapSize() && !IsTileType(tile, MP_VOID);
}
/**
* Returns the owner of a tile
*
* This function returns the owner of a tile. This cannot used
* for tiles which type is one of MP_HOUSE, MP_VOID and MP_INDUSTRY
* as no company owned any of these buildings.
*
* @param tile The tile to check
* @return The owner of the tile
* @pre IsValidTile(tile)
* @pre The type of the tile must not be MP_HOUSE and MP_INDUSTRY
*/
static inline Owner GetTileOwner(TileIndex tile)
{
assert(IsValidTile(tile));
assert(!IsTileType(tile, MP_HOUSE));
assert(!IsTileType(tile, MP_INDUSTRY));
return (Owner)_m[tile].m1;
}
/**
* Sets the owner of a tile
*
* This function sets the owner status of a tile. Note that you cannot
* set a owner for tiles of type MP_HOUSE, MP_VOID and MP_INDUSTRY.
*
* @param tile The tile to change the owner status.
* @param owner The new owner.
* @pre IsValidTile(tile)
* @pre The type of the tile must not be MP_HOUSE and MP_INDUSTRY
*/
static inline void SetTileOwner(TileIndex tile, Owner owner)
{
assert(IsValidTile(tile));
assert(!IsTileType(tile, MP_HOUSE));
assert(!IsTileType(tile, MP_INDUSTRY));
_m[tile].m1 = owner;
}
/**
* Checks if a tile belongs to the given owner
*
* @param tile The tile to check
* @param owner The owner to check agains
* @return True if a tile belongs the the given owner
*/
static inline bool IsTileOwner(TileIndex tile, Owner owner)
{
return GetTileOwner(tile) == owner;
}
/**
* Set the tropic zone
* @param tile the tile to set the zone of
* @param type the new type
* @pre tile < MapSize()
*/
static inline void SetTropicZone(TileIndex tile, TropicZone type)
{
assert(tile < MapSize());
SB(_m[tile].m6, 0, 2, type);
}
/**
* Get the tropic zone
* @param tile the tile to get the zone of
* @pre tile < MapSize()
* @return the zone type
*/
static inline TropicZone GetTropicZone(TileIndex tile)
{
assert(tile < MapSize());
return (TropicZone)GB(_m[tile].m6, 0, 2);
}
Slope GetTileSlope(TileIndex tile, uint *h);
uint GetTileZ(TileIndex tile);
uint GetTileMaxZ(TileIndex tile);
#endif /* TILE_TYPE_H */
|
