summaryrefslogtreecommitdiff
path: root/src/water_map.h
blob: 3d2f77d993ca819c5decffcb219dad1d43128c12 (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
/* $Id$ */

/** @file water_map.h Map accessors for water tiles. */

#ifndef WATER_MAP_H
#define WATER_MAP_H

#include "core/math_func.hpp"

enum WaterTileType {
	WATER_TILE_CLEAR,
	WATER_TILE_COAST,
	WATER_TILE_LOCK,
	WATER_TILE_DEPOT,
};

enum WaterClass {
	WATER_CLASS_SEA,
	WATER_CLASS_CANAL,
	WATER_CLASS_RIVER,
	WATER_CLASS_INVALID, ///< Used for industry tiles on land (also for oilrig if newgrf says so)
};

enum DepotPart {
	DEPOT_NORTH = 0x80,
	DEPOT_SOUTH = 0x81,
	DEPOT_END   = 0x84,
};

enum LockPart {
	LOCK_MIDDLE = 0x10,
	LOCK_LOWER  = 0x14,
	LOCK_UPPER  = 0x18,
	LOCK_END    = 0x1C
};

static inline WaterTileType GetWaterTileType(TileIndex t)
{
	assert(IsTileType(t, MP_WATER));

	if (_m[t].m5 == 0) return WATER_TILE_CLEAR;
	if (_m[t].m5 == 1) return WATER_TILE_COAST;
	if (IsInsideMM(_m[t].m5, LOCK_MIDDLE, LOCK_END)) return WATER_TILE_LOCK;

	assert(IsInsideMM(_m[t].m5, DEPOT_NORTH, DEPOT_END));
	return WATER_TILE_DEPOT;
}

static inline WaterClass GetWaterClass(TileIndex t)
{
	assert(IsTileType(t, MP_WATER) || IsTileType(t, MP_STATION) || IsTileType(t, MP_INDUSTRY));
	return (WaterClass)(IsTileType(t, MP_INDUSTRY) ? GB(_m[t].m1, 5, 2) : GB(_m[t].m3, 0, 2));
}

static inline void SetWaterClass(TileIndex t, WaterClass wc)
{
	assert(IsTileType(t, MP_WATER) || IsTileType(t, MP_STATION) || IsTileType(t, MP_INDUSTRY));
	if (IsTileType(t, MP_INDUSTRY)) {
		SB(_m[t].m1, 5, 2, wc);
	} else {
		SB(_m[t].m3, 0, 2, wc);
	}
}

/** IsWater return true if any type of clear water like ocean, river, canal */
static inline bool IsWater(TileIndex t)
{
	return GetWaterTileType(t) == WATER_TILE_CLEAR;
}

static inline bool IsSea(TileIndex t)
{
	return IsWater(t) && GetWaterClass(t) == WATER_CLASS_SEA;
}

static inline bool IsCanal(TileIndex t)
{
	return IsWater(t) && GetWaterClass(t) == WATER_CLASS_CANAL;
}

static inline bool IsRiver(TileIndex t)
{
	return IsWater(t) && GetWaterClass(t) == WATER_CLASS_RIVER;
}

static inline bool IsWaterTile(TileIndex t)
{
	return IsTileType(t, MP_WATER) && IsWater(t);
}

static inline bool IsCoast(TileIndex t)
{
	return GetWaterTileType(t) == WATER_TILE_COAST;
}

static inline TileIndex GetOtherShipDepotTile(TileIndex t)
{
	return t + (HasBit(_m[t].m5, 0) ? -1 : 1) * (HasBit(_m[t].m5, 1) ? TileDiffXY(0, 1) : TileDiffXY(1, 0));
}

static inline bool IsShipDepot(TileIndex t)
{
	return IsInsideMM(_m[t].m5, DEPOT_NORTH, DEPOT_END);
}

static inline bool IsShipDepotTile(TileIndex t)
{
	return IsTileType(t, MP_WATER) && IsShipDepot(t);
}

static inline Axis GetShipDepotAxis(TileIndex t)
{
	return (Axis)GB(_m[t].m5, 1, 1);
}

static inline DiagDirection GetShipDepotDirection(TileIndex t)
{
	return XYNSToDiagDir(GetShipDepotAxis(t), GB(_m[t].m5, 0, 1));
}

static inline bool IsLock(TileIndex t)
{
	return IsInsideMM(_m[t].m5, LOCK_MIDDLE, LOCK_END);
}

static inline DiagDirection GetLockDirection(TileIndex t)
{
	return (DiagDirection)GB(_m[t].m5, 0, 2);
}

static inline byte GetSection(TileIndex t)
{
	assert(GetWaterTileType(t) == WATER_TILE_LOCK || GetWaterTileType(t) == WATER_TILE_DEPOT);
	return GB(_m[t].m5, 0, 4);
}

static inline byte GetWaterTileRandomBits(TileIndex t)
{
	return _m[t].m4;
}


static inline void MakeWater(TileIndex t)
{
	SetTileType(t, MP_WATER);
	SetTileOwner(t, OWNER_WATER);
	_m[t].m2 = 0;
	_m[t].m3 = WATER_CLASS_SEA;
	_m[t].m4 = 0;
	_m[t].m5 = 0;
	SB(_m[t].m6, 2, 4, 0);
	_me[t].m7 = 0;
}

static inline void MakeShore(TileIndex t)
{
	SetTileType(t, MP_WATER);
	SetTileOwner(t, OWNER_WATER);
	_m[t].m2 = 0;
	_m[t].m3 = 0;
	_m[t].m4 = 0;
	_m[t].m5 = 1;
	SB(_m[t].m6, 2, 4, 0);
	_me[t].m7 = 0;
}

static inline void MakeRiver(TileIndex t, uint8 random_bits)
{
	SetTileType(t, MP_WATER);
	SetTileOwner(t, OWNER_WATER);
	_m[t].m2 = 0;
	_m[t].m3 = WATER_CLASS_RIVER;
	_m[t].m4 = random_bits;
	_m[t].m5 = 0;
	SB(_m[t].m6, 2, 4, 0);
	_me[t].m7 = 0;
}

static inline void MakeCanal(TileIndex t, Owner o, uint8 random_bits)
{
	assert(o != OWNER_WATER);
	SetTileType(t, MP_WATER);
	SetTileOwner(t, o);
	_m[t].m2 = 0;
	_m[t].m3 = WATER_CLASS_CANAL;
	_m[t].m4 = random_bits;
	_m[t].m5 = 0;
	SB(_m[t].m6, 2, 4, 0);
	_me[t].m7 = 0;
}

static inline void MakeShipDepot(TileIndex t, Owner o, DepotPart base, Axis a, WaterClass original_water_class)
{
	SetTileType(t, MP_WATER);
	SetTileOwner(t, o);
	_m[t].m2 = 0;
	_m[t].m3 = original_water_class;
	_m[t].m4 = 0;
	_m[t].m5 = base + a * 2;
	SB(_m[t].m6, 2, 4, 0);
	_me[t].m7 = 0;
}

static inline void MakeLockTile(TileIndex t, Owner o, byte section, WaterClass original_water_class)
{
	SetTileType(t, MP_WATER);
	SetTileOwner(t, o);
	_m[t].m2 = 0;
	_m[t].m3 = original_water_class;
	_m[t].m4 = 0;
	_m[t].m5 = section;
	SB(_m[t].m6, 2, 4, 0);
	_me[t].m7 = 0;
}

static inline void MakeLock(TileIndex t, Owner o, DiagDirection d, WaterClass wc_lower, WaterClass wc_upper)
{
	TileIndexDiff delta = TileOffsByDiagDir(d);

	MakeLockTile(t, o, LOCK_MIDDLE + d, WATER_CLASS_CANAL);
	MakeLockTile(t - delta, o, LOCK_LOWER + d, wc_lower);
	MakeLockTile(t + delta, o, LOCK_UPPER + d, wc_upper);
}

#endif /* WATER_MAP_H */