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00012 #ifndef WATER_MAP_H
00013 #define WATER_MAP_H
00014
00015 #include "core/math_func.hpp"
00016 #include "depot_type.h"
00017 #include "tile_map.h"
00018
00019 enum WaterTileType {
00020 WATER_TILE_CLEAR,
00021 WATER_TILE_COAST,
00022 WATER_TILE_LOCK,
00023 WATER_TILE_DEPOT,
00024 };
00025
00026 enum WaterClass {
00027 WATER_CLASS_SEA,
00028 WATER_CLASS_CANAL,
00029 WATER_CLASS_RIVER,
00030 WATER_CLASS_INVALID,
00031 };
00032
00033 enum DepotPart {
00034 DEPOT_NORTH = 0x80,
00035 DEPOT_SOUTH = 0x81,
00036 DEPOT_END = 0x84,
00037 };
00038
00039 enum LockPart {
00040 LOCK_MIDDLE = 0x10,
00041 LOCK_LOWER = 0x14,
00042 LOCK_UPPER = 0x18,
00043 LOCK_END = 0x1C
00044 };
00045
00046 static inline WaterTileType GetWaterTileType(TileIndex t)
00047 {
00048 assert(IsTileType(t, MP_WATER));
00049
00050 if (_m[t].m5 == 0) return WATER_TILE_CLEAR;
00051 if (_m[t].m5 == 1) return WATER_TILE_COAST;
00052 if (IsInsideMM(_m[t].m5, LOCK_MIDDLE, LOCK_END)) return WATER_TILE_LOCK;
00053
00054 assert(IsInsideMM(_m[t].m5, DEPOT_NORTH, DEPOT_END));
00055 return WATER_TILE_DEPOT;
00056 }
00057
00058 static inline WaterClass GetWaterClass(TileIndex t)
00059 {
00060 assert(IsTileType(t, MP_WATER) || IsTileType(t, MP_STATION) || IsTileType(t, MP_INDUSTRY));
00061 return (WaterClass)(IsTileType(t, MP_INDUSTRY) ? GB(_m[t].m1, 5, 2) : GB(_m[t].m3, 0, 2));
00062 }
00063
00064 static inline void SetWaterClass(TileIndex t, WaterClass wc)
00065 {
00066 assert(IsTileType(t, MP_WATER) || IsTileType(t, MP_STATION) || IsTileType(t, MP_INDUSTRY));
00067 if (IsTileType(t, MP_INDUSTRY)) {
00068 SB(_m[t].m1, 5, 2, wc);
00069 } else {
00070 SB(_m[t].m3, 0, 2, wc);
00071 }
00072 }
00073
00075 static inline bool IsWater(TileIndex t)
00076 {
00077 return GetWaterTileType(t) == WATER_TILE_CLEAR;
00078 }
00079
00080 static inline bool IsSea(TileIndex t)
00081 {
00082 return IsWater(t) && GetWaterClass(t) == WATER_CLASS_SEA;
00083 }
00084
00085 static inline bool IsCanal(TileIndex t)
00086 {
00087 return IsWater(t) && GetWaterClass(t) == WATER_CLASS_CANAL;
00088 }
00089
00090 static inline bool IsRiver(TileIndex t)
00091 {
00092 return IsWater(t) && GetWaterClass(t) == WATER_CLASS_RIVER;
00093 }
00094
00095 static inline bool IsWaterTile(TileIndex t)
00096 {
00097 return IsTileType(t, MP_WATER) && IsWater(t);
00098 }
00099
00100 static inline bool IsCoast(TileIndex t)
00101 {
00102 return GetWaterTileType(t) == WATER_TILE_COAST;
00103 }
00104
00105 static inline TileIndex GetOtherShipDepotTile(TileIndex t)
00106 {
00107 return t + (HasBit(_m[t].m5, 0) ? -1 : 1) * (HasBit(_m[t].m5, 1) ? TileDiffXY(0, 1) : TileDiffXY(1, 0));
00108 }
00109
00110 static inline bool IsShipDepot(TileIndex t)
00111 {
00112 return IsInsideMM(_m[t].m5, DEPOT_NORTH, DEPOT_END);
00113 }
00114
00115 static inline bool IsShipDepotTile(TileIndex t)
00116 {
00117 return IsTileType(t, MP_WATER) && IsShipDepot(t);
00118 }
00119
00120 static inline Axis GetShipDepotAxis(TileIndex t)
00121 {
00122 return (Axis)GB(_m[t].m5, 1, 1);
00123 }
00124
00125 static inline DiagDirection GetShipDepotDirection(TileIndex t)
00126 {
00127 return XYNSToDiagDir(GetShipDepotAxis(t), GB(_m[t].m5, 0, 1));
00128 }
00129
00130 static inline bool IsLock(TileIndex t)
00131 {
00132 return IsInsideMM(_m[t].m5, LOCK_MIDDLE, LOCK_END);
00133 }
00134
00135 static inline DiagDirection GetLockDirection(TileIndex t)
00136 {
00137 return (DiagDirection)GB(_m[t].m5, 0, 2);
00138 }
00139
00140 static inline byte GetSection(TileIndex t)
00141 {
00142 assert(GetWaterTileType(t) == WATER_TILE_LOCK || GetWaterTileType(t) == WATER_TILE_DEPOT);
00143 return GB(_m[t].m5, 0, 4);
00144 }
00145
00146 static inline byte GetWaterTileRandomBits(TileIndex t)
00147 {
00148 return _m[t].m4;
00149 }
00150
00151
00152 static inline void MakeShore(TileIndex t)
00153 {
00154 SetTileType(t, MP_WATER);
00155 SetTileOwner(t, OWNER_WATER);
00156 _m[t].m2 = 0;
00157 _m[t].m3 = 0;
00158 _m[t].m4 = 0;
00159 _m[t].m5 = 1;
00160 SB(_m[t].m6, 2, 4, 0);
00161 _me[t].m7 = 0;
00162 }
00163
00171 static inline void MakeWater(TileIndex t, Owner o, WaterClass wc, uint8 random_bits)
00172 {
00173 SetTileType(t, MP_WATER);
00174 SetTileOwner(t, o);
00175 _m[t].m2 = 0;
00176 _m[t].m3 = wc;
00177 _m[t].m4 = random_bits;
00178 _m[t].m5 = 0;
00179 SB(_m[t].m6, 2, 4, 0);
00180 _me[t].m7 = 0;
00181 }
00182
00187 static inline void MakeSea(TileIndex t)
00188 {
00189 MakeWater(t, OWNER_WATER, WATER_CLASS_SEA, 0);
00190 }
00191
00197 static inline void MakeRiver(TileIndex t, uint8 random_bits)
00198 {
00199 MakeWater(t, OWNER_WATER, WATER_CLASS_RIVER, random_bits);
00200 }
00201
00208 static inline void MakeCanal(TileIndex t, Owner o, uint8 random_bits)
00209 {
00210 assert(o != OWNER_WATER);
00211 MakeWater(t, o, WATER_CLASS_CANAL, random_bits);
00212 }
00213
00214 static inline void MakeShipDepot(TileIndex t, Owner o, DepotID did, DepotPart base, Axis a, WaterClass original_water_class)
00215 {
00216 SetTileType(t, MP_WATER);
00217 SetTileOwner(t, o);
00218 _m[t].m2 = did;
00219 _m[t].m3 = original_water_class;
00220 _m[t].m4 = 0;
00221 _m[t].m5 = base + a * 2;
00222 SB(_m[t].m6, 2, 4, 0);
00223 _me[t].m7 = 0;
00224 }
00225
00226 static inline void MakeLockTile(TileIndex t, Owner o, byte section, WaterClass original_water_class)
00227 {
00228 SetTileType(t, MP_WATER);
00229 SetTileOwner(t, o);
00230 _m[t].m2 = 0;
00231 _m[t].m3 = original_water_class;
00232 _m[t].m4 = 0;
00233 _m[t].m5 = section;
00234 SB(_m[t].m6, 2, 4, 0);
00235 _me[t].m7 = 0;
00236 }
00237
00238 static inline void MakeLock(TileIndex t, Owner o, DiagDirection d, WaterClass wc_lower, WaterClass wc_upper)
00239 {
00240 TileIndexDiff delta = TileOffsByDiagDir(d);
00241
00242 MakeLockTile(t, o, LOCK_MIDDLE + d, WATER_CLASS_CANAL);
00243 MakeLockTile(t - delta, o, LOCK_LOWER + d, wc_lower);
00244 MakeLockTile(t + delta, o, LOCK_UPPER + d, wc_upper);
00245 }
00246
00247 #endif