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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
00018 enum WaterTileType {
00019 WATER_TILE_CLEAR,
00020 WATER_TILE_COAST,
00021 WATER_TILE_LOCK,
00022 WATER_TILE_DEPOT,
00023 };
00024
00025 enum WaterClass {
00026 WATER_CLASS_SEA,
00027 WATER_CLASS_CANAL,
00028 WATER_CLASS_RIVER,
00029 WATER_CLASS_INVALID,
00030 };
00031
00032 enum DepotPart {
00033 DEPOT_NORTH = 0x80,
00034 DEPOT_SOUTH = 0x81,
00035 DEPOT_END = 0x84,
00036 };
00037
00038 enum LockPart {
00039 LOCK_MIDDLE = 0x10,
00040 LOCK_LOWER = 0x14,
00041 LOCK_UPPER = 0x18,
00042 LOCK_END = 0x1C
00043 };
00044
00045 static inline WaterTileType GetWaterTileType(TileIndex t)
00046 {
00047 assert(IsTileType(t, MP_WATER));
00048
00049 if (_m[t].m5 == 0) return WATER_TILE_CLEAR;
00050 if (_m[t].m5 == 1) return WATER_TILE_COAST;
00051 if (IsInsideMM(_m[t].m5, LOCK_MIDDLE, LOCK_END)) return WATER_TILE_LOCK;
00052
00053 assert(IsInsideMM(_m[t].m5, DEPOT_NORTH, DEPOT_END));
00054 return WATER_TILE_DEPOT;
00055 }
00056
00057 static inline WaterClass GetWaterClass(TileIndex t)
00058 {
00059 assert(IsTileType(t, MP_WATER) || IsTileType(t, MP_STATION) || IsTileType(t, MP_INDUSTRY));
00060 return (WaterClass)(IsTileType(t, MP_INDUSTRY) ? GB(_m[t].m1, 5, 2) : GB(_m[t].m3, 0, 2));
00061 }
00062
00063 static inline void SetWaterClass(TileIndex t, WaterClass wc)
00064 {
00065 assert(IsTileType(t, MP_WATER) || IsTileType(t, MP_STATION) || IsTileType(t, MP_INDUSTRY));
00066 if (IsTileType(t, MP_INDUSTRY)) {
00067 SB(_m[t].m1, 5, 2, wc);
00068 } else {
00069 SB(_m[t].m3, 0, 2, wc);
00070 }
00071 }
00072
00074 static inline bool IsWater(TileIndex t)
00075 {
00076 return GetWaterTileType(t) == WATER_TILE_CLEAR;
00077 }
00078
00079 static inline bool IsSea(TileIndex t)
00080 {
00081 return IsWater(t) && GetWaterClass(t) == WATER_CLASS_SEA;
00082 }
00083
00084 static inline bool IsCanal(TileIndex t)
00085 {
00086 return IsWater(t) && GetWaterClass(t) == WATER_CLASS_CANAL;
00087 }
00088
00089 static inline bool IsRiver(TileIndex t)
00090 {
00091 return IsWater(t) && GetWaterClass(t) == WATER_CLASS_RIVER;
00092 }
00093
00094 static inline bool IsWaterTile(TileIndex t)
00095 {
00096 return IsTileType(t, MP_WATER) && IsWater(t);
00097 }
00098
00099 static inline bool IsCoast(TileIndex t)
00100 {
00101 return GetWaterTileType(t) == WATER_TILE_COAST;
00102 }
00103
00104 static inline TileIndex GetOtherShipDepotTile(TileIndex t)
00105 {
00106 return t + (HasBit(_m[t].m5, 0) ? -1 : 1) * (HasBit(_m[t].m5, 1) ? TileDiffXY(0, 1) : TileDiffXY(1, 0));
00107 }
00108
00109 static inline bool IsShipDepot(TileIndex t)
00110 {
00111 return IsInsideMM(_m[t].m5, DEPOT_NORTH, DEPOT_END);
00112 }
00113
00114 static inline bool IsShipDepotTile(TileIndex t)
00115 {
00116 return IsTileType(t, MP_WATER) && IsShipDepot(t);
00117 }
00118
00119 static inline Axis GetShipDepotAxis(TileIndex t)
00120 {
00121 return (Axis)GB(_m[t].m5, 1, 1);
00122 }
00123
00124 static inline DiagDirection GetShipDepotDirection(TileIndex t)
00125 {
00126 return XYNSToDiagDir(GetShipDepotAxis(t), GB(_m[t].m5, 0, 1));
00127 }
00128
00129 static inline bool IsLock(TileIndex t)
00130 {
00131 return IsInsideMM(_m[t].m5, LOCK_MIDDLE, LOCK_END);
00132 }
00133
00134 static inline DiagDirection GetLockDirection(TileIndex t)
00135 {
00136 return (DiagDirection)GB(_m[t].m5, 0, 2);
00137 }
00138
00139 static inline byte GetSection(TileIndex t)
00140 {
00141 assert(GetWaterTileType(t) == WATER_TILE_LOCK || GetWaterTileType(t) == WATER_TILE_DEPOT);
00142 return GB(_m[t].m5, 0, 4);
00143 }
00144
00145 static inline byte GetWaterTileRandomBits(TileIndex t)
00146 {
00147 return _m[t].m4;
00148 }
00149
00150
00151 static inline void MakeShore(TileIndex t)
00152 {
00153 SetTileType(t, MP_WATER);
00154 SetTileOwner(t, OWNER_WATER);
00155 _m[t].m2 = 0;
00156 _m[t].m3 = 0;
00157 _m[t].m4 = 0;
00158 _m[t].m5 = 1;
00159 SB(_m[t].m6, 2, 4, 0);
00160 _me[t].m7 = 0;
00161 }
00162
00170 static inline void MakeWater(TileIndex t, Owner o, WaterClass wc, uint8 random_bits)
00171 {
00172 SetTileType(t, MP_WATER);
00173 SetTileOwner(t, o);
00174 _m[t].m2 = 0;
00175 _m[t].m3 = wc;
00176 _m[t].m4 = random_bits;
00177 _m[t].m5 = 0;
00178 SB(_m[t].m6, 2, 4, 0);
00179 _me[t].m7 = 0;
00180 }
00181
00186 static inline void MakeSea(TileIndex t)
00187 {
00188 MakeWater(t, OWNER_WATER, WATER_CLASS_SEA, 0);
00189 }
00190
00196 static inline void MakeRiver(TileIndex t, uint8 random_bits)
00197 {
00198 MakeWater(t, OWNER_WATER, WATER_CLASS_RIVER, random_bits);
00199 }
00200
00207 static inline void MakeCanal(TileIndex t, Owner o, uint8 random_bits)
00208 {
00209 assert(o != OWNER_WATER);
00210 MakeWater(t, o, WATER_CLASS_CANAL, random_bits);
00211 }
00212
00213 static inline void MakeShipDepot(TileIndex t, Owner o, DepotID did, DepotPart base, Axis a, WaterClass original_water_class)
00214 {
00215 SetTileType(t, MP_WATER);
00216 SetTileOwner(t, o);
00217 _m[t].m2 = did;
00218 _m[t].m3 = original_water_class;
00219 _m[t].m4 = 0;
00220 _m[t].m5 = base + a * 2;
00221 SB(_m[t].m6, 2, 4, 0);
00222 _me[t].m7 = 0;
00223 }
00224
00225 static inline void MakeLockTile(TileIndex t, Owner o, byte section, WaterClass original_water_class)
00226 {
00227 SetTileType(t, MP_WATER);
00228 SetTileOwner(t, o);
00229 _m[t].m2 = 0;
00230 _m[t].m3 = original_water_class;
00231 _m[t].m4 = 0;
00232 _m[t].m5 = section;
00233 SB(_m[t].m6, 2, 4, 0);
00234 _me[t].m7 = 0;
00235 }
00236
00237 static inline void MakeLock(TileIndex t, Owner o, DiagDirection d, WaterClass wc_lower, WaterClass wc_upper)
00238 {
00239 TileIndexDiff delta = TileOffsByDiagDir(d);
00240
00241 MakeLockTile(t, o, LOCK_MIDDLE + d, WATER_CLASS_CANAL);
00242 MakeLockTile(t - delta, o, LOCK_LOWER + d, wc_lower);
00243 MakeLockTile(t + delta, o, LOCK_UPPER + d, wc_upper);
00244 }
00245
00246 #endif