00001
00002
00005 #ifndef YAPF_NODE_RAIL_HPP
00006 #define YAPF_NODE_RAIL_HPP
00007
00009 struct CYapfRailSegmentKey
00010 {
00011 uint32 m_value;
00012
00013 FORCEINLINE CYapfRailSegmentKey(const CYapfRailSegmentKey& src) : m_value(src.m_value) {}
00014 FORCEINLINE CYapfRailSegmentKey(const CYapfNodeKeyTrackDir& node_key) {Set(node_key);}
00015
00016 FORCEINLINE void Set(const CYapfRailSegmentKey& src) {m_value = src.m_value;}
00017 FORCEINLINE void Set(const CYapfNodeKeyTrackDir& node_key) {m_value = (((int)node_key.m_tile) << 4) | node_key.m_td;}
00018
00019 FORCEINLINE int32 CalcHash() const {return m_value;}
00020 FORCEINLINE TileIndex GetTile() const {return (TileIndex)(m_value >> 4);}
00021 FORCEINLINE Trackdir GetTrackdir() const {return (Trackdir)(m_value & 0x0F);}
00022 FORCEINLINE bool operator == (const CYapfRailSegmentKey& other) const {return m_value == other.m_value;}
00023
00024 void Dump(DumpTarget &dmp) const
00025 {
00026 dmp.WriteTile("tile", GetTile());
00027 dmp.WriteEnumT("td", GetTrackdir());
00028 }
00029 };
00030
00031
00032 enum EndSegmentReason {
00033
00034 ESR_DEAD_END = 0,
00035 ESR_RAIL_TYPE,
00036 ESR_INFINITE_LOOP,
00037 ESR_SEGMENT_TOO_LONG,
00038 ESR_CHOICE_FOLLOWS,
00039 ESR_DEPOT,
00040 ESR_WAYPOINT,
00041 ESR_STATION,
00042
00043
00044
00045 ESR_PATH_TOO_LONG,
00046 ESR_FIRST_TWO_WAY_RED,
00047 ESR_LOOK_AHEAD_END,
00048 ESR_TARGET_REACHED,
00049
00050
00051 ESR_NONE = 0xFF,
00052 };
00053
00054 enum EndSegmentReasonBits {
00055 ESRB_NONE = 0,
00056
00057 ESRB_DEAD_END = 1 << ESR_DEAD_END,
00058 ESRB_RAIL_TYPE = 1 << ESR_RAIL_TYPE,
00059 ESRB_INFINITE_LOOP = 1 << ESR_INFINITE_LOOP,
00060 ESRB_SEGMENT_TOO_LONG = 1 << ESR_SEGMENT_TOO_LONG,
00061 ESRB_CHOICE_FOLLOWS = 1 << ESR_CHOICE_FOLLOWS,
00062 ESRB_DEPOT = 1 << ESR_DEPOT,
00063 ESRB_WAYPOINT = 1 << ESR_WAYPOINT,
00064 ESRB_STATION = 1 << ESR_STATION,
00065
00066 ESRB_PATH_TOO_LONG = 1 << ESR_PATH_TOO_LONG,
00067 ESRB_FIRST_TWO_WAY_RED = 1 << ESR_FIRST_TWO_WAY_RED,
00068 ESRB_LOOK_AHEAD_END = 1 << ESR_LOOK_AHEAD_END,
00069 ESRB_TARGET_REACHED = 1 << ESR_TARGET_REACHED,
00070
00071
00072
00073
00074 ESRB_POSSIBLE_TARGET = ESRB_DEPOT | ESRB_WAYPOINT | ESRB_STATION,
00075
00076
00077 ESRB_CACHED_MASK = ESRB_DEAD_END | ESRB_RAIL_TYPE | ESRB_INFINITE_LOOP | ESRB_SEGMENT_TOO_LONG | ESRB_CHOICE_FOLLOWS | ESRB_DEPOT | ESRB_WAYPOINT | ESRB_STATION,
00078
00079
00080 ESRB_ABORT_PF_MASK = ESRB_DEAD_END | ESRB_PATH_TOO_LONG | ESRB_INFINITE_LOOP | ESRB_FIRST_TWO_WAY_RED,
00081 };
00082
00083 DECLARE_ENUM_AS_BIT_SET(EndSegmentReasonBits);
00084
00085 inline CStrA ValueStr(EndSegmentReasonBits bits)
00086 {
00087 static const char* end_segment_reason_names[] = {
00088 "DEAD_END", "RAIL_TYPE", "INFINITE_LOOP", "SEGMENT_TOO_LONG", "CHOICE_FOLLOWS",
00089 "DEPOT", "WAYPOINT", "STATION",
00090 "PATH_TOO_LONG", "FIRST_TWO_WAY_RED", "LOOK_AHEAD_END", "TARGET_REACHED"
00091 };
00092
00093 CStrA out;
00094 out.Format("0x%04X (%s)", bits, ComposeNameT(bits, end_segment_reason_names, "UNK", ESRB_NONE, "NONE").Data());
00095 return out.Transfer();
00096 }
00097
00099 struct CYapfRailSegment
00100 {
00101 typedef CYapfRailSegmentKey Key;
00102
00103 CYapfRailSegmentKey m_key;
00104 TileIndex m_last_tile;
00105 Trackdir m_last_td;
00106 int m_cost;
00107 TileIndex m_last_signal_tile;
00108 Trackdir m_last_signal_td;
00109 EndSegmentReasonBits m_end_segment_reason;
00110 CYapfRailSegment* m_hash_next;
00111
00112 FORCEINLINE CYapfRailSegment(const CYapfRailSegmentKey& key)
00113 : m_key(key)
00114 , m_last_tile(INVALID_TILE)
00115 , m_last_td(INVALID_TRACKDIR)
00116 , m_cost(-1)
00117 , m_last_signal_tile(INVALID_TILE)
00118 , m_last_signal_td(INVALID_TRACKDIR)
00119 , m_end_segment_reason(ESRB_NONE)
00120 , m_hash_next(NULL)
00121 {}
00122
00123 FORCEINLINE const Key& GetKey() const {return m_key;}
00124 FORCEINLINE TileIndex GetTile() const {return m_key.GetTile();}
00125 FORCEINLINE CYapfRailSegment* GetHashNext() {return m_hash_next;}
00126 FORCEINLINE void SetHashNext(CYapfRailSegment* next) {m_hash_next = next;}
00127
00128 void Dump(DumpTarget &dmp) const
00129 {
00130 dmp.WriteStructT("m_key", &m_key);
00131 dmp.WriteTile("m_last_tile", m_last_tile);
00132 dmp.WriteEnumT("m_last_td", m_last_td);
00133 dmp.WriteLine("m_cost = %d", m_cost);
00134 dmp.WriteTile("m_last_signal_tile", m_last_signal_tile);
00135 dmp.WriteEnumT("m_last_signal_td", m_last_signal_td);
00136 dmp.WriteEnumT("m_end_segment_reason", m_end_segment_reason);
00137 }
00138 };
00139
00141 template <class Tkey_>
00142 struct CYapfRailNodeT
00143 : CYapfNodeT<Tkey_, CYapfRailNodeT<Tkey_> >
00144 {
00145 typedef CYapfNodeT<Tkey_, CYapfRailNodeT<Tkey_> > base;
00146 typedef CYapfRailSegment CachedData;
00147
00148 CYapfRailSegment *m_segment;
00149 uint16 m_num_signals_passed;
00150 union {
00151 uint32 m_inherited_flags;
00152 struct {
00153 bool m_targed_seen : 1;
00154 bool m_choice_seen : 1;
00155 bool m_last_signal_was_red : 1;
00156 } flags_s;
00157 } flags_u;
00158 SignalType m_last_red_signal_type;
00159
00160 FORCEINLINE void Set(CYapfRailNodeT* parent, TileIndex tile, Trackdir td, bool is_choice)
00161 {
00162 base::Set(parent, tile, td, is_choice);
00163 m_segment = NULL;
00164 if (parent == NULL) {
00165 m_num_signals_passed = 0;
00166 flags_u.m_inherited_flags = 0;
00167 m_last_red_signal_type = SIGTYPE_NORMAL;
00168 } else {
00169 m_num_signals_passed = parent->m_num_signals_passed;
00170 flags_u.m_inherited_flags = parent->flags_u.m_inherited_flags;
00171 m_last_red_signal_type = parent->m_last_red_signal_type;
00172 }
00173 flags_u.flags_s.m_choice_seen |= is_choice;
00174 }
00175
00176 FORCEINLINE TileIndex GetLastTile() const {assert(m_segment != NULL); return m_segment->m_last_tile;}
00177 FORCEINLINE Trackdir GetLastTrackdir() const {assert(m_segment != NULL); return m_segment->m_last_td;}
00178 FORCEINLINE void SetLastTileTrackdir(TileIndex tile, Trackdir td) {assert(m_segment != NULL); m_segment->m_last_tile = tile; m_segment->m_last_td = td;}
00179
00180 void Dump(DumpTarget &dmp) const
00181 {
00182 base::Dump(dmp);
00183 dmp.WriteStructT("m_segment", m_segment);
00184 dmp.WriteLine("m_num_signals_passed = %d", m_num_signals_passed);
00185 dmp.WriteLine("m_targed_seen = %s", flags_u.flags_s.m_targed_seen ? "Yes" : "No");
00186 dmp.WriteLine("m_choice_seen = %s", flags_u.flags_s.m_choice_seen ? "Yes" : "No");
00187 dmp.WriteLine("m_last_signal_was_red = %s", flags_u.flags_s.m_last_signal_was_red ? "Yes" : "No");
00188 dmp.WriteEnumT("m_last_red_signal_type", m_last_red_signal_type);
00189 }
00190 };
00191
00192
00193 typedef CYapfRailNodeT<CYapfNodeKeyExitDir> CYapfRailNodeExitDir;
00194 typedef CYapfRailNodeT<CYapfNodeKeyTrackDir> CYapfRailNodeTrackDir;
00195
00196
00197 typedef CNodeList_HashTableT<CYapfRailNodeExitDir , 10, 12> CRailNodeListExitDir;
00198 typedef CNodeList_HashTableT<CYapfRailNodeTrackDir, 12, 16> CRailNodeListTrackDir;
00199
00200
00201
00202 #endif