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00012 #ifndef RAIL_H
00013 #define RAIL_H
00014
00015 #include "rail_type.h"
00016 #include "track_type.h"
00017 #include "gfx_type.h"
00018 #include "core/bitmath_func.hpp"
00019 #include "economy_func.h"
00020 #include "slope_type.h"
00021 #include "strings_type.h"
00022 #include "date_type.h"
00023
00025 enum RailTypeFlags {
00026 RTF_CATENARY = 0,
00027 RTF_NO_LEVEL_CROSSING = 1,
00028
00029 RTFB_NONE = 0,
00030 RTFB_CATENARY = 1 << RTF_CATENARY,
00031 RTFB_NO_LEVEL_CROSSING = 1 << RTF_NO_LEVEL_CROSSING,
00032 };
00033 DECLARE_ENUM_AS_BIT_SET(RailTypeFlags)
00034
00035 struct SpriteGroup;
00036
00038 enum RailTypeSpriteGroup {
00039 RTSG_CURSORS,
00040 RTSG_OVERLAY,
00041 RTSG_GROUND,
00042 RTSG_TUNNEL,
00043 RTSG_WIRES,
00044 RTSG_PYLONS,
00045 RTSG_BRIDGE,
00046 RTSG_CROSSING,
00047 RTSG_DEPOT,
00048 RTSG_FENCES,
00049 RTSG_TUNNEL_PORTAL,
00050 RTSG_END,
00051 };
00052
00057 enum RailTrackOffset {
00058 RTO_X,
00059 RTO_Y,
00060 RTO_N,
00061 RTO_S,
00062 RTO_E,
00063 RTO_W,
00064 RTO_SLOPE_NE,
00065 RTO_SLOPE_SE,
00066 RTO_SLOPE_SW,
00067 RTO_SLOPE_NW,
00068 RTO_CROSSING_XY,
00069 RTO_JUNCTION_SW,
00070 RTO_JUNCTION_NE,
00071 RTO_JUNCTION_SE,
00072 RTO_JUNCTION_NW,
00073 RTO_JUNCTION_NSEW,
00074 };
00075
00079 enum RailTrackBridgeOffset {
00080 RTBO_X,
00081 RTBO_Y,
00082 RTBO_SLOPE,
00083 };
00084
00089 enum RailFenceOffset {
00090 RFO_FLAT_X,
00091 RFO_FLAT_Y,
00092 RFO_FLAT_VERT,
00093 RFO_FLAT_HORZ,
00094 RFO_SLOPE_SW,
00095 RFO_SLOPE_SE,
00096 RFO_SLOPE_NE,
00097 RFO_SLOPE_NW,
00098 };
00099
00101 typedef SmallVector<RailTypeLabel, 4> RailTypeLabelList;
00102
00106 struct RailtypeInfo {
00111 struct {
00112 SpriteID track_y;
00113 SpriteID track_ns;
00114 SpriteID ground;
00115 SpriteID single_x;
00116 SpriteID single_y;
00117 SpriteID single_n;
00118 SpriteID single_s;
00119 SpriteID single_e;
00120 SpriteID single_w;
00121 SpriteID single_sloped;
00122 SpriteID crossing;
00123 SpriteID tunnel;
00124 } base_sprites;
00125
00130 struct {
00131 SpriteID build_ns_rail;
00132 SpriteID build_x_rail;
00133 SpriteID build_ew_rail;
00134 SpriteID build_y_rail;
00135 SpriteID auto_rail;
00136 SpriteID build_depot;
00137 SpriteID build_tunnel;
00138 SpriteID convert_rail;
00139 } gui_sprites;
00140
00141 struct {
00142 CursorID rail_ns;
00143 CursorID rail_swne;
00144 CursorID rail_ew;
00145 CursorID rail_nwse;
00146 CursorID autorail;
00147 CursorID depot;
00148 CursorID tunnel;
00149 CursorID convert;
00150 } cursor;
00151
00152 struct {
00153 StringID name;
00154 StringID toolbar_caption;
00155 StringID menu_text;
00156 StringID build_caption;
00157 StringID replace_text;
00158 StringID new_loco;
00159 } strings;
00160
00162 SpriteID snow_offset;
00163
00165 RailTypes powered_railtypes;
00166
00168 RailTypes compatible_railtypes;
00169
00173 SpriteID bridge_offset;
00174
00178 byte fallback_railtype;
00179
00183 byte curve_speed;
00184
00188 RailTypeFlags flags;
00189
00193 uint16 cost_multiplier;
00194
00198 uint16 maintenance_multiplier;
00199
00203 uint8 acceleration_type;
00204
00208 uint16 max_speed;
00209
00213 RailTypeLabel label;
00214
00218 RailTypeLabelList alternate_labels;
00219
00223 byte map_colour;
00224
00232 Date introduction_date;
00233
00238 RailTypes introduction_required_railtypes;
00239
00243 RailTypes introduces_railtypes;
00244
00248 byte sorting_order;
00249
00253 const GRFFile *grffile[RTSG_END];
00254
00258 const SpriteGroup *group[RTSG_END];
00259
00260 inline bool UsesOverlay() const
00261 {
00262 return this->group[RTSG_GROUND] != NULL;
00263 }
00264
00272 inline uint GetRailtypeSpriteOffset() const
00273 {
00274 return 82 * this->fallback_railtype;
00275 }
00276 };
00277
00278
00284 static inline const RailtypeInfo *GetRailTypeInfo(RailType railtype)
00285 {
00286 extern RailtypeInfo _railtypes[RAILTYPE_END];
00287 assert(railtype < RAILTYPE_END);
00288 return &_railtypes[railtype];
00289 }
00290
00299 static inline bool IsCompatibleRail(RailType enginetype, RailType tiletype)
00300 {
00301 return HasBit(GetRailTypeInfo(enginetype)->compatible_railtypes, tiletype);
00302 }
00303
00312 static inline bool HasPowerOnRail(RailType enginetype, RailType tiletype)
00313 {
00314 return HasBit(GetRailTypeInfo(enginetype)->powered_railtypes, tiletype);
00315 }
00316
00322 static inline bool RailNoLevelCrossings(RailType rt)
00323 {
00324 return HasBit(GetRailTypeInfo(rt)->flags, RTF_NO_LEVEL_CROSSING);
00325 }
00326
00332 static inline Money RailBuildCost(RailType railtype)
00333 {
00334 assert(railtype < RAILTYPE_END);
00335 return (_price[PR_BUILD_RAIL] * GetRailTypeInfo(railtype)->cost_multiplier) >> 3;
00336 }
00337
00343 static inline Money RailClearCost(RailType railtype)
00344 {
00345
00346
00347
00348
00349
00350 assert(railtype < RAILTYPE_END);
00351 return max(_price[PR_CLEAR_RAIL], -RailBuildCost(railtype) * 3 / 4);
00352 }
00353
00360 static inline Money RailConvertCost(RailType from, RailType to)
00361 {
00362
00363
00364 Money rebuildcost = RailBuildCost(to) + RailClearCost(from);
00365
00366
00367
00368
00369
00370 if (HasPowerOnRail(from, to) || HasPowerOnRail(to, from)) {
00371 Money upgradecost = RailBuildCost(to) / 8 + max((Money)0, RailBuildCost(to) - RailBuildCost(from));
00372 return min(upgradecost, rebuildcost);
00373 }
00374
00375
00376
00377 return rebuildcost;
00378 }
00379
00387 static inline Money RailMaintenanceCost(RailType railtype, uint32 num, uint32 total_num)
00388 {
00389 assert(railtype < RAILTYPE_END);
00390 return (_price[PR_INFRASTRUCTURE_RAIL] * GetRailTypeInfo(railtype)->maintenance_multiplier * num * (1 + IntSqrt(total_num))) >> 11;
00391 }
00392
00398 static inline Money SignalMaintenanceCost(uint32 num)
00399 {
00400 return (_price[PR_INFRASTRUCTURE_RAIL] * 15 * num * (1 + IntSqrt(num))) >> 8;
00401 }
00402
00403 void DrawTrainDepotSprite(int x, int y, int image, RailType railtype);
00404 int TicksToLeaveDepot(const Train *v);
00405
00406 Foundation GetRailFoundation(Slope tileh, TrackBits bits);
00407
00408
00409 bool HasRailtypeAvail(const CompanyID company, const RailType railtype);
00410 bool ValParamRailtype(const RailType rail);
00411
00412 RailTypes AddDateIntroducedRailTypes(RailTypes current, Date date);
00413
00414 RailType GetBestRailtype(const CompanyID company);
00415 RailTypes GetCompanyRailtypes(const CompanyID c);
00416
00417 RailType GetRailTypeByLabel(RailTypeLabel label, bool allow_alternate_labels = true);
00418
00419 void ResetRailTypes();
00420 void InitRailTypes();
00421 RailType AllocateRailType(RailTypeLabel label);
00422
00423 #endif