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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_END,
00050 };
00051
00056 enum RailTrackOffset {
00057 RTO_X,
00058 RTO_Y,
00059 RTO_N,
00060 RTO_S,
00061 RTO_E,
00062 RTO_W,
00063 RTO_SLOPE_NE,
00064 RTO_SLOPE_SE,
00065 RTO_SLOPE_SW,
00066 RTO_SLOPE_NW,
00067 RTO_CROSSING_XY,
00068 RTO_JUNCTION_SW,
00069 RTO_JUNCTION_NE,
00070 RTO_JUNCTION_SE,
00071 RTO_JUNCTION_NW,
00072 RTO_JUNCTION_NSEW,
00073 };
00074
00078 enum RailTrackBridgeOffset {
00079 RTBO_X,
00080 RTBO_Y,
00081 RTBO_SLOPE,
00082 };
00083
00088 enum RailFenceOffset {
00089 RFO_FLAT_X,
00090 RFO_FLAT_Y,
00091 RFO_FLAT_VERT,
00092 RFO_FLAT_HORZ,
00093 RFO_SLOPE_SW,
00094 RFO_SLOPE_SE,
00095 RFO_SLOPE_NE,
00096 RFO_SLOPE_NW,
00097 };
00098
00100 typedef SmallVector<RailTypeLabel, 4> RailTypeLabelList;
00101
00105 struct RailtypeInfo {
00110 struct {
00111 SpriteID track_y;
00112 SpriteID track_ns;
00113 SpriteID ground;
00114 SpriteID single_x;
00115 SpriteID single_y;
00116 SpriteID single_n;
00117 SpriteID single_s;
00118 SpriteID single_e;
00119 SpriteID single_w;
00120 SpriteID single_sloped;
00121 SpriteID crossing;
00122 SpriteID tunnel;
00123 } base_sprites;
00124
00129 struct {
00130 SpriteID build_ns_rail;
00131 SpriteID build_x_rail;
00132 SpriteID build_ew_rail;
00133 SpriteID build_y_rail;
00134 SpriteID auto_rail;
00135 SpriteID build_depot;
00136 SpriteID build_tunnel;
00137 SpriteID convert_rail;
00138 } gui_sprites;
00139
00140 struct {
00141 CursorID rail_ns;
00142 CursorID rail_swne;
00143 CursorID rail_ew;
00144 CursorID rail_nwse;
00145 CursorID autorail;
00146 CursorID depot;
00147 CursorID tunnel;
00148 CursorID convert;
00149 } cursor;
00150
00151 struct {
00152 StringID name;
00153 StringID toolbar_caption;
00154 StringID menu_text;
00155 StringID build_caption;
00156 StringID replace_text;
00157 StringID new_loco;
00158 } strings;
00159
00161 SpriteID snow_offset;
00162
00164 RailTypes powered_railtypes;
00165
00167 RailTypes compatible_railtypes;
00168
00172 SpriteID bridge_offset;
00173
00177 byte fallback_railtype;
00178
00182 byte curve_speed;
00183
00187 RailTypeFlags flags;
00188
00192 uint16 cost_multiplier;
00193
00197 uint16 maintenance_multiplier;
00198
00202 uint8 acceleration_type;
00203
00207 uint16 max_speed;
00208
00212 RailTypeLabel label;
00213
00217 RailTypeLabelList alternate_labels;
00218
00222 byte map_colour;
00223
00231 Date introduction_date;
00232
00237 RailTypes introduction_required_railtypes;
00238
00242 RailTypes introduces_railtypes;
00243
00247 byte sorting_order;
00248
00252 const GRFFile *grffile[RTSG_END];
00253
00257 const SpriteGroup *group[RTSG_END];
00258
00259 inline bool UsesOverlay() const
00260 {
00261 return this->group[RTSG_GROUND] != NULL;
00262 }
00263
00271 inline uint GetRailtypeSpriteOffset() const
00272 {
00273 return 82 * this->fallback_railtype;
00274 }
00275 };
00276
00277
00283 static inline const RailtypeInfo *GetRailTypeInfo(RailType railtype)
00284 {
00285 extern RailtypeInfo _railtypes[RAILTYPE_END];
00286 assert(railtype < RAILTYPE_END);
00287 return &_railtypes[railtype];
00288 }
00289
00298 static inline bool IsCompatibleRail(RailType enginetype, RailType tiletype)
00299 {
00300 return HasBit(GetRailTypeInfo(enginetype)->compatible_railtypes, tiletype);
00301 }
00302
00311 static inline bool HasPowerOnRail(RailType enginetype, RailType tiletype)
00312 {
00313 return HasBit(GetRailTypeInfo(enginetype)->powered_railtypes, tiletype);
00314 }
00315
00321 static inline bool RailNoLevelCrossings(RailType rt)
00322 {
00323 return HasBit(GetRailTypeInfo(rt)->flags, RTF_NO_LEVEL_CROSSING);
00324 }
00325
00331 static inline Money RailBuildCost(RailType railtype)
00332 {
00333 assert(railtype < RAILTYPE_END);
00334 return (_price[PR_BUILD_RAIL] * GetRailTypeInfo(railtype)->cost_multiplier) >> 3;
00335 }
00336
00342 static inline Money RailClearCost(RailType railtype)
00343 {
00344
00345
00346
00347
00348
00349 assert(railtype < RAILTYPE_END);
00350 return max(_price[PR_CLEAR_RAIL], -RailBuildCost(railtype) * 3 / 4);
00351 }
00352
00359 static inline Money RailConvertCost(RailType from, RailType to)
00360 {
00361
00362
00363 Money rebuildcost = RailBuildCost(to) + RailClearCost(from);
00364
00365
00366
00367
00368
00369 if (HasPowerOnRail(from, to) || HasPowerOnRail(to, from)) {
00370 Money upgradecost = RailBuildCost(to) / 8 + max((Money)0, RailBuildCost(to) - RailBuildCost(from));
00371 return min(upgradecost, rebuildcost);
00372 }
00373
00374
00375
00376 return rebuildcost;
00377 }
00378
00386 static inline Money RailMaintenanceCost(RailType railtype, uint32 num, uint32 total_num)
00387 {
00388 assert(railtype < RAILTYPE_END);
00389 return (_price[PR_INFRASTRUCTURE_RAIL] * GetRailTypeInfo(railtype)->maintenance_multiplier * num * (1 + IntSqrt(total_num))) >> 11;
00390 }
00391
00397 static inline Money SignalMaintenanceCost(uint32 num)
00398 {
00399 return (_price[PR_INFRASTRUCTURE_RAIL] * 15 * num * (1 + IntSqrt(num))) >> 8;
00400 }
00401
00402 void DrawTrainDepotSprite(int x, int y, int image, RailType railtype);
00403 int TicksToLeaveDepot(const Train *v);
00404
00405 Foundation GetRailFoundation(Slope tileh, TrackBits bits);
00406
00407
00408 bool HasRailtypeAvail(const CompanyID company, const RailType railtype);
00409 bool ValParamRailtype(const RailType rail);
00410
00411 RailTypes AddDateIntroducedRailTypes(RailTypes current, Date date);
00412
00413 RailType GetBestRailtype(const CompanyID company);
00414 RailTypes GetCompanyRailtypes(const CompanyID c);
00415
00416 RailType GetRailTypeByLabel(RailTypeLabel label, bool allow_alternate_labels = true);
00417
00418 void ResetRailTypes();
00419 void InitRailTypes();
00420 RailType AllocateRailType(RailTypeLabel label);
00421
00422 #endif