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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
00102 struct RailtypeInfo {
00107 struct {
00108 SpriteID track_y;
00109 SpriteID track_ns;
00110 SpriteID ground;
00111 SpriteID single_x;
00112 SpriteID single_y;
00113 SpriteID single_n;
00114 SpriteID single_s;
00115 SpriteID single_e;
00116 SpriteID single_w;
00117 SpriteID single_sloped;
00118 SpriteID crossing;
00119 SpriteID tunnel;
00120 } base_sprites;
00121
00126 struct {
00127 SpriteID build_ns_rail;
00128 SpriteID build_x_rail;
00129 SpriteID build_ew_rail;
00130 SpriteID build_y_rail;
00131 SpriteID auto_rail;
00132 SpriteID build_depot;
00133 SpriteID build_tunnel;
00134 SpriteID convert_rail;
00135 } gui_sprites;
00136
00137 struct {
00138 CursorID rail_ns;
00139 CursorID rail_swne;
00140 CursorID rail_ew;
00141 CursorID rail_nwse;
00142 CursorID autorail;
00143 CursorID depot;
00144 CursorID tunnel;
00145 CursorID convert;
00146 } cursor;
00147
00148 struct {
00149 StringID toolbar_caption;
00150 StringID menu_text;
00151 StringID build_caption;
00152 StringID replace_text;
00153 StringID new_loco;
00154 } strings;
00155
00157 SpriteID snow_offset;
00158
00160 RailTypes powered_railtypes;
00161
00163 RailTypes compatible_railtypes;
00164
00168 SpriteID bridge_offset;
00169
00173 byte fallback_railtype;
00174
00178 byte curve_speed;
00179
00183 RailTypeFlags flags;
00184
00188 uint16 cost_multiplier;
00189
00193 uint8 acceleration_type;
00194
00198 uint16 max_speed;
00199
00203 RailTypeLabel label;
00204
00208 byte map_colour;
00209
00217 Date introduction_date;
00218
00223 RailTypes introduction_required_railtypes;
00224
00228 RailTypes introduces_railtypes;
00229
00233 byte sorting_order;
00234
00238 const SpriteGroup *group[RTSG_END];
00239
00240 inline bool UsesOverlay() const
00241 {
00242 return this->group[RTSG_GROUND] != NULL;
00243 }
00244
00252 inline uint GetRailtypeSpriteOffset() const
00253 {
00254 return 82 * this->fallback_railtype;
00255 }
00256 };
00257
00258
00264 static inline const RailtypeInfo *GetRailTypeInfo(RailType railtype)
00265 {
00266 extern RailtypeInfo _railtypes[RAILTYPE_END];
00267 assert(railtype < RAILTYPE_END);
00268 return &_railtypes[railtype];
00269 }
00270
00279 static inline bool IsCompatibleRail(RailType enginetype, RailType tiletype)
00280 {
00281 return HasBit(GetRailTypeInfo(enginetype)->compatible_railtypes, tiletype);
00282 }
00283
00292 static inline bool HasPowerOnRail(RailType enginetype, RailType tiletype)
00293 {
00294 return HasBit(GetRailTypeInfo(enginetype)->powered_railtypes, tiletype);
00295 }
00296
00302 static inline bool RailNoLevelCrossings(RailType rt)
00303 {
00304 return HasBit(GetRailTypeInfo(rt)->flags, RTF_NO_LEVEL_CROSSING);
00305 }
00306
00312 static inline Money RailBuildCost(RailType railtype)
00313 {
00314 assert(railtype < RAILTYPE_END);
00315 return (_price[PR_BUILD_RAIL] * GetRailTypeInfo(railtype)->cost_multiplier) >> 3;
00316 }
00317
00323 static inline Money RailClearCost(RailType railtype)
00324 {
00325
00326
00327
00328
00329
00330 assert(railtype < RAILTYPE_END);
00331 return max(_price[PR_CLEAR_RAIL], -RailBuildCost(railtype) * 3 / 4);
00332 }
00333
00340 static inline Money RailConvertCost(RailType from, RailType to)
00341 {
00342
00343
00344 Money rebuildcost = RailBuildCost(to) + RailClearCost(from);
00345
00346
00347
00348
00349
00350 if (HasPowerOnRail(from, to) || HasPowerOnRail(to, from)) {
00351 Money upgradecost = RailBuildCost(to) / 8 + max((Money)0, RailBuildCost(to) - RailBuildCost(from));
00352 return min(upgradecost, rebuildcost);
00353 }
00354
00355
00356
00357 return rebuildcost;
00358 }
00359
00360 void DrawTrainDepotSprite(int x, int y, int image, RailType railtype);
00361 int TicksToLeaveDepot(const Train *v);
00362
00363 Foundation GetRailFoundation(Slope tileh, TrackBits bits);
00364
00365
00366 bool HasRailtypeAvail(const CompanyID company, const RailType railtype);
00367 bool ValParamRailtype(const RailType rail);
00368
00369 RailTypes AddDateIntroducedRailTypes(RailTypes current, Date date);
00370
00371 RailType GetBestRailtype(const CompanyID company);
00372 RailTypes GetCompanyRailtypes(const CompanyID c);
00373
00374 RailType GetRailTypeByLabel(RailTypeLabel label);
00375
00376 void ResetRailTypes();
00377 void InitRailTypes();
00378 RailType AllocateRailType(RailTypeLabel label);
00379
00380 #endif