# newgrf_railtype.h

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    00001 /* $Id: newgrf_railtype.h 24693 2012-11-10 20:46:39Z alberth $ */
    00002
    00003 /*
    00004  * This file is part of OpenTTD.
    00005  * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
    00006  * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
    00007  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
    00008  */
    00009
    00012 #ifndef NEWGRF_RAILTYPE_H
    00013 #define NEWGRF_RAILTYPE_H
    00014
    00015 #include "rail.h"
    00016 #include "newgrf_commons.h"
    00017 #include "newgrf_spritegroup.h"
    00018
    00020 struct RailTypeScopeResolver : public ScopeResolver {
    00021   TileIndex tile;
    00022   TileContext context;
    00023
    00024   RailTypeScopeResolver(ResolverObject *ro, TileIndex tile, TileContext context);
    00025
    00026   /* virtual */ uint32 GetRandomBits() const;
    00027   /* virtual */ uint32 GetVariable(byte variable, uint32 parameter, bool *available) const;
    00028 };
    00029
    00031 struct RailTypeResolverObject : public ResolverObject {
    00032   RailTypeScopeResolver railtype_scope;
    00033
    00034   RailTypeResolverObject(TileIndex tile, TileContext context, const GRFFile *grffile, uint32 param1 = 0, uint32 param2 = 0);
    00035
    00036   /* virtual */ ScopeResolver *GetScope(VarSpriteGroupScope scope = VSG_SCOPE_SELF, byte relative = 0)
    00037   {
    00038     switch (scope) {
    00039       case VSG_SCOPE_SELF: return &this->railtype_scope;
    00040       default:             return ResolverObject::GetScope(scope, relative);
    00041     }
    00042   }
    00043
    00044   /* virtual */ const SpriteGroup *ResolveReal(const RealSpriteGroup *group) const;
    00045 };
    00046
    00047 SpriteID GetCustomRailSprite(const RailtypeInfo *rti, TileIndex tile, RailTypeSpriteGroup rtsg, TileContext context = TCX_NORMAL);
    00048 SpriteID GetCustomSignalSprite(const RailtypeInfo *rti, TileIndex tile, SignalType type, SignalVariant var, SignalState state, bool gui = false);
    00049
    00050 uint8 GetReverseRailTypeTranslation(RailType railtype, const GRFFile *grffile);
    00051
    00052 #endif /* NEWGRF_RAILTYPE_H */