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Diffstat (limited to 'src/newgrf_roadtype.h')
-rw-r--r-- | src/newgrf_roadtype.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/src/newgrf_roadtype.h b/src/newgrf_roadtype.h new file mode 100644 index 000000000..2da7a82c1 --- /dev/null +++ b/src/newgrf_roadtype.h @@ -0,0 +1,51 @@ +/* $Id$ */ + +/* + * This file is part of OpenTTD. + * 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. + * 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. + * 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/>. + */ + +/** @file newgrf_roadtype.h NewGRF handling of road types. */ + +#ifndef NEWGRF_ROADTYPE_H +#define NEWGRF_ROADTYPE_H + +#include "road.h" +#include "newgrf_commons.h" +#include "newgrf_spritegroup.h" + +/** Resolver for the railtype scope. */ +struct RoadTypeScopeResolver : public ScopeResolver { + TileIndex tile; ///< Tracktile. For track on a bridge this is the southern bridgehead. + TileContext context; ///< Are we resolving sprites for the upper halftile, or on a bridge? + + RoadTypeScopeResolver(ResolverObject &ro, TileIndex tile, TileContext context); + + /* virtual */ uint32 GetRandomBits() const; + /* virtual */ uint32 GetVariable(byte variable, uint32 parameter, bool *available) const; +}; + +/** Resolver object for road types. */ +struct RoadTypeResolverObject : public ResolverObject { + RoadTypeScopeResolver roadtype_scope; ///< Resolver for the roadtype scope. + + RoadTypeResolverObject(const RoadTypeInfo *rti, TileIndex tile, TileContext context, RoadTypeSpriteGroup rtsg, uint32 param1 = 0, uint32 param2 = 0); + + /* virtual */ ScopeResolver *GetScope(VarSpriteGroupScope scope = VSG_SCOPE_SELF, byte relative = 0) + { + switch (scope) { + case VSG_SCOPE_SELF: return &this->roadtype_scope; + default: return ResolverObject::GetScope(scope, relative); + } + } + + /* virtual */ const SpriteGroup *ResolveReal(const RealSpriteGroup *group) const; +}; + +SpriteID GetCustomRoadSprite(const RoadTypeInfo *rti, TileIndex tile, RoadTypeSpriteGroup rtsg, TileContext context = TCX_NORMAL, uint *num_results = nullptr); + +uint8 GetReverseRoadTypeTranslation(RoadType roadtype, const GRFFile *grffile); + +#endif /* NEWGRF_ROADTYPE_H */ |