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NewGRF: Allow using Action 2/3 for custom signal sprites

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This is mostly the same format as the railtype custom signal mechanism
This commit is contained in:
Jonathan G Rennison
2021-08-20 00:49:48 +01:00
parent a6b0d0cde4
commit 322a046f49
10 changed files with 300 additions and 18 deletions
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7
src/newgrf_railtype.h
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@@ -55,8 +55,13 @@ struct RailTypeResolverObject : public ResolverObject {
uint32 GetDebugID() const override;
};
struct CustomSignalSpriteResult {
SpriteID sprite_id;
bool restricted_valid;
};
SpriteID GetCustomRailSprite(const RailtypeInfo *rti, TileIndex tile, RailTypeSpriteGroup rtsg, TileContext context = TCX_NORMAL, uint *num_results = nullptr);
SpriteID GetCustomSignalSprite(const RailtypeInfo *rti, TileIndex tile, SignalType type, SignalVariant var, SignalState state, bool gui = false, bool restricted = false);
CustomSignalSpriteResult GetCustomSignalSprite(const RailtypeInfo *rti, TileIndex tile, SignalType type, SignalVariant var, SignalState state, bool gui = false, bool restricted = false);
RailType GetRailTypeTranslation(uint8 railtype, const GRFFile *grffile);
uint8 GetReverseRailTypeTranslation(RailType railtype, const GRFFile *grffile);