Initial support for NewGRF road stops (bus and lorry stops)
This commit is contained in:
Jonathan G Rennison
147
src/newgrf_roadstop.h
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147
src/newgrf_roadstop.h
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/*
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* This file is part of OpenTTD.
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* 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.
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* 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.
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* 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/>.
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*/
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/**
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* @file newgrf_roadstop.h NewGRF definitions and structures for road stops.
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*/
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#ifndef NEWGRF_ROADSTATION_H
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#define NEWGRF_ROADSTATION_H
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#include "newgrf_animation_type.h"
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#include "newgrf_spritegroup.h"
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#include "newgrf_class.h"
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#include "newgrf_commons.h"
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#include "newgrf_town.h"
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#include "road.h"
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/** The maximum amount of roadstops a single GRF is allowed to add */
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static const int NUM_ROADSTOPS = 64000U;
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static const int NUM_ROADSTOPS_PER_GRF = 255;
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enum RoadStopClassID : byte {
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ROADSTOP_CLASS_BEGIN = 0, ///< The lowest valid value
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ROADSTOP_CLASS_DFLT = 0, ///< Default road stop class.
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ROADSTOP_CLASS_WAYP, ///< Waypoint class.
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ROADSTOP_CLASS_MAX = 255, ///< Maximum number of classes.
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};
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DECLARE_POSTFIX_INCREMENT(RoadStopClassID)
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/* Some Triggers etc. */
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enum RoadStopRandomTrigger {
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RSRT_NEW_CARGO, ///< Trigger roadstop on arrival of new cargo.
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RSRT_CARGO_TAKEN, ///< Trigger roadstop when cargo is completely taken.
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RSRT_VEH_LOADS, ///< Trigger roadstop when road vehicle loads.
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};
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/**
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* Various different options for availability, restricting
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* the roadstop to be only for busses or for trucks.
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*/
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enum RoadStopAvailabilityType : byte {
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ROADSTOPTYPE_PASSENGER, ///< This RoadStop is for passenger (bus) stops.
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ROADSTOPTYPE_FREIGHT, ///< This RoadStop is for freight (truck) stops.
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ROADSTOPTYPE_ALL, ///< This RoadStop is for both types of station road stops.
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ROADSTOPTYPE_END,
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};
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/**
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* Different draw modes to disallow rendering of some parts of the stop
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* or road.
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*/
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enum RoadStopDrawMode : byte {
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ROADSTOP_DRAW_MODE_NONE = 0,
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ROADSTOP_DRAW_MODE_ROAD = 1 << 0, ///< 0b01, Draw the road itself
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ROADSTOP_DRAW_MODE_OVERLAY = 1 << 1, ///< 0b10, Draw the road overlay for roadstops, e.g. pavement
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};
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DECLARE_ENUM_AS_BIT_SET(RoadStopDrawMode)
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/** Scope resolver for road stops. */
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struct RoadStopScopeResolver : public ScopeResolver {
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TileIndex tile; ///< %Tile of the station.
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struct BaseStation *st; ///< Instance of the station.
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const struct RoadStopSpec *roadstopspec; ///< Station (type) specification.
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CargoID cargo_type; ///< Type of cargo of the station.
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StationType type; ///< Station type.
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uint8 view; ///< Station axis.
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const RoadTypeInfo *rti; ///< Road type info
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RoadStopScopeResolver(ResolverObject& ro, BaseStation* st, const RoadStopSpec *roadstopspec, TileIndex tile, const RoadTypeInfo *rti, StationType type, uint8 view = 0)
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: ScopeResolver(ro), tile(tile), st(st), roadstopspec(roadstopspec), type(type), view(view), rti(rti)
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{
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}
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uint32 GetRandomBits() const override;
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uint32 GetTriggers() const override;
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uint32 GetVariable(uint16 variable, uint32 parameter, GetVariableExtra *extra) const override;
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};
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/** Road stop resolver. */
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struct RoadStopResolverObject : public ResolverObject {
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RoadStopScopeResolver roadstop_scope; ///< The stop scope resolver.
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TownScopeResolver *town_scope; ///< The town scope resolver (created on the first call).
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RoadStopResolverObject(const RoadStopSpec* roadstopspec, BaseStation* st, TileIndex tile, const RoadTypeInfo *rti, StationType type, uint8 view, CallbackID callback = CBID_NO_CALLBACK, uint32 param1 = 0, uint32 param2 = 0);
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~RoadStopResolverObject();
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ScopeResolver* GetScope(VarSpriteGroupScope scope = VSG_SCOPE_SELF, byte relative = 0) override {
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switch (scope) {
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case VSG_SCOPE_SELF: return &this->roadstop_scope;
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case VSG_SCOPE_PARENT: {
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TownScopeResolver *tsr = this->GetTown();
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if (tsr != nullptr) return tsr;
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FALLTHROUGH;
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}
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default: return ResolverObject::GetScope(scope, relative);
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}
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}
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TownScopeResolver *GetTown();
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const SpriteGroup *ResolveReal(const RealSpriteGroup *group) const override;
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};
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/** Road stop specification. */
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struct RoadStopSpec {
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// We'll have a default and a fence "cargo". Or maybe just a default one?
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GRFFilePropsBase<NUM_CARGO + 1> grf_prop;
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RoadStopClassID cls_id; ///< The class to which this spec belongs.
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int spec_id; ///< The ID of this spec inside the class.
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StringID name; ///< Name of this stop
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RoadStopAvailabilityType stop_type = ROADSTOPTYPE_ALL;
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RoadStopDrawMode draw_mode = ROADSTOP_DRAW_MODE_ROAD | ROADSTOP_DRAW_MODE_OVERLAY;
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CargoTypes cargo_triggers = 0; ///< Bitmask of cargo types which cause trigger re-randomizing
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static const RoadStopSpec *Get(uint16 index);
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};
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template <>
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struct EnumPropsT<RoadStopClassID> : MakeEnumPropsT<RoadStopClassID, byte, ROADSTOP_CLASS_BEGIN, ROADSTOP_CLASS_MAX, ROADSTOP_CLASS_MAX, 8> {};
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typedef NewGRFClass<RoadStopSpec, RoadStopClassID, ROADSTOP_CLASS_MAX> RoadStopClass;
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void DrawRoadStopTile(int x, int y, RoadType roadtype, const RoadStopSpec *spec, StationType type, int view);
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void TriggerRoadStopRandomisation(Station *st, TileIndex tile, RoadStopRandomTrigger trigger, CargoID cargo_type = CT_INVALID);
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bool GetIfNewStopsByType(RoadStopType rs);
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bool GetIfClassHasNewStopsByType(RoadStopClass *roadstopclass, RoadStopType rs);
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bool GetIfStopIsForType(const RoadStopSpec *roadstopspec, RoadStopType rs);
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uint GetCountOfCompatibleStopsByType(RoadStopClass *roadstopclass, RoadStopType rs);
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const RoadStopSpec *GetRoadStopSpec(TileIndex t);
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int AllocateRoadStopSpecToStation(const RoadStopSpec *statspec, BaseStation *st, bool exec);
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void DeallocateRoadStopSpecFromStation(BaseStation *st, byte specindex);
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void StationUpdateRoadStopCachedTriggers(BaseStation *st);
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#endif /* NEWGRF_ROADSTATION_H */
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