Files @ r28396:ef195b601c72
Branch filter:

Location: cpp/openttd-patchpack/source/src/newgrf_roadstop.h - annotation

Peter Nelson
Fix: Pass townnameparts as parameter when testing townname based companyname. (#11685)

Length of returned string could vary and pass/fail the length check with a different
string than the final selection.
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/*
 * 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_roadstop.h NewGRF definitions and structures for road stops.
 */

#ifndef NEWGRF_ROADSTATION_H
#define NEWGRF_ROADSTATION_H

#include "newgrf_animation_type.h"
#include "newgrf_spritegroup.h"
#include "newgrf_class.h"
#include "newgrf_commons.h"
#include "newgrf_town.h"
#include "road.h"

/** The maximum amount of roadstops a single GRF is allowed to add */
static const int NUM_ROADSTOPS_PER_GRF = UINT16_MAX - 1;

enum RoadStopClassID : byte {
	ROADSTOP_CLASS_BEGIN = 0,    ///< The lowest valid value
	ROADSTOP_CLASS_DFLT = 0,     ///< Default road stop class.
	ROADSTOP_CLASS_WAYP,         ///< Waypoint class (unimplemented: this is reserved for future use with road waypoints).
	ROADSTOP_CLASS_MAX = 255,    ///< Maximum number of classes.
};
DECLARE_POSTFIX_INCREMENT(RoadStopClassID)

/* Some Triggers etc. */
enum RoadStopRandomTrigger {
	RSRT_NEW_CARGO,       ///< Trigger roadstop on arrival of new cargo.
	RSRT_CARGO_TAKEN,     ///< Trigger roadstop when cargo is completely taken.
	RSRT_VEH_ARRIVES,     ///< Trigger roadstop when road vehicle arrives.
	RSRT_VEH_DEPARTS,     ///< Trigger roadstop when road vehicle leaves.
	RSRT_VEH_LOADS,       ///< Trigger roadstop when road vehicle loads.
};

/**
 * Various different options for availability, restricting
 * the roadstop to be only for busses or for trucks.
 */
enum RoadStopAvailabilityType : byte {
	ROADSTOPTYPE_PASSENGER,    ///< This RoadStop is for passenger (bus) stops.
	ROADSTOPTYPE_FREIGHT,      ///< This RoadStop is for freight (truck) stops.
	ROADSTOPTYPE_ALL,          ///< This RoadStop is for both types of station road stops.

	ROADSTOPTYPE_END,
};

/**
 * Different draw modes to disallow rendering of some parts of the stop
 * or road.
 */
enum RoadStopDrawMode : byte {
	ROADSTOP_DRAW_MODE_NONE        = 0,
	ROADSTOP_DRAW_MODE_ROAD        = 1 << 0, ///< Bay stops: Draw the road itself
	ROADSTOP_DRAW_MODE_OVERLAY     = 1 << 1, ///< Drive-through stops: Draw the road overlay, e.g. pavement
};
DECLARE_ENUM_AS_BIT_SET(RoadStopDrawMode)

enum RoadStopSpecFlags {
	RSF_CB141_RANDOM_BITS       = 0, ///< Callback 141 needs random bits.
	RSF_NO_CATENARY             = 2, ///< Do not show catenary.
	RSF_DRIVE_THROUGH_ONLY      = 3, ///< Stop is drive-through only.
	RSF_NO_AUTO_ROAD_CONNECTION = 4, ///< No auto road connection.
	RSF_BUILD_MENU_ROAD_ONLY    = 5, ///< Only show in the road build menu (not tram).
	RSF_BUILD_MENU_TRAM_ONLY    = 6, ///< Only show in the tram build menu (not road).
};

/** Scope resolver for road stops. */
struct RoadStopScopeResolver : public ScopeResolver {
	TileIndex tile;                             ///< %Tile of the station.
	struct BaseStation *st;                     ///< Instance of the station.
	const struct RoadStopSpec *roadstopspec;    ///< Station (type) specification.
	CargoID cargo_type;                         ///< Type of cargo of the station.
	StationType type;                           ///< Station type.
	uint8_t view;                                 ///< Station axis.
	RoadType roadtype;                          ///< Road type (used when no tile)

	RoadStopScopeResolver(ResolverObject &ro, BaseStation *st, const RoadStopSpec *roadstopspec, TileIndex tile, RoadType roadtype, StationType type, uint8_t view = 0)
		: ScopeResolver(ro), tile(tile), st(st), roadstopspec(roadstopspec), type(type), view(view), roadtype(roadtype)
	{
	}

	uint32_t GetRandomBits() const override;
	uint32_t GetTriggers() const override;

	uint32_t GetVariable(byte variable, [[maybe_unused]] uint32_t parameter, bool *available) const override;
};

/** Road stop resolver. */
struct RoadStopResolverObject : public ResolverObject {
	RoadStopScopeResolver roadstop_scope; ///< The stop scope resolver.
	TownScopeResolver *town_scope;        ///< The town scope resolver (created on the first call).

	RoadStopResolverObject(const RoadStopSpec *roadstopspec, BaseStation *st, TileIndex tile, RoadType roadtype, StationType type, uint8_t view, CallbackID callback = CBID_NO_CALLBACK, uint32_t param1 = 0, uint32_t param2 = 0);
	~RoadStopResolverObject();

	ScopeResolver *GetScope(VarSpriteGroupScope scope = VSG_SCOPE_SELF, byte relative = 0) override
	{
		switch (scope) {
			case VSG_SCOPE_SELF: return &this->roadstop_scope;
			case VSG_SCOPE_PARENT: {
				TownScopeResolver *tsr = this->GetTown();
				if (tsr != nullptr) return tsr;
				FALLTHROUGH;
			}
			default: return ResolverObject::GetScope(scope, relative);
		}
	}

	TownScopeResolver *GetTown();

	const SpriteGroup *ResolveReal(const RealSpriteGroup *group) const override;
};

/** Road stop specification. */
struct RoadStopSpec {
	/**
	 * Properties related the the grf file.
	 * NUM_CARGO real cargo plus three pseudo cargo sprite groups.
	 * Used for obtaining the sprite offset of custom sprites, and for
	 * evaluating callbacks.
	 */
	GRFFilePropsBase<NUM_CARGO + 3> grf_prop;
	RoadStopClassID cls_id;     ///< The class to which this spec belongs.
	int spec_id;                ///< The ID of this spec inside the class.
	StringID name;              ///< Name of this stop

	RoadStopAvailabilityType stop_type = ROADSTOPTYPE_ALL;
	RoadStopDrawMode draw_mode = ROADSTOP_DRAW_MODE_ROAD | ROADSTOP_DRAW_MODE_OVERLAY;
	uint8_t callback_mask = 0;
	uint8_t flags = 0;

	CargoTypes cargo_triggers = 0; ///< Bitmask of cargo types which cause trigger re-randomizing

	AnimationInfo animation;

	byte bridge_height[6];             ///< Minimum height for a bridge above, 0 for none
	byte bridge_disallowed_pillars[6]; ///< Disallowed pillar flags for a bridge above

	uint8_t build_cost_multiplier = 16;  ///< Build cost multiplier per tile.
	uint8_t clear_cost_multiplier = 16;  ///< Clear cost multiplier per tile.

	/**
	 * Get the cost for building a road stop of this type.
	 * @return The cost for building.
	 */
	Money GetBuildCost(Price category) const { return GetPrice(category, this->build_cost_multiplier, this->grf_prop.grffile, -4); }

	/**
	 * Get the cost for clearing a road stop of this type.
	 * @return The cost for clearing.
	 */
	Money GetClearCost(Price category) const { return GetPrice(category, this->clear_cost_multiplier, this->grf_prop.grffile, -4); }

	static const RoadStopSpec *Get(uint16_t index);
};

typedef NewGRFClass<RoadStopSpec, RoadStopClassID, ROADSTOP_CLASS_MAX> RoadStopClass;

void DrawRoadStopTile(int x, int y, RoadType roadtype, const RoadStopSpec *spec, StationType type, int view);

uint16_t GetRoadStopCallback(CallbackID callback, uint32_t param1, uint32_t param2, const RoadStopSpec *roadstopspec, BaseStation *st, TileIndex tile, RoadType roadtype, StationType type, uint8_t view);

void AnimateRoadStopTile(TileIndex tile);
uint8_t GetRoadStopTileAnimationSpeed(TileIndex tile);
void TriggerRoadStopAnimation(BaseStation *st, TileIndex tile, StationAnimationTrigger trigger, CargoID cargo_type = CT_INVALID);
void TriggerRoadStopRandomisation(Station *st, TileIndex tile, RoadStopRandomTrigger trigger, CargoID cargo_type = CT_INVALID);

bool GetIfNewStopsByType(RoadStopType rs, RoadType roadtype);
bool GetIfClassHasNewStopsByType(RoadStopClass *roadstopclass, RoadStopType rs, RoadType roadtype);
bool GetIfStopIsForType(const RoadStopSpec *roadstopspec, RoadStopType rs, RoadType roadtype);

uint GetCountOfCompatibleStopsByType(RoadStopClass *roadstopclass, RoadStopType rs);

const RoadStopSpec *GetRoadStopSpec(TileIndex t);
int AllocateSpecToRoadStop(const RoadStopSpec *statspec, BaseStation *st, bool exec);
void DeallocateSpecFromRoadStop(BaseStation *st, byte specindex);
void RoadStopUpdateCachedTriggers(BaseStation *st);

#endif /* NEWGRF_ROADSTATION_H */