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Location: cpp/openttd-patchpack/source/src/newgrf_roadtype.cpp - annotation
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Update: Translations from eints
luxembourgish: 3 changes by phreeze83
hebrew: 125 changes by haimlm
luxembourgish: 3 changes by phreeze83
hebrew: 125 changes by haimlm
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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_roadtype.cpp NewGRF handling of road types. */
#include "stdafx.h"
#include "debug.h"
#include "newgrf_roadtype.h"
#include "date_func.h"
#include "depot_base.h"
#include "town.h"
#include "safeguards.h"
/* virtual */ uint32 RoadTypeScopeResolver::GetRandomBits() const
{
uint tmp = CountBits(static_cast<uint32>(this->tile + (TileX(this->tile) + TileY(this->tile)) * TILE_SIZE));
return GB(tmp, 0, 2);
}
/* virtual */ uint32 RoadTypeScopeResolver::GetVariable(byte variable, uint32 parameter, bool *available) const
{
if (this->tile == INVALID_TILE) {
switch (variable) {
case 0x40: return 0;
case 0x41: return 0;
case 0x42: return 0;
case 0x43: return _date;
case 0x44: return HZB_TOWN_EDGE;
}
}
switch (variable) {
case 0x40: return GetTerrainType(this->tile, this->context);
case 0x41: return 0;
case 0x42: return IsLevelCrossingTile(this->tile) && IsCrossingBarred(this->tile);
case 0x43:
if (IsRoadDepotTile(this->tile)) return Depot::GetByTile(this->tile)->build_date;
return _date;
case 0x44: {
const Town *t = nullptr;
if (IsRoadDepotTile(this->tile)) {
t = Depot::GetByTile(this->tile)->town;
} else {
t = ClosestTownFromTile(this->tile, UINT_MAX);
}
return t != nullptr ? GetTownRadiusGroup(t, this->tile) : HZB_TOWN_EDGE;
}
}
Debug(grf, 1, "Unhandled road type tile variable 0x{:X}", variable);
*available = false;
return UINT_MAX;
}
GrfSpecFeature RoadTypeResolverObject::GetFeature() const
{
RoadType rt = GetRoadTypeByLabel(this->roadtype_scope.rti->label, false);
switch (GetRoadTramType(rt)) {
case RTT_ROAD: return GSF_ROADTYPES;
case RTT_TRAM: return GSF_TRAMTYPES;
default: return GSF_INVALID;
}
}
uint32 RoadTypeResolverObject::GetDebugID() const
{
return this->roadtype_scope.rti->label;
}
/**
* Resolver object for road types.
* @param rti Roadtype. nullptr in NewGRF Inspect window.
* @param tile %Tile containing the track. For track on a bridge this is the southern bridgehead.
* @param context Are we resolving sprites for the upper halftile, or on a bridge?
* @param rtsg Roadpart of interest
* @param param1 Extra parameter (first parameter of the callback, except roadtypes do not have callbacks).
* @param param2 Extra parameter (second parameter of the callback, except roadtypes do not have callbacks).
*/
RoadTypeResolverObject::RoadTypeResolverObject(const RoadTypeInfo *rti, TileIndex tile, TileContext context, RoadTypeSpriteGroup rtsg, uint32 param1, uint32 param2)
: ResolverObject(rti != nullptr ? rti->grffile[rtsg] : nullptr, CBID_NO_CALLBACK, param1, param2), roadtype_scope(*this, rti, tile, context)
{
this->root_spritegroup = rti != nullptr ? rti->group[rtsg] : nullptr;
}
/**
* Get the sprite to draw for the given tile.
* @param rti The road type data (spec).
* @param tile The tile to get the sprite for.
* @param rtsg The type of sprite to draw.
* @param content Where are we drawing the tile?
* @param [out] num_results If not nullptr, return the number of sprites in the spriteset.
* @return The sprite to draw.
*/
SpriteID GetCustomRoadSprite(const RoadTypeInfo *rti, TileIndex tile, RoadTypeSpriteGroup rtsg, TileContext context, uint *num_results)
{
assert(rtsg < ROTSG_END);
if (rti->group[rtsg] == nullptr) return 0;
RoadTypeResolverObject object(rti, tile, context, rtsg);
const SpriteGroup *group = object.Resolve();
if (group == nullptr || group->GetNumResults() == 0) return 0;
if (num_results) *num_results = group->GetNumResults();
return group->GetResult();
}
/**
* Translate an index to the GRF-local road/tramtype-translation table into a RoadType.
* @param rtt Whether to index the road- or tramtype-table.
* @param tracktype Index into GRF-local translation table.
* @param grffile Originating GRF file.
* @return RoadType or INVALID_ROADTYPE if the roadtype is unknown.
*/
RoadType GetRoadTypeTranslation(RoadTramType rtt, uint8 tracktype, const GRFFile *grffile)
{
/* Because OpenTTD mixes RoadTypes and TramTypes into the same type,
* the mapping of the original road- and tramtypes does not match the default GRF-local mapping.
* So, this function cannot provide any similar behavior to GetCargoTranslation() and GetRailTypeTranslation()
* when the GRF defines no translation table.
* But since there is only one default road/tram-type, this makes little sense anyway.
* So for GRF without translation table, we always return INVALID_ROADTYPE.
*/
if (grffile == nullptr) return INVALID_ROADTYPE;
const auto &list = rtt == RTT_TRAM ? grffile->tramtype_list : grffile->roadtype_list;
if (tracktype >= list.size()) return INVALID_ROADTYPE;
/* Look up roadtype including alternate labels. */
RoadType result = GetRoadTypeByLabel(list[tracktype]);
/* Check whether the result is actually the wanted road/tram-type */
if (result != INVALID_ROADTYPE && GetRoadTramType(result) != rtt) return INVALID_ROADTYPE;
return result;
}
/**
* Perform a reverse roadtype lookup to get the GRF internal ID.
* @param roadtype The global (OpenTTD) roadtype.
* @param grffile The GRF to do the lookup for.
* @return the GRF internal ID.
*/
uint8 GetReverseRoadTypeTranslation(RoadType roadtype, const GRFFile *grffile)
{
/* No road type table present, return road type as-is */
if (grffile == nullptr) return roadtype;
const std::vector<RoadTypeLabel> *list = RoadTypeIsRoad(roadtype) ? &grffile->roadtype_list : &grffile->tramtype_list;
if (list->size() == 0) return roadtype;
/* Look for a matching road type label in the table */
RoadTypeLabel label = GetRoadTypeInfo(roadtype)->label;
int index = find_index(*list, label);
if (index >= 0) return index;
/* If not found, return as invalid */
return 0xFF;
}
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