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@ r28645:c09eac136c46
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Location: cpp/openttd-patchpack/source/src/newgrf_roadtype.cpp
r28645:c09eac136c46
6.3 KiB
text/x-c
Change: Link houses production on industry chain graph by TPE_PASSENGERS or TPE_MAIL cargo.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 | /*
* 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 "core/container_func.hpp"
#include "debug.h"
#include "newgrf_roadtype.h"
#include "timer/timer_game_calendar.h"
#include "depot_base.h"
#include "town.h"
#include "safeguards.h"
/* virtual */ uint32_t RoadTypeScopeResolver::GetRandomBits() const
{
uint tmp = CountBits(this->tile.base() + (TileX(this->tile) + TileY(this->tile)) * TILE_SIZE);
return GB(tmp, 0, 2);
}
/* virtual */ uint32_t RoadTypeScopeResolver::GetVariable(byte variable, [[maybe_unused]] uint32_t 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 TimerGameCalendar::date.base();
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.base();
return TimerGameCalendar::date.base();
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_t 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_t param1, uint32_t 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_t 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_t 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->empty()) 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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