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GRF: Add road stops variable for road info of nearby plain road tile

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See: #464
This commit is contained in:
Jonathan G Rennison
2022-12-24 18:52:57 +00:00
parent 6b8f799a1c
commit 8af4ac8a4c
6 changed files with 61 additions and 2 deletions
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17
src/newgrf_roadstop.cpp
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@@ -187,6 +187,23 @@ uint32 RoadStopScopeResolver::GetVariable(uint16 variable, uint32 parameter, Get
return ssl.grfid;
}
/* Road info of nearby tiles */
case 0x6B: {
if (this->tile == INVALID_TILE) return 0xFFFFFFFF;
TileIndex nearby_tile = GetNearbyTile(parameter, this->tile);
if (!IsNormalRoadTile(nearby_tile)) return 0xFFFFFFFF;
RoadBits road = GetRoadBits(nearby_tile, RTT_ROAD);
RoadBits tram = GetRoadBits(nearby_tile, RTT_TRAM);
Slope tileh = GetTileSlope(nearby_tile);
extern uint GetRoadSpriteOffset(Slope slope, RoadBits bits);
uint road_offset = (road == 0) ? 0xFF : GetRoadSpriteOffset(tileh, road);
uint tram_offset = (tram == 0) ? 0xFF : GetRoadSpriteOffset(tileh, tram);
return (tram_offset << 16) | (road_offset << 8) | (tram << 4) | (road);
}
case 0xF0: return this->st == nullptr ? 0 : this->st->facilities; // facilities
case 0xFA: return Clamp((this->st == nullptr ? _date : this->st->build_date) - DAYS_TILL_ORIGINAL_BASE_YEAR, 0, 65535); // build date