Function countSurroundingTrees

src/OpenLoco/src/Map/TileManager.cpp:938–968

0x004BE048

    // 0x004BE048
    uint16_t countSurroundingTrees(const Pos2& pos)
    {
        // Search a 10x10 area centred at pos.
        // Initial tile position is the top left of the area.
        auto initialTilePos = World::toTileSpace(pos) - World::TilePos2(5, 5);

        uint16_t surroundingTrees = 0;
        for (const auto& tilePos : getClampedRange(initialTilePos, initialTilePos + TilePos2{ 10, 10 }))
        {
            auto tile = get(tilePos);
            for (auto& element : tile)
            {
                // NB: vanilla was checking for trees above the surface element.
                // This has been omitted from our implementation.
                auto* tree = element.as<TreeElement>();
                if (tree == nullptr)
                {
                    continue;
                }

                if (tree->isGhost())
                {
                    continue;
                }

                surroundingTrees++;
            }
        }

        return surroundingTrees;
    }

    // 0x004C5604
    uint16_t countNearbyWaterTiles(Pos2 pos)