Method updateVision

game/state/battle/battle.cpp:1423–1453

}

void Battle::updateVision(GameState &state)
{
	std::set<sp<BattleUnit>> unitsToUpdate;
	for (auto &entry : units)
	{
		auto unit = entry.second;
		if (!unit->isConscious())
		{
			continue;
		}
		for (auto &pos : tilesChangedForVision)
		{
			auto vec = pos - (Vec3<int>)unit->position;
			// Quick check it's to the right side of us and in range
			// FIXME: Should we check more thoroughly to save CPU time (probably)?
			if ((vec.x > 0 && unit->facing.x < 0) || (vec.y > 0 && unit->facing.y < 0) ||
			    (vec.x < 0 && unit->facing.x > 0) || (vec.y < 0 && unit->facing.y > 0) ||
			    (vec.x * vec.x + vec.y * vec.y + vec.z * vec.z > 400))
			{
				continue;
			}
			unitsToUpdate.insert(unit);
			break;
		}
	}
	for (auto &unit : unitsToUpdate)
	{
		unit->refreshUnitVision(state);
	}
	tilesChangedForVision.clear();
}

bool findLosBlockCenter(TileMap &map, BattleUnitType type,
                        const BattleMapSector::LineOfSightBlock &lb, Vec3<int> center,