Method updateFalling

game/state/battle/battlemappart.cpp:1165–1285

}

void BattleMapPart::updateFalling(GameState &state, unsigned int ticks)
{
	auto fallTicksRemaining = ticks;
	auto newPosition = position;
	while (fallTicksRemaining-- > 0)
	{
		fallingSpeed += FALLING_ACCELERATION_MAP_PART;
		newPosition -= Vec3<float>{0.0f, 0.0f, (fallingSpeed / TICK_SCALE)} / VELOCITY_SCALE_BATTLE;
	}

	// Collision with this tile happens when map part moves from this tile to the next
	if (newPosition.z < 0 || floorf(newPosition.z) != floorf(position.z))
	{
		sp<BattleMapPart> rubble;
		// we may kill a unit by applying fall damage, this will trigger a stance change which will
		// remove its tile and shadow objects from the ownedObjects set (invalidating iterators)
		// we work around this by iterating over a set's copy
		auto set = tileObject->getOwningTile()->ownedObjects;
		for (auto &obj : set)
		{
			if (tileObject->getOwningTile()->ownedObjects.find(obj) ==
			    tileObject->getOwningTile()->ownedObjects.end())
			{
				continue;
			}
			switch (obj->getType())
			{
				// If there's a live ground or map mart of our type here - die
				case TileObject::Type::Ground:
				case TileObject::Type::LeftWall:
				case TileObject::Type::RightWall:
				case TileObject::Type::Feature:
				{
					auto mp = std::static_pointer_cast<TileObjectBattleMapPart>(obj)->getOwner();

					// Find if we collide into it
					if (mp->type->type == type->type ||
					    mp->type->type == BattleMapPartType::Type::Ground)
					{
						if (tileObject && mp->isAlive())
						{
							destroyed = true;
						}
					}

					// Find if we deposit rubble into it
					if ((type->type != BattleMapPartType::Type::Ground &&
					     mp->type->type == type->type) ||
					    (type->type == BattleMapPartType::Type::Ground &&
					     mp->type->type == BattleMapPartType::Type::Feature))
					{
						if (mp->isAlive())
						{
							rubble = mp;
						}
					}

					break;