private void RemoveRoomFromGrid(RoomIndex roomIndex)
{
RoomLayout room = GetRoomByIndex(roomIndex);
// Neighbor on the +x side
if (room.RoomHasPortalOnSide(MathConstants.eSignedDirection.positive_x))
{
RoomLayout posXRoom = GetRoomByIndex(roomIndex.Offset(1, 0, 0));
// No more room on the -x side
posXRoom.RoomFlagPortalOnSide(MathConstants.eSignedDirection.negative_x, false);
}
// Neighbor on the -x side
if (room.RoomHasPortalOnSide(MathConstants.eSignedDirection.negative_x))
{
RoomLayout negXRoom = GetRoomByIndex(roomIndex.Offset(-1, 0, 0));
// No more room on the +x side
negXRoom.RoomFlagPortalOnSide(MathConstants.eSignedDirection.positive_x, false);
}
// Neighbor on the +y side
if (room.RoomHasPortalOnSide(MathConstants.eSignedDirection.positive_y))
{
RoomLayout posYRoom = GetRoomByIndex(roomIndex.Offset(0, 1, 0));
// No more room on the -y side
posYRoom.RoomFlagPortalOnSide(MathConstants.eSignedDirection.negative_y, false);
}
// Neighbor on the -y side
if (room.RoomHasPortalOnSide(MathConstants.eSignedDirection.negative_y))
{
RoomLayout negYRoom = GetRoomByIndex(roomIndex.Offset(0, -1, 0));
// No more room on the +y side
negYRoom.RoomFlagPortalOnSide(MathConstants.eSignedDirection.positive_y, false);
}
// Stomp this room
m_roomGrid[roomIndex.X, roomIndex.Y, roomIndex.Z] = null;
}
private bool CanRemoveRoomFromGrid(RoomIndex roomIndex)
{
RoomLayout room = GetRoomByIndex(roomIndex);
bool canRemoveRoom = true;
// Can't remove this room if it contains stairs
// Or we are neighboring a room that contains stairs
if (!room.RoomHasStairs)
{
RoomKey roomKey = GetRoomKeyForRoomIndex(roomIndex);
// Can't remove the origin room because that's where the player is spawned in a new game
canRemoveRoom = !(roomKey.x == 0 && roomKey.y == 0 && roomKey.z == 0);
if (canRemoveRoom && room.RoomHasPortalOnSide(MathConstants.eSignedDirection.positive_x))
{
canRemoveRoom &= !GetRoomByIndex(roomIndex.Offset(1, 0, 0)).RoomHasStairs;
}
if (canRemoveRoom && room.RoomHasPortalOnSide(MathConstants.eSignedDirection.negative_x))
{
canRemoveRoom &= !GetRoomByIndex(roomIndex.Offset(-1, 0, 0)).RoomHasStairs;
}
if (canRemoveRoom && room.RoomHasPortalOnSide(MathConstants.eSignedDirection.positive_y))
{
canRemoveRoom &= !GetRoomByIndex(roomIndex.Offset(0, 1, 0)).RoomHasStairs;
}
if (canRemoveRoom && room.RoomHasPortalOnSide(MathConstants.eSignedDirection.negative_y))
{
canRemoveRoom &= !GetRoomByIndex(roomIndex.Offset(0, -1, 0)).RoomHasStairs;
}
}
else
{
canRemoveRoom = false;
}
return(canRemoveRoom);
}
private void ComputeRoomConnectivity(UnionFind <RoomIndex> roomUnion)
{
IList <RoomIndex> roomIndices = GetRoomIndexList();
roomUnion = new UnionFind <RoomIndex>();
// Add all of the rooms into the union
foreach (RoomIndex roomIndex in roomIndices)
{
roomUnion.AddElement(roomIndex);
}
// Start connecting to our neighbors
foreach (RoomIndex roomIndex in roomIndices)
{
RoomLayout room = GetRoomByIndex(roomIndex);
// Union with the neighbor on the +x side
if (room.RoomHasPortalOnSide(MathConstants.eSignedDirection.positive_x))
{
roomUnion.Union(roomIndex, roomIndex.Offset(1, 0, 0));
}
// Union with the neighbor on the -x side
if (room.RoomHasPortalOnSide(MathConstants.eSignedDirection.negative_x))
{
roomUnion.Union(roomIndex, roomIndex.Offset(-1, 0, 0));
}
// Union with the neighbor on the +y side
if (room.RoomHasPortalOnSide(MathConstants.eSignedDirection.positive_y))
{
roomUnion.Union(roomIndex, roomIndex.Offset(0, 1, 0));
}
// Union with the neighbor on the -y side
if (room.RoomHasPortalOnSide(MathConstants.eSignedDirection.negative_y))
{
roomUnion.Union(roomIndex, roomIndex.Offset(0, -1, 0));
}
// Union with the neighbor on the +z side
if (room.RoomHasPortalOnSide(MathConstants.eSignedDirection.positive_z))
{
roomUnion.Union(roomIndex, roomIndex.Offset(0, 0, 1));
}
// Union with the neighbor on the -z side
if (room.RoomHasPortalOnSide(MathConstants.eSignedDirection.negative_z))
{
roomUnion.Union(roomIndex, roomIndex.Offset(0, 0, -1));
}
}
// Store the final connectivity id on the room
foreach (RoomIndex roomIndex in roomIndices)
{
RoomLayout room = GetRoomByIndex(roomIndex);
room.connectivity_id = roomUnion.FindRootIndex(roomIndex);
}
}