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I thought I would create a tile map with the new Tile Map Nodes available in iOS 10.I have a tile which if you stand on it, it will crumble. So I though I would place a userData field called timer in the tileGroup definition.func crumbleTile(pos :CGPoint, dt : TimeInterval){ let column = roomMap.tileColumnIndex(fromPosition: pos) let row = roomMap.tileRowIndex(fromPosition: pos) let objectTile = roomMap.tileDefinition(atColumn: column , row: row) if var timer = objectTile?.userData?.value(forKey: "timer") as? Double { print("tile pos \(column),\(row)") print("timer-from tile:\(timer)") timer = timer - dt objectTile?.userData?.setValue(timer, forKey: "timer") print("timer-update tile:\(timer)") if timer < 0.0 { //move to next frame if var crumbleFrame = objectTile?.userData?.value(forKey: "crumble") as? Int { crumbleFrame = crumbleFrame - 1 print("crumble:\(crumbleFrame)") objectTile?.userData?.setValue(crumbleFrame, forKey: "crumble") if crumbleFrame < 1 { //delete tile print("delete tile") removeTile(pos: pos) } else { //move to next frame print("next frame") if crumbleFrame == 2 { print("change frame 2") } if crumbleFrame == 1 { print("change frame 1") } if crumbleFrame == 0 { print("change frame 0") } } } } } } func removeTile(pos : CGPoint) { let column = roomMap.tileColumnIndex(fromPosition: pos) let row = roomMap.tileRowIndex(fromPosition: pos) roomMap.setTileGroup(nil, forColumn: column, row: row) }Instead of each tile having it's own timer setting it appear that I am either adjusting a single timer or simultaneously adjust every timer for that tile.It can be seen in the log file. tile pos 51,11 timer-from tile:-0.104295339999993 timer-update tile:-0.125737270999991 crumble:-1 delete tile 2:crumble floor right tile pos 52,11 timer-from tile:-0.125737270999991 timer-update tile:-0.164520885999991 crumble:-2 delete tiletile at position 52,11 has the same timer value as 52,11 had ?So the question is, is there a way to individually access each tiles userData ?Thanks in Advance.