I want to Calculate Tacle Spires by inserting one of four parts of them. The "Level" of a Spire (Amount of different sized layers, usually from 1 to 15). The Height of a Spire. The Basesize (length of the lowest/biggest layer). And the Amount of Blocks needed to create it. For now, I can calculate everything using the Level and the Basesize. But now I fail at using the Height. Y = ((X+1)/2)*X This is the formula for Height, where is Y is Height and X is Level. But now I need to get the Level using the Height. You can control it with this list: Level = Height 1 = 1 2 = 3 3 = 6 4 = 10 5 = 15 6 = 21 and so on.