There are 20 fields distributed over the full 360 degrees. Not taking the separation between the fields into account that makes 360/20=18 degrees per field. So if you have a reference world position of the board and the reference vector to one of the fields (say World up 0,0,1 corresponds to 20) then for any point you can calculate the angle AND the distance to the center and combine both to get the score. I.e. distance determines whether its 50, 25, single, double or triple and if its either of the “multipliers” the angle determines the field number you need to multiply with (-9…9 degrees → 20, 9…27 degrees → 1, etc.)
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