Fix TypeError with mystery points
Fix TypeError with mystery points

Was subtracting from a variable that could be None.

RobTwoThree/Monocle,DavisPoGo/Monocle,RobTwoThree/Monocle,RobTwoThree/Monocle,RobTwoThree/Monocle,tallypokemap/Monocle,tallypokemap/Monocle,sebast1219/Monocle,tallypokemap/Monocle,DavisPoGo/Monocle,evenly-epic-mule/Monocle,evenly-epic-mule/Monocle,ZeChrales/Monocle,evenly-epic-mule/Monocle,ZeChrales/Monocle,ZeChrales/Monocle,sebast1219/Monocle,sebast1219/Monocle,DavisPoGo/Monocle