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Macro For fcw32.mac: inmaptest

DaltonSpenceDaltonSpence Mapmaker
in Macros and XPs

I would like to suggest that the following macro be included in the next version of the official macro file. As I mentioned in my TIP: Determining Map Width in Macros discussion you can get the effective boundries of a map by getting the extents of the BACKGROUND sheet. The following macro tests a point to determine if it is inside these boundries.

MACRO inmaptest IFDEF mapxyl chkInMap GETSHEETL mapxyl;BACKGROUND GETX mapxl mapxyl GETY mapyl mapxyl GETSHEETH mapxyh;BACKGROUND GETX mapxh mapxyh GETY mapyh mapxyh :chkInMap GETX px p GETY py p GN isInMap 0 IFN px-mapxl notInMap IFN py-mapyl notInMap IFP px-mapxh notInMap IFP py-mapyh notInMap GN isInMap 1 :notInMap ENDM

Like the very useful ontest macro the point tested is in the variable “p”. This would most effectively be used to check the validity of macro generated points.

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