Routines
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B9CC: Get Guard Speeds
Used by the routine at HandleGuardOrWizard.
Works out the speeds that make a guard follow the wall of the room, using the direction in the two lowest bits of its flags: 00 is west, 01 is north, 02 is east and 03 is south.
Input
IX Address of the guard
Output
H Speed in Y
L Speed in X
GetGuardSpeeds B9CC LD BC,$B9D8 Point BC at the table of routines, GuardDirectionTable.
B9CF LD A,(IX+$0D) Fetch the direction flags of the guard.
B9D2 AND %00000011 Keep the direction.
B9D4 LD L,A Use it as the number of the routine.
B9D5 JP RunGame_JumpToHandler Jump to the routine.
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