Routines
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BC6C: Choose Outlaw Body
Used by the routine at HandleWaitingOutlaw.
Chooses which of the two sprite lists for the body of the outlaw to draw. He takes a step every fourth frame while he is moving.
Input
IX The address of the outlaw
Output
DE The address of the sprite list
Take a step every fourth frame while he is moving.
ChooseOutlawBody BC6C LD A,(IX+$01) Fetch the horizontal speed.
BC6F OR (IX+$03) Combine it with the vertical speed.
BC72 JR Z,ChooseOutlawBody_Step Jump if he is not moving.
BC74 LD A,(IX+$0A) Fetch the number of moves left.
BC77 OR (IX+$0B) Combine it with the timer.
BC7A JR Z,ChooseOutlawBody_Step Jump if both are zero.
BC7C LD A,($A216) Fetch the frame counter.
BC7F AND %00000011 Keep a number from 00 to 03.
BC81 JR NZ,ChooseOutlawBody_Step Jump unless it is every fourth frame.
BC83 INC (IX+$0E) Take a step.
Choose the sprite list for the step.
ChooseOutlawBody_Step BC86 LD A,(IX+$0E) Fetch the step.
BC89 AND %00000001 Keep the lowest bit.
BC8B LD DE,$B5AA Point DE at BodyImageNumbers.
BC8E RET Z Return if the step is even.
BC8F LD DE,$B5AD Point DE at BodyImageNumbers_SecondStep.
BC92 RET Return.
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