Routines
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C582: Generate Random Number
Used by the routines at Event_Pirate, Event_WaterSnake, Event_Spider and Action_Shooting.
Input
A Maximum value of generated number
GenerateRandomNumber C582 PUSH BC Stash BC on the stack.
C583 LD C,A Store the maximum number in C.
C584 CALL FetchFrames Call FetchFrames.
C587 LD B,A Use the frames number as a loop counter in B.
C588 LD A,C Restore the maximum number value back to A.
GenerateRandomNumber_Loop C589 DEC A Decrease the maximum number value by one.
C58A JR NZ,GenerateRandomNumber_Next Jump to GenerateRandomNumber_Next if the maximum number value is not equal to zero.
C58C LD A,C Restore the maximum number value back to A.
GenerateRandomNumber_Next C58D DJNZ GenerateRandomNumber_Loop Decrease the loop counter by one and loop back to GenerateRandomNumber_Loop until the loop counter is zero.
C58F DEC A Decrease the maximum number value by one.
C590 POP BC Restore BC from the stack.
C591 RET Return.
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