Routines
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31969: Make a character walk up and down a few times or until a certain time
Used by command lists 18, 42 and 44 to make a character walk about a fixed location until a specified time, or until a certain number of walkabouts have been performed.
Input
H Character number (183-209)
31969 LD L,6 Collect the event ID (always 0, denoting the end of the lesson) and the maximum walkabout count from the command list and copy them into bytes 6 and 7 of the character's buffer
31971 CALL 25188
31974 LD L,7 Decrease the walkabout counter at byte 7 of the character's buffer
31976 DEC (HL)
31977 JR NZ,31993 If the character has not yet performed the maximum number of walkabouts, check whether the specified time has arrived
31979 INC (HL) Set the walkabout counter back to 1 to ensure that we return to this execution path next time (to check whether the character has returned to the walkabout origin)
31980 LD L,5 Byte 5 holds the x-coordinate of the walkabout origin
31982 CALL 31924 Reset the carry flag if the character is at the walkabout origin
31985 JP NC,25484 Move to the next command in the command list if the specified time has arrived or the character has completed all his walkabouts
31988 CALL 25503 Otherwise send the character off to another walkabout destination via the routine at 25581, and return to the instruction at 31991 (below) when done
31991 JR 31974
31993 CALL 31915 Reset the carry flag if the specified time has arrived and the character is at the walkabout origin
31996 JR 31985
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