Routines
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7974: Make a female character stand on a chair or start jumping
The address of this uninterruptible subcommand routine is placed into bytes 0x11 and 0x12 of a female character's buffer by the routine at 79AE when there's a mouse in the vicinity. It makes the female character either stand on a chair (if there's one beside her) or start jumping up and down.
Input
H Character number (0xB7-0xBD, 0xCC or 0xD1)
7974 LD L,$11 Replace the address of this routine in bytes 0x11 and 0x12 of the character's buffer with that of 7966
7976 LD (HL),$66
7978 CALL $61B4 Update the SRB for the character's current animatory state and location
797B LD L,$14 Store the character's current animatory state in byte 0x14 of her buffer, so it can be restored when she's finished jumping
797D LD (HL),A
797E INC L Initialise byte 0x15 to 0 on the assumption that there is no chair to stand on
797F LD (HL),$00
7981 DEC D Jump up
7982 PUSH DE
7983 LD L,$00 Pretend the character is facing left by resetting bit 7 of her animatory state (to make the chair check work)
7985 RES 7,(HL)
7987 CALL $65D4 Check whether this character is beside a chair
798A POP DE
798B LD L,$15
798D AND A Is this character standing beside a chair?
798E JR NZ,$7991 Jump if not
7990 INC (HL) Set byte 0x15 to 1 to indicate that the character is standing on a chair
7991 DEC L Collect the character's original animatory state from byte 0x14
7992 LD A,(HL)
7993 AND $F8 A=character's base animatory state
7995 JP $6130 Update the character's animatory state and location and update the SRB
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