ref: 148e79546d2c3deb025390ad168b5c90dc118530
dir: /engine/routines/checknickerrors.asm/
CheckNickErrors:: ; 669f ; error-check monster nick before use ; must be a peace offering to gamesharkers ; input: de = nick location push bc push de ld b, PKMN_NAME_LENGTH .checkchar ; end of nick? ld a, [de] cp "@" ; terminator jr z, .end ; check if this char is a text command ld hl, .textcommands dec hl .loop ; next entry inc hl ; reached end of commands table? ld a, [hl] cp -1 jr z, .done ; is the current char between this value (inclusive)... ld a, [de] cp [hl] inc hl jr c, .loop ; ...and this one? cp [hl] jr nc, .loop ; replace it with a "?" ld a, "?" ld [de], a jr .loop .done ; next char inc de ; reached end of nick without finding a terminator? dec b jr nz, .checkchar ; change nick to "?@" pop de push de ld a, "?" ld [de], a inc de ld a, "@" ld [de], a .end ; if the nick has any errors at this point it's out of our hands pop de pop bc ret .textcommands ; 66cf ; table defining which characters are actually text commands ; format: ; ≥ < db "<START>", TX_BOX + 1 db "<PLAY_G>", $18 + 1 db $1d, "%" + 1 db $35, "<GREEN>" + 1 db "<ENEMY>", "<ENEMY>" + 1 db "<MOM>", "<TM>" + 1 db "<ROCKET>", "┘" + 1 db -1 ; end