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Supported In:
C D/S/W W-CD
? ? ?

The scripting command If has the opcode (0x08/0x09/0x0A).

Arguments

  • byte - comparison type
  • Additional arguments by type
  • Line Number (byte) - destination line number if comparison is true


Description

Performs a comparison depending on type and additional bytes. Jumps to the given line number if comparison is true, else continues to the next line. Most comparisons are performed on the currently selected character, as by WhoWill or SelRndChar for example.

  • 0x08 - true if actual value <= comparison value
  • 0x09 - true if actual value == comparison value
  • 0x0A - true if actual value > comparison value

Notes

The "If" structure is very complex, with many, many comparison types. It always takes at least 3 arguments: the comparison type; at least one argument (though may be more, depending on type); and a destination number. This will need a lot of further investigation.

08 09 00 is often used as always true: every character will have at least 0 spell points. (if sp >= 0, do...)

TypeArgumentsDescription
0x00 --- UNUSED: This does nothing. Do Not use!
0x01 --- UNUSED: This does nothing. Do Not use!
0x02 --- UNUSED: This does nothing. Do Not use!
0x03 Sex TODO: Confirm 0=male, 1=female
0x04 Race 0=Human, 1=Elf, 2=Dwarf, 3=Gnome, 4=H-Orc
0x05 Class 0=Knight, 1=Paladin, 2=Archer, 3=Cleric, 4=Sorcerer, 5=Robber, 6=Ninja, 7=Barbarian, 8=Druid, 9=Ranger
0x06 --- UNUSED: This does nothing. Do Not use!
0x07 --- UNUSED: This does nothing. Do Not use!
0x08 HP (1) Current Health Points. TODO: Why is this only 1 byte comparison? It can go higher than 256.
0x09 SP (1) Current Spell Points.
0x0A AC (1) Current Armor Class, including bonuses. TODO: Why is this only 1 byte comparison? It can go higher than 256.
0x0B LevelTmp (1) Level bonus (extra beyond base)
0x0C Age (1) Current Age, including unnatural aging. Capped at 254.
0x0D Skill (1) Has the skill. 0=Theivary, 1=ArmsMaster, 2=Astrologer, 3=BodyBuilder, 4=Cartographer, 5=Crusader, 6=DirectionSense, 7=Linguist, 8=Merchant, 9=Mountaineer, 10=Navigator, 11=PathFinder, 12=PrayerMaster, 13=Prestidigitator, 14=Swimmer, 15=Tracker, 16=SpotSecretDoors, 17=DangerSense
0x0E --- UNUSED: This does nothing. Do Not use!
0x0F Award Checks if you have the given award number. TODO: Seems a little more complex than just a straight lookup.
0x10 Exp (4) Current Experience (max 4,294,967,296)
0x11 PartyPoison (1) Checks party magical resistance to poison, as set by Prot. from Elements spell.
0x12 Condition (1) Is under the given condition. 0=Cursed, 1=HeartBroken, 2=Weak, 3=Poisoned, 4=Diseased, 5=Insane, 6=InLove, 7=Drunk
0x13 CanCast (1) Checks if the character class is capable of casting the given spell number, and then if the character has actually purchased that spell. See AllSpells for a list of spells, who can cast them, and their corresponding numbers
0x14 GameFlag (1) Checks if the given game flag is set. See Game_bit.
0x15 Item (1) Searches inventories for given item number. Returns true if found.
0x16 --- UNUSED: This does nothing. Do Not use!
0x17 --- UNUSED: This does nothing. Do Not use!
0x18 --- UNUSED: This does nothing. Do Not use!
0x19 Minutes (2) Minutes since midnight. There is no "hour" variable (max 1,440)
0x1A --- UNUSED: This does nothing. Do Not use!
0x1B --- UNUSED: This does nothing. Do Not use!
0x1C --- UNUSED: This does nothing. Do Not use!
0x1D --- UNUSED: This does nothing. Do Not use!
0x1E --- UNUSED: This does nothing. Do Not use!
0x1F --- UNUSED: This does nothing. Do Not use!
0x20 --- UNUSED: This does nothing. Do Not use!
0x21 --- UNUSED: This does nothing. Do Not use!
0x22 Gold (4) Current party gold (max 4,294,967,296)
0x23 Gems (2) Current party gems (max 65,536)
0x24 --- UNUSED: This does nothing. Do Not use!
0x25 MightTmp Might Bonus (extra beyond base)
0x26 IntTmp Intelligence Bonus (extra beyond base)
0x27 PersTmp Personality Bonus (extra beyond base)
0x28 EndTmp Endurance Bonus (extra beyond base)
0x29 SpdTmp Speed Bonus (extra beyond base)
0x2A AccTmp Accuracy Bonus (extra beyond base)
0x2B LuckTmp Luck Bonus (extra beyond base)
0x2C YesNo (1) If YesNo flag is 0, then it displays a Yes/No prompt. Clicking Yes makes the comparison true. If flag is 1, no prompt is displayed, but execution is paused until a key is pressed and comparison is automatically true.
0x2D MightBase Might Base (before bonus)
0x2E IntBase Intelligence Base (before bonus)
0x2F PersBase Personality Base (before bonus)
0x30 EndBase Endurance Base (before bonus)
0x31 SpdBase Speed Bonus Base (before bonus)
0x32 AccBase Accuracy Base (before bonus)
0x33 LuckBase Luck Base (before bonus)
0x34 FireBase Fire Resistance Base (before bonus)
0x35 ElecBase Electricity Resistance Base (before bonus)
0x36 ColdBase Cold Resistance Base (before bonus)
0x37 PsnBase Poison Resistance Base (before bonus)
0x38 NrgBase Energy Resistance Base (before bonus)
0x39 MgcBase Magic Resistance Base (before bonus)
0x3A FireTmp Fire Resistance Bonus (extra beyond base)
0x3B ElecTmp Electricity Resistance Bonus (extra beyond base)
0x3C ColdTmp Cold Resistance Bonus (extra beyond base)
0x3D PsnTmp Poison Resistance Bonus (extra beyond base)
0x3E NrgTmp Energy Resistance Bonus (extra beyond base)
0x3F MgcTmp Magic Resistance Bonus (extra beyond base)
0x40 LevelBase Base level (before bonuses)
0x41 Food Party Food Amount
0x42 --- UNUSED: This does nothing. Do Not use!
0x43 --- UNUSED: This does nothing. Do Not use!
0x44 --- UNUSED: This does nothing. Do Not use!
0x45 Levitate Comparison against whether levitate spell is active or not.
0x46 Light Comparison against the amount of light.
0x47 PartyFire (1) Checks party magical resistance to fire, as set by Prot. from Elements spell.
0x48 PartyElec (1) Checks party magical resistance to electricity, as set by Prot. from Elements spell.
0x49 PartyCold (1) Checks party magical resistance to cold, as set by Prot. from Elements spell.
0x4A --- UNUSED: This does nothing. Do Not use!
0x4B --- UNUSED: This does nothing. Do Not use!
0x4C Day Day of the current year (100 days per year)
0x4D ACTmp Armor Class Bonuses (extra beyond base)
0x4E HPFull Boolean compare: 1 if current HP is greater than or equal to max HP, 0 if below
0x4F WizardEye Comparison against whether WizardEye spell is active or not.
0x50 --- UNUSED: This does nothing. Do Not use!
0x51 SPFull Boolean compare: 1 if current SP is greater than or equal to max SP, 0 if below
0x52 --- UNUSED: This does nothing. Do Not use!
0x53 --- UNUSED: This does nothing. Do Not use!
0x54 UNK Comparison against a currently unknown byte
0x55 Year Current game year since start.
0x56 Might Total Might (base plus bonus)
0x57 Int Total Intelligence (base plus bonus)
0x58 Pers Total Personality (base plus bonus)
0x59 End Total Endurance (base plus bonus)
0x5A Spd Total Speed Bonus (base plus bonus)
0x5B Acc Total Accuracy (base plus bonus)
0x5C Luck Total Luck (base plus bonus)
0x5D Week Current week of current year (day of year / 10)
0x5E WalkOnWater Comparison against whether Walk On Water spell is active or not.
0x5F --- UNUSED: This does nothing. Do Not use!
0x60 --- UNUSED: This does nothing. Do Not use!
0x61 --- UNUSED: This does nothing. Do Not use!
0x62 --- UNUSED: This does nothing. Do Not use!
0x63 PartySkill Boolean compare: 5=All Members have Crusader, 9=At least 2 have Mountaineer, 11=At least 2 have PathFinder, 14=All members have Swimmer. All others return true if at least one member of the party has the selected skill.
0x64 --- UNUSED: This does nothing. Do Not use!
0x65 --- UNUSED: This does nothing. Do Not use!
0x66 Thievery Compares to the characters thievery skill
0x67 WorldFlag (1) Checks if the given world flag is set. See World_bit.
0x68 QuestFlag (1) Checks if the given quest flag is set. See Quest_bit.
0x69 MGCredit Test number of Megacredits in the party. Only used by King's Engineer in Castle Burlock
0x6A --- UNUSED: This does nothing. Do Not use!
0x6B InParty Unknown use. Appears to be incomplete. Uses the currently selected character, but does no sanity checks against it. Also references code blocks as data blocks. Probably not safe to use. DO NOT USE!

Additional notes: In theory the UNUSED codes can be implemented in future ports. Discussion may be required.

TODO: 0x54 reference two bytes of currently unknown use.

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