Scripting(Builder)

CoffeeMUD
Administrator                                                  Builder                                                              Player

=CoffeeMUD Builder Information=
Basics	Praetor     Player Support     Commands     Zapper Masks	Advanced	Races     Classes     Abilities     Socials     Scripting
Building	Behaviors     Properties     Areas     Rooms     Exits     Items     Mobs	Systems	Achievements     Crafting     Help Info     Ships     Planes of Existence     Quests     Triumphs

CoffeeMUD has enormous flexibility outside of pre-built behaviors and properties with the Scriptable and ScriptableEverymob behaviors.

Official Scripting Docs

• Official Scripting Guide

Articles on General Concepts

• Scripting Mobs - Making your Mobs come alive

Scripting Do's and Dont's

• Do not overtax your scripts for performing actions. A maximum of 25 actions may be taken by a given script per tick. This limit is there to prevent bad scripts from destroying the mud. If more than 25 actions are attempted and error will be thrown similar to:
  • Scripting Error: ...script/UNK/SYS/Attempt to que more than 25 events.
  • To fix a script taking too many actions, review the number of events the script is attempting to handle for a given item/mob/room, and see if it is possible that it is generating many of those message in rapid succession.
• The death_prog works before the moment of death of a mob, enabling a builder to take a variety of actions, from emotes of the dying mob to protecting the mob from death. As such, this prog needs to be used with care.
  • Transferring a character away from a mob using a death_prog will result in the character being penalized for fleeing a fight.
• MPECHOAT and MPECHOAROUND are good ways to script things to prevent nuissance messages to other players (for example, a quest giver that talks to each person entering the room).
• VARIES is a useful command to provide alternative actions based on a criteria.
  • The way it works is you do something like <MASK22 -RACE +DWARF>Stuff for Dwarves</MASK22> The 22 part can be anything, so long as the tag starts with MASK and you use something unique. Important though, you need to use html rules for any < or > characters .. so use & l t ; and & g t ; (no spaces) inside the mask itself.'
• MPSETINTERNAL should be placed in a once_prog. Any mpsetinternal, or any commands, outside of a trigger block are just going to cause problems.
• It is not good to combine exit_prog and entry_prog on scripts that affect a GenSailingShip, since the ship generates both an EXIT and an ENTRY message on every room they leave/enter.
• if has($n red sword) - will fail if there is also a red sword in the room. To properly check if a player has a red sword, use if wornon($n inventory 'a red sword') to make it work.

Notes

.