Wiley-World.of.Warcraft.Programming.A.Guide.and.Reference.for.Creating.WoW.Addons

CHAPTER17Creating Slash CommandsWorld of Warcraft players interact daily with slash commands. Whether it’s/ignore Ikeelyou or a hasty /gquit after ninja looting Kael’thas on yourguild’s first takedown, you’re using slash commands.As an addon author, you’ll often find it easier or just plain useful to haveslash commands to either spur your addon to action or to enable configuration.Generally speaking, it’s much quicker to write out a quick slash commandsystem than to have a fully functioning graphical configuration screen.Creating Basic Slash CommandsWoW provides a fairly straightforward way to implement slash commands.They require two basic components: a set of global variables for the commandsand a handler function in a global table. Here is a quick example:SLASH_FANCYPRINT1 = “/fancyprint“SlashCmdList[“FANCYPRINT“] = function(msg)print(“|cff11ff11“ .. Printed:|r “ .. msg)endOnce you’ve run that code, type the following in the chat frame’s edit box:/fancyprint This is my first slash command!You should see a message printed to the chat frame that says, ‘‘This is myfirst slash command!’’, after a green heading that says ‘‘Printed’’.Now take a look at the process that made this possible. WoW stores all theslash command handlers in a table called SlashCmdList. The table is indexed337