Need help with making a "Clear Inventory on join" plugin

[xoft]

The "OnPlayerJoined" is the default name for the hook - it is used when you call the register function like this (old, deprecated but still working way):

cPluginManager.AddHook(cPluginManager.HOOK_PLAYER_JOINED)

This is from the times when plugins could only register a single hook callback.

When multiple callbacks were introduced, the functions were added as the parameter:

local function AnyNameReally(a_Player)
  a_Player:SendMessage("Hello")
end

cPluginManager.AddHook(cPluginManager.HOOK_PLAYER_JOINED, AnyNameReally)

You could even do this:

cPluginManager.AddHook(cPluginManager.HOOK_PLAYER_JOINED, 
  function (a_Player)
    a_Player:SendMessage("Hello")
  end
)