Linedef type 443

Linedef type 443, Call Lua Function, is a type of linedef executor which, when triggered, executes a Lua function, essentially creating a custom linedef executor effect.

Setup

To make a Lua function executable by this linedef executor, it needs to be added to the LinedefExecute hook with the command addHook("LinedefExecute", function, "NAME"). function is the name of the function to be executed. It must take two arguments: the control linedef and the Object that triggered the linedef executor. NAME is the name by which the linedef can then reference the function. This name should be written in the control linedef's front upper texture field. If the name is longer than eight characters, it continues in the front middle texture and front lower texture fields. The tag, texture offsets, and back side texture names are irrelevant to this linedef executor, and may be used by the Lua function for whatever purpose is needed.

Sample

Example file: ex_ld443_callluafunction.wad (MAP01) 

• The function in this example, verticalBoost, sets the vertical momentum of the triggering Object to the length of the control linedef, divided by 4.
• The function is referenced by the name EXAMPLE in the control linedef's front upper texture.

How to use

You may load this file into your favorite map editor, such as Zone Builder. Select MAP01 as the map to load. You may also load this file in the game: Save ex_ld443_callluafunction.wad into the addons folder of your SRB2 directory. Start SRB2, go to the Addons menu, and then select ex_ld443_callluafunction.wad. Start the game in Single Player mode. Press the Console button (~), and type in the command MAP MAP01 to access the example map. When you load this file in the game, it replaces Greenflower Zone Act 1.

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