Solved How Do You Make a Simple Lua Mod With a Keybinding?

Hi everyone!

I'm trying to create a simple Lua mod for BeamNG.drive that adds a custom keybinding. When you press the key, I want it to trigger a Lua function—for example, spawning a vehicle above the player.

I already have a script and a FallingVehicle.lua file, but I'm not sure how to correctly set up the extensions.lua file and the input_actions.json for the keybinding to work in-game.

Could anyone explain (or show an example of) how to:

• Create a basic extensions.lua that links to your custom script (at least I think that's what it does)
  
  
• Add a keybinding that runs your function
  
  
• Register the function in a way BeamNG will recognize it

Any help would be awesome! Thanks!

 

I don't have a complete example, but adding a custom keybinding seems to be as simple as adding to your mod a file with a path like timo\lua\ge\extensions\core\input\actions\more_camera.json (where "timo" is the mod root folder and "more_camera" can be any name) with contents:

Code:

{
"morecam_move_forward_backward":{"cat":"camera",  "order": 37, "ctx": "tlua", "onChange":"if core_camera then core_camera.yAxisAbs(100*VALUE) end", "isCentered": true, "title": "Move camera (or seat) ahead / back",                "desc": "Moves the camera or adjusts the driver seat forwards and backwards" },
"morecam_move_left_right"      :{"cat":"camera",  "order": 38, "ctx": "tlua", "onChange":"if core_camera then core_camera.moveLeftRight(0.5*VALUE) end",       "isCentered": true, "title": "Move camera left / right (or tilt seat up / down)", "desc": "Moves the camera to the left or right, or tilts the driver seat up and down" },
"morecam_move_up_down"         :{"cat":"camera",  "order": 39, "ctx": "tlua", "onChange":"if core_camera then core_camera.movedown(VALUE < 0 and -0.5*VALUE or 0) core_camera.moveup(VALUE > 0 and 0.5*VALUE or 0) end", "isCentered": true, "title": "Move camera (or seat) up / down", "desc": "Moves the camera or adjusts the driver seat up and down" }
}

Then in my AppData\Local\BeamNG.drive\0.35\settings\inputmaps\mouse.diff I have these bindings:

Code:

    {
      "action":"morecam_move_forward_backward",
      "control":"zaxis",
      "filterType":1
    },
    {
      "action":"morecam_move_left_right",
      "control":"xaxis",
      "deadzoneResting":0.95,
      "linearity":5
    },
    {
      "action":"morecam_move_up_down",
      "control":"yaxis",
      "deadzoneResting":0.95,
      "isInverted":true,
      "linearity":5
    },

BTW, what all this does is it allows moving the camera in free mode forward/backward with the scroll wheel, as well as moving it horizontally and vertically by moving the mouse pointer to one of the edges of the screen.