I'm trying to make it so then when a player presses a specific key, something happens.

 

@Override
public void keyboardEvent(KeyBinding event)

 

I inherited this function from BaseMod but it's never called...

It looks like you forgot the KeyBinding

Try this:

public static KeyBinding Switch = new KeyBinding("Switch", 19);   
public void keyboardEvent(KeyBinding keybinding)
    {
    if(keybinding == Switch)
    {	
//Do stuff here
}

public void load() 
{
            ModLoader.registerKey(this, Switch, false);
    ModLoader.addLocalization("Switch", "Switch");
    ModLoader.setInGameHook(this, true, true);
}

Works. Thank you. Which keycode is for space bar?

Looks like 57(See Attachment)

Thanks