I want to detect when the player presses the arrow keys so that I can rotate a entity on my custom screen. I know how to rotate the entity but dont know how to detect when the player is pressing one of the keys.

    @SubscribeEvent
    public void onKeyInputEvent(InputEvent.Key event) {
        if (Minecraft.getInstance().options.keyForward.isDown()) {
            // ...
        }
    }

or

if (Minecraft.getInstance().player.input.up) {
    // ...
}

 

Edited July 26, 20223 yr by Zergatul

Screen#keyPressed is the way to go in a custom Screen, take a look at this for the parameters

I looked at the parameters for keyPressed and got the keyCode but i dont know what to put for the other 2.

the second parameter is the "scanCode" and the third parameter is the "modifiers"

ARG 1 keyCode
ARG 2 scanCode
ARG 3 modifiers

I know but I dont know what that means

what is a scan code? what are the modifiers? there are both integers but other than that idk. where do i get the values for them from.

 

Edited July 26, 20223 yr by awesomedude3595

You don't call the method yourself. You override the method in your Screen to trap the keys you want to process.

See for example ConfirmScreen.keyPressed() or one of the other vanilla screens.

yes i know but it ask for 3 parameters i only know what to enter for the first one.

11 minutes ago, awesomedude3595 said:

what is a scan code?

https://github.com/MinecraftForge/MinecraftForge/blob/094200e687135df77096341e3d56860d96d08384/src/main/java/net/minecraftforge/client/event/ScreenEvent.java#L726-L734

11 minutes ago, awesomedude3595 said:

what are the modifiers?

https://github.com/MinecraftForge/MinecraftForge/blob/094200e687135df77096341e3d56860d96d08384/src/main/java/net/minecraftforge/client/event/ScreenEvent.java#L740-L750