Rebinding up and down keys

grizeldi · January 8, 2015, 12:27pm

I want to rebind up and down fly keys from q and z to space for up and shift for down. The problem is that I don’t know what is the mapping name for up and for down.

To delete the input I would use:
inputManager.deleteMapping(""/Mapping name goes in there/);

But how to add new binding then? That’s also a thing I would be pleased if someone helped me with.

grizeldi · February 3, 2015, 12:36pm

Now after a bit of thinking, I figured out that it would be best to just clear all keys and try implementing flying myself… Although I still think that it would be the best just to rebind those keys if that is even possible.

nehon · February 3, 2015, 12:42pm

You can add a new mapping though

inputManager.deleteMapping("blabla");
inputManager.addMapping("blabla", new KeyTrigger(KeyInput.KEY_SPACE);

this rebinds the “blabla” mapping to the space key

grizeldi · February 3, 2015, 12:49pm

Yes, but I don’t know the default binding names…

nehon · February 3, 2015, 1:24pm

And that, my friend, is the beauty of open source

github.com

jMonkeyEngine/jmonkeyengine/blob/master/jme3-core/src/main/java/com/jme3/input/FlyByCamera.java#L210


public void setEnabled(boolean enable){
    if (enabled && !enable){
        if (inputManager!= null && (!dragToRotate || (dragToRotate && canRotate))){
            inputManager.setCursorVisible(true);
        }
    }
    enabled = enable;
}

/**
 * Test whether this controller is enabled.
 *
 * @return true if enabled, otherwise false
 * @see #setEnabled(boolean)
 */
public boolean isEnabled(){
    return enabled;
}

/**
 * Test whether drag-to-rotate mode is enabled.

github.com

jMonkeyEngine/jmonkeyengine/blob/master/jme3-core/src/main/java/com/jme3/input/CameraInput.java#L40


* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.jme3.input;

/**
* This class defines all the constants used in camera handlers for registration
* with the inputManager
*
* @author Nehon
*/
public class CameraInput {

   //ChaseCamera constants
   /**
    * Chase camera mapping for moving down. Default assigned to
    * MouseInput.AXIS_Y direction depending on the invertYaxis configuration
    */
   public final static String CHASECAM_DOWN = "ChaseCamDown";
   /**
    * Chase camera mapping for moving up. Default assigned to MouseInput.AXIS_Y
    * direction depending on the invertYaxis configuration

david_bernard_31 · February 3, 2015, 1:31pm

from my jme3_ext (lib available on github, bintray)

public class SetupHelpers {
    static public void disableDefaults(SimpleApplication app) {
        app.enqueue(() -> {
            AppStateManager stateManager = app.getStateManager();
            stateManager.detach(stateManager.getState(FlyCamAppState.class));
            stateManager.detach(stateManager.getState(StatsAppState.class));
            stateManager.detach(stateManager.getState(DebugKeysAppState.class));
            app.getInputManager().clearMappings();
            return true;
        });
    }

grizeldi · February 3, 2015, 2:06pm

Thans guys!! That is excactly what I wanted!

grizeldi · February 3, 2015, 2:25pm

After finding this piece fo code in FlyByCamera.java:

    // keyboard only WASD for movement and WZ for rise/lower height
    inputManager.addMapping("FLYCAM_StrafeLeft", new KeyTrigger(KeyInput.KEY_A));
    inputManager.addMapping("FLYCAM_StrafeRight", new KeyTrigger(KeyInput.KEY_D));
    inputManager.addMapping("FLYCAM_Forward", new KeyTrigger(KeyInput.KEY_W));
    inputManager.addMapping("FLYCAM_Backward", new KeyTrigger(KeyInput.KEY_S));
    inputManager.addMapping("FLYCAM_Rise", new KeyTrigger(KeyInput.KEY_Q));
    inputManager.addMapping("FLYCAM_Lower", new KeyTrigger(KeyInput.KEY_Z));

I typed this into my simpleInitApp():

inputManager.deleteMapping("FLYCAM_Rise");
inputManager.deleteMapping("FLYCAM_Lower");

But when I run my app, it makes no effect and I get this in the console:

feb 03, 2015 3:21:20 PM com.jme3.input.InputManager deleteMapping
WARNING: Cannot find mapping to be removed, skipping: FLYCAM_Rise
feb 03, 2015 3:21:20 PM com.jme3.input.InputManager deleteMapping
WARNING: Cannot find mapping to be removed, skipping: FLYCAM_Lower

Help anyone?

david_bernard_31 · February 3, 2015, 2:30pm

it’s because you remove it too early (before the binding is done). it’s why I suggest you to use enqueue, so it’s be done once in next update(tpf).

grizeldi · February 3, 2015, 2:36pm

Thanks, that fixed it. Now it’s working correctly.

nehon · February 3, 2015, 2:37pm

in simpleInit the FlyCamAppState might not be initialised, so the mapping doesn’t exist yet.

you can either remove it once in the simpleUpdate but that’s a bit ugly.
Or create your own appState that does the work :

Create an appState that extends FlyCamAppState

github.com

jMonkeyEngine/jmonkeyengine/blob/master/jme3-core/src/main/java/com/jme3/app/FlyCamAppState.java#L44


import com.jme3.app.state.AbstractAppState;
import com.jme3.app.state.AppStateManager;
import com.jme3.input.FlyByCamera;
/**
 *  Manages a FlyByCamera.  
 *
 *  @author    Paul Speed
 */
public class FlyCamAppState extends AbstractAppState {
    private Application app;
    private FlyByCamera flyCam;
    public FlyCamAppState() {
    }    
    /**
     *  This is called by SimpleApplication during initialize().
     */

just implements the initialize method like this

public void initialize(AppStateManager stateManager, Application app) {
        super.initialize(stateManager, app);
        //remove old mapping , create the new ones
}

then in the simple init do

stateManager.remove(FlyCamAppState.class);
stateManager.attach(new MyFlyCamAppState());

nehon · February 3, 2015, 2:38pm

Or that

grizeldi · February 4, 2015, 12:52pm

Just for anyone who gets this problem again, this is how I did it:

@Override
public void simpleUpdate(float tpf) {
    if (!deleted){
        inputManager.deleteMapping("FLYCAM_Rise");
        inputManager.deleteMapping("FLYCAM_Lower");
        inputManager.addMapping("FLYCAM_Rise", new KeyTrigger(KeyInput.KEY_SPACE));
        inputManager.addMapping("FLYCAM_Lower", new KeyTrigger(KeyInput.KEY_LSHIFT));
        inputManager.addListener(flyCam, "FLYCAM_Rise");
        inputManager.addListener(flyCam, "FLYCAM_Lower");
        deleted = true;
    }
}

Where deleted is an instance variable which is set to false by default.