Class GamepadInputMapper

core/src/com/agateau/ui/GamepadInputMapper.java:29–212

An implementation of InputMapper for gamepads

/** An implementation of InputMapper for gamepads */
public class GamepadInputMapper extends ControllerAdapter implements InputMapper {
    private enum AxisValue {
        LESS,
        ZERO,
        MORE
    }

    private enum KeyState {
        RELEASED,
        PRESSED,
        JUST_PRESSED
    }

    public interface Listener {
        /**
         * Returns true if the event has been handled. In this case the internal state of the input
         * mapper won't be updated
         */
        boolean onButtonPressed(int buttonCode, boolean pressed);
    }

    private Controller mController;

    private final HashMap<VirtualKey, KeyState> mPressedKeys = new HashMap<>();

    private final HashMap<VirtualKey, Integer> mButtonCodes = new HashMap<>();

    // Maps well-known gamepad buttons to our virtual keys
    private final IntMap<VirtualKey> mVirtualKeyForButton = new IntMap<>();

    private Listener mListener;

    GamepadInputMapper(Controller controller) {
        mButtonCodes.put(VirtualKey.TRIGGER, 1);
        mButtonCodes.put(VirtualKey.BACK, 2);
        mButtonCodes.put(VirtualKey.PAUSE, 3);
        setController(controller);
    }

    public Controller getController() {
        return mController;
    }

    void setController(Controller controller) {
        mController = controller;
        if (controller != null) {
            mController.addListener(this);
            updateVirtualKeyForButton();
        }
    }

    public int getButtonCodeForVirtualKey(VirtualKey key) {
        return mButtonCodes.get(key);
    }

    public void setButtonCodeForVirtualKey(VirtualKey key, int code) {
        mButtonCodes.put(key, code);
    }