CameraTrackWindow.java

package org.multiverseking.game.gui.control;

import com.jme3.math.Vector2f;
import com.jme3.math.Vector3f;
import com.jme3.renderer.Camera;
import org.hexgridapi.core.coordinate.HexCoordinate;
import tonegod.gui.controls.menuing.Menu;
import tonegod.gui.core.Element;
import tonegod.gui.core.ElementManager;

/**
 *
 * @author roah
 */
public abstract class CameraTrackWindow {

    protected final ElementManager screen;
    protected final Camera camera;
    protected Vector2f offset;
    protected HexCoordinate inspectedPosition;
    protected int inspectedSpatialHeight = Integer.MIN_VALUE;
    protected Element screenElement;

    public CameraTrackWindow(ElementManager screen, Camera camera) {
        this(screen, camera, new Vector2f());
    }

    public CameraTrackWindow(ElementManager screen, Camera camera, Vector2f offset) {
        this.screen = screen;
        this.camera = camera;
        this.offset = offset;
    }

    public void update(float tpf) {
        if (screen.getElementById(screenElement.getUID()) != null && screenElement.getIsVisible()) {
            Vector3f value = camera.getScreenCoordinates(inspectedSpatialHeight == Integer.MIN_VALUE ? inspectedPosition.toWorldPosition(): inspectedPosition.toWorldPosition(inspectedSpatialHeight));
            if (value.x > 0 && value.x < screen.getWidth() * 0.9f
                    && value.y > 0 && value.y < screen.getHeight() * 0.9f) {
                screenElement.setPosition(new Vector2f(value.x + offset.x, value.y + offset.y));
            } else {
                hide();
            }
        }
    }

    public void show(HexCoordinate pos) {
        if (screen.getElementById(screenElement.getUID()) == null) {
            screen.addElement(screenElement);
        }
        inspectedPosition = pos;
        Vector3f value = camera.getScreenCoordinates(inspectedSpatialHeight == Integer.MIN_VALUE ? pos.toWorldPosition(): pos.toWorldPosition(inspectedSpatialHeight));
        if (screenElement instanceof Menu) {
            ((Menu) screenElement).showMenu(null, value.x, value.y);
        } else {
            screenElement.setPosition(value.x, value.y);
            screenElement.show();
        }
    }

    public void show(HexCoordinate pos, int height) {
        inspectedSpatialHeight = height;
        show(pos);
    }

    public boolean isVisible() {
        return screenElement.getIsVisible();
    }

    public void hide() {
        if (screenElement instanceof Menu) {
            ((Menu) screenElement).hideMenu();
        } else {
            screenElement.hide();
        }
    }

    public void removeFromScreen() {
        if (screenElement.getElementParent() != null) {
            screenElement.getElementParent().removeChild(screenElement);
        } else {
            screen.removeElement(screenElement);
        }
    }

    public String getUID() {
        return screenElement.getUID();
    }

    public Element getScreenElement() {
        return screenElement;
    }

    public HexCoordinate getInspectedSpatialPosition() {
        return inspectedPosition;
    }
}