com.bladecoder.engine.ui.PieMenu.java Source code

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Here is the source code for com.bladecoder.engine.ui.PieMenu.java

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/*******************************************************************************
 * Copyright 2014 Rafael Garcia Moreno.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 ******************************************************************************/
package com.bladecoder.engine.ui;

import com.badlogic.gdx.graphics.Color;
import com.badlogic.gdx.graphics.g2d.Batch;
import com.badlogic.gdx.graphics.g2d.BitmapFont;
import com.badlogic.gdx.graphics.g2d.GlyphLayout;
import com.badlogic.gdx.scenes.scene2d.Actor;
import com.badlogic.gdx.scenes.scene2d.actions.Actions;
import com.badlogic.gdx.scenes.scene2d.ui.Button;
import com.badlogic.gdx.scenes.scene2d.utils.ChangeListener;
import com.bladecoder.engine.i18n.I18N;
import com.bladecoder.engine.model.InteractiveActor;
import com.bladecoder.engine.util.DPIUtils;
import com.bladecoder.engine.util.RectangleRenderer;

public class PieMenu extends com.badlogic.gdx.scenes.scene2d.Group {

    private BitmapFont font;

    private Button lookatButton;
    private Button talktoButton;
    private Button pickupButton;

    private float x = 0, y = 0;

    private InteractiveActor iActor = null;

    private final SceneScreen sceneScreen;

    private int viewportWidth, viewportHeight;

    private final GlyphLayout layout = new GlyphLayout();

    private String desc = null;

    public PieMenu(SceneScreen scr) {
        sceneScreen = scr;
        font = scr.getUI().getSkin().getFont("desc");

        lookatButton = new Button(scr.getUI().getSkin(), "pie_lookat");
        addActor(lookatButton);
        lookatButton.addListener(new ChangeListener() {
            @Override
            public void changed(ChangeEvent event, com.badlogic.gdx.scenes.scene2d.Actor actor) {
                if (iActor != null) {
                    sceneScreen.runVerb(iActor, "lookat", null);
                }

                hide();
            }
        });

        talktoButton = new Button(scr.getUI().getSkin(), "pie_talkto");
        addActor(talktoButton);
        talktoButton.addListener(new ChangeListener() {
            @Override
            public void changed(ChangeEvent event, com.badlogic.gdx.scenes.scene2d.Actor actor) {
                if (iActor != null) {
                    sceneScreen.runVerb(iActor, "talkto", null);
                }

                hide();
            }
        });

        pickupButton = new Button(scr.getUI().getSkin(), "pie_pickup");
        addActor(pickupButton);
        pickupButton.addListener(new ChangeListener() {
            @Override
            public void changed(ChangeEvent event, com.badlogic.gdx.scenes.scene2d.Actor actor) {
                if (iActor != null) {
                    sceneScreen.runVerb(iActor, "pickup", null);
                }

                hide();
            }
        });
    }

    @Override
    public void draw(Batch batch, float alpha) {

        super.draw(batch, alpha);

        // DRAW TARGET DESCRIPTION
        String desc = iActor.getDesc();

        if (desc != null) {
            float margin = DPIUtils.UI_SPACE;

            float textX = x - layout.width / 2;
            float textY = y - layout.height - DPIUtils.UI_SPACE;

            if (textX < 0)
                textX = 0;

            RectangleRenderer.draw(batch, textX - margin, textY - layout.height - margin, layout.width + margin * 2,
                    layout.height + margin * 2, Color.BLACK);
            font.draw(batch, layout, textX, textY);
        }
    }

    public void hide() {
        setVisible(false);
        iActor = null;
    }

    public void show(InteractiveActor a, float x, float y) {
        setVisible(true);
        this.x = x;
        this.y = y;
        iActor = a;

        // DRAW TARGET DESCRIPTION
        desc = iActor.getDesc();

        if (desc != null) {

            if (desc.charAt(0) == I18N.PREFIX)
                desc = I18N.getString(desc.substring(1));

            layout.setText(font, desc);
        }

        Actor rightButton;

        if (a.getVerb("talkto") != null) {
            talktoButton.setVisible(true);
            pickupButton.setVisible(false);
            rightButton = talktoButton;
        } else {
            talktoButton.setVisible(false);
            pickupButton.setVisible(true);
            rightButton = pickupButton;
        }

        float margin = DPIUtils.getMarginSize();

        // FITS TO SCREEN
        if (x < lookatButton.getWidth() + margin)
            this.x = lookatButton.getWidth() + margin;
        else if (x > viewportWidth - lookatButton.getWidth() - margin)
            this.x = viewportWidth - lookatButton.getWidth() - margin;

        if (y < margin)
            this.y = margin;
        else if (y > viewportHeight - lookatButton.getHeight() - margin)
            this.y = viewportHeight - lookatButton.getHeight() - margin;

        //lookatButton.setPosition(this.x - lookatButton.getWidth() - margin / 2, this.y + margin);
        lookatButton.setPosition(this.x - lookatButton.getWidth() / 2, this.y - lookatButton.getHeight() / 2);
        lookatButton.addAction(Actions.moveTo(this.x - lookatButton.getWidth() - margin / 2, this.y + margin, .1f));

        //      rightButton.setPosition(this.x + margin / 2, this.y + margin);
        rightButton.setPosition(this.x - lookatButton.getWidth() / 2, this.y - lookatButton.getHeight() / 2);
        rightButton.addAction(Actions.moveTo(this.x + margin / 2, this.y + margin, .1f));

    }

    public void resize(int width, int height) {
        viewportWidth = width;
        viewportHeight = height;

        setBounds(0, 0, width, height);

        float size = DPIUtils.getPrefButtonSize();
        lookatButton.setSize(size, size);
        talktoButton.setSize(size, size);
        pickupButton.setSize(size, size);
    }
}