Game Development Reference
In-Depth Information
The scene graph starts with an empty
Stage
. Then, the first child actor added to the
stage is a
Stack
widget. The
Stack
widget allows you to add actors that can overlay
other actors. We will make use of this ability to create several layers. Each layer uses
a
Table
widget as its parent actor. Using stacked tables enables us to lay out actors in
an easy and logical way.
In the first step, we will add the basic structure of our stacked layers and some
skeleton methods, which we are going to fill in the subsequent steps.
Add the following import lines to
MenuScreen
:
import com.badlogic.gdx.graphics.Color;
import com.badlogic.gdx.graphics.g2d.TextureAtlas;
import com.badlogic.gdx.scenes.scene2d.Stage;
import com.badlogic.gdx.scenes.scene2d.Actor;
import com.badlogic.gdx.scenes.scene2d.ui.Button;
import com.badlogic.gdx.scenes.scene2d.ui.CheckBox;
import com.badlogic.gdx.scenes.scene2d.ui.Image;
import com.badlogic.gdx.scenes.scene2d.ui.Label;
import com.badlogic.gdx.scenes.scene2d.ui.Label.LabelStyle;
import com.badlogic.gdx.scenes.scene2d.ui.SelectBox;
import com.badlogic.gdx.scenes.scene2d.ui.Skin;
import com.badlogic.gdx.scenes.scene2d.ui.Slider;
import com.badlogic.gdx.scenes.scene2d.ui.Stack;
import com.badlogic.gdx.scenes.scene2d.ui.Table;
import com.badlogic.gdx.scenes.scene2d.ui.TextButton;
import com.badlogic.gdx.scenes.scene2d.ui.Window;
import com.badlogic.gdx.scenes.scene2d.utils.ChangeListener;
import com.packtpub.libgdx.canyonbunny.game.Assets;
import com.packtpub.libgdx.canyonbunny.util.Constants;
After this, add the following lines of code to the same class:
private Stage stage;
private Skin skinCanyonBunny;
// menu
private Image imgBackground;
private Image imgLogo;
private Image imgInfo;
private Image imgCoins;
private Image imgBunny;
private Button btnMenuPlay;
private Button btnMenuOptions;
// options
