Android Open Source - BobEngine Start Room

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License

The source code is released under:
GNU Lesser General Public License
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Java Source Code

package com.bobbyloujo.jumpybug;
// ww w  . jav a 2 s .c om
import bobby.engine.bobengine.BobView;
import bobby.engine.bobengine.GameObject;
import bobby.engine.bobengine.Room;

/**
 * Created by Ben on 1/6/2015.
 */
public class StartRoom extends Room {

    // Objects
    private GameObject title;           // The title graphic
    private GameObject playButton;      // The Play button
    private Background bg1;             // Background panel 1
    private Background bg2;             // Background panel 2

    public StartRoom(BobView container) {
        super(container);

        // Initialize objects
        /**
         * Game object initialization requires a unique ID number and the room
         * that the object is placed in. The easiest way to ensure unique ID numbers is
         * by using the nextInstance() function.
         *
         * If you don't use nextInstance(),
         * you must use setNumObjects(number) to be greater than the max number of
         * objects in this room and equal to or greater than the highest object
         * ID number.
         */
        title = new GameObject(nextInstance(), this);
        playButton = new GameObject(nextInstance(), this);
        bg1 = new Background(nextInstance(), this);
        bg2 = new Background(nextInstance(), this);

        /**
         * Add the objects to room. This is necessary so that the room knows that these objects need
         * to be updated and drawn.
         */
        addObject(title);
        addObject(playButton);
        addObject(bg1);
        addObject(bg2);
    }

    /**
     * Set method. I like to define one of these for each room and game object. The purpose of
     * this method is the setup and reset the room. This makes it easy to set up the initial
     * state of the game and to reset whatever rooms need to be reset when the player hits the
     * play or play again button.
     */
    public void set() {
        /*
         * Setting up the title graphic. Since we used a generic GameObject for the title graphic,
         * we'll just do all the setup for it here. The title graphic doesn't do much, so I don't
         * feel the need to define it's own class.
         */
        title.x = getWidth() / 2;            // getWidth() returns the width of this view. This line centers the graphic horizontally.
        title.y = getHeight() * 3 / 4;       // and this positions it 3/4 of the way up the screen.
        title.width = getWidth() * 3 / 4;    // The width of the title will be 3/4 the width of the screen.
        title.height = title.width / 2;      // Our graphic is twice as wide as it is tall.
        title.setGraphic(GameView.title, 1); // We assign the graphic that we added in our GameView to our title object. This graphic has 1 frame.

        /*
         * Setting up the play button will be very similar.
         */
        playButton.x = getWidth() / 2;
        playButton.y = getHeight() / 4;
        playButton.width = getWidth() / 4;
        playButton.height = playButton.width / 2;
        playButton.setGraphic(GameView.play, 2);  // Play button has 2 frames: one for pressed and one for not pressed.

        bg1.set(getWidth() / 2, 4);               // Visible, will move off screen
        bg2.set((int) bg1.x + getWidth(), 4);     // Off screen, will move on screen.
    }

    /**
     * Step event happens every frame.
     *
     * @param dt
     */
    @Override
    public void step(double dt) {
        if (getTouch().objectTouched(playButton)) {  // Is the play button being touched?
            playButton.frame = 1;                    // Pressed frame.
        } else {
            playButton.frame = 0;                    // Not pressed frame.
        }
    }

    public void released(int index){
        /**
         * getTouch() provides many useful functions for getting
         * touchscreen input. See the touchInput example for more
         * information.
         */
        if (getTouch().objectTouched(playButton)) {  // Play button touched
            GameView.game.set();                     // Set up the game room.
            getView().goToRoom(GameView.game);       // Go to the game room.
        }
    }
}
Java Source Code List
