Add Single Key

class Example extends Phaser.Scene
{
    preload ()
    {
        this.load.setBaseURL('https://cdn.phaserfiles.com/v385');
        this.load.atlas('jellies', 'assets/atlas/jellies.png', 'assets/atlas/jellies.json');
    }

    create ()
    {
        const jelly1 = this.add.image(150, 400, 'jellies', 'WithShadow/Jelly1').setScale(0.5);
        const jelly2 = this.add.image(400, 400, 'jellies', 'WithShadow/Jelly2').setScale(0.5);
        const jelly3 = this.add.image(650, 400, 'jellies', 'WithShadow/Jelly3').setScale(0.5);

        const bubble1 = this.createSpeechBubble(20, 180, 220, 80, 'Global Handler!');
        const bubble2 = this.createSpeechBubble(290, 180, 220, 80, 'Global Key Code!');
        const bubble3 = this.createSpeechBubble(560, 180, 220, 80, 'Local Handler!');

        bubble1.setVisible(false);
        bubble2.setVisible(false);
        bubble3.setVisible(false);

        this.add.text(10, 10, 'Press the SPACE BAR', { font: '16px Courier', fill: '#ffffff' }).setShadow(1, 1);

        const spaceKey = this.input.keyboard.addKey(Phaser.Input.Keyboard.KeyCodes.SPACE);

        //  Phase 1: Key event.
        //  Emits only when the SPACE BAR is pressed down, and dispatches from the local Key object.
        //  You can call stopPropagation at this level, which will stop it reaching both listeners below.

        spaceKey.on('down', (key, event) =>
        {

            // event.stopPropagation();

            bubble3.setVisible(true);

        });

        //  Phase 2: Global keydown + keycode handler.
        //  Emits only on the SPACE BAR keycode event, but dispatches globally.
        //  You can call stopPropagation at this level, which will stop it reaching the listener below.

        this.input.keyboard.on('keydown-SPACE', event =>
        {

            event.stopPropagation();

            bubble2.setVisible(true);

        });

        //  Phase 3: Global keydown handler.
        //  Fires on ANY key press, so we need to check the keyCode internally.

        this.input.keyboard.on('keydown', event =>
        {

            if (event.keyCode === Phaser.Input.Keyboard.KeyCodes.SPACE)
            {
                bubble1.setVisible(true);
            }

        });
    }

    createSpeechBubble (x, y, width, height, quote)
    {
        const bubbleWidth = width;
        const bubbleHeight = height;
        const bubblePadding = 10;
        const arrowHeight = bubbleHeight / 3;

        const bubble = this.add.graphics({ x: x, y: y });

        //  Bubble shadow
        bubble.fillStyle(0x222222, 0.5);
        bubble.fillRoundedRect(6, 6, bubbleWidth, bubbleHeight, 16);

        //  Bubble color
        bubble.fillStyle(0xffffff, 1);

        //  Bubble outline line style
        bubble.lineStyle(4, 0x565656, 1);

        //  Bubble shape and outline
        bubble.strokeRoundedRect(0, 0, bubbleWidth, bubbleHeight, 16);
        bubble.fillRoundedRect(0, 0, bubbleWidth, bubbleHeight, 16);

        //  Calculate arrow coordinates
        const point1X = Math.floor(bubbleWidth / 4);
        const point1Y = bubbleHeight;
        const point2X = Math.floor((bubbleWidth / 4) * 1.4);
        const point2Y = bubbleHeight;
        const point3X = Math.floor(bubbleWidth / 4);
        const point3Y = Math.floor(bubbleHeight + arrowHeight);

        //  Bubble arrow shadow
        bubble.lineStyle(4, 0x222222, 0.5);
        bubble.lineBetween(point2X - 1, point2Y + 6, point3X + 2, point3Y);

        //  Bubble arrow fill
        bubble.fillTriangle(point1X, point1Y, point2X, point2Y, point3X, point3Y);
        bubble.lineStyle(2, 0x565656, 1);
        bubble.lineBetween(point2X, point2Y, point3X, point3Y);
        bubble.lineBetween(point1X, point1Y, point3X, point3Y);

        const content = this.add.text(0, 0, quote, { fontFamily: 'Arial', fontSize: 20, color: '#000000', align: 'center', wordWrap: { width: bubbleWidth - (bubblePadding * 2) } });

        const b = content.getBounds();

        content.setPosition(bubble.x + (bubbleWidth / 2) - (b.width / 2), bubble.y + (bubbleHeight / 2) - (b.height / 2));

        const container = this.add.container();

        container.add([ bubble, content ]);

        return container;
    }
}

const config = {
    type: Phaser.AUTO,
    width: 800,
    height: 600,
    parent: 'phaser-example',
    backgroundColor: '#0072bc',
    scene: Example
};

const game = new Phaser.Game(config);
                        

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