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JavaScript Introducing JavaScript Let's Make a Game Modifying Values

Ali .
Ali .
15,521 Points

I need help PLZ.

Modify the platform.create command on line 24 to move the platform 100 pixels down, making the new coordinates (300, 200). You can click the Preview button to see what the game looks like. Click the Editor button to return to the code editor.

game.js
var game;
var player;
var platforms;
var badges;
var coins;
var cursors;
var jumpButton;
var text;
var winningMessage;
var won = false;
var currentScore = 0;
var winningScore = 100;

function createCoins() {
    coins = game.add.physicsGroup();

    coinCreate(375, 100, 'coin');

}

function createPlatforms() {
    platforms = game.add.physicsGroup();

    platforms.create(100, 100, 'platform');
    platforms.create(400, 450, 'platform');
    platforms.create(100, 450, 'platform');
    platfroms.create(300, 200, 'platform');

    platforms.setAll('body.immovable', true);
}

function createBadge() {
    badges = game.add.physicsGroup();

    var badge = badges.create(550, 450, 'badge');
    badge.animations.add('spin');
    badge.animations.play('spin', 10, true);
}

function coinCreate(left, top, coinImage) {
    var coin = coins.create(left, top, coinImage);
    coin.animations.add('spin');
    coin.animations.play('spin', 10, true);
}

function collectHandler(player, coin) {
    coin.kill();
    currentScore = currentScore + 10;
    if (currentScore === winningScore) {
        createBadge();
    }
}

function collectBadgeHandler(player, badge) {
    badge.kill();
    won = true;
}

window.onload = function () {

    game = new Phaser.Game(800, 600, Phaser.AUTO, '', { preload: preload, create: create, update: update, render: render });

    function preload() {

        game.stage.backgroundColor = '#5db1ad';
        //Load images
        game.load.image('platform', 'platform_1.png');
        game.load.image('platform2', 'platform_2.png');
        //Load spritesheets
        game.load.spritesheet('player', 'chalkers.png', 48, 62);
        game.load.spritesheet('coin', 'coin.png', 36, 44);
        game.load.spritesheet('badge', 'badge.png', 42, 54);
    }

    function create() {

        player = game.add.sprite(50, 600, 'player');
        player.animations.add('walk');
        player.anchor.setTo(0.5, 1);

        game.physics.arcade.enable(player);

        player.body.collideWorldBounds = true;
        player.body.gravity.y = 500;

        createCoins();
        createPlatforms();

        cursors = game.input.keyboard.createCursorKeys();
        jumpButton = game.input.keyboard.addKey(Phaser.Keyboard.SPACEBAR);

        text = game.add.text(16, 16, "SCORE: " + currentScore, { font: "Press Start 2P", fontSize: 18, fill: "white" });
        winningMessage = game.add.text(game.world.centerX, 250, "", { font: "Press Start 2P", fontSize:"48px", fill: "white" });
        winningMessage.anchor.setTo(0.5, 1);

    }

    function update() {
        text.text = "SCORE: " + currentScore;
        game.physics.arcade.collide(player, platforms);
        game.physics.arcade.overlap(player, coins, collectHandler);
        game.physics.arcade.overlap(player, badges, collectBadgeHandler);

        player.body.velocity.x = 0;

        if (cursors.left.isDown) {
            player.animations.play('walk', 10, true);
            player.body.velocity.x = -300;
            player.scale.x = - 1;
        }
        else if (cursors.right.isDown) {
            player.animations.play('walk', 10, true);
            player.body.velocity.x = 300;
            player.scale.x = 1;
        }
        else {
            player.animations.stop();
        }

        if (jumpButton.isDown && (player.body.onFloor() || player.body.touching.down)) {
            player.body.velocity.y = -400;
        }
        if (won) {
            winningMessage.text = "YOU WIN!!!";
        }

    }

    function render() {

    }

};

2 Answers

Steven Sullivan
Steven Sullivan
11,616 Points
platfroms.create(300, 200, 'platform');

'platforms' is spelled incorrectly -- try this instead:

platforms.create(300, 200, 'platform');
Ali .
Ali .
15,521 Points

Thanks Steven.

Andres Contreras
Andres Contreras
2,135 Points

This have to work:

starCreate(215, 100, 'star'); starCreate(115, 200, 'star');

For sure !!