HTML5 prototype of iOS game “Perfect Square!” made with Phaser using only tweens in 100 lines of code

Read all posts about "" game
Did you play Perfect Square! by Boombit? Fit the square onto the platform so that it’s aligned perfectly. Touch it to grow and release to let it fall! It may sound simple, but this one touch game will take super precision and timing to master it! Although it may seem a physics game, I can show you it can be made only with tweens, thanks to Phaser. Let’s have a look at the prototype I made:
Press and hold to make the square grow, release to drop it. As you can see all the cute animations you can see in original game have been featured. I am showing you the source code, still uncommented but a step by step explaination will follow later this week
var game;
var bgColors = [0x62bd18, 0xff5300, 0xd21034, 0xff475c, 0x8f16b2, 0x588c7e, 0x8c4646];
var holeWidthRange = [40, 280];
var wallRange = [10, 70];
window.onload = function() {		
	game = new Phaser.Game(480, 640, Phaser.AUTO, "");
     game.state.add("PlayGame", playGame);
     game.state.start("PlayGame");
}
var playGame = function(game){};
playGame.prototype = {
     preload: function(){
          game.load.image("base", "base.png");
          game.load.image("square", "square.png");
          game.load.image("top", "top.png");
     },
     create: function(){
          game.scale.pageAlignHorizontally = true;
		game.scale.pageAlignVertically = true;
          game.scale.scaleMode = Phaser.ScaleManager.SHOW_ALL;
          var tintColor = bgColors[game.rnd.between(0, bgColors.length - 1)];
          game.stage.backgroundColor = tintColor; 
          this.leftSquare = game.add.sprite(0, game.height, "base");
          this.leftSquare.anchor.set(1, 1); 
          this.rightSquare = game.add.sprite(game.width, game.height, "base");
          this.rightSquare.anchor.set(0, 1); 
          this.leftWall = game.add.sprite(0, game.height - this.leftSquare.height, "top");
          this.leftWall.anchor.set(1, 1); 
          this.rightWall = game.add.sprite(game.width, game.height - this.rightSquare.height, "top");
          this.rightWall.anchor.set(0, 1);
          this.square = game.add.sprite(game.width / 2, - 400, "square");
          this.square.anchor.set(0.5);
          this.square.scale.setTo(0.2, 0.2);
          this.updateLevel();            
     },
     updateLevel: function(){
          var holeWidth = game.rnd.between(holeWidthRange[0], holeWidthRange[1]);
          var wallWidth = game.rnd.between(wallRange[0], wallRange[1]);
          var leftSquareTween = game.add.tween(this.leftSquare).to({
               x: (game.width - holeWidth) / 2
          }, 500, Phaser.Easing.Cubic.Out, true); 
          var rightSquareTween = game.add.tween(this.rightSquare).to({
               x: (game.width + holeWidth) / 2
          }, 500, Phaser.Easing.Cubic.Out, true);
          var leftWalltween = game.add.tween(this.leftWall).to({
               x: (game.width - holeWidth) / 2 - wallWidth
          }, 500, Phaser.Easing.Cubic.Out, true); 
          var rightWallTween = game.add.tween(this.rightWall).to({
               x: (game.width + holeWidth) / 2 + wallWidth
          }, 500, Phaser.Easing.Cubic.Out, true);
          var squareTween = game.add.tween(this.square).to({
               y: 150,
               angle: 50
          }, 1000, Phaser.Easing.Cubic.Out, true); 
          squareTween.onComplete.add(function(){
               game.input.onDown.add(this.grow, this);
               this.rotateTween = game.add.tween(this.square).to({
                    angle: 40
               }, 300, Phaser.Easing.Linear.None, true, 0, -1, true)        
          }, this)              
     },
     grow: function(){
          game.input.onDown.remove(this.grow, this);
          game.input.onUp.add(this.stop, this);
          this.growTween = game.add.tween(this.square.scale).to({
               x: 1,
               y: 1
          }, 1500, Phaser.Easing.Linear.None, true);                        
     },
     stop: function(){
          game.time.events.add(Phaser.Timer.SECOND * 2, function(){
               game.state.start("PlayGame");     
          }, this); 
          game.input.onUp.remove(this.stop, this);  
          this.growTween.stop(); 
          this.rotateTween.stop();
          this.rotateTween = game.add.tween(this.square).to({
               angle: 0
          }, 300, Phaser.Easing.Cubic.Out, true);
          if(this.square.width <= this.rightSquare.x - this.leftSquare.x){
               this.rotateTween.onComplete.add(function(){
                    this.fallTween = game.add.tween(this.square).to({
                         y: game.height + this.square.height
                    }, 600, Phaser.Easing.Cubic.Out, true);
               }, this);       
          }
          else{
               this.square.anchor.set(0.5, 1);
               if(this.square.width <= this.rightWall.x - this.leftWall.x){
                    var destY = game.height - this.leftSquare.height;  
               }
               else{
                    var destY = game.height - this.leftSquare.height - this.leftWall.height;
               }
               game.add.tween(this.square).to({
                    y: game.height - this.leftSquare.height
               }, 600, Phaser.Easing.Bounce.Out, true);       
          }
     }
}
As you can see it’s only made with tweens, there isn’t any physics engine in it. Download the source code.

Get the most popular Phaser 3 book

Through 202 pages, 32 source code examples and an Android Studio project you will learn how to build cross platform HTML5 games and create a complete game along the way.

Get the book

215 GAME PROTOTYPES EXPLAINED WITH SOURCE CODE
// 1+2=3
// 100 rounds
// 10000000
// 2 Cars
// 2048
// A Blocky Christmas
// A Jumping Block
// A Life of Logic
// Angry Birds
// Angry Birds Space
// Artillery
// Astro-PANIC!
// Avoider
// Back to Square One
// Ball Game
// Ball vs Ball
// Ball: Revamped
// Balloon Invasion
// BallPusher
// Ballz
// Bar Balance
// Bejeweled
// Biggification
// Block it
// Blockage
// Bloons
// Boids
// Bombuzal
// Boom Dots
// Bouncing Ball
// Bouncing Ball 2
// Bouncy Light
// BoxHead
// Breakout
// Bricks
// Bubble Chaos
// Bubbles 2
// Card Game
// Castle Ramble
// Chronotron
// Circle Chain
// Circle Path
// Circle Race
// Circular endless runner
// Cirplosion
// CLOCKS - The Game
// Color Hit
// Color Jump
// ColorFill
// Columns
// Concentration
// Crossy Road
// Crush the Castle
// Cube Jump
// CubesOut
// Dash N Blast
// Dashy Panda
// Deflection
// Diamond Digger Saga
// Don't touch the spikes
// Dots
// Down The Mountain
// Drag and Match
// Draw Game
// Drop Wizard
// DROP'd
// Dudeski
// Dungeon Raid
// Educational Game
// Elasticity
// Endless Runner
// Erase Box
// Eskiv
// Farm Heroes Saga
// Filler
// Flappy Bird
// Fling
// Flipping Legend
// Floaty Light
// Fuse Ballz
// GearTaker
// Gem Sweeper
// Globe
// Goat Rider
// Gold Miner
// Grindstone
// GuessNext
// Helicopter
// Hero Emblems
// Hero Slide
// Hexagonal Tiles
// HookPod
// Hop Hop Hop Underwater
// Horizontal Endless Runner
// Hundreds
// Hungry Hero
// Hurry it's Christmas
// InkTd
// Iromeku
// Jet Set Willy
// Jigsaw Game
// Knife Hit
// Knightfall
// Legends of Runeterra
// Lep's World
// Line Rider
// Lumines
// Magick
// MagOrMin
// Mass Attack
// Math Game
// Maze
// Meeblings
// Memdot
// Metro Siberia Underground
// Mike Dangers
// Mikey Hooks
// Nano War
// Nodes
// o:anquan
// One Button Game
// One Tap RPG
// Ononmin
// Pacco
// Perfect Square!
// Perfectionism
// Phyballs
// Pixel Purge
// PixelField
// Planet Revenge
// Plants Vs Zombies
// Platform
// Platform game
// Plus+Plus
// Pocket Snap
// Poker
// Pool
// Pop the Lock
// Pop to Save
// Poux
// Pudi
// Pumpkin Story
// Puppet Bird
// Pyramids of Ra
// qomp
// Quick Switch
// Racing
// Radical
// Rebuild Chile
// Renju
// Rise Above
// Risky Road
// Roguelike
// Roly Poly
// Run Around
// Rush Hour
// SameGame
// SamePhysics
// Save the Totem
// Security
// Serious Scramblers
// Shrink it
// Sling
// Slingy
// Snowflakes
// Sokoban
// Space Checkers
// Space is Key
// Spellfall
// Spinny Gun
// Splitter
// Spring Ninja
// Sproing
// Stabilize!
// Stack
// Stairs
// Stick Hero
// String Avoider
// Stringy
// Sudoku
// Super Mario Bros
// Surfingers
// Survival Horror
// Talesworth Adventure
// Tetris
// The Impossible Line
// The Moops - Combos of Joy
// The Next Arrow
// Threes
// Tic Tac Toe
// Timberman
// Tiny Wings
// Tipsy Tower
// Toony
// Totem Destroyer
// Tower Defense
// Trick Shot
// Tunnelball
// Turn
// Turnellio
// TwinSpin
// vvvvvv
// Warp Shift
// Way of an Idea
// Whack a Creep
// Wheel of Fortune
// Where's my Water
// Wish Upon a Star
// Word Game
// Wordle
// Worms
// Yanga
// Yeah Bunny
// Zhed
// zNumbers