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{"id":3245,"date":"2018-01-08T03:37:17","date_gmt":"2018-01-08T03:37:17","guid":{"rendered":"https:\/\/phasergames.com\/?p=3245"},"modified":"2018-01-08T04:07:42","modified_gmt":"2018-01-08T04:07:42","slug":"ripple-animaton-phaser","status":"publish","type":"post","link":"https:\/\/phasergames.com\/ripple-animaton-phaser\/","title":{"rendered":"Ripple Animaton in Phaser"},"content":{"rendered":"

Phaser Ripple Animation<\/h2>\n
I recently needed a ripple animation for a background effect in a game I was putting together. The simplest thing would be to use a sprite sheet. After a few hours of looking and not finding, I decided to code the animation using Phaser’s graphics. Yes, I know that putting together a ripple sprite sheet is not a great artistic task, but trust me, it is beyond my poor drawing abilities.<\/p>\n
Anyway, this is what I came up with. An object(Ripple) that draws and redraws an ellipse and then after it fades, destroys itself. I then made another object (Ripples) that adds a ripple every 1 second. Here is the result:
\n\n\n<\/iframe>\n\n<h3>The Code:<\/h3>\n<p>How to use<\/p>\n<pre class=\"lang:default decode:true\"> \/\/turn the stage blue\r\n game.stage.backgroundColor = 0x43A8BB;\r\n\r\n \/\/make the ripples\r\n this.ripples = new Ripples();\r\n\r\n \/\/place the ripples\r\n this.ripples.y = game.height * .6;\r\n this.ripples.x = game.width \/ 2;<\/pre>\n<p> <\/p>\n<p>Ripple.js<\/p>\n<pre class=\"lang:javascript\">class Ripple extends Phaser.Group {\r\n constructor() {\r\n super(game);\r\n this.graphics = game.add.graphics();\r\n \/\/the elipse width\r\n this.ww = 1;\r\n \/\/how much to speed up\r\n this.inc = 1;\r\n \/\/add the graphics to the class\r\n this.add(this.graphics);\r\n \/\/start the timer\r\n game.time.events.loop(Phaser.Timer.SECOND \/ 20, this.updateRipple, this);\r\n }\r\n drawRipple() {\r\n \/\/height is 20% of the width\r\n this.hh = this.ww \/ 5;\r\n \/\/set the thickness and color\r\n this.graphics.lineStyle(2, 0xffffff);\r\n \/\/draw the elipse \r\n this.graphics.drawEllipse(0, 0, this.ww, this.hh);\r\n }\r\n updateRipple() {\r\n console.log(\"updateRipple\");\r\n \/\/grow the ripple\r\n this.ww += this.inc;\r\n \/\/turn down the alpha\r\n this.alpha -= .01;\r\n \/\/clear the graphics\r\n this.graphics.clear();\r\n this.drawRipple();\r\n \/\/if the alpha is faded enough\r\n \/\/destroy the object\r\n if (this.alpha < .01) {\r\n this.destroy(true);\r\n }\r\n }\r\n}<\/pre>\n<p>Ripples.js<\/p>\n<pre class=\"lang:javascript\">class Ripples extends Phaser.Group\r\n{\r\n\tconstructor()\r\n\t{\r\n\t\t super(game);\r\n\t\t game.time.events.loop(Phaser.Timer.SECOND, this.addRipple, this);\r\n\t}\r\n\taddRipple()\r\n\t{\r\n\t\tvar r=new Ripple();\r\n\t\tthis.add(r);\r\n\t}\r\n}<\/pre>\n<p><a href=\"http:\/\/www.phasergames.com\/downloads\/phaser-ripple-example\">Source Code<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Phaser Ripple Animation I recently needed a ripple animation for a background effect in a game I was putting together. The simplest thing would be to use a sprite sheet. After a few hours of looking and not finding, I decided to code the animation using Phaser’s graphics. Yes, I know that putting together a […]<\/p>\n","protected":false},"author":1,"featured_media":3836,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[32],"tags":[],"class_list":["post-3245","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-phaser-intermediate"],"yoast_head":"\n<title>Ripple Animaton in Phaser - Phaser Games<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/phasergames.com\/ripple-animaton-phaser\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ripple Animaton in Phaser - Phaser Games\" \/>\n<meta property=\"og:description\" content=\"Phaser Ripple Animation I recently needed a ripple animation for a background effect in a game I was putting together. 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