In addition to Weibo, there is also WeChat
Please pay attention
WeChat public account
Shulou
2025-09-22 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Development >
Share
Shulou(Shulou.com)06/01 Report--
Xiaobian to share with you how to use HTML5 code to make fireworks effect tutorial, I believe most people still do not know how, so share this article for your reference, I hope you read this article after a lot of harvest, let us go to understand it!
The principle is simple... Just write a pyrotechnic class and a debris class, instantiate it and let it fly, then set the dead attribute of the pyrotechnic object to true after reaching a certain point, then instantiate a certain number of debris objects, and give the debris object a random target point to reach, and then let all debris objects fly past it.
[Fireworks]
XML/HTML Code Copy content to clipboard
var Boom = function(x,r,c,boomArea,shape){ //pyrotechnic object
this.booms = [];
this.x = x;
this.y = (canvas.height+r);
this.r = r;
this.c = c;
this.shape = shape || false;
this.boomArea = boomArea;
this.theta = 0;
this.dead = false;
this.ba = parseInt(getRandom(80 , 200));
}
Boom.prototype = {
_paint:function(){
ctx.save();
ctx.beginPath();
ctx.arc(this.x,this.y,this.r,0,2*Math.PI);
ctx.fillStyle = this.c;
ctx.fill();
ctx.restore();
},
_move:function(){
var dx = this.boomArea.x - this.x , dy = this.boomArea.y - this.y;
thisthis.x = this.x+dx*0.01;
thisthis.y = this.y+dy*0.01;
if(Math.abs(dx)
Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.
Views: 0
*The comments in the above article only represent the author's personal views and do not represent the views and positions of this website. If you have more insights, please feel free to contribute and share.
The market share of Chrome browser on the desktop has exceeded 70%, and users are complaining about
The world's first 2nm mobile chip: Samsung Exynos 2600 is ready for mass production.According to a r
A US federal judge has ruled that Google can keep its Chrome browser, but it will be prohibited from
Continue with the installation of the previous hadoop.First, install zookooper1. Decompress zookoope
About us Contact us Product review car news thenatureplanet
More Form oMedia: AutoTimes. Bestcoffee. SL News. Jarebook. Coffee Hunters. Sundaily. Modezone. NNB. Coffee. Game News. FrontStreet. GGAMEN
© 2024 shulou.com SLNews company. All rights reserved.