
FIRE WORKS ANIMATIONS HOW TO
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FIRE WORKS ANIMATIONS CODE
The code base also includes SoundManager, a Javascript API which allows ECMAscript (Javascript)-controlled sound effects reliably on IE and Mozilla across the Windows and Linux platforms. We and our partners use cookies on this site to improve our service, perform analytics, personalize advertising, measure advertising performance, and remember website preferences. Some basic examples are given that show the minimal requirements (Javascript/CSS references etc.) for the script to work. Risk of browser crash on IE/Mozilla under Win32 from many simultaneous sound calls due to sketchy JS->ActiveX (Flash) bridgeĭownload, extract and view.Initial object creation can temporariliy freeze active animations (depending on CPU load).May drip a bit.) Known Bugs ( "Unintended features") Extensible (ideally), object-oriented, memory-leak-tested code*.Standard DOM calls work under XML doctypes (ie.Single-image, tile-based animation for efficiency.Sound panning effect based on firework location (left/right) on screen.Nifty queue-based animation (easily set up your own firework sequences).Optional script-driven sound effects provided by SoundManager API.Customizable API allows for additional firework types and effects.Refer to the code for the parameters used to make the effect.įireworks does the following nifty things: Demo Presetsĭon't want to play with sliders? Here are a few canned effects that I thought were neat. Note: Random values will be substituted for null arguments and options that are not applied. Fireworks ParametersĬreateFirework( nRadius,nParticles,nCircles,burstType,startX,startY,burstX,burstY)) The code required to generate the current effect is dynamically updated as you adjust the controls refer to the createFirework() API call below. Not all combinations will look good, but the idea is to experiment.ĭrag the sliders (or click a point on the bar) to set the various parameters available such as blast radius and the number of particles per explosion, then click "fire" to see the results. Why explain through reading when you can demonstrate by example? Try playing around with the sliders below for a wide range of visual effects. It also serves as a dirty browser performance test of sorts, as a large number of elements are dynamically created, moved and destroyed on this page as the script runs. Nonetheless, Fireworks has been published here for fun, experimenting a bit with simple trigonometry and math, and those who are perhaps interested in javascript animation, object-oriented code or script-driven sound. Exploding firework animations are hot, the new black, the script equivalent of the blink tag. GIF images so popular on the web in 1997. And come on, who doesn't want something like that? As far as appropriateness is concerned, this effect could be compared to the dripping-blood-line, skull and fireball animated. Furthermore to try to improve the similarity, a fader effect plays on the A javascript animation experiment What's this all about? (AKA, "Holy pointless lightshow, Batman!")įireworks.js is a bit of Javascript that creates starburst-type explosions in a web document in short, it's a fireworks effect someone could theoretically use on their site. The application implements 10 different explosion forms from basic (circle) to more strange. The form of the explosion is given by the expression of the initial speed of the explosion particles. The physical engine uses the fundamental principle of dynamics: sum of external forces equals the mass multiplied by the acceleration. The refresh position is computed by a basic physical engine in fact each particle has a mass and forces applied on it.



FIRE WORKS ANIMATIONS SIMULATOR
DescriptionĮach fireworks bomb contains a list of fireworks particles, the first time the list consists of only one particle launched on vertical axis when this particle comes on its apogee, it is deleted and new particles populate the list those particles symbolise the explosion particles.Īt each timer tick, the simulator control refreshes the position of each particle of each bomb. In fact, the user control manages a list of fireworks bombs all along their life cycle the user can launch at any time a new bomb via the bomb launcher controls on the bottom of the window. The aim of the application is to display firework particles on a dedicated user control. The purpose of the article is more to present the application than to explain the technical facets of the code which is in fact quite simple.
