https://github.com/lichking24/Thanos_Dust

Thanos dust effect like google search
https://github.com/lichking24/Thanos_Dust

thanos

Last synced: about 2 months ago
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Thanos dust effect like google search

• Host: GitHub
• URL: https://github.com/lichking24/Thanos_Dust
• Owner: lichking24
• Created: 2019-04-29T11:43:08.000Z (over 5 years ago)
• Default Branch: master
• Last Pushed: 2019-04-29T13:15:29.000Z (over 5 years ago)
• Last Synced: 2024-07-13T18:49:07.822Z (2 months ago)
• Topics: thanos
• Language: JavaScript
• Size: 12.9 MB
• Stars: 81
• Watchers: 2
• Forks: 15
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Thanos Dust Effect

## Effects Demo

As Thanos making a snap with the Infinite Gauntlet, half the heros vanish to dust. As using the time stone, people come back.

![](public/img/demo.gif)

## Details

The procedures:

1. Click the Gauntlet button, and display animation to make a snap, and play audio file;

2. Select half heros by random, the random method is to resort members array;

  ```

  arr.sort(function() {

    return 0.5 - Math.random();

  });

  ```

3. Make selected item to dust

  - 3.1 use html2canvas library to convert dom to a canvas image

  - 3.2 split the canvas images into many pieces by pixel, `function generateFrames()`

  - 3.3 create a container which has the same size and position as the converted dom

  - 3.4 appendChild to the container with the pieces

  - 3.5 rotate random degrees and translate random pixel for each piece, which shows the dust animation

  - 3.6 set converted dom item to be invisible and finish the SNAP action

4. Reverse time to bring heros back by adjusting the visibility of converted dom items

## FAQ

**Why use a nodejs express server?**

A static html file will show errors with "Unable to get image data from canvas because the canvas has been tainted by cross-origin data", even if I set allowTaint to be true.