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@trinketmage/sword

v0.2.2

Published

Javascript animation hero helpers kit

Downloads

36

Vulnerabilities

Powered byPowered by Snyk
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  • 0Medium
  • 0Low

Links

Git

Maintainers

trinketmagetrinketmage

Keywords

motiongesturemousemoveanimationanglepythagorethalestrigonometrymathematics

Readme

sword.js

It's dangerous to go alone! Take this.

Getting started

npm i --save @trinketmage/sword

Mathematics

  • lerp: Linear interpolation.
  • angleToVector: Calculate a 2d vector on unit circle from an angle in degree.
  • vectorToAngle: Calculate an angle in degree from a 2d vector (with optional pivot).

3d

  • getScreenPos: Screen position (2d vector) of position (3d vector).
  • getFovHeigth: Get height of frustrum (y) at a specific depth (z).

glsl

  • stagger: glsl implementation of staggers
#pragma glslify: stagger = require(@trinketmage/sword/src/glsl/stagger)
  • backgroundCover: glsl UV calculation for background cover for fullscreen texture
#pragma glslify: backgroundCover = require(@trinketmage/sword/src/glsl/backgroundCover)