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moto.js

A light motion library with curvilinear support, inspired by Popmotion.

npm version npm downloads

Usage

npm i @tuia/moto.js

Documents

API

Examples

tween

tween

import {tween} from '@tuia/moto.js'

tween({
  from: {x: 0, radius: 0, opacity: 1},
  to: {x: 200, radius: 25, opacity: .5},
  duration: 3,
  yoyo: Infinity
}).start(v => {
  target.style.transform = `translateX(${v.x}px)`
  target.style.borderRadius = `${v.radius}px`
  target.style.opacity = `${v.opacity}`
})

chain

chain

import {chain, tween} from '@tuia/moto.js'

chain(
  tween({
    from: {x: 0, radius: 25},
    to: {x: 200, radius: 0}
  }),
  tween({
    from: {x: 0, radius: 0, g: 204, b: 51},
    to: {x: -200, radius: 25, g: 51, b: 204}
  })
).start(v => {
  let target = v.g  ? targetA : targetB
  target.css({
    transform: `translateX(${v.x}px)`,
    borderRadius: `${v.radius}px`,
    backgroundColor: v.g ? `rgb(255, ${v.g}, ${v.b})` : '#fc3'
  })
})

composite

composite

import {curve, composite} from '@tuia/moto.js'

composite({
  position: curve.cubicBezier({
    points: this.points,
    duration: .6
  }),

  color: tween({
    from: {g: 204, b: 51},
    to: {g: 51, b: 204},
    duration: .6
  })
}).start(v => {
  const
    target = this.$refs.target,
    dot = document.createElement('i')
  dot.classList.add('dot')
  target.css({
    backgroundColor: `rgb(255, ${v.color.g}, ${v.color.b})`
  })
  dot.style.top = target.style.top = `${v.position.y}px`
  dot.style.left = target.style.left = `${v.position.x}px`

  target.parentElement.appendChild(dot)
})

bezier

bezier

import {curve} from '@tuia/moto.js'

curve.bezier({
  points: [
    {x: 50, y: 50},
    {x: 150, y: 150},
    {x: 250, y: 50}
  ],
  duration: 3
}).start(v => {
  const dot = document.createElement('i')
  dot.classList.add('dot')
  dot.style.top = target.style.top = `${v.y}px`
  dot.style.left = target.style.left = `${v.x}px`
  target.parentElement.appendChild(dot)
})

cubicBezier

cubicBezier

import {curve} from '@tuia/moto.js'

curve.cubicBezier({
  points: [
    {x: 50, y: 50},
    {x: 100, y: 150},
    {x: 300, y: 50},
    {x: 350, y: 150}
  ]
}).start(v => {
  const dot = document.createElement('i')
  dot.classList.add('dot')
  dot.style.top = target.style.top = `${v.y}px`
  dot.style.left = target.style.left = `${v.x}px`
  target.parentElement.appendChild(dot)
})

catmullRom

catmullRom

import {curve} from '@tuia/moto.js'

curve.catmullRom({
  points: [
    {x: 50, y: 50},
    {x: 100, y: 150},
    {x: 200, y: 100},
    {x: 300, y: 50},
    {x: 350, y: 150}
  ]
}).start(v => {
  const dot = document.createElement('i')
  dot.classList.add('dot')
  dot.style.top = target.style.top = `${v.y}px`
  dot.style.left = target.style.left = `${v.x}px`
  target.parentElement.appendChild(dot)
})