Burbujas de hojas de sprites de lienzo

970 Andev.web

Abrir en el editor Publica tu código

Recomendado

20 March 2023

Barra de navegación Bootstrap responsiva

24 March 2025

Panel de administración de AdminHub v2.1

19 March 2023

Formulario de pago HTML CSS

HTML

CSS

JS

console.clear()

const c = document.querySelector('canvas')
const ctx = c.getContext('2d')
let cw = c.width = innerWidth
let ch = c.height = innerHeight
const bubbles = []
const debounce = gsap.to(window, {duration:0.07})
const img = new Image()
const m = {x:0, y:0}

img.src = 'https://assets.codepen.io/721952/bubbles_1.webp'

img.onload = ()=>{
  for (i=0; i<20; i++) {
    m.x = gsap.utils.random(150, cw-150, 1)
    m.y = gsap.utils.random(150, ch-150, 1)
    makeBubble(true)
  }
}

window.onpointerdown = window.onpointermove = e =>{ 
  m.x = e.x
  m.y = e.y
  makeBubble()
} 
  
function makeBubble(auto){
  if (debounce.progress()==1 || auto) {
    debounce.play(0)
    
    const dist = gsap.utils.random(100, 200)
    const scale = gsap.utils.random(0.4, 0.8)
    const b = {
      dur:gsap.utils.random(3, 7),
      spriteDur:gsap.utils.random(0.12, 0.5),
      rotate:gsap.utils.random(-9, 9),
      scaleX:scale,
      scaleY:scale,
      step:0,
      x:0,
      y:0,
      n:bubbles.length
    }
    
    bubbles.push(b)
    
    gsap.timeline({defaults:{ease:'none'}})
    
    .fromTo(b, { 
      x:m.x-75*scale,
      y:m.y-75*scale,
    },{
      duration:b.dur,
      rotate:'+='+gsap.utils.random(-5, 5, 1),
      motionPath:()=>'M'+b.x+','+b.y+
                     'c'+gsap.utils.random(-dist,dist,1)+','+gsap.utils.random(-dist,dist,1)+' '+
                      gsap.utils.random(-dist,dist,1)+','+gsap.utils.random(-dist,dist,1)+' '+
                      gsap.utils.random(-dist,dist,1)+','+gsap.utils.random(-dist,dist,1)
    }, 0)
    
    .to(b, { 
      duration:b.dur/5,
      ease:'sine.inOut',
      yoyo:true,
      repeat:3,
      repeatRefresh:true,
      scaleX:()=>scale+gsap.utils.random(-0.1,0.1),
      scaleY:()=>scale+gsap.utils.random(-0.1,0.1),
    }, b.dur/5)
    
    .to(b, {
      duration:b.spriteDur,
      step:8, 
      snap:'step'
    }, b.dur-b.spriteDur*2)
    
  }
}

gsap.ticker.add(()=>{
  ctx.clearRect(0,0,cw,ch)
  bubbles.forEach(b=> {
    ctx.translate(b.x+b.scaleX*75, b.y+b.scaleY*75)
    ctx.rotate(b.rotate)
    ctx.drawImage(img, 0, b.step*150, 150, 150, -b.scaleX*75, -b.scaleY*75, b.scaleX*150, b.scaleY*150)
    ctx.rotate(-b.rotate)
    ctx.translate(-b.x-b.scaleX*75, -b.y-b.scaleY*75)
  })
})

window.onresize = ()=>{
  cw = c.width = innerWidth
  ch = c.height = innerHeight
}

Recomendado

Barra de navegación Bootstrap responsiva

Panel de administración de AdminHub v2.1

Formulario de pago HTML CSS

HTMLCopy

CSSCopy

JSCopy

HTML

CSS

JS