Efeitos visuais criativos

Cenário de ondas em camadas do jardim noturno

Conclua um cenário de ondas em camadas no Jardim Noturno: inclui conteúdo real, controles acionáveis, feedback de estado claro e layout responsivo entre tamanhos.

Efeitos visuais criativosCenário de ondas em múltiplas camadasHTMLCSS AnimationJavaScript
É possível editar, executar e salvar este exemplo após ativar JavaScript. O código-fonte fixo é o seguinte:
<!doctype html>
<html lang="pt-BR" dir="ltr">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Cenário de ondas em camadas do jardim noturno</title>
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</head>
<body data-aesthetic="monochrome" data-composition="studio">
  <main class="page">
    <header class="mast"><div><span class="eyebrow">monocromático / cenário de ondas em camadas / INTERMEDIATE</span><h1>Cenário de ondas em camadas do jardim noturno</h1><p class="intro">Conclua um cenário de ondas em camadas no Jardim Noturno: inclui conteúdo real, controles acionáveis, feedback de estado claro e layout responsivo entre tamanhos.</p></div><span class="scenario">Jardim noturno</span></header>
    <div class="composition-studio"><div class="studio-ruler" aria-hidden="true"></div><section class="demo" aria-label="Área interativa do cenário em camadas de ondas do Jardim Noturno"><div class="workflow-session"><header class="session-command"><div><span class="eyebrow">Jardim noturno SESSION</span><h2>Bancada de monitoramento do jardim</h2></div><output id="workflowSessionClock">00:45</output><label>Duração da rodada<input id="workflowSessionLength" type="range" min="15" max="90" step="15" value="45"><span>s</span></label><button id="workflowSessionToggle" class="action primary" type="button">Iniciar monitoramento</button></header><div id="workflowSessionProgress" role="progressbar" aria-label="Progresso da observação do jardim" aria-valuemin="0" aria-valuemax="100" aria-valuenow="0"><i></i></div><section id="workflowCore" class="workflow-core session-stage" data-session-phase="ready" tabindex="-1"><!-- 11DZ_CORE_START:creative-effects-wave-layers --><div class="wave-lab"><section class="wave-stage" aria-label="Ondas dinâmicas de três camadas do jardim noturno"><svg id="waveSvg" viewBox="0 0 960 440" role="img" aria-labelledby="waveTitle waveDescription"><title id="waveTitle">Cenário de ondas em múltiplas camadas</title><desc id="waveDescription">Três camadas de ondas coloridas com velocidades e amplitudes diferentes</desc><g id="waveGroup"><path class="wave-path wave-back"></path><path class="wave-path wave-middle"></path><path class="wave-path wave-front"></path></g></svg><strong>Jardim noturno</strong></section><aside class="wave-controls panel"><span class="eyebrow">WAVE LAYERS</span><h2>Cenário de ondas em múltiplas camadas</h2><label>Amplitude da onda <input id="waveAmplitude" type="range" min="18" max="95" value="58" data-core-bridge="creative-effects-wave-layers"><output id="waveAmplitudeValue">58px</output></label><label>Densidade das cristas da onda <input id="waveFrequency" type="range" min="1" max="5" value="3"><output id="waveFrequencyValue">3</output></label><button id="wavePause" class="action" type="button" aria-pressed="false">Pausar ondas</button></aside></div><!-- 11DZ_CORE_END --></section><footer class="session-log"><strong id="workflowSessionScore">0 pontos de verificação de interação</strong><ol id="workflowSessionLaps" aria-label="Registro da rodada"></ol></footer></div><p id="status" class="status" role="status" aria-live="polite"></p></section></div>
  </main>
  <script>
    'use strict';
    const statusOutput = document.querySelector('#status');
    const announce = message => { statusOutput.textContent = message; };
    /* 11DZ_CORE_SCRIPT_START:creative-effects-wave-layers */
const waveStage=document.querySelector('.wave-stage');const waveAmplitude=document.querySelector('#waveAmplitude');const waveFrequency=document.querySelector('#waveFrequency');const wavePaths=[...document.querySelectorAll('.wave-path')];function wavePath(amplitude,frequency,offset){let path='M -240 300';for(let x=-240;x<=1200;x+=24){const y=300+Math.sin((x/960*frequency*Math.PI*2)+offset)*amplitude;path+=' L '+x+' '+y.toFixed(1);}return path;}function renderWaves(){const amplitude=Number(waveAmplitude.value);const frequency=Number(waveFrequency.value);wavePaths.forEach((path,index)=>path.setAttribute('d',wavePath(amplitude*(.55+index*.22),frequency-index*.35,index*1.8)));document.querySelector('#waveAmplitudeValue').textContent=amplitude+'px';document.querySelector('#waveFrequencyValue').textContent=frequency;announce('Amplitude da onda '+amplitude+' Pixels, densidade '+frequency);}[waveAmplitude,waveFrequency].forEach(input=>input.addEventListener('input',renderWaves));document.querySelector('#wavePause').addEventListener('click',event=>{const paused=waveStage.classList.toggle('is-paused');event.currentTarget.textContent=paused?'Continuar onda':'Pausar ondas';event.currentTarget.setAttribute('aria-pressed',String(paused));announce(paused?'As ondas em camadas foram pausadas':'As camadas de ondas múltiplas continuam se movendo');});renderWaves();
/* 11DZ_CORE_SCRIPT_END */
const workflowBridgeSpec={"name":"creative-effects-wave-layers","selector":"[data-core-bridge=\"creative-effects-wave-layers\"]","mode":"range","key":"ArrowRight"};const workflowBridgeCore=document.querySelector('#workflowCore');const workflowBridgeControl=workflowBridgeCore.querySelector(workflowBridgeSpec.selector);if(!workflowBridgeControl)throw new Error('Missing core bridge: '+workflowBridgeSpec.name);const workflowBridgeControlledId=workflowBridgeControl.getAttribute('aria-controls');const workflowBridgeControlled=workflowBridgeControlledId?document.getElementById(workflowBridgeControlledId):null;workflowBridgeCore.dataset.workflowBridge=workflowBridgeSpec.name;workflowBridgeCore.dataset.workflowVersion='0';function workflowBridgeSerialize(){const visualNode=workflowBridgeCore.firstElementChild||workflowBridgeCore;const visual=getComputedStyle(visualNode);const outputs=[...workflowBridgeCore.querySelectorAll('output,[role="status"],[aria-live],meter,progress')].map(node=>node.textContent.trim()+'|'+node.getAttribute('aria-valuenow')+'|'+node.getAttribute('value'));const canvas=[...workflowBridgeCore.querySelectorAll('canvas')].map(node=>{try{return node.toDataURL().slice(-160);}catch{return 'canvas-unavailable';}});return JSON.stringify({html:workflowBridgeCore.innerHTML,status:statusOutput.textContent,outputs,canvas,visual:[visual.display,visual.visibility,visual.opacity,visual.transform,visual.filter,visual.backgroundColor,visual.width,visual.height],scroll:workflowBridgeSpec.mode==='scroll'?workflowBridgeControl.scrollTop:null});}let workflowBridgeLastEffect=workflowBridgeSerialize();function workflowBridgeSummary(){const label=(workflowBridgeControl.getAttribute('aria-label')||workflowBridgeControl.textContent||workflowBridgeControl.value||workflowBridgeSpec.name).trim().replace(/\s+/g,' ').slice(0,72);return label+' · versão principal '+workflowBridgeCore.dataset.workflowVersion;}function workflowBridgeCommit(){const effect=workflowBridgeSerialize();if(effect===workflowBridgeLastEffect)return {changed:false,summary:workflowBridgeSummary()};workflowBridgeLastEffect=effect;workflowBridgeCore.dataset.workflowVersion=String(Number(workflowBridgeCore.dataset.workflowVersion||0)+1);return {changed:true,summary:workflowBridgeSummary()};}function workflowBridgeScheduleCommit(){queueMicrotask(workflowBridgeCommit);setTimeout(workflowBridgeCommit,0);}workflowBridgeControl.addEventListener("input",workflowBridgeScheduleCommit);workflowBridgeControl.addEventListener('change',workflowBridgeScheduleCommit);const workflowBridgeStateTargets=new Set(workflowBridgeCore.querySelectorAll('dialog'));if(workflowBridgeControlled&&workflowBridgeCore.contains(workflowBridgeControlled))workflowBridgeStateTargets.add(workflowBridgeControlled);workflowBridgeStateTargets.forEach(target=>['close','cancel','toggle'].forEach(eventName=>target.addEventListener(eventName,workflowBridgeScheduleCommit)));function workflowBridgeActivate(){workflowBridgeControl.focus();const step=Number(workflowBridgeControl.step)||1;const min=workflowBridgeControl.min===''?-Infinity:Number(workflowBridgeControl.min);const max=workflowBridgeControl.max===''?Infinity:Number(workflowBridgeControl.max);let next=Math.min(max,Math.max(min,(Number(workflowBridgeControl.value)||0)+step));if(next===Number(workflowBridgeControl.value))next=Math.max(min,Number(workflowBridgeControl.value)-step);workflowBridgeControl.value=String(next);workflowBridgeControl.dispatchEvent(new Event('input',{bubbles:true}));workflowBridgeControl.dispatchEvent(new Event('change',{bubbles:true}));const result=workflowBridgeCommit();setTimeout(workflowBridgeCommit,0);return result;}function workflowBridgeReset(){workflowBridgeCore.dataset.workflowVersion='0';workflowBridgeLastEffect=workflowBridgeSerialize();}
const workflowSessionCore=document.querySelector('#workflowCore');const workflowSessionToggle=document.querySelector('#workflowSessionToggle');const workflowSessionLength=document.querySelector('#workflowSessionLength');const workflowSessionState={phase:'ready',elapsed:0,limit:Number(workflowSessionLength.value),checkpoints:[],timer:null};function workflowSessionFormat(seconds){return String(Math.floor(seconds/60)).padStart(2,'0')+':'+String(seconds%60).padStart(2,'0');}function workflowSessionDrive(){const percent=Math.min(100,Math.round(workflowSessionState.elapsed/workflowSessionState.limit*100));document.querySelector('#workflowSessionClock').textContent=workflowSessionFormat(Math.max(0,workflowSessionState.limit-workflowSessionState.elapsed));const progress=document.querySelector('#workflowSessionProgress');progress.setAttribute('aria-valuenow',String(percent));progress.querySelector('i').style.width=percent+'%';workflowSessionCore.dataset.sessionPhase=workflowSessionState.phase;document.querySelector('#workflowSessionScore').textContent=workflowSessionState.checkpoints.length+' pontos de verificação de interação';}function workflowSessionLap(label){workflowSessionState.checkpoints.push({label,at:workflowSessionState.elapsed});const item=document.createElement('li');item.textContent=label+' · '+workflowSessionFormat(workflowSessionState.elapsed);document.querySelector('#workflowSessionLaps').append(item);workflowSessionDrive();}function workflowSessionStop(complete=false){clearInterval(workflowSessionState.timer);workflowSessionState.timer=null;workflowSessionState.phase=complete?'complete':'paused';workflowSessionToggle.textContent=complete?'Reiniciar':'Continuar rodada';workflowSessionToggle.setAttribute('aria-pressed','false');workflowSessionDrive();announce(complete?'Rodada de observação do jardim concluída':'A rodada foi pausada');}function workflowSessionStart(){if(workflowSessionState.phase==='complete'){workflowSessionState.elapsed=0;workflowSessionState.checkpoints=[];document.querySelector('#workflowSessionLaps').replaceChildren();}workflowSessionState.phase='running';workflowSessionToggle.textContent='Pausar rodada';workflowSessionToggle.setAttribute('aria-pressed','true');const bridge=workflowBridgeActivate();workflowSessionLap(bridge.summary);clearInterval(workflowSessionState.timer);workflowSessionState.timer=setInterval(()=>{workflowSessionState.elapsed+=1;if(workflowSessionState.elapsed>=workflowSessionState.limit){workflowSessionStop(true);return;}workflowSessionDrive();},1000);workflowSessionDrive();announce('A rodada de observação do jardim começou · '+bridge.summary);}workflowSessionToggle.addEventListener('click',()=>workflowSessionState.phase==='running'?workflowSessionStop():workflowSessionStart());workflowSessionLength.addEventListener('input',()=>{workflowSessionState.limit=Number(workflowSessionLength.value);workflowSessionState.elapsed=Math.min(workflowSessionState.elapsed,workflowSessionState.limit);workflowSessionDrive();});workflowSessionCore.addEventListener('keydown',event=>{if(event.key==='Enter'||event.key===' '){workflowSessionLap('operação por teclado');}});workflowSessionCore.addEventListener('click',event=>{if(event.target.closest('[data-core-bridge]'))workflowSessionLap('Ação principal · '+workflowBridgeSummary());});document.addEventListener('visibilitychange',()=>{if(document.hidden&&workflowSessionState.phase==='running')workflowSessionStop();});workflowSessionDrive();
workflowBridgeReset();
  </script>
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</html>
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