Creative Visual Effects
Botanical Lab Confetti Burst Effect

Complete the confetti burst effect for the botanical lab scenario: includes realistic content, actionable controls, clear state feedback, and responsive layouts.
Creative Visual EffectsConfetti Burst EffectHTMLCanvasJavaScript
With JavaScript enabled, you can edit, run, and save this example. The fixed source is as follows:
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  <title>Botanical Lab Confetti Burst Effect</title>
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    <header class="mast"><div><span class="eyebrow">dashboard / Confetti Burst Effect / INTERMEDIATE</span><h1>Botanical Lab Confetti Burst Effect</h1><p class="intro">Complete the confetti burst effect for the botanical lab scenario: includes realistic content, actionable controls, clear state feedback, and responsive layouts.</p></div><span class="scenario">Botanical Lab</span></header>
    <figure class="composition-gallery"><section class="demo" aria-label="Botanical Lab Confetti Burst Interactive Area"><div id="workflowSpatial" class="workflow-spatial" style="--spatial-width:64%;--spatial-zoom:1"><header><div><span class="eyebrow">Botanical Lab SPATIAL CANVAS</span><h2>Botanical Lab Adjustment Panel</h2></div><label>Visual intensity share<input id="workflowSpatialWidth" type="range" min="38" max="82" value="64"><output id="workflowSpatialWidthValue">64%</output></label><label>Content Scaling<input id="workflowSpatialZoom" type="range" min="80" max="120" value="100"><output id="workflowSpatialZoomValue">100%</output></label></header><div class="spatial-grid"><section id="workflowCore" class="workflow-core spatial-core"><!-- 11DZ_CORE_START:creative-effects-confetti-burst --><div class="confetti-lab"><section class="confetti-stage"><canvas id="confettiCanvas" width="960" height="460" aria-label="Botanical Lab Confetti Burst Canvas" aria-describedby="confettiHelp">Your browser does not support Canvas.</canvas><div><span>Botanical Lab</span><h2>Fill the moments worth celebrating with color</h2><p id="confettiHelp">Click the button or any area on the canvas to trigger confetti.</p></div></section><aside class="confetti-controls panel"><span class="eyebrow">CONFETTI BURST</span><h2>Confetti Burst Effect</h2><label>Burst Count <input id="confettiAmount" type="range" min="20" max="120" value="70" data-core-bridge="creative-effects-confetti-burst"><output id="confettiAmountValue">70</output></label><label>Gravity Strength <input id="confettiGravity" type="range" min="2" max="16" value="8"><output id="confettiGravityValue">8</output></label><button id="confettiBurst" class="action primary" type="button">Release Confetti</button><button id="confettiClear" class="action" type="button">Clear Canvas</button></aside></div><!-- 11DZ_CORE_END --></section><input id="workflowSpatialHandle" class="spatial-handle" type="button" value="↔" aria-label="Drag to adjust the main case preview width"><aside><strong>Botanical Lab Base Layer</strong><p>The botanical lab’s dynamic layers and display layers will be rearranged according to the canvas size.</p><output id="workflowSpatialStatus">Width 64%, zoom 100%</output><input id="workflowSpatialApply" class="action primary" type="button" value="Application Effect"></aside></div></div><p id="status" class="status" role="status" aria-live="polite"></p></section><figcaption class="gallery-caption"><strong>Botanical Lab / GALLERY 03</strong></figcaption></figure>
  </main>
  <script>
    'use strict';
    const statusOutput = document.querySelector('#status');
    const announce = message => { statusOutput.textContent = message; };
    /* 11DZ_CORE_SCRIPT_START:creative-effects-confetti-burst */
const confettiCanvas=document.querySelector('#confettiCanvas');const confettiContext=confettiCanvas.getContext('2d');const confettiAmount=document.querySelector('#confettiAmount');const confettiGravity=document.querySelector('#confettiGravity');const confettiReduced=matchMedia('(prefers-reduced-motion: reduce)').matches;let confettiPieces=[];let confettiFrame=0;const confettiColors=['#fde047','#fb7185','#38bdf8','#34d399','#c084fc'];function sizeConfettiCanvas(){const rect=confettiCanvas.getBoundingClientRect();const ratio=Math.min(2,devicePixelRatio||1);confettiCanvas.width=Math.max(320,Math.round(rect.width*ratio));confettiCanvas.height=Math.max(280,Math.round(rect.height*ratio));confettiContext.setTransform(ratio,0,0,ratio,0,0);}function burstConfetti(x,y){const count=Number(confettiAmount.value);for(let index=0;index<count;index+=1){const angle=Math.PI*2*index/count+(index%7)*.08;const speed=2.8+(index%13)*.22;confettiPieces.push({x,y,vx:Math.cos(angle)*speed,vy:Math.sin(angle)*speed-4.8,rotation:index*.7,spin:(index%2?1:-1)*.08,w:5+index%7,h:9+index%8,color:confettiColors[index%confettiColors.length],life:1});}cancelAnimationFrame(confettiFrame);drawConfetti();announce('Released '+count+' Confetti pieces');}function drawConfetti(){const rect=confettiCanvas.getBoundingClientRect();confettiContext.clearRect(0,0,rect.width,rect.height);confettiPieces.forEach(piece=>{if(!confettiReduced){piece.vy+=Number(confettiGravity.value)*.012;piece.x+=piece.vx;piece.y+=piece.vy;piece.rotation+=piece.spin;piece.life-=.004;}confettiContext.save();confettiContext.globalAlpha=Math.max(0,piece.life);confettiContext.translate(piece.x,piece.y);confettiContext.rotate(piece.rotation);confettiContext.fillStyle=piece.color;confettiContext.fillRect(-piece.w/2,-piece.h/2,piece.w,piece.h);confettiContext.restore();});confettiPieces=confettiPieces.filter(piece=>piece.life>0&&piece.y<rect.height+40);if(confettiPieces.length&&!confettiReduced)confettiFrame=requestAnimationFrame(drawConfetti);}document.querySelector('#confettiBurst').addEventListener('click',()=>burstConfetti(confettiCanvas.clientWidth/2,confettiCanvas.clientHeight*.56));confettiCanvas.addEventListener('pointerdown',event=>{const rect=confettiCanvas.getBoundingClientRect();burstConfetti(event.clientX-rect.left,event.clientY-rect.top);});document.querySelector('#confettiClear').addEventListener('click',()=>{confettiPieces=[];cancelAnimationFrame(confettiFrame);drawConfetti();announce('Confetti canvas cleared');});confettiAmount.addEventListener('input',()=>{document.querySelector('#confettiAmountValue').textContent=confettiAmount.value;});confettiGravity.addEventListener('input',()=>{document.querySelector('#confettiGravityValue').textContent=confettiGravity.value;announce('Confetti Gravity '+confettiGravity.value);});addEventListener('resize',sizeConfettiCanvas,{passive:true});sizeConfettiCanvas();
/* 11DZ_CORE_SCRIPT_END */
const workflowBridgeSpec={"name":"creative-effects-confetti-burst","selector":"[data-core-bridge=\"creative-effects-confetti-burst\"]","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+' · Core Version '+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 workflowSpatial=document.querySelector('#workflowSpatial');const workflowSpatialCore=document.querySelector('#workflowCore');const workflowSpatialWidth=document.querySelector('#workflowSpatialWidth');const workflowSpatialZoom=document.querySelector('#workflowSpatialZoom');const workflowSpatialHandle=document.querySelector('#workflowSpatialHandle');const workflowSpatialState={width:64,zoom:1,dragging:false};function workflowSpatialDrive(){workflowSpatial.style.setProperty('--spatial-width',workflowSpatialState.width+'%');workflowSpatial.style.setProperty('--spatial-zoom',String(workflowSpatialState.zoom));workflowSpatialWidth.value=String(workflowSpatialState.width);workflowSpatialZoom.value=String(Math.round(workflowSpatialState.zoom*100));document.querySelector('#workflowSpatialWidthValue').textContent=workflowSpatialState.width+'%';document.querySelector('#workflowSpatialZoomValue').textContent=Math.round(workflowSpatialState.zoom*100)+'%';document.querySelector('#workflowSpatialStatus').textContent='width '+workflowSpatialState.width+'%, zoom '+Math.round(workflowSpatialState.zoom*100)+'%';announce('The Botanical Lab canvas has been rearranged');}workflowSpatialWidth.addEventListener('input',()=>{workflowSpatialState.width=Number(workflowSpatialWidth.value);workflowSpatialDrive();});workflowSpatialZoom.addEventListener('input',()=>{workflowSpatialState.zoom=Number(workflowSpatialZoom.value)/100;workflowSpatialDrive();});workflowSpatialHandle.addEventListener('pointerdown',event=>{workflowSpatialState.dragging=true;workflowSpatialHandle.setPointerCapture(event.pointerId);});workflowSpatialHandle.addEventListener('pointermove',event=>{if(!workflowSpatialState.dragging)return;const rect=workflowSpatial.getBoundingClientRect();workflowSpatialState.width=Math.max(38,Math.min(82,Math.round((event.clientX-rect.left)/rect.width*100)));workflowSpatialDrive();});workflowSpatialHandle.addEventListener('pointerup',event=>{workflowSpatialState.dragging=false;workflowSpatialHandle.releasePointerCapture(event.pointerId);});workflowSpatialHandle.addEventListener('wheel',event=>{event.preventDefault();workflowSpatialState.zoom=Math.max(.8,Math.min(1.2,workflowSpatialState.zoom+(event.deltaY<0?.05:-.05)));workflowSpatialDrive();},{passive:false});workflowSpatialHandle.addEventListener('keydown',event=>{if(!['ArrowLeft','ArrowRight'].includes(event.key))return;event.preventDefault();workflowSpatialState.width=Math.max(38,Math.min(82,workflowSpatialState.width+(event.key==='ArrowRight'?2:-2)));workflowSpatialDrive();});document.querySelector('#workflowSpatialApply').addEventListener('click',()=>{const bridge=workflowBridgeActivate();document.querySelector('#workflowSpatialStatus').textContent='Effect applied · Width '+workflowSpatialState.width+'%, zoom '+Math.round(workflowSpatialState.zoom*100)+'% · '+bridge.summary;announce(document.querySelector('#workflowSpatialStatus').textContent);});workflowSpatialDrive();
workflowBridgeReset();
  </script>
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