Night Garden Confetti Burst Effect
Complete a confetti burst effect in a night garden scene: includes real content, interactive controls, clear state feedback, and responsive layouts.
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<title>Night Garden Confetti Burst Effect</title>
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<header class="mast"><div><span class="eyebrow">dashboard / Confetti Burst Effect / INTERMEDIATE</span><h1>Night Garden Confetti Burst Effect</h1><p class="intro">Complete a confetti burst effect in a night garden scene: includes real content, interactive controls, clear state feedback, and responsive layouts.</p></div><span class="scenario">Night Garden</span></header>
<div class="composition-index"><section class="demo" aria-label="Night garden confetti burst effect interactive area"><div class="workflow-session"><header class="session-command"><div><span class="eyebrow">Night Garden SESSION</span><h2>Garden Observation Timing Station</h2></div><output id="workflowSessionClock">00:45</output><label>Round Duration<input id="workflowSessionLength" type="range" min="15" max="90" step="15" value="45"><span>sec</span></label><button id="workflowSessionToggle" class="action primary" type="button">Start monitoring</button></header><div id="workflowSessionProgress" role="progressbar" aria-label="Garden Observation Progress" 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-confetti-burst --><div class="confetti-lab"><section class="confetti-stage"><canvas id="confettiCanvas" width="960" height="460" aria-label="Night Garden Confetti Burst Canvas" aria-describedby="confettiHelp">Your browser does not support Canvas.</canvas><div><span>Night Garden</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><footer class="session-log"><strong id="workflowSessionScore">0 interaction checkpoints</strong><ol id="workflowSessionLaps" aria-label="Round Log"></ol></footer></div><p id="status" class="status" role="status" aria-live="polite"></p></section><aside class="index-mark" aria-hidden="true"><strong>05</strong><span>Night Garden FIELD INDEX</span></aside></div>
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<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 */
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workflowBridgeReset();
</script>
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