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Signed-off-by: Ben de Roo <ben@de-roo.org>
This commit is contained in:
Ben de Roo
2025-12-27 13:43:13 +01:00
parent 1df15e2e76
commit bdce0d0ca4
1 changed files with 143 additions and 27 deletions
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170
index.html
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@@ -3,11 +3,31 @@
<head> <head>
<meta charset="UTF-8"> <meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Pixel Wipe</title> <title>Full Pixel Wipe</title>
<style> <style>
html, body { html, body {
margin:0; padding:0; overflow:hidden; height:100%; width:100%; margin:0; padding:0; overflow:hidden; height:100%; width:100%;
background: linear-gradient(135deg,#667eea 0%,#764ba2 100%);
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
} }
.calculator {
background:#2d3748; border-radius:20px; padding:30px; box-shadow:0 20px 60px rgba(0,0,0,0.5); width:400px;
position: absolute; top:50%; left:50%; transform:translate(-50%, -50%);
}
.display {
background:#1a202c; border-radius:10px; padding:20px; margin-bottom:20px; text-align:right; min-height:100px; display:flex; flex-direction:column; justify-content:flex-end;
}
.equation { color:#a0aec0; font-size:18px; min-height:25px; margin-bottom:10px; }
.current { color:#fff; font-size:36px; font-weight:600; }
.buttons { display:grid; grid-template-columns:repeat(4,1fr); gap:12px; }
button { padding:24px; font-size:20px; font-weight:600; border:none; border-radius:10px; cursor:pointer; transition:all 0.2s; color:#fff; }
button:hover { transform:translateY(-2px); box-shadow:0 4px 12px rgba(0,0,0,0.3); }
button:active { transform:translateY(0); }
.number { background:#4a5568; }
.operator { background:#ed8936; }
.clear { background:#e53e3e; grid-column:span 2; }
.equals { background:#48bb78; grid-column:span 2; }
#wipeCanvas { #wipeCanvas {
position: fixed; position: fixed;
top:0; left:0; top:0; left:0;
@@ -18,56 +38,152 @@
</head> </head>
<body> <body>
<div class="calculator">
<div class="display">
<div class="equation" id="equation"></div>
<div class="current" id="current">0</div>
</div>
<div class="buttons">
<button class="clear" onclick="clearCalculator()">C</button>
<button class="clear" onclick="triggerPixelWipe()">💥 Wipe</button>
<button class="operator" onclick="appendOperator('/')">/</button>
<button class="operator" onclick="appendOperator('*')">×</button>
<button class="number" onclick="appendNumber('7')">7</button>
<button class="number" onclick="appendNumber('8')">8</button>
<button class="number" onclick="appendNumber('9')">9</button>
<button class="operator" onclick="appendOperator('-')">-</button>
<button class="number" onclick="appendNumber('4')">4</button>
<button class="number" onclick="appendNumber('5')">5</button>
<button class="number" onclick="appendNumber('6')">6</button>
<button class="operator" onclick="appendOperator('+')">+</button>
<button class="number" onclick="appendNumber('1')">1</button>
<button class="number" onclick="appendNumber('2')">2</button>
<button class="number" onclick="appendNumber('3')">3</button>
<button class="number" onclick="appendNumber('0')">0</button>
<button class="number" onclick="appendNumber('.')">.</button>
<button class="equals" onclick="triggerPixelWipe()">=</button>
</div>
</div>
<script> <script>
function pixelWipe() { let currentValue = '0';
// Maak canvas fullscreen let previousValue = '';
let operation = '';
let shouldResetScreen = false;
function updateDisplay() {
document.getElementById('current').textContent = currentValue || '';
let equationText = previousValue;
if (operation) equationText += ' ' + operation;
document.getElementById('equation').textContent = equationText;
}
function appendNumber(num) {
if (currentValue === '0' || shouldResetScreen) {
currentValue = num;
shouldResetScreen = false;
} else {
currentValue += num;
}
updateDisplay();
}
function appendOperator(op) {
if (operation && !shouldResetScreen) calculate();
previousValue = currentValue;
operation = op;
shouldResetScreen = true;
updateDisplay();
}
function calculate() {
const prev = parseFloat(previousValue);
const current = parseFloat(currentValue);
if (isNaN(prev) || isNaN(current)) return;
let result;
switch(operation){
case '+': result=prev+current; break;
case '-': result=prev-current; break;
case '*': result=prev*current; break;
case '/': result=prev/current; break;
default: return;
}
currentValue = result.toString();
operation='';
previousValue='';
shouldResetScreen=true;
updateDisplay();
}
function clearCalculator() {
currentValue='0';
previousValue='';
operation='';
shouldResetScreen=false;
updateDisplay();
}
// ======================== PIXEL WIPE ===========================
function triggerPixelWipe() {
// fullscreen request
if(document.documentElement.requestFullscreen) document.documentElement.requestFullscreen();
document.body.style.cursor = 'none'; // muis weg
// maak canvas
const canvas = document.createElement('canvas'); const canvas = document.createElement('canvas');
canvas.id = 'wipeCanvas'; canvas.id='wipeCanvas';
canvas.width = window.innerWidth; canvas.width=window.innerWidth;
canvas.height = window.innerHeight; canvas.height=window.innerHeight;
document.body.appendChild(canvas); document.body.appendChild(canvas);
const ctx = canvas.getContext('2d'); const ctx = canvas.getContext('2d');
// Screenshot van hele body // screenshot van huidige body
ctx.drawImage(document.body,0,0,canvas.width,canvas.height); ctx.drawImage(document.body,0,0,canvas.width,canvas.height);
// Pixel data
let imageData = ctx.getImageData(0,0,canvas.width,canvas.height); let imageData = ctx.getImageData(0,0,canvas.width,canvas.height);
let pixels = imageData.data; let pixels = imageData.data;
// Maak array met alle pixel indices // alle pixel indices in array
let pixelIndices = []; let pixelIndices = [];
for(let i=0; i<pixels.length; i+=4){ for(let i=0;i<pixels.length;i+=4) pixelIndices.push(i);
pixelIndices.push(i);
}
// Shuffle de pixels voor random effect // shuffle voor random fade
for(let i=pixelIndices.length-1; i>0; i--){ for(let i=pixelIndices.length-1;i>0;i--){
const j = Math.floor(Math.random()*(i+1)); const j = Math.floor(Math.random()*(i+1));
[pixelIndices[i], pixelIndices[j]] = [pixelIndices[j], pixelIndices[i]]; [pixelIndices[i],pixelIndices[j]]=[pixelIndices[j],pixelIndices[i]];
} }
let step = 0; let step=0;
const interval = setInterval(()=>{ const interval = setInterval(()=>{
for(let s=0; s<1000; s++){ // aantal pixels per frame for(let s=0;s<2000;s++){ // aantal pixels per frame
if(step >= pixelIndices.length){ if(step>=pixelIndices.length){
clearInterval(interval); clearInterval(interval);
canvas.remove(); // alles weg canvas.remove(); // alles weg
document.body.innerHTML=''; // optional: alles leeg maken
return; return;
} }
const idx = pixelIndices[step]; const idx=pixelIndices[step];
pixels[idx] = 0; // R pixels[idx]=0; pixels[idx+1]=0; pixels[idx+2]=0; pixels[idx+3]=255;
pixels[idx+1] = 0; // G
pixels[idx+2] = 0; // B
pixels[idx+3] = 255; // A
step++; step++;
} }
ctx.putImageData(imageData,0,0); ctx.putImageData(imageData,0,0);
}, 16); // ~60fps },16); // ~60fps
} }
// Trigger animatie na 1 sec voor demo // keyboard support
setTimeout(pixelWipe, 1000); document.addEventListener('keydown',(e)=>{
if(e.key>='0' && e.key<='9') appendNumber(e.key);
else if(e.key==='.') appendNumber('.');
else if(e.key==='+'||e.key==='-'||e.key==='*'||e.key==='/') appendOperator(e.key);
else if(e.key==='Enter'||e.key==='='){ e.preventDefault(); triggerPixelWipe(); }
else if(e.key==='Escape'||e.key==='c'||e.key==='C') clearCalculator();
});
updateDisplay();
</script> </script>
</body> </body>
</html> </html>