Update index.html
Browse files- index.html +158 -18
index.html
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<html>
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</html>
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0" />
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<title>Dark‑Matter Hybrid Simulation (Pyodide‑powered)</title>
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<style>
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:root{font-family:system-ui,sans-serif;background:#0b0e19;color:#e4e7ef}
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h1{text-align:center;margin:0.5rem 0;font-size:1.4rem}
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#controls{display:flex;justify-content:center;gap:1rem;margin:0.5rem 0;flex-wrap:wrap}
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.ctrl{background:#1c2135;border:1px solid #2f3653;border-radius:0.5rem;padding:0.3rem 0.6rem;font-size:0.9rem;cursor:pointer;transition:background .3s}
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.ctrl:hover{background:#2b3351}
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#sim{display:block;margin:0 auto 1rem;border:1px solid #222b44;background:#000;border-radius:0.5rem}
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label{font-size:0.8rem}
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input[type=range]{width:8rem}
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#status{font-size:0.8rem;text-align:center;margin-bottom:0.4rem;color:#9ac1ff}
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</style>
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<!-- Pyodide -->
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<script src="https://cdn.jsdelivr.net/pyodide/v0.25.0/full/pyodide.js"></script>
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</head>
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<body>
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<h1>Dark‑Matter Hybrid (Classical + Quantum) Toy Model</h1>
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<canvas id="sim" width="600" height="600"></canvas>
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<div id="status">Pyodide loading…</div>
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<div id="controls">
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<button id="toggle" class="ctrl" disabled>▶︎ Start</button>
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<button id="reset" class="ctrl" disabled>⎌ Reset</button>
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<button id="qView" class="ctrl" disabled>🌌 Quantum View</button>
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<label>Particles
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<input id="count" type="range" min="100" max="1000" step="100" value="500" disabled/>
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<span id="countVal">500</span>
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</label>
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<label>Gravity
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<input id="grav" type="range" min="0.1" max="2" step="0.1" value="1" disabled/>
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<span id="gravVal">1.0</span>
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</label>
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</div>
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<script>
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/* ---------------- Pyodide bootstrap ---------------- */
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let pyodideReady = loadPyodide({indexURL:"https://cdn.jsdelivr.net/pyodide/v0.25.0/full/"}).then(async pyodide=>{
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await pyodide.loadPackage(["numpy"]);
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// define a tiny Schrödinger‑like density generator on the Python side
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const pyCode = `
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import json, math, numpy as np
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def quantum_density(size:int=64):
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# 2‑D Gaussian wave‑packet as stand‑in for toy quantum result
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x = np.linspace(-3,3,size)
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X,Y = np.meshgrid(x,x)
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Z = np.exp(-(X**2+Y**2))
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Z /= Z.max() # normalize 0‑1
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return json.dumps(Z.tolist())
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`;
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pyodide.runPython(pyCode);
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return pyodide;
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});
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async function getQuantumDensity(size=64){
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const pyodide = await pyodideReady;
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const jsonStr = await pyodide.runPythonAsync(`quantum_density(${size})`);
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return JSON.parse(jsonStr);
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}
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/* ---------------- Canvas & Globals ---------------- */
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const canvas = document.getElementById("sim");
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const ctx = canvas.getContext("2d");
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const W = canvas.width, H = canvas.height;
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const qCanvas = document.createElement("canvas");
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qCanvas.width=W; qCanvas.height=H;
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const qCtx = qCanvas.getContext("2d");
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const $ = id=>document.getElementById(id);
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const softening=4;
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let G=1, particles=[], running=false, rafId;
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let quantumOn=false, densityLoaded=false;
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const status = $("status");
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const rand = (min,max)=>Math.random()*(max-min)+min;
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const makeParticle = ()=>({x:rand(0,W),y:rand(0,H),vx:rand(-0.1,0.1),vy:rand(-0.1,0.1),m:1+Math.random()*0.5});
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function init(n=500){particles = Array.from({length:n}, makeParticle); densityLoaded=false; draw();}
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function update(dt){
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const n=particles.length;
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for(let i=0;i<n;i++){
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const p=particles[i]; let ax=0, ay=0;
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for(let j=0;j<n;j++) if(i!==j){
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const q=particles[j]; const dx=q.x-p.x, dy=q.y-p.y; const r2=dx*dx+dy*dy+softening; const inv=Math.pow(r2,-1.5);
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ax+=G*q.m*dx*inv; ay+=G*q.m*dy*inv;
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}
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p.vx+=ax*dt; p.vy+=ay*dt;
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}
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for(const p of particles){p.x=(p.x+p.vx*dt+W)%W; p.y=(p.y+p.vy*dt+H)%H;}
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}
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function draw(){
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ctx.fillStyle="black"; ctx.fillRect(0,0,W,H);
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ctx.fillStyle="white"; for(const p of particles) ctx.fillRect(p.x,p.y,2,2);
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if(quantumOn && densityLoaded) ctx.drawImage(qCanvas,0,0);
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}
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function step(){update(0.5); draw(); if(running) rafId=requestAnimationFrame(step);}
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function buildDensityTexture(grid){
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const size=grid.length; const scale=W/size; const img=qCtx.createImageData(W,H);
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for(let i=0;i<size;i++){
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for(let j=0;j<size;j++){
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const val=Math.min(grid[i][j]*255*20,255);
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for(let dx=0;dx<scale;dx++){
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for(let dy=0;dy<scale;dy++){
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const x=j*scale+dx, y=i*scale+dy, idx=(y*W+x)*4;
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img.data[idx]=0; img.data[idx+1]=val; img.data[idx+2]=255; img.data[idx+3]=Math.min(val+30,255);
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}
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}
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}
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}
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qCtx.putImageData(img,0,0);
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densityLoaded=true; draw();
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}
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async function computeQuantum(){
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status.textContent="Computing quantum density…";
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try{
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const grid=await getQuantumDensity(64);
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buildDensityTexture(grid);
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status.textContent="Quantum density ready ✔";
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}catch(e){
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console.error(e);
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status.textContent="Quantum compute error";
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quantumOn=false;
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$("qView").textContent="🌌 Quantum View";
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}
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}
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/* ---------------- UI Wiring (activated after Pyodide ready) ---------------- */
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pyodideReady.then(()=>{
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status.textContent="Ready";
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["toggle","reset","qView","count","grav"].forEach(id=>$(id).disabled=false);
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$("toggle").onclick=()=>{running=!running; $("toggle").textContent=running?"❚❚ Pause":"▶︎ Start"; if(running) step(); else cancelAnimationFrame(rafId);} ;
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$("reset").onclick=()=>init(+$("count").value);
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$("count").oninput=e=>$("countVal").textContent=e.target.value;
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$("count").onchange=()=>init(+$("count").value);
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$("grav").oninput=e=>{G=+e.target.value; $("gravVal").textContent=G.toFixed(1);} ;
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$("qView").onclick=()=>{
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quantumOn=!quantumOn;
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$("qView").textContent=quantumOn?"🖥 Classical View":"🌌 Quantum View";
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if(quantumOn && !densityLoaded) computeQuantum(); else draw();
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};
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init();
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});
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</script>
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</body>
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</html>
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