| 1 | (function(){ |
| 2 | window.HPX = window.HPX || {}; |
| 3 | window.HPX['counter-explosion'] = function(el){ |
| 4 | const U = window.HPX._u; |
| 5 | if (getComputedStyle(el).position === 'static') el.style.position = 'relative'; |
| 6 | const target = parseInt(el.getAttribute('data-fx-to') || '2400', 10); |
| 7 | const k = U.canvas(el), ctx = k.ctx; |
| 8 | const pal = U.palette(el); |
| 9 | // number overlay |
| 10 | const num = document.createElement('div'); |
| 11 | num.style.cssText = 'position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font:900 120px system-ui,sans-serif;color:var(--text-1,#fff);pointer-events:none;text-shadow:0 4px 40px rgba(124,92,255,0.5);'; |
| 12 | num.textContent = '0'; |
| 13 | el.appendChild(num); |
| 14 | let parts = []; |
| 15 | let state = 'count'; // count | burst | hold |
| 16 | let stateT = 0; |
| 17 | let value = 0; |
| 18 | let cycle = 0; |
| 19 | const burst = () => { |
| 20 | const cx = k.w/2, cy = k.h/2; |
| 21 | for (let i=0;i<120;i++){ |
| 22 | const a = Math.random()*Math.PI*2; |
| 23 | const s = U.rand(120, 400); |
| 24 | parts.push({x:cx,y:cy,vx:Math.cos(a)*s,vy:Math.sin(a)*s,life:1,r:U.rand(2,5),c:pal[(Math.random()*pal.length)|0]}); |
| 25 | } |
| 26 | }; |
| 27 | const stop = U.loop(() => { |
| 28 | ctx.clearRect(0,0,k.w,k.h); |
| 29 | const dt = 1/60; |
| 30 | stateT += dt; |
| 31 | if (state === 'count'){ |
| 32 | const dur = 2.2; |
| 33 | const p = Math.min(1, stateT/dur); |
| 34 | const eased = 1 - Math.pow(1-p,3); |
| 35 | value = Math.round(target*eased); |
| 36 | num.textContent = value.toLocaleString(); |
| 37 | if (p >= 1){ state='burst'; stateT=0; burst(); } |
| 38 | } else if (state === 'burst'){ |
| 39 | if (stateT > 0.05 && stateT < 0.3 && parts.length < 200) {} |
| 40 | if (stateT > 2.5){ state='hold'; stateT=0; } |
| 41 | } else if (state === 'hold'){ |
| 42 | if (stateT > 1.5){ |
| 43 | state='count'; stateT=0; value=0; num.textContent='0'; cycle++; |
| 44 | } |
| 45 | } |
| 46 | parts = parts.filter(p => p.life > 0); |
| 47 | for (const p of parts){ |
| 48 | p.vy += 260*dt; p.vx *= 0.985; p.vy *= 0.985; |
| 49 | p.x += p.vx*dt; p.y += p.vy*dt; p.life -= 0.01; |
| 50 | ctx.globalAlpha = Math.max(0,p.life); |
| 51 | ctx.fillStyle = p.c; |
| 52 | ctx.beginPath(); ctx.arc(p.x,p.y,p.r,0,Math.PI*2); ctx.fill(); |
| 53 | } |
| 54 | ctx.globalAlpha = 1; |
| 55 | }); |
| 56 | return { stop(){ stop(); k.destroy(); if (num.parentNode) num.parentNode.removeChild(num); } }; |
| 57 | }; |
| 58 | })(); |
| 59 |