| 1 | (function(){ |
| 2 | window.HPX = window.HPX || {}; |
| 3 | window.HPX['data-stream'] = function(el){ |
| 4 | const U = window.HPX._u; |
| 5 | const k = U.canvas(el), ctx = k.ctx; |
| 6 | const ac = U.accent(el,'#22d3ee'), ac2 = U.accent2(el,'#7c5cff'); |
| 7 | const rows = []; |
| 8 | const rh = 22; |
| 9 | const genRow = (y) => ({ |
| 10 | y, dir: Math.random()<0.5?-1:1, |
| 11 | speed: U.rand(30, 90), |
| 12 | offset: Math.random()*2000, |
| 13 | text: Array.from({length:120}, () => { |
| 14 | const r = Math.random(); |
| 15 | if (r<0.3) return Math.random()<0.5?'0':'1'; |
| 16 | if (r<0.6) return '0x' + Math.floor(Math.random()*256).toString(16).padStart(2,'0'); |
| 17 | return Math.random().toString(16).slice(2,6); |
| 18 | }).join(' ') |
| 19 | }); |
| 20 | const init = () => { |
| 21 | rows.length = 0; |
| 22 | const n = Math.ceil(k.h/rh); |
| 23 | for (let i=0;i<n;i++) rows.push(genRow(i*rh + rh*0.7)); |
| 24 | }; |
| 25 | init(); |
| 26 | let lh = k.h; |
| 27 | const stop = U.loop((t) => { |
| 28 | if (k.h!==lh){ init(); lh=k.h; } |
| 29 | ctx.fillStyle = 'rgba(5,8,14,0.35)'; |
| 30 | ctx.fillRect(0,0,k.w,k.h); |
| 31 | ctx.font = '13px ui-monospace,Menlo,monospace'; |
| 32 | for (let i=0;i<rows.length;i++){ |
| 33 | const r = rows[i]; |
| 34 | const x = r.dir>0 |
| 35 | ? ((t*r.speed + r.offset) % (k.w+400)) - 400 |
| 36 | : k.w - (((t*r.speed + r.offset) % (k.w+400)) - 400); |
| 37 | ctx.fillStyle = (i%3===0)?ac:ac2; |
| 38 | ctx.globalAlpha = 0.65 + (i%2)*0.3; |
| 39 | ctx.fillText(r.text, x, r.y); |
| 40 | } |
| 41 | ctx.globalAlpha = 1; |
| 42 | }); |
| 43 | return { stop(){ stop(); k.destroy(); } }; |
| 44 | }; |
| 45 | })(); |
| 46 |