{
  "version": 3,
  "sources": ["../../../static_src/js/pages/lineup-constellation.js"],
  "sourcesContent": ["// lineup-constellation.js \u2014 line-up SEM hor\u00E1rio: o evento no meio e os artistas\n// flutuando ligados a ele por fios brilhantes (rosa \u2192 violeta), com um raiozinho de\n// energia viajando do centro pra cada artista. Read-only (n\u00E3o seleciona nada).\n// Espelha a constela\u00E7\u00E3o do p\u00FAblico. CSP-safe: posi\u00E7\u00E3o via CSSOM, zero inline.\nconst PINK = [255, 45, 155];\nconst VIOLET = [162, 107, 255];\n\nfunction mix(t) {\n  t = t < 0 ? 0 : t > 1 ? 1 : t;\n  const r = (PINK[0] + (VIOLET[0] - PINK[0]) * t) | 0;\n  const g = (PINK[1] + (VIOLET[1] - PINK[1]) * t) | 0;\n  const b = (PINK[2] + (VIOLET[2] - PINK[2]) * t) | 0;\n  return `rgb(${r},${g},${b})`;\n}\n\nfunction init() {\n  const root = document.querySelector('[data-lineup-constellation]');\n  if (!root) return;\n  const canvas = root.querySelector('[data-lc-lines]');\n  const ctx = canvas.getContext('2d');\n  const center = root.querySelector('[data-center]');\n  const reduce = matchMedia('(prefers-reduced-motion: reduce)').matches;\n\n  const items = [...root.querySelectorAll('[data-node]')].map((el, i) => ({\n    el,\n    phase: i * 0.7,\n    pulse: (i % 5) / 5, // desencontra os raios de energia entre os fios\n    bx: 0,\n    by: 0,\n    x: 0,\n    y: 0,\n  }));\n\n  let W = 0;\n  let H = 0;\n  let cx = 0;\n  let cy = 0;\n  let t = 0;\n  let raf = 0;\n\n  function layout() {\n    const dpr = Math.min(window.devicePixelRatio || 1, 2);\n    W = root.clientWidth;\n    H = root.clientHeight;\n    canvas.width = Math.round(W * dpr);\n    canvas.height = Math.round(H * dpr);\n    ctx.setTransform(dpr, 0, 0, dpr, 0, 0);\n    cx = W / 2;\n    cy = H / 2;\n    center.style.left = `${cx}px`;\n    center.style.top = `${cy}px`;\n    // phyllotaxis (girassol): espalha bonito e sem sobrepor demais\n    const n = items.length;\n    const golden = Math.PI * (3 - Math.sqrt(5));\n    const maxR = Math.min(W, H) * 0.42;\n    const minR = Math.min(W, H) * 0.16;\n    items.forEach((it, i) => {\n      const frac = n > 1 ? i / (n - 1) : 0;\n      const r = minR + (maxR - minR) * Math.sqrt(frac);\n      const a = i * golden;\n      it.bx = cx + Math.cos(a) * r;\n      it.by = cy + Math.sin(a) * r * 0.82;\n    });\n  }\n\n  function frame() {\n    t += 0.016;\n    ctx.clearRect(0, 0, W, H);\n    for (const it of items) {\n      it.x = it.bx + (reduce ? 0 : Math.cos(t * 0.6 + it.phase) * 6);\n      it.y = it.by + (reduce ? 0 : Math.sin(t * 0.5 + it.phase) * 6);\n      it.el.style.left = `${it.x}px`;\n      it.el.style.top = `${it.y}px`;\n      const col = mix((it.x / W + it.y / H) / 2);\n      // fio base\n      ctx.strokeStyle = col;\n      ctx.shadowColor = col;\n      ctx.shadowBlur = 6;\n      ctx.globalAlpha = 0.22 + Math.sin(t * 2 + it.phase) * 0.06;\n      ctx.lineWidth = 1;\n      ctx.beginPath();\n      ctx.moveTo(cx, cy);\n      ctx.lineTo(it.x, it.y);\n      ctx.stroke();\n      // raiozinho de energia viajando do centro pro artista\n      if (!reduce) {\n        const p = ((t * 0.45 + it.pulse) % 1);\n        const ex = cx + (it.x - cx) * p;\n        const ey = cy + (it.y - cy) * p;\n        ctx.globalAlpha = 1 - Math.abs(p - 0.5) * 1.4; // some nas pontas\n        ctx.shadowBlur = 12;\n        ctx.fillStyle = col;\n        ctx.beginPath();\n        ctx.arc(ex, ey, 2.4, 0, Math.PI * 2);\n        ctx.fill();\n      }\n    }\n    ctx.shadowBlur = 0;\n    ctx.globalAlpha = 1;\n    if (!reduce) raf = requestAnimationFrame(frame);\n  }\n\n  let rt;\n  window.addEventListener('resize', () => {\n    clearTimeout(rt);\n    rt = setTimeout(() => {\n      layout();\n      if (reduce) frame();\n    }, 150);\n  });\n\n  layout();\n  frame();\n  document.addEventListener('visibilitychange', () => {\n    cancelAnimationFrame(raf);\n    if (!document.hidden && !reduce) frame();\n  });\n}\n\ninit();\n"],
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