(() => {
  const { Bodies } = Matter;
  const scenes =
    (window.PhysilinksSceneDefs = window.PhysilinksSceneDefs || []);

  scenes.push({
    id: "scene1",
    name: "Balanced",
    config: {
      gravity: 0.88,
      spawnIntervalMs: 520,
      minChain: 3,
      palette: ["#ff595e", "#ffca3a", "#8ac926", "#1982c4", "#6a4c93"],
      ballRadius: 38,
      link: {
        stiffness: 0.85,
        lengthScale: 1.05,
        damping: 0.08,
        lineWidth: 3,
        rope: true,
        renderType: "line",
        maxLengthMultiplier: 3.2,
      },
    },
    createBodies: (w, h) => {
      const floorHeight = Math.max(60, h * 0.12);
      const wallThickness = Math.max(32, w * 0.05);
      const wallHeight = h * 1.6;
      const platformHeight = Math.max(14, h * 0.025);
      const smallPlatformWidth = Math.max(140, w * 0.18);
      const largePlatformWidth = Math.max(180, w * 0.22);
      return [
        Bodies.rectangle(
          w / 2,
          h + floorHeight / 2,
          w + wallThickness * 2,
          floorHeight,
          {
            isStatic: true,
            restitution: 0.8,
            render: { fillStyle: "#0ea5e9", strokeStyle: "#0ea5e9" },
          },
        ),
        Bodies.rectangle(
          -wallThickness / 2,
          h / 2,
          wallThickness,
          wallHeight,
          {
            isStatic: true,
            render: { fillStyle: "#f97316", strokeStyle: "#f97316" },
          },
        ),
        Bodies.rectangle(
          w + wallThickness / 2,
          h / 2,
          wallThickness,
          wallHeight,
          {
            isStatic: true,
            render: { fillStyle: "#f97316", strokeStyle: "#f97316" },
          },
        ),
        Bodies.rectangle(
          w * 0.25,
          h * 0.55,
          smallPlatformWidth,
          platformHeight,
          {
            isStatic: true,
            angle: -0.3,
            render: { fillStyle: "#22c55e", strokeStyle: "#22c55e" },
            plugin: { rotSpeed: 0.1 },
          },
        ),
        Bodies.rectangle(
          w * 0.7,
          h * 0.4,
          largePlatformWidth,
          platformHeight * 1.2,
          {
            isStatic: true,
            angle: 0.26,
            render: { fillStyle: "#a855f7", strokeStyle: "#a855f7" },
            plugin: { rotSpeed: -0.08 },
          },
        ),
      ];
    },
  });
})();