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

  scenes.push({
    id: "scene2",
    name: "Low-G terraces",
    config: {
      gravity: 0.65,
      spawnIntervalMs: 600,
      minChain: 3,
      palette: ["#fb7185", "#fbbf24", "#34d399", "#38bdf8"],
      ballRadius: 22,
      link: {
        stiffness: 0.6,
        lengthScale: 1,
        damping: 0.01,
        lineWidth: 4,
        rope: false,
        renderType: "spring",
        maxLengthMultiplier: 4.7,
      },
    },
    createBodies: (w, h) => {
      const floorHeight = Math.max(70, h * 0.12);
      const wallThickness = Math.max(32, w * 0.05);
      const wallHeight = h * 1.8;
      const ledgeHeight = Math.max(14, h * 0.022);
      const leftWidth = Math.max(160, w * 0.18);
      const midWidth = Math.max(190, w * 0.26);
      const rightWidth = Math.max(150, w * 0.18);
      return [
        Bodies.rectangle(
          w / 2,
          h + floorHeight / 2,
          w + wallThickness * 2,
          floorHeight,
          {
            isStatic: true,
            restitution: 0.9,
            render: { fillStyle: "#0ea5e9", strokeStyle: "#0ea5e9" },
          },
        ),
        Bodies.rectangle(
          -wallThickness / 2,
          h / 2,
          wallThickness,
          wallHeight,
          {
            isStatic: true,
            render: { fillStyle: "#7c3aed", strokeStyle: "#7c3aed" },
          },
        ),
        Bodies.rectangle(
          w + wallThickness / 2,
          h / 2,
          wallThickness,
          wallHeight,
          {
            isStatic: true,
            render: { fillStyle: "#7c3aed", strokeStyle: "#7c3aed" },
          },
        ),
        Bodies.rectangle(w * 0.2, h * 0.45, leftWidth, ledgeHeight, {
          isStatic: true,
          angle: 0.08,
          render: { fillStyle: "#f97316", strokeStyle: "#f97316" },
        }),
        Bodies.rectangle(w * 0.5, h * 0.6, midWidth, ledgeHeight, {
          isStatic: true,
          angle: -0.04,
          render: { fillStyle: "#14b8a6", strokeStyle: "#14b8a6" },
        }),
        Bodies.rectangle(w * 0.8, h * 0.42, rightWidth, ledgeHeight, {
          isStatic: true,
          angle: 0.14,
          render: { fillStyle: "#c084fc", strokeStyle: "#c084fc" },
        }),
      ];
    },
  });
})();