{"ast":null,"code":"'use strict';\n\nfunction stiffnessFromOrigamiValue(oValue) {\n  return (oValue - 30) * 3.62 + 194;\n}\n\nfunction dampingFromOrigamiValue(oValue) {\n  return (oValue - 8) * 3 + 25;\n}\n\nfunction fromOrigamiTensionAndFriction(tension, friction) {\n  return {\n    stiffness: stiffnessFromOrigamiValue(tension),\n    damping: dampingFromOrigamiValue(friction)\n  };\n}\n\nfunction fromBouncinessAndSpeed(bounciness, speed) {\n  function normalize(value, startValue, endValue) {\n    return (value - startValue) / (endValue - startValue);\n  }\n\n  function projectNormal(n, start, end) {\n    return start + n * (end - start);\n  }\n\n  function linearInterpolation(t, start, end) {\n    return t * end + (1 - t) * start;\n  }\n\n  function quadraticOutInterpolation(t, start, end) {\n    return linearInterpolation(2 * t - t * t, start, end);\n  }\n\n  function b3Friction1(x) {\n    return 0.0007 * Math.pow(x, 3) - 0.031 * Math.pow(x, 2) + 0.64 * x + 1.28;\n  }\n\n  function b3Friction2(x) {\n    return 0.000044 * Math.pow(x, 3) - 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30) * 3.62 + 194;\n}\n\nfunction dampingFromOrigamiValue(oValue) {\n  return (oValue - 8) * 3 + 25;\n}\n\nfunction fromOrigamiTensionAndFriction(tension, friction) {\n  return {\n    stiffness: stiffnessFromOrigamiValue(tension),\n    damping: dampingFromOrigamiValue(friction)\n  };\n}\n\nfunction fromBouncinessAndSpeed(bounciness, speed) {\n  function normalize(value, startValue, endValue) {\n    return (value - startValue) / (endValue - startValue);\n  }\n\n  function projectNormal(n, start, end) {\n    return start + n * (end - start);\n  }\n\n  function linearInterpolation(t, start, end) {\n    return t * end + (1 - t) * start;\n  }\n\n  function quadraticOutInterpolation(t, start, end) {\n    return linearInterpolation(2 * t - t * t, start, end);\n  }\n\n  function b3Friction1(x) {\n    return 0.0007 * Math.pow(x, 3) - 0.031 * Math.pow(x, 2) + 0.64 * x + 1.28;\n  }\n\n  function b3Friction2(x) {\n    return 0.000044 * Math.pow(x, 3) - 0.006 * Math.pow(x, 2) + 0.36 * x + 2;\n  }\n\n  function b3Friction3(x) {\n    return 0.00000045 * Math.pow(x, 3) - 0.000332 * Math.pow(x, 2) + 0.1078 * x + 5.84;\n  }\n\n  function b3Nobounce(tension) {\n    if (tension <= 18) {\n      return b3Friction1(tension);\n    } else if (tension > 18 && tension <= 44) {\n      return b3Friction2(tension);\n    } else {\n      return b3Friction3(tension);\n    }\n  }\n\n  var b = normalize(bounciness / 1.7, 0, 20);\n  b = projectNormal(b, 0, 0.8);\n  var s = normalize(speed / 1.7, 0, 20);\n  var bouncyTension = projectNormal(s, 0.5, 200);\n  var bouncyFriction = quadraticOutInterpolation(b, b3Nobounce(bouncyTension), 0.01);\n  return {\n    stiffness: stiffnessFromOrigamiValue(bouncyTension),\n    damping: dampingFromOrigamiValue(bouncyFriction)\n  };\n}\n\nexport default {\n  fromOrigamiTensionAndFriction: fromOrigamiTensionAndFriction,\n  fromBouncinessAndSpeed: fromBouncinessAndSpeed\n};"]},"metadata":{},"sourceType":"module"}