{"version":3,"names":["SLOPE_FACTOR","VELOCITY_EPS","DERIVATIVE_EPS","rubberBandDecay","animation","now","config","lastTimestamp","startTimestamp","current","velocity","deltaTime","Math","min","clampIndex","abs","clamp","derivative","v","exp","deceleration","rubberBandFactor","springActive","velocityFactor"],"sources":["rubberBandDecay.ts"],"sourcesContent":["'use strict';\nimport type { RubberBandDecayConfig, InnerDecayAnimation } from './utils';\nimport { SLOPE_FACTOR, VELOCITY_EPS } from './utils';\n\nconst DERIVATIVE_EPS = 0.1;\n\nexport function rubberBandDecay(\n  animation: InnerDecayAnimation,\n  now: number,\n  config: RubberBandDecayConfig\n): boolean {\n  'worklet';\n  const { lastTimestamp, startTimestamp, current, velocity } = animation;\n\n  const deltaTime = Math.min(now - lastTimestamp, 64);\n  const clampIndex =\n    Math.abs(current - config.clamp[0]) < Math.abs(current - config.clamp[1])\n      ? 0\n      : 1;\n\n  let derivative = 0;\n  if (current < config.clamp[0] || current > config.clamp[1]) {\n    derivative = current - config.clamp[clampIndex];\n  }\n\n  const v =\n    velocity *\n      Math.exp(\n        -(1 - config.deceleration) * (now - startTimestamp) * SLOPE_FACTOR\n      ) -\n    derivative * config.rubberBandFactor;\n\n  if (Math.abs(derivative) > DERIVATIVE_EPS) {\n    animation.springActive = true;\n  } else if (animation.springActive) {\n    animation.current = config.clamp[clampIndex];\n    return true;\n  } else if (Math.abs(v) < VELOCITY_EPS) {\n    return true;\n  }\n\n  animation.current = current + (v * config.velocityFactor * deltaTime) / 1000;\n  animation.velocity = v;\n  animation.lastTimestamp = now;\n  return false;\n}\n"],"mappings":"AAAA,YAAY;;AAEZ,SAASA,YAAY,EAAEC,YAAY,QAAQ,SAAS;AAEpD,MAAMC,cAAc,GAAG,GAAG;AAE1B,OAAO,SAASC,eAAeA,CAC7BC,SAA8B,EAC9BC,GAAW,EACXC,MAA6B,EACpB;EACT,SAAS;;EACT,MAAM;IAAEC,aAAa;IAAEC,cAAc;IAAEC,OAAO;IAAEC;EAAS,CAAC,GAAGN,SAAS;EAEtE,MAAMO,SAAS,GAAGC,IAAI,CAACC,GAAG,CAACR,GAAG,GAAGE,aAAa,EAAE,EAAE,CAAC;EACnD,MAAMO,UAAU,GACdF,IAAI,CAACG,GAAG,CAACN,OAAO,GAAGH,MAAM,CAACU,KAAK,CAAC,CAAC,CAAC,CAAC,GAAGJ,IAAI,CAACG,GAAG,CAACN,OAAO,GAAGH,MAAM,CAACU,KAAK,CAAC,CAAC,CAAC,CAAC,GACrE,CAAC,GACD,CAAC;EAEP,IAAIC,UAAU,GAAG,CAAC;EAClB,IAAIR,OAAO,GAAGH,MAAM,CAACU,KAAK,CAAC,CAAC,CAAC,IAAIP,OAAO,GAAGH,MAAM,CAACU,KAAK,CAAC,CAAC,CAAC,EAAE;IAC1DC,UAAU,GAAGR,OAAO,GAAGH,MAAM,CAACU,KAAK,CAACF,UAAU,CAAC;EACjD;EAEA,MAAMI,CAAC,GACLR,QAAQ,GACNE,IAAI,CAACO,GAAG,CACN,EAAE,CAAC,GAAGb,MAAM,CAACc,YAAY,CAAC,IAAIf,GAAG,GAAGG,cAAc,CAAC,GAAGR,YAAY,CACnE,GACHiB,UAAU,GAAGX,MAAM,CAACe,gBAAgB;EAEtC,IAAIT,IAAI,CAACG,GAAG,CAACE,UAAU,CAAC,GAAGf,cAAc,EAAE;IACzCE,SAAS,CAACkB,YAAY,GAAG,IAAI;EAC/B,CAAC,MAAM,IAAIlB,SAAS,CAACkB,YAAY,EAAE;IACjClB,SAAS,CAACK,OAAO,GAAGH,MAAM,CAACU,KAAK,CAACF,UAAU,CAAC;IAC5C,OAAO,IAAI;EACb,CAAC,MAAM,IAAIF,IAAI,CAACG,GAAG,CAACG,CAAC,CAAC,GAAGjB,YAAY,EAAE;IACrC,OAAO,IAAI;EACb;EAEAG,SAAS,CAACK,OAAO,GAAGA,OAAO,GAAIS,CAAC,GAAGZ,MAAM,CAACiB,cAAc,GAAGZ,SAAS,GAAI,IAAI;EAC5EP,SAAS,CAACM,QAAQ,GAAGQ,CAAC;EACtBd,SAAS,CAACG,aAAa,GAAGF,GAAG;EAC7B,OAAO,KAAK;AACd"}