Add .gitignore to exclude all node packages and lock files

2026-02-23 21:56:04 -05:00
parent faae96c9ed
commit dcc5c6c044
9747 changed files with 1555105 additions and 2 deletions
@@ -0,0 +1,113 @@
+"use strict";
+// Taken from https://github.com/facebook/react-native/blob/0b9ea60b4fee8cacc36e7160e31b91fc114dbc0d/Libraries/Animated/src/bezier.js
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.bezier = bezier;
+const NEWTON_ITERATIONS = 4;
+const NEWTON_MIN_SLOPE = 0.001;
+const SUBDIVISION_PRECISION = 0.0000001;
+const SUBDIVISION_MAX_ITERATIONS = 10;
+const kSplineTableSize = 11;
+const kSampleStepSize = 1.0 / (kSplineTableSize - 1.0);
+const float32ArraySupported = typeof Float32Array === 'function';
+function a(aA1, aA2) {
+    return 1.0 - 3.0 * aA2 + 3.0 * aA1;
+}
+function b(aA1, aA2) {
+    return 3.0 * aA2 - 6.0 * aA1;
+}
+function c(aA1) {
+    return 3.0 * aA1;
+}
+// Returns x(t) given t, x1, and x2, or y(t) given t, y1, and y2.
+function calcBezier(aT, aA1, aA2) {
+    return ((a(aA1, aA2) * aT + b(aA1, aA2)) * aT + c(aA1)) * aT;
+}
+// Returns dx/dt given t, x1, and x2, or dy/dt given t, y1, and y2.
+function getSlope(aT, aA1, aA2) {
+    return 3.0 * a(aA1, aA2) * aT * aT + 2.0 * b(aA1, aA2) * aT + c(aA1);
+}
+function binarySubdivide({ aX, _aA, _aB, mX1, mX2, }) {
+    let currentX;
+    let currentT;
+    let i = 0;
+    let aA = _aA;
+    let aB = _aB;
+    do {
+        currentT = aA + (aB - aA) / 2.0;
+        currentX = calcBezier(currentT, mX1, mX2) - aX;
+        if (currentX > 0.0) {
+            aB = currentT;
+        }
+        else {
+            aA = currentT;
+        }
+    } while (Math.abs(currentX) > SUBDIVISION_PRECISION &&
+        ++i < SUBDIVISION_MAX_ITERATIONS);
+    return currentT;
+}
+function newtonRaphsonIterate(aX, _aGuessT, mX1, mX2) {
+    let aGuessT = _aGuessT;
+    for (let i = 0; i < NEWTON_ITERATIONS; ++i) {
+        const currentSlope = getSlope(aGuessT, mX1, mX2);
+        if (currentSlope === 0.0) {
+            return aGuessT;
+        }
+        const currentX = calcBezier(aGuessT, mX1, mX2) - aX;
+        aGuessT -= currentX / currentSlope;
+    }
+    return aGuessT;
+}
+function bezier(mX1, mY1, mX2, mY2) {
+    if (!(mX1 >= 0 && mX1 <= 1 && mX2 >= 0 && mX2 <= 1)) {
+        throw new Error('bezier x values must be in [0, 1] range');
+    }
+    // Precompute samples table
+    const sampleValues = float32ArraySupported
+        ? new Float32Array(kSplineTableSize)
+        : new Array(kSplineTableSize);
+    if (mX1 !== mY1 || mX2 !== mY2) {
+        for (let i = 0; i < kSplineTableSize; ++i) {
+            sampleValues[i] = calcBezier(i * kSampleStepSize, mX1, mX2);
+        }
+    }
+    function getTForX(aX) {
+        let intervalStart = 0.0;
+        let currentSample = 1;
+        const lastSample = kSplineTableSize - 1;
+        for (; currentSample !== lastSample && sampleValues[currentSample] <= aX; ++currentSample) {
+            intervalStart += kSampleStepSize;
+        }
+        --currentSample;
+        // Interpolate to provide an initial guess for t
+        const dist = (aX - sampleValues[currentSample]) /
+            (sampleValues[currentSample + 1] - sampleValues[currentSample]);
+        const guessForT = intervalStart + dist * kSampleStepSize;
+        const initialSlope = getSlope(guessForT, mX1, mX2);
+        if (initialSlope >= NEWTON_MIN_SLOPE) {
+            return newtonRaphsonIterate(aX, guessForT, mX1, mX2);
+        }
+        if (initialSlope === 0.0) {
+            return guessForT;
+        }
+        return binarySubdivide({
+            aX,
+            _aA: intervalStart,
+            _aB: intervalStart + kSampleStepSize,
+            mX1,
+            mX2,
+        });
+    }
+    return function (x) {
+        if (mX1 === mY1 && mX2 === mY2) {
+            return x; // linear
+        }
+        // Because JavaScript number are imprecise, we should guarantee the extremes are right.
+        if (x === 0) {
+            return 0;
+        }
+        if (x === 1) {
+            return 1;
+        }
+        return calcBezier(getTForX(x), mY1, mY2);
+    };
+}