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resources/app/node_modules/@pixi/graphics/lib/utils/QuadraticUtils.mjs

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+import { curves } from "../const.mjs";
+class QuadraticUtils {
+  /**
+   * Calculate length of quadratic curve
+   * @see {@link http://www.malczak.linuxpl.com/blog/quadratic-bezier-curve-length/}
+   * for the detailed explanation of math behind this.
+   * @private
+   * @param fromX - x-coordinate of curve start point
+   * @param fromY - y-coordinate of curve start point
+   * @param cpX - x-coordinate of curve control point
+   * @param cpY - y-coordinate of curve control point
+   * @param toX - x-coordinate of curve end point
+   * @param toY - y-coordinate of curve end point
+   * @returns - Length of quadratic curve
+   */
+  static curveLength(fromX, fromY, cpX, cpY, toX, toY) {
+    const ax = fromX - 2 * cpX + toX, ay = fromY - 2 * cpY + toY, bx = 2 * cpX - 2 * fromX, by = 2 * cpY - 2 * fromY, a = 4 * (ax * ax + ay * ay), b = 4 * (ax * bx + ay * by), c = bx * bx + by * by, s = 2 * Math.sqrt(a + b + c), a2 = Math.sqrt(a), a32 = 2 * a * a2, c2 = 2 * Math.sqrt(c), ba = b / a2;
+    return (a32 * s + a2 * b * (s - c2) + (4 * c * a - b * b) * Math.log((2 * a2 + ba + s) / (ba + c2))) / (4 * a32);
+  }
+  /**
+   * Calculate the points for a quadratic bezier curve and then draws it.
+   * Based on: https://stackoverflow.com/questions/785097/how-do-i-implement-a-bezier-curve-in-c
+   * @private
+   * @param cpX - Control point x
+   * @param cpY - Control point y
+   * @param toX - Destination point x
+   * @param toY - Destination point y
+   * @param points - Points to add segments to.
+   */
+  static curveTo(cpX, cpY, toX, toY, points) {
+    const fromX = points[points.length - 2], fromY = points[points.length - 1], n = curves._segmentsCount(
+      QuadraticUtils.curveLength(fromX, fromY, cpX, cpY, toX, toY)
+    );
+    let xa = 0, ya = 0;
+    for (let i = 1; i <= n; ++i) {
+      const j = i / n;
+      xa = fromX + (cpX - fromX) * j, ya = fromY + (cpY - fromY) * j, points.push(
+        xa + (cpX + (toX - cpX) * j - xa) * j,
+        ya + (cpY + (toY - cpY) * j - ya) * j
+      );
+    }
+  }
+}
+export {
+  QuadraticUtils
+};
+//# sourceMappingURL=QuadraticUtils.mjs.map