Initial

resources/app/client-esm/canvas/edges/collision.mjs

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+/**
+ * A specialized object that contains the result of a collision in the context of the ClockwiseSweepPolygon.
+ * This class is not designed or intended for use outside of that context.
+ * @alias CollisionResult
+ */
+export default class CollisionResult {
+  constructor({target, collisions=[], cwEdges, ccwEdges, isBehind, isLimited, wasLimited}={}) {
+    this.target = target;
+    this.collisions = collisions;
+    this.cwEdges = cwEdges || new Set();
+    this.ccwEdges = ccwEdges || new Set();
+    this.isBehind = isBehind;
+    this.isLimited = isLimited;
+    this.wasLimited = wasLimited;
+  }
+
+  /**
+   * The vertex that was the target of this result
+   * @type {PolygonVertex}
+   */
+  target;
+
+  /**
+   * The array of collision points which apply to this result
+   * @type {PolygonVertex[]}
+   */
+  collisions;
+
+  /**
+   * The set of edges connected to the target vertex that continue clockwise
+   * @type {EdgeSet}
+   */
+  cwEdges;
+
+  /**
+   * The set of edges connected to the target vertex that continue counter-clockwise
+   * @type {EdgeSet}
+   */
+  ccwEdges;
+
+  /**
+   * Is the target vertex for this result behind some closer active edge?
+   * @type {boolean}
+   */
+  isBehind;
+
+  /**
+   * Does the target vertex for this result impose a limited collision?
+   * @type {boolean}
+   */
+  isLimited;
+
+  /**
+   * Has the set of collisions for this result encountered a limited edge?
+   * @type {boolean}
+   */
+  wasLimited;
+
+  /**
+   * Is this result limited in the clockwise direction?
+   * @type {boolean}
+   */
+  limitedCW = false;
+
+  /**
+   * Is this result limited in the counter-clockwise direction?
+   * @type {boolean}
+   */
+  limitedCCW = false;
+
+  /**
+   * Is this result blocking in the clockwise direction?
+   * @type {boolean}
+   */
+  blockedCW = false;
+
+  /**
+   * Is this result blocking in the counter-clockwise direction?
+   * @type {boolean}
+   */
+  blockedCCW = false;
+
+  /**
+   * Previously blocking in the clockwise direction?
+   * @type {boolean}
+   */
+  blockedCWPrev = false;
+
+  /**
+   * Previously blocking in the counter-clockwise direction?
+   * @type {boolean}
+   */
+  blockedCCWPrev = false;
+}