Add static Vec2.normalize

piqnt · Dec 23, 2024 · 922ff97 · 922ff97
1 parent bee0e16
commit 922ff97
Show file tree

Hide file tree

Showing 2 changed files with 19 additions and 0 deletions.
diff --git a/.changeset/clever-pants-carry.md b/.changeset/clever-pants-carry.md
@@ -0,0 +1,5 @@
+---
+"planck": patch
+---
+
+Add static Vec2.normalize
diff --git a/src/common/Vec2.ts b/src/common/Vec2.ts
@@ -363,6 +363,20 @@ export class Vec2 {
     return length;
   }
 
+  /**
+   * Returns a new unit vector from the provided vector.
+   *
+   * @returns new unit vector
+   */
+  static normalize(v: Vec2Value): Vec2 {
+    const length = Vec2.lengthOf(v);
+    if (length < EPSILON) {
+      return Vec2.zero();
+    }
+    const invLength = 1.0 / length;
+    return Vec2.neo(v.x * invLength, v.y * invLength);
+  }
+
   /**
    * Get the length of this vector (the norm).
    *