fix: normalizeRotations should return between -180deg to 180deg range

Author: yomotsu

readme.md

@@ -656,7 +656,7 @@ Set current camera position as the default position
 
 #### `normalizeRotations()`
 
-Normalize camera azimuth angle (horizontal rotation) between 0 and 360 degrees.
+Normalize camera azimuth angle (horizontal rotation) between -180 and 180 degrees.
 This is useful when you want to keep the azimuth angle normalized before calling methods like `.setLookAt()`, `.lerpLookAt()`, `.setTarget()`, `.setPosition()`, and `.reset()`.
 
 This method returns the CameraControls instance itself, so you can chain it with other methods.

src/CameraControls.ts

@@ -2432,14 +2432,14 @@ export class CameraControls extends EventDispatcher {
 	}
 
 	/**
-	 * Normalize camera azimuth angle (horizontal rotation) between 0 and 360 degrees.
+	 * Normalize camera azimuth angle (horizontal rotation) between -180 and 180 degrees.
 	 * @returns This CameraControls instance.
 	 * @category Methods
 	 */
 	normalizeRotations(): CameraControls {
 
-		this._sphericalEnd.theta = this._sphericalEnd.theta % PI_2;
-		if ( this._sphericalEnd.theta < 0 ) this._sphericalEnd.theta += PI_2;
+		this._sphericalEnd.theta = ( ( this._sphericalEnd.theta % PI_2 ) + PI_2 ) % PI_2;
+		if ( this._sphericalEnd.theta > Math.PI ) this._sphericalEnd.theta -= PI_2;
 		this._spherical.theta += PI_2 * Math.round( ( this._sphericalEnd.theta - this._spherical.theta ) / PI_2 );
 
 		return this;