_setLookAngles()

in src/core/PointOfInterestFeature.js [385:431]

• 42 lines of code
• 2 McCabe index (conditional complexity)

  _setLookAngles() {
    // Get the current positions of the tracker and target objects
    const targetPos = this.constructor._getWorldPosition(this._target);
    const trackerPos = this.constructor._getWorldPosition(this._lookTracker);

    // Check if the target has moved
    this._isTargetMoving = MathUtils.getVectorMagnitude([
      targetPos[0] - this._prevTargetPos[0],
      targetPos[1] - this._prevTargetPos[1],
      targetPos[2] - this._prevTargetPos[2]]
    ) > 0;
    Object.assign(this._prevTargetPos, targetPos);


    // Calculate the horizontal and vertical angles to rotate to the target
    const targetSpherical = MathUtils.cartesianToSpherical(
      targetPos[0] - trackerPos[0],
      targetPos[1] - trackerPos[1],
      targetPos[2] - trackerPos[2]
    );
    const targetAngles = this.constructor._sphericalToBlendValue(
      targetSpherical[1],
      targetSpherical[2]
    );

    // Calculate angles relative to the reference objects
    this._trackingConfigs.forEach(({
      reference,
      forwardAxis,
      angles
    }) => {
      // Calculate the horizontal and vertical angles to rotate to the direction of the tracker
      const refDirection = this.constructor._getObjectDirection(
        reference,
        forwardAxis,
      );
      const refSpherical = MathUtils.cartesianToSpherical(...refDirection);
      const refAngles = this.constructor._sphericalToBlendValue(
        refSpherical[1],
        refSpherical[2]
      );

      // Store the difference
      angles.h = targetAngles.h - refAngles.h;
      angles.v = targetAngles.v - refAngles.v;
    });
  }