The ClosestPoint method of the Line struct calculates the closest point on the line to a given position in 3D space. This method is useful for determining the nearest point on a line segment to a specified location, which can be critical in collision detection, pathfinding, and other geometric computations.
To use the ClosestPoint method, you need to have an instance of the Line struct. You will pass a reference to a Vector3 variable that represents the position you want to find the closest point to. The method will return a Vector3 that is the closest point on the line to the specified position.
// Example usage of Line.ClosestPoint
Line line = new Line { Start = new Vector3(0, 0, 0), End = new Vector3(10, 0, 0) };
Vector3 position = new Vector3(5, 5, 0);
Vector3 closestPoint = line.ClosestPoint(ref position);
// closestPoint will be (5, 0, 0) since it's the closest point on the line to the given position.