public Vector3f subtractLocal(float subtractX, float subtractY, float subtractZ) {
        x -= subtractX;
        y -= subtractY;
        z -= subtractZ;
        return this;
    }
Subtracts the specified amounts from the vector's components and returns
the (modified) current instance.

@param subtractX the amount to subtract from the X component
@param subtractY the amount to subtract from the Y component
@param subtractZ the amount to subtract from the Z component
@return the (modified) current instance (for chaining)
jme3-core/src/main/java/com/jme3/math/Vector3f.java