object.go

package space

// An Object is something which exists in space
type Object struct {
	// location is the location of the
	location Cartesian
	// orientation is primary Spherical of the object
	orientation Spherical
	// rotation is secondary Spherical of the object
	// rotation will always be orthogonal to direction
	rotation Spherical
}

// NewObject creates an object
func NewObject(location Cartesian, orientation, rotation Spherical) *Object {
	normalizedRotation := orientation.PortionOrtagonal(rotation)
	return &Object{
		location:    location,
		orientation: orientation,
		rotation:    normalizedRotation,
	}
}

// GetLocation returns the physical location of the device
func (o Object) GetLocation() Cartesian {
	return o.location
}

// SetLocation changes the physical location of the device
func (o *Object) SetLocation(newLocation Cartesian) {
	o.location = newLocation
}

// GetOrientation returns the physical Spherical of the device
func (o Object) GetOrientation() Spherical {
	return o.orientation
}

// SetOrientation changes the physical Spherical of the device
func (o *Object) SetOrientation(newOrientation Spherical) {
	o.orientation = newOrientation
	o.rotation = newOrientation.PortionOrtagonal(o.rotation)
}

// GetRotation returns the physical rotation of the device
func (o Object) GetRotation() Spherical {
	return o.rotation
}

// SetRotation changes the physical rotation of the device
func (o *Object) SetRotation(newRotation Spherical) {
	o.rotation = o.orientation.PortionOrtagonal(newRotation)
}

// GetBearings returns all properties of the object
func (o Object) GetBearings() (location Cartesian, orientation, rotation Spherical) {
	return o.location, o.orientation, o.rotation
}

// Move changes all properties of the object
func (o *Object) Move(location Cartesian, orientation, rotation Spherical) {
	normalizedRotation := orientation.PortionOrtagonal(rotation)
	o.location = location
	o.orientation = orientation
	o.rotation = normalizedRotation
}