#include "Camera.h"

Camera::Camera(float xRot, float yRot, float zRot, const Vertex& pos)
{
	_initialRotation[0] = xRot;
	_currentRotation[0] = xRot;
	_initialRotation[1] = yRot;
	_currentRotation[1] = yRot;
	_initialRotation[2] = zRot;
	_currentRotation[2] = zRot;
	_initialPosition = pos;
	_currentPosition = pos;
}

Camera::Camera(const Camera& other)
{
	Copy(other);
}

Camera::~Camera()
{
}                                                                         

Matrix Camera::UpdateCameraPosition(const Vertex& newPos)
{
	_currentPosition = newPos;
	return GetCurrentCameraTransformMatrix();
}

Matrix Camera::RotateCamera(float xRot, float yRot, float zRot)
{
	_currentRotation[0] = xRot;
	_currentRotation[1] = yRot;
	_currentRotation[2] = zRot;
	return GetCurrentCameraTransformMatrix();
}

Matrix Camera::GetCurrentCameraTransformMatrix()
{	
	return GetCameraRotationMatrix(Axis::X, _currentRotation[0]) * GetCameraRotationMatrix(Axis::Y, _currentRotation[1]) * GetCameraRotationMatrix(Axis::Z, _currentRotation[2]) * GetCameraTranslateMatrix(_currentPosition);
}

float Camera::GetCurrentRotationValue(const Axis axis)
{
	switch (axis)
	{
	case (Axis::X):
		return _currentRotation[0];		
	case (Axis::Y):
		return _currentRotation[1];
	case (Axis::Z):
		return _currentRotation[2];
	default:
		throw "No valid axis?";
	}
}

float Camera::GetInitialRotationValue(const Axis axis)
{
	switch (axis)
	{
	case (Axis::X):
		return _initialRotation[0];
	case (Axis::Y):
		return _initialRotation[1];
	case (Axis::Z):
		return _initialRotation[2];
	default:
		throw "No valid axis?";
	}
}

Vertex Camera::GetCurrentPosition()
{
	return _currentPosition;
}

Vertex Camera::GetInitialPosition()
{
	return _initialPosition;
}

Camera& Camera::operator=(const Camera& rhs)
{	
	if (this != &rhs)
	{
		Copy(rhs);
	}
	return *this;
}

void Camera::Copy(const Camera& other)
{
	_initialRotation[0] = other._initialRotation[0];
	_currentRotation[0] = other._currentRotation[0];
	_initialRotation[1] = other._initialRotation[1];
	_currentRotation[1] = other._currentRotation[1];
	_initialRotation[2] = other._initialRotation[2];
	_currentRotation[2] = other._currentRotation[2];
	_initialPosition = other._initialPosition;
	_currentPosition = other._currentPosition;
}