// ----------------------------------------------------------------

// From Game Programming in C++ by Sanjay Madhav

// Copyright (C) 2017 Sanjay Madhav. All rights reserved.

//

// Released under the BSD License

// See LICENSE in root directory for full details.

// ----------------------------------------------------------------

#include "MoveComponent.h"

#include "Actor.h"

MoveComponent::MoveComponent(class Actor* owner, int updateOrder): Component(owner, updateOrder), mAngularSpeed(0.0f), mForwardSpeed(0.0f)

{

}

void MoveComponent::Update(float deltaTime)

{

if (!Math::NearZero(mAngularSpeed))

{

Quaternion rot = pOwner->GetRotation();

float angle = mAngularSpeed * deltaTime;

// Create quaternion for incremental rotation

// (Rotate about up axis)

Quaternion inc(Vector3::UnitZ, angle);

// Concatenate old and new quaternion

rot = Quaternion::Concatenate(rot, inc);

pOwner->SetRotation(rot);

}

if (!Math::NearZero(mForwardSpeed))

{

Vector3 pos = pOwner->GetPosition();

pos += pOwner->GetForward() * mForwardSpeed * deltaTime;

pOwner->SetPosition(pos);

}

}