#include "dxstdafx.h"
#include "Ship.h"

Ship::Ship(void)
{
	accelerate = brake = turnLeft = turnRight = false;
	velocity = D3DXVECTOR2(1,1);
	angularVelocity = 0.0;
}

Ship::~Ship(void)
{
}

void Ship::Move(double elapsedTime)
{
	if(accelerate)
	{
		velocity += direction/100; 
	}
	if(brake)
	{
		velocity *= 0.5;
	}
	if(turnLeft)
	{
		if(angularVelocity < 0.174532925) //10 degrees 
			angularVelocity += 0.8 * elapsedTime;
	}
	if(turnRight)
	{
		if(angularVelocity > -0.174532925) 
			angularVelocity -= 0.8 * elapsedTime;
	}

	velocity = D3DXVECTOR2(cos(-angularVelocity * elapsedTime) * velocity.x + sin(-angularVelocity * elapsedTime) * velocity.y, -sin(-angularVelocity * elapsedTime) * velocity.x + cos(-angularVelocity * elapsedTime) * velocity.y);
	direction = D3DXVECTOR2(cos(-angularVelocity * elapsedTime) * direction.x + sin(-angularVelocity * elapsedTime) * direction.y, -sin(-angularVelocity * elapsedTime) * direction.x + cos(-angularVelocity * elapsedTime) * direction.y);
	position += velocity * elapsedTime;
}