#include "bullet.h"
#include "world.h"

Bullet::Bullet(Player& player) {
	m_startpos = m_currentpos = player.GetPOV() + player.GetDirection();
	m_velocity = player.GetDirection();
}

Bullet::~Bullet() {}

bool Bullet::Update(World* world, float elapsedtime) {
	for (int x = 0; x < 1000; ++x) {
		m_currentpos += m_velocity * elapsedtime;

		if (!world->ChunkAt(m_currentpos))
			return true;
		else if (world->BlockAt(m_currentpos) != BTYPE_AIR) {
			world->ChangeBlockAtPosition(BTYPE_AIR, m_currentpos);
			return true;
		}
		else if ((m_currentpos - m_startpos).Length() > VIEW_DISTANCE) return true;
	}

	return false;
}

void Bullet::Transpose(int& x, int& z) {
	m_currentpos.x -= x * CHUNK_SIZE_X;
	m_currentpos.z -= z * CHUNK_SIZE_Z;
	m_startpos.x -= x * CHUNK_SIZE_X;
	m_startpos.z -= z * CHUNK_SIZE_Z;
}

Vector3f& Bullet::getPos() {
	return m_currentpos;
}