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

Bullet::Bullet(Vector3f pos, Vector3f dir) : m_startpos(pos), m_currentpos(pos), m_velocity(dir) {}

Bullet::Bullet(Vector3f pos, Vector3f dir, uint64_t tid): m_startpos(pos), m_currentpos(pos), m_velocity(dir), m_tid(tid) {}

Bullet::~Bullet() {}

bool Bullet::Update(World* world, float elapsedtime, int perframe, std::map<uint64_t, Player*> mapPlayer) {
	int max = 100 / perframe;
	float damage = 0.057f;
	for (int x = 0; x < max; ++x) {
		m_currentpos += m_velocity * elapsedtime;

		for (auto& [key, player] : mapPlayer) {
			if ((m_currentpos - player->GetPosition()).Length() < .4f) {
				player->InflictDamage(damage);
				return true;
			}
		}

		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() const {
	return m_currentpos;
}

Vector3f Bullet::getVel() const {
	return m_velocity;
}

uint64_t Bullet::getTeamID(){
	return m_tid;
}