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controller.cpp
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controller.cpp
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#include "controller.h"
#include "globals.h"
#include <QGraphicsScene>
#include <QTime>
#include <QtGlobal>
#include <QDebug>
Controller::Controller(QGraphicsScene* scene) : QObject(),
m_scene(scene),
m_num_tanks(Globs::POPULATION),
m_num_ammo(Globs::NUM_AMMO),
m_tanks(create_tanks()),
m_ammo(create_ammo()),
m_timer(),
m_time_delta(),
m_tick_count(0),
m_gen_alg(Globs::MUTATION, Globs::CROSSOVER, Globs::POPULATION),
m_selected_tank(0, 0, 10, 10),
m_best_tank(0, 0, 10, 10),
m_closest_ammo(0, 0, 20, 20)
{
QTime time = QTime::currentTime();
qsrand((uint)time.msec());
connect(&m_timer, SIGNAL(timeout()), this, SLOT(update()));
connect(this, SIGNAL(start_loop(int)), &m_timer, SLOT(start(int)));
m_scene->addItem(&m_selected_tank);
m_scene->addItem(&m_best_tank);
m_scene->addItem(&m_closest_ammo);
}
const Tank::TankVector& Controller::get_tanks() const
{
return m_tanks;
}
const AmmoVector& Controller::get_ammo() const
{
return m_ammo;
}
Tank::TankVector Controller::create_tanks()
{
Tank::TankVector tanks;
for(int i = 0; i < m_num_tanks; ++i)
{
tanks.append(std::make_shared<Tank>());
}
return tanks;
}
AmmoVector Controller::create_ammo()
{
AmmoVector ammo;
for(int i = 0; i < m_num_ammo; ++i)
{
ammo.append(std::make_shared<Ammo>());
}
return ammo;
}
bool pick_up_ammo(Tank::Ptr tank)
{
QPointF tank_top_left = tank->pos();
QPointF tank_bottom_right = tank_top_left + tank->boundingRect().bottomRight();
QRectF tank_box(tank_top_left, tank_bottom_right);
AmmoPtr ammo = tank->get_closest_ammo();
QPointF ammo_top_left = ammo->pos();
QPointF ammo_bottom_right = ammo_top_left + ammo->boundingRect().bottomRight();
QRectF ammo_box(ammo_top_left, ammo_bottom_right);
return tank_box.intersects(ammo_box);
}
void Controller::update()
{
double time_delta = m_time_delta.get_time_delta();
if(m_tick_count < Globs::GENERATION_TICKS)
{
Tank::Ptr selected_tank(m_tanks[0]);
Tank::Ptr best_tank(m_tanks[0]);
for(Tank::Ptr tank : m_tanks)
{
tank->update_state(m_ammo, time_delta);
if(tank->get_brain().get_fitness() > selected_tank->get_brain().get_fitness())
{
best_tank = tank;
}
if(tank->hasFocus())
{
selected_tank = tank;
}
if(pick_up_ammo(tank))
{
AmmoPtr collected = tank->get_closest_ammo();
tank->increment_fitness();
collected->setPos(std::abs(Globs::SCREEN_WIDTH * rand_float()),
std::abs(Globs::SCREEN_HEIGHT * rand_float()));
}
}
// Draw ellipse on the selected tank
m_selected_tank.setPos(selected_tank->m_position.x(), selected_tank->m_position.y() - 20);
m_best_tank.setPos(best_tank->m_position.x(), best_tank->m_position.y() - 20);
m_closest_ammo.setPos(selected_tank->get_closest_ammo()->pos());
}
else
{
m_tick_count = 0;
m_gen_alg.increment_generation();
QVector<Genome> new_generation = m_gen_alg.epoch(get_tank_genomes());
set_tank_genomes(new_generation);
qDebug() << "Generation" << m_gen_alg.generation() << "best:" << m_gen_alg.best_fitness()
<< "avarege:" << m_gen_alg.average_fitness();
}
++m_tick_count;
}
QVector<Genome> Controller::get_tank_genomes() const
{
QVector<Genome> tank_genomes;
for(Tank::Ptr tank : m_tanks)
{
tank_genomes.append(std::move(tank->get_genome()));
}
return std::move(tank_genomes);
}
void Controller::set_tank_genomes(QVector<Genome>& genomes)
{
for(int i = 0; i < m_num_tanks; ++i)
{
m_tanks[i]->set_genome(genomes[i]);
}
}