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app.cpp
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app.cpp
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#include "app.h"
#include <iostream>
#include <chrono>
App::App(unsigned int width, unsigned int height): _width(width), _height(height) {
_window.create(sf::VideoMode(width, height), "My window");
_texture.create(width, height);
_window.setVerticalSyncEnabled(true);
}
void App::run() {
while (_window.isOpen())
{
auto start = std::chrono::high_resolution_clock::now();
process_events();
render_image();
auto end = std::chrono::high_resolution_clock::now();
_frame_time += std::chrono::duration_cast<std::chrono::milliseconds>(end - start).count();
_elapsed_frames++;
if (_elapsed_frames % 60 == 0) {
std::cout << "FPS: " << 60000.0l / _frame_time << std::endl;
_frame_time = 0;
_elapsed_frames = 0;
}
}
}
void App::set_render(std::unique_ptr<BaseRender> && render) {
_render_p = std::move(render);
}
void App::render_image() {
// clear the window with black color
_window.clear(sf::Color::Black);
// draw everything here...
if (_render_p)
_texture.update(reinterpret_cast<u_char *>(_render_p->get_image().data()));
_sprite.setTexture(_texture, true);
_window.draw(_sprite);
// end the current frame
_window.display();
}
void App::process_events() {
sf::Event event;
bool processed_move = false;
while (_window.pollEvent(event))
{
// "close requested" event: we close the window
if (event.type == sf::Event::Closed)
_window.close();
if (event.type == sf::Event::KeyPressed && !processed_move && _render_p) {
processed_move = true;
switch (event.key.code) {
case sf::Keyboard::Up:
_render_p->up();
break;
case sf::Keyboard::Down:
_render_p->down();
break;
case sf::Keyboard::Left:
_render_p->left();
break;
case sf::Keyboard::Right:
_render_p->right();
break;
case sf::Keyboard::A:
_render_p->foreward();
break;
case sf::Keyboard::Z:
_render_p->backward();
break;
case sf::Keyboard::Equal:
_render_p->more_iterations();
break;
case sf::Keyboard::Tilde:
_render_p->less_iterations();
std::cout << "less iters" << std::endl;
break;
default:
std::cout << event.key.code << std::endl;
break;
}
}
}
}