pacman/lib/Game.cpp
2021-10-05 14:48:26 +02:00

50 lines
1.3 KiB
C++

#include "Game.hpp"
#include "GameState.hpp"
#include <chrono>
namespace pacman {
void Game::run() {
const std::chrono::milliseconds delta_time(1000 / 60);
std::chrono::milliseconds accumulator(0);
auto current_time = std::chrono::system_clock::now();
while (true) {
const auto newTime = std::chrono::system_clock::now();
const auto frameTime = std::chrono::duration_cast<std::chrono::milliseconds>(newTime - current_time);
current_time = newTime;
accumulator += frameTime;
processEvents(gameState.inputState);
if (gameState.inputState.close)
return;
while (accumulator >= delta_time) {
gameState.step(delta_time);
accumulator -= delta_time;
}
canvas.update(gameState);
}
}
void Game::processEvents(InputState & inputState) {
const auto event = canvas.pollEvent();
if (event && event.value().type == sf::Event::Closed) {
inputState.close = true;
return;
}
if (sf::Keyboard::isKeyPressed(sf::Keyboard::A)) {
inputState.enableAI = !inputState.enableAI;
}
inputState.down = sf::Keyboard::isKeyPressed(sf::Keyboard::Key::Down);
inputState.up = sf::Keyboard::isKeyPressed(sf::Keyboard::Key::Up);
inputState.left = sf::Keyboard::isKeyPressed(sf::Keyboard::Key::Left);
inputState.right = sf::Keyboard::isKeyPressed(sf::Keyboard::Key::Right);
}
} // namespace pacman