82 lines
2.0 KiB
C++
82 lines
2.0 KiB
C++
#include "Game.hpp"
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#include <chrono>
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constexpr int DEFAULT_LIVES = 3;
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constexpr int NORMAL_PELLET_POINTS = 10;
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constexpr int POWER_PELLET_POINTS = 50;
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//constexpr int GHOST_POINTS[] = {200, 400, 800, 1600};
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Game::Game()
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: pacMan(board),
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pellets(board),
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superPellets(board)
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{
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score.lives = DEFAULT_LIVES;
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}
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auto Game::now() {
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return std::chrono::system_clock::now();
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}
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void Game::run() {
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const std::chrono::milliseconds delta_time (1000/60);
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std::chrono::milliseconds t(0);
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std::chrono::milliseconds accumulator(0);
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auto current_time = now();
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InputState inputState;
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while (true) {
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auto newTime = now();
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auto frameTime = std::chrono::duration_cast<std::chrono::milliseconds>(newTime - current_time);
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current_time = newTime;
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accumulator += frameTime;
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processEvents(inputState);
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if(inputState.close)
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return;
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while ( accumulator >= delta_time ) {
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pacMan.update(delta_time, inputState, board);
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eatPellets();
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accumulator -= delta_time;
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t += delta_time;
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}
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canvas.update(pacMan, pellets, superPellets, score);
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}
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}
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void Game::eatPellets() {
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const auto pos = pacMan.positionInGrid();
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if(pellets.eatPelletAtPosition(pos)) {
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score.eatenPellets++;
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score.points += NORMAL_PELLET_POINTS;
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}
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if(superPellets.eatPelletAtPosition(pos)) {
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score.eatenPellets++;
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score.points += POWER_PELLET_POINTS;
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}
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}
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void Game::processEvents(InputState & inputState) {
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auto event = canvas.pollEvent();
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if (event && event->type == sf::Event::Closed) {
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inputState.close = true;
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return;
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}
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inputState.down = inputState.up = inputState.left = inputState.right = false;
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inputState.down = sf::Keyboard::isKeyPressed(sf::Keyboard::Key::Down);
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inputState.up = sf::Keyboard::isKeyPressed(sf::Keyboard::Key::Up);
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inputState.left = sf::Keyboard::isKeyPressed(sf::Keyboard::Key::Left);
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inputState.right = sf::Keyboard::isKeyPressed(sf::Keyboard::Key::Right);
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}
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