HendTetris/game.cpp at main · Heindric/HendTetris · GitHub

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#include "game.hpp"
#include <stdexcept>
#include <iostream>

Game::Game():
  tetromino_{static_cast<Tetromino::Type>(rand() % 7)},
  moveTime_(SDL_GetTicks())
{
  if (SDL_Init(SDL_INIT_VIDEO) != 0)
    throw std::runtime_error("SDL_Init(SDL_INIT_VIDEO)");
  SDL_CreateWindowAndRenderer(720 / 2, 720, SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE, &window_, &renderer_);
  SDL_SetWindowPosition(window_, 65, 126);
}

Game::~Game()
{
  SDL_DestroyRenderer(renderer_);
  SDL_DestroyWindow(window_);
  SDL_Quit();
}

bool Game::tick()
{
  SDL_Event e;
  if (SDL_WaitEventTimeout(&e, 250))
  {
    switch (e.type)
    {
    case SDL_KEYDOWN:
      {
        switch (e.key.keysym.sym)
        {
        case SDLK_DOWN:
          {
            Tetromino t = tetromino_;
            t.move(0, 1);
            if (!well_.isCollision(t))
              tetromino_ = t;
          }
          break;
        case SDLK_RIGHT:
          {
            Tetromino t = tetromino_;
            t.move(1, 0);
            if (!well_.isCollision(t))
              tetromino_ = t;
          }
          break;
        case SDLK_LEFT:
          {
            Tetromino t = tetromino_;
            t.move(-1, 0);
            if (!well_.isCollision(t))
              tetromino_ = t;
          }
          break;
        case SDLK_UP:
          {
            Tetromino t = tetromino_;
            t.rotate();
            if (!well_.isCollision(t))
              tetromino_ = t;
          }
          break;
        }
      }
      break;
    case SDL_QUIT:
      return false;
    }
  }
  SDL_SetRenderDrawColor(renderer_, 0, 0, 0, 0xff);
  SDL_RenderClear(renderer_);
  well_.draw(renderer_);
  tetromino_.draw(renderer_);
  if (SDL_GetTicks() > moveTime_)
  {
    moveTime_ += 1000;
    Tetromino t = tetromino_;
    t.move(0, 1);
    check(t);
  }
  SDL_RenderPresent(renderer_);
  return true;
};

void Game::check(const Tetromino &t)
{
  if (well_.isCollision(t))
  {
    well_.unite(tetromino_);
    tetromino_ = Tetromino{static_cast<Tetromino::Type>(rand() % 7)};
    if (well_.isCollision(tetromino_))
    {
      well_ = Well();
    }
  }
  else
  {
    tetromino_ = t;
  }
}