Main.cpp

//May2014
# include <Siv3D.hpp>

void Main()
{
	Window::Resize(854, 480);

	Rect window(Window::Size());
	
	//任意の画像を用意してください
	Texture openingTexture(L"data/opening.png");
	Texture mainTexture(L"data/main.png");
	Texture gameOverTexture(L"data/gameOver.png");
	Texture gameClearTexture(L"data/gameClear.png");

	Font font(30);
	String highScoresString;

	int nowScore = 0;
	std::array<int, 5> highScores;
	highScores.fill(0);

	auto setScore = [&](int score)
	{
		auto it = std::min_element(highScores.begin(), highScores.end());

		if (score > *it)
		{
			*it = score;
		}

		std::sort(highScores.begin(), highScores.end(), std::greater<int>());

		highScoresString.clear();

		for (const auto& score : highScores)
		{
			highScoresString += Format(score, L"\n");
		}
	};

	auto init = [&]()
	{
		nowScore = 0;
	};


	enum class GameState
	{
		Opening,
		Main,
		GameOver,
		GameClear,
		Result
	};

	GameState gameState = GameState::Opening;

	auto opening = [&]()
	{
		if (Input::AnyKeyClicked())
		{
			init();

			gameState = GameState::Main;
		}

		window(openingTexture).draw();
	};

	auto gameMain = [&]()
	{
		if (Input::KeyZ.clicked)
		{
			gameState = GameState::GameClear;
		}
		if (Input::KeyX.clicked)
		{
			gameState = GameState::GameOver;
		}

		if (Input::KeySpace.clicked)
		{
			++nowScore;
		}

		window(mainTexture).draw();

		font(nowScore).draw();
	};

	auto gameOver = [&]()
	{
		if (Input::AnyKeyClicked())
		{
			gameState = GameState::Opening;
		}

		window(gameOverTexture).draw();
	};

	auto gameClear = [&]()
	{
		if (Input::AnyKeyClicked())
		{
			setScore(nowScore);

			gameState = GameState::Result;
		}

		window(gameClearTexture).draw();
	};

	auto result = [&]()
	{
		if (Input::AnyKeyClicked())
		{
			gameState = GameState::Opening;
		}

		font(highScoresString).drawCenter(Window::Center());
	};


	std::vector<std::function<void()>> sequences = 
	{
		opening,
		gameMain,
		gameOver,
		gameClear,
		result
	};


	while (System::Update())
	{
		sequences[static_cast<int>(gameState)]();
	}
}