XmasA_Siv3D_v2.cpp

# include <Siv3D.hpp> // OpenSiv3D v0.4.0

void Main()
{
	Scene::Resize(640, 320);
	Window::SetStyle(WindowStyle::Sizable);
	Scene::SetBackground(ColorF(0.8, 0.9, 1.0));
	

	const FilePath root = U"signboard_t1/";
	constexpr Size cellSize{ 32,32 };
	const Texture ans(root + U"design.png");
	Array<Texture> pieces(65);
	const String spl = U" ";
	Array<int> suma(64);
	{
		TextReader tex(U"ans.txt");
		if (!tex) {
			iota(suma.begin(), suma.end(), 1);
		}
		else {
			for (int y = 0; y < 8; y++) {
				String s;
				tex.readLine(s);
				auto str = s.split(spl[0]);
				for (int x = 0; x < 8; x++) {
					suma[y * 8 + x] = Parse<int>(str[x]);
				}
			}
		}
	}
	for (int i = 1; i <= 64; i++) {
		pieces[i] = Texture(Format(root, U"pieces/p_", i, U".png"));
	}

	int s = -1;
	while (System::Update())
	{
		if (KeyEnter.down()) {
			TextWriter tex(U"ans.txt");
			for (int y = 0; y < 8; y++) {
				for (int x = 0; x < 8; x++) {
					tex.write(suma[y * 8 + x], U" ");
				}
				tex.write(U"\n");
			}
		}

		for (int y = 0; y < 8; y++) {
			for (int x = 0; x < 8; x++) {
				if (y * 8 + x == s) {
					pieces[suma[y * 8 + x]].draw(cellSize * Point(x, y)).drawFrame(1.0, Palette::Yellow);
				}
				else {
					pieces[suma[y * 8 + x]].draw(cellSize * Point(x, y)).drawFrame(1.0, Palette::Black);
				}
				if (Rect(cellSize * Point(x, y), cellSize).leftClicked()) {
					if (s == -1) {
						s = y * 8 + x;
					}
					else {
						std::swap(suma[y * 8 + x], suma[s]);
						s = -1;
					}
				}
				ans(cellSize * Point(x, y), cellSize).draw(cellSize * Point(x + 9, y)).drawFrame(1.0, Palette::Black);
			}
		}
	}
}