https://github.com/reputeless/siv3d-go
第 3 回 Siv3D Game Jam (テーマ「プログラムだけで碁盤と碁石を描く」) 参加作品
https://github.com/reputeless/siv3d-go
Last synced: 2 months ago
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第 3 回 Siv3D Game Jam (テーマ「プログラムだけで碁盤と碁石を描く」) 参加作品
- Host: GitHub
- URL: https://github.com/reputeless/siv3d-go
- Owner: Reputeless
- Created: 2016-03-20T09:52:31.000Z (over 9 years ago)
- Default Branch: master
- Last Pushed: 2016-03-20T10:03:55.000Z (over 9 years ago)
- Last Synced: 2025-02-21T08:47:16.507Z (10 months ago)
- Size: 280 KB
- Stars: 0
- Watchers: 3
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# Siv3D-Go
第 3 回 Siv3D Game Jam (テーマ「プログラムだけで碁盤と碁石を描く」) 参加作品
#### 作者
Reputeless (https://twitter.com/Reputeless)
#### 説明
碁盤の模様: Perlin Noise
碁石: レイトレーシングで球を描いた Image
左クリックで黒、右クリックで白
#### コード
```cpp
# include
const Size offset(30, 30);
const Size padding(18, 18);
const int32 blockSize = 28;
const Rect goban(offset, 18 * Size(blockSize, blockSize) + padding * 2);
Point GetPos(const Point& xy)
{
return offset + padding + xy * blockSize;
}
Image CreateGoban()
{
PerlinNoise noise;
return Image(800, 800, [&](const Point& p)
{
const double x = Fraction(noise.octaveNoise0_1(p * Vec2(0.03, 0.0002), 2) * 25) * 0.15 + 0.85;
return ColorF(x, 0.7 * Pow(x, 1.3), 0.35 *x);
}).gaussianBlurred(1, 1).scaled(goban.size);
}
Image CreateStone(bool black)
{
const Vec4 sphere(0, 0, 1.5, 1.0);
const Vec3 lightDir = Vec3(-1, 1, -1).normalized();
return Image(200, 200, [=](const Point& p)
{
const Vec3 dir = Vec3(p.x / 100.0 - 1.0, p.y / -100.0 +1.0, 1.0).normalized();
const double B = -sphere.xyz().dot(dir);
const double D = B * B - (sphere.xyz().dot(sphere.xyz()) - (sphere.w * sphere.w));
if (D > 0.0)
{
const double t = -B - Sqrt(D);
if (t > 0.0)
{
const Vec3 pos = dir * t;
const Vec3 normal = (pos - sphere.xyz()).normalized();
const Vec3 half = (lightDir - pos.normalized()).normalized();
const double diffuse = Max(normal.dot(lightDir), 0.0) * (black ? 0.02 : 1.5);
const double specular = Pow(Max(normal.dot(half), 0.0), 32);
return ColorF(Pow(diffuse + specular, 1.0 / 2.2));
}
}
return ColorF(black ? 0.0 : 0.5, 0.0);
}).scaled(0.158);
}
void Main()
{
Window::Resize(800, 600);
Graphics::SetBackground(Color(170, 170, 110));
const Texture textureGoban(CreateGoban());
const Texture textureBlack(CreateStone(true));
const Texture textureWhite(CreateStone(false));
Grid stones(19, 19, 0);
while (System::Update())
{
goban.drawShadow({ 6, 6 }, 20, 5);
goban(textureGoban).draw();
for (auto i : step(19))
{
Line(GetPos({ 0, i }), GetPos({ 18, i })).moveBy(0.5, 0.5).draw(Color(20));
Line(GetPos({ i, 0 }), GetPos({ i, 18 })).moveBy(0.5, 0.5).draw(Color(20));
}
for (auto x : { 3, 9, 15 })
{
for (auto y : { 3, 9, 15 })
{
Circle(GetPos({ x, y }), 2.1).moveBy(0.5, 0.5).draw(Color(0));
}
}
for (auto p : step({ 19,19 }))
{
if (const int32 stone = stones[p])
{
Circle(GetPos(p), 13).drawShadow({ 2.5, 2.5 }, 3, 1);
(stone == 1 ? textureBlack : textureWhite).drawAt(GetPos(p));
}
}
const Point pp((Mouse::Pos() - offset - (Size(blockSize, blockSize) - padding) / 2) / blockSize);
if (stones.inBounds(pp.y, pp.x))
{
if (!stones[pp])
{
Circle(GetPos(pp), 13).moveBy(0.5, 0.5).drawFrame(5, 0, Color(255, 0, 40, 127));
}
if (Input::MouseL.clicked)
{
stones[pp] = (stones[pp] != 1);
}
else if (Input::MouseR.clicked)
{
stones[pp] = (stones[pp] != 2) * 2;
}
}
}
}
```