public void Hsb2rgb(float h, float s, float b, Color expectedColor)
{
var rgb = ColorSystems.Hsb2rgb(h, s, b);
var expected = expectedColor.ToVector3();
Assert.AreEqual(expected, rgb);
}
public void Hsb2rgbMagenta()
{
var rgb = ColorSystems.Hsb2rgb(5.0f / 6.0f, 1, 1);
var expected = new Vector3(1, 0, 1);
Assert.AreEqual(expected, rgb);
}
public void Hsb2rgbTestBlack1()
{
var rgb = ColorSystems.Hsb2rgb(0, 0, 0);
var expected = Vector3.Zero; //black
Assert.AreEqual(expected, rgb);
}
public void Hsb2rgbBlue()
{
var rgb = ColorSystems.Hsb2rgb(4.0f / 6.0f, 1, 1);
var expected = new Vector3(0, 0, 1);
Assert.AreEqual(expected, rgb);
}
public void Hsb2rgbTestYellow()
{
var rgb = ColorSystems.Hsb2rgb(1.0f / 6.0f, 1, 1);
var expected = new Vector3(1, 1, 0);
Assert.AreEqual(expected, rgb);
}
public void Hsb2rgbTestGreen()
{
var rgb = ColorSystems.Hsb2rgb(2.0f / 6.0f, 1, 1);
var expected = Vector3.UnitY;
Assert.AreEqual(expected, rgb);
}
public void Hsb2rgbTestRed()
{
var rgb = ColorSystems.Hsb2rgb(0, 1, 1);
var expected = Vector3.UnitX; //red
Assert.AreEqual(expected, rgb);
}
public void Hsb2rgbTestColor()
{
var rgb = ColorSystems.Hsb2rgb(0, 0.2f, 1);
var expected = new Vector3(1, 0.8f, 0.8f);
Assert.AreEqual(expected, rgb);
}
public void Hsb2rgbTestWhite()
{
var rgb = ColorSystems.Hsb2rgb(0, 0, 1);
var expected = Vector3.One; //white
Assert.AreEqual(expected, rgb);
}
public Collider(float x, float y, float sizeX, float sizeY)
{
Box = new Box2D(x, y, sizeX, sizeY);
//make a hsb color sweep in polar coordinates
var polar = MathHelper.ToPolar(new Vector2(x, y));
var rgb = ColorSystems.Hsb2rgb(polar.X / MathHelper.TWO_PI + 0.5f, polar.Y, 1);
Color = ColorSystems.ToSystemColor(rgb);
Velocity = Vector2.Zero;
}
public override void Render()
{
GL.Clear(ClearBufferMask.ColorBufferBit);
const int count = 16;
var boxSize = 1.9f / count;
for (int xI = 0; xI < count; ++xI)
{
float x = xI * 2f / count - 1f;
float brightness = xI / (float)count;
for (int yI = 0; yI < count; ++yI)
{
float y = yI * 2f / count - 1f;
float saturation = yI / (float)count;
var color = ColorSystems.Hsb2rgb(Hue, saturation, brightness);
DrawRect(new Box2D(x, y, boxSize, boxSize), color);
}
}
}
private void InitParticles()
{
var rnd = new Random(12);
Func <float> Rnd01 = () => (float)rnd.NextDouble();
Func <float> RndCoord = () => (Rnd01() - 0.5f) * 2.0f;
Func <float> RndSpeed = () => (Rnd01() - 0.5f) * 0.1f;
bufferParticles = new BufferObject(BufferTarget.ShaderStorageBuffer);
var data = new Particle[particelCount];
for (int i = 0; i < particelCount; ++i)
{
data[i].position = new Vector2(RndCoord(), RndCoord());
data[i].velocity = new Vector2(RndSpeed(), RndSpeed());
var polar = MathHelper.ToPolar(data[i].position);
var color = ColorSystems.Hsb2rgb(polar.X / MathHelper.TWO_PI + 0.5f, polar.Y, 1);
var byteColor = ColorSystems.ToSystemColor(color);
data[i].color = color;
data[i].size = (Rnd01() + 1) * 10;
}
bufferParticles.Set(data, BufferUsageHint.StaticCopy);
}