public static Color32 NextColor32(this Random self) { return(new Color32( self.NextByte(), self.NextByte(), self.NextByte(), self.NextByte() )); }
public void TestByte() { var rnd = new System.Random(); for (var c = 0; c < count; c++) { var mem = new byte[sizeof(Byte) * writeRepeatCount]; var span1 = new SpanStream(mem); var span2 = new SpanStream(mem); var a = new Byte[writeRepeatCount]; for (var i = 0; i < writeRepeatCount; i++) { var n = rnd.NextByte(); a[i] = n; span1.Write(n); } for (var i = 0; i < writeRepeatCount; i++) { var r = span2.ReadByte(); Assert.Equal(a[i], r); } } }
public void TestByte() { var rnd = new System.Random(); for (var c = 0; c < count; c++) { var mem = new byte[sizeof(Byte) * writeRepeatCount]; var span1 = new Span <byte>(mem); var span2 = new ReadOnlySpan <byte>(mem); var a = new Byte[writeRepeatCount]; for (var i = 0; i < writeRepeatCount; i++) { var n = rnd.NextByte(); a[i] = n; span1.MoveWrite(n); } // Ensure span is not zero Assert.NotEqual(0, span2.ToArray().Select(b => (int)b).Sum()); for (var i = 0; i < writeRepeatCount; i++) { var r = span2.MoveReadByte(); Assert.Equal(a[i], r); } } }
public static decimal NextDecimal(this System.Random generator) => new decimal( generator.NextInt(), generator.NextInt(), generator.NextInt(), generator.NextBool(), generator.NextByte() );
//public async Task<string> yield() public async Task yield() { // where else have we done css remoting? var r = new Random(); body.Attribute("style").Value = "background-color: " + "rgb(" + r.NextByte() + "," + r.NextByte() + "," + r.NextByte() + ")"; // server side delay. progressbar shows up? //await Task.Delay(2500); System.Threading.Thread.Sleep(500); //return "ok"; }
public void TestUByte() { var rnd = new System.Random(); var mem = new byte[sizeof(SByte)]; var span = new Span <byte>(mem); var roSpan = new Span <byte>(mem); for (var c = 0; c < count; c++) { span.Fill(rnd.NextByte()); Byte a = 0; // Pick any number except zero while ((a = rnd.NextByte()) == 0) { } span.Write(a); // Ensure span is not zero Assert.NotEqual(0, span.ToArray().Select(b => (int)b).Sum()); var r = roSpan.ReadByte(); Assert.Equal(a, r); } }
public static object Next(this System.Random generator, Type desired) { switch (Type.GetTypeCode(desired)) { case TypeCode.Boolean: return(generator.NextBool()); case TypeCode.Byte: return(generator.NextByte()); case TypeCode.Char: return(generator.NextChar()); case TypeCode.DateTime: return(generator.NextDateTime()); case TypeCode.Decimal: return(generator.NextDecimal()); case TypeCode.Double: return(generator.NextDouble()); case TypeCode.Int16: return(generator.NextShort()); case TypeCode.Int32: return(generator.NextInt()); case TypeCode.Int64: return(generator.NextLong()); case TypeCode.SByte: return(generator.NextSByte()); case TypeCode.Single: return(generator.NextFloat()); case TypeCode.UInt16: return(generator.NextUShort()); case TypeCode.UInt32: return(generator.NextUInt()); case TypeCode.UInt64: return(generator.NextULong()); default: throw new ArgumentOutOfRangeException("Cannot provide a random " + desired); } }
public void DnsOptResourceRecordTest() { Random random = new Random(); for (int i = 0; i != 100; ++i) { DnsDomainName domainName = random.NextDnsDomainName(); ushort sendersUdpPayloadSize = random.NextUShort(); byte extendedRcode = random.NextByte(); DnsOptVersion version = (DnsOptVersion)random.NextByte(); DnsOptFlags flags = (DnsOptFlags)random.NextUShort(); DnsResourceDataOptions data = (DnsResourceDataOptions)random.NextDnsResourceData(DnsType.Opt); DnsOptResourceRecord record = new DnsOptResourceRecord(domainName, sendersUdpPayloadSize, extendedRcode, version, flags, data); Assert.AreEqual(domainName, record.DomainName); Assert.AreEqual(sendersUdpPayloadSize, record.SendersUdpPayloadSize); Assert.AreEqual(extendedRcode, record.ExtendedReturnCode); Assert.AreEqual(version, record.Version); Assert.AreEqual(flags, record.Flags); Assert.AreEqual(data, record.Data); } }
public void IpV4OptionRoutePointedAddressIndexErrorTest() { Random random = new Random(); IpV4Option option = new IpV4OptionRecordRoute(random.NextByte(IpV4OptionRoute.PointedAddressIndexMaxValue + 1, byte.MaxValue + 1)); Assert.IsNotNull(option); Assert.Fail(); }
public void IpV4OptionTimestampPointedIndexErrorTest() { Random random = new Random(); IpV4Option option = new IpV4OptionTimestampOnly(0, random.NextByte(IpV4OptionTimestamp.PointedIndexMaxValue + 1, byte.MaxValue + 1)); Assert.IsNotNull(option); Assert.Fail(); }
public void IpV4OptionTimestampOverflowErrorTest() { Random random = new Random(); IpV4Option option = new IpV4OptionTimestampOnly(random.NextByte(IpV4OptionTimestamp.OverflowMaxValue + 1, byte.MaxValue + 1), 0); Assert.IsNotNull(option); Assert.Fail(); }
public static sbyte NextSByte(this System.Random generator) => (sbyte)generator.NextByte();
void ChangeColor( Random rand, Shape shape, TaskState task ) { shape.PreviousState = shape.Clone() as Shape; int delta = rand.NextByte( 1, (int)( MaxColorDelta + 1 ) ) * ( rand.Next( 2 ) == 0 ? 1 : -1 ); switch( rand.Next( 4 ) ) { case 0: shape.Color = Color.FromArgb( Math.Max( task.ProjectOptions.MinAlpha, Math.Min( 255, shape.Color.A + delta ) ), shape.Color.R, shape.Color.G, shape.Color.B ); break; case 1: shape.Color = Color.FromArgb( shape.Color.A, Math.Max( 0, Math.Min( 255, shape.Color.R + delta ) ), shape.Color.G, shape.Color.B ); break; case 2: shape.Color = Color.FromArgb( shape.Color.A, shape.Color.R, Math.Max( 0, Math.Min( 255, shape.Color.G + delta ) ), shape.Color.B ); break; case 3: shape.Color = Color.FromArgb( shape.Color.A, shape.Color.R, shape.Color.G, Math.Max( 0, Math.Min( 255, shape.Color.B + delta ) ) ); break; } }
public DNA Mutate( Random rand, DNA oldDNA, TaskState task ) { int maxOverlap = task.ProjectOptions.MaxOverlap; DNA newDNA = new DNA( oldDNA ); Shape shape = newDNA.Shapes[rand.Next( newDNA.Shapes.Length )]; shape.PreviousState = shape.Clone() as Shape; shape.Color = Color.FromArgb( rand.Next( task.ProjectOptions.MinAlpha, 256 ), rand.NextByte(), rand.NextByte(), rand.NextByte() ); double area, maxArea = MaxPolygonArea * task.ImageWidth * task.ImageHeight; do { for( int i = 0; i < shape.Points.Length; i++ ) { shape.Points[i] = new PointF( rand.NextFloat( -maxOverlap, task.ImageWidth + maxOverlap ), rand.NextFloat( -maxOverlap, task.ImageHeight + maxOverlap ) ); } area = CalculateArea( shape.Points ); } while( area > maxArea ); newDNA.LastMutation = MutationType.ReplaceShape; return newDNA; }
static void ChangeColor( Random rand, Shape shape, TaskState task ) { shape.PreviousState = shape.Clone() as Shape; switch( rand.Next( 4 ) ) { case 0: shape.Color = Color.FromArgb( rand.NextByte( task.ProjectOptions.MinAlpha, 256 ), shape.Color.R, shape.Color.G, shape.Color.B ); break; case 1: shape.Color = Color.FromArgb( shape.Color.A, rand.NextByte(), shape.Color.G, shape.Color.B ); break; case 2: shape.Color = Color.FromArgb( shape.Color.A, shape.Color.R, rand.NextByte(), shape.Color.B ); break; case 3: shape.Color = Color.FromArgb( shape.Color.A, shape.Color.R, shape.Color.G, rand.NextByte() ); break; } }
void MutateShape( Random rand, DNA dna, Shape shape, TaskState task ) { shape.PreviousState = shape.Clone() as Shape; switch( rand.Next( 10 ) ) { case 0: shape.Color = Color.FromArgb( (byte)rand.Next( task.ProjectOptions.MinAlpha, 256 ), shape.Color.R, shape.Color.G, shape.Color.B ); dna.LastMutation = MutationType.ReplaceColor; if( rand.Next( 10 ) == 0 ) { MutateMultiplePoints( shape, rand, dna, task ); dna.LastMutation = MutationType.ReplaceShape; } break; case 1: shape.Color = Color.FromArgb( shape.Color.A, rand.NextByte(), shape.Color.G, shape.Color.B ); dna.LastMutation = MutationType.ReplaceColor; if( rand.Next( 10 ) == 0 ) { MutateMultiplePoints( shape, rand, dna, task ); dna.LastMutation = MutationType.ReplaceShape; } break; case 2: shape.Color = Color.FromArgb( shape.Color.A, shape.Color.R, rand.NextByte(), shape.Color.B ); dna.LastMutation = MutationType.ReplaceColor; if( rand.Next( 10 ) == 0 ) { MutateMultiplePoints( shape, rand, dna, task ); dna.LastMutation = MutationType.ReplaceShape; } break; case 3: shape.Color = Color.FromArgb( shape.Color.A, shape.Color.R, shape.Color.G, rand.NextByte() ); dna.LastMutation = MutationType.ReplaceColor; if( rand.Next( 10 ) == 0 ) { MutateMultiplePoints( shape, rand, dna, task ); dna.LastMutation = MutationType.ReplaceShape; } break; default: MutateMultiplePoints( shape, rand, dna, task ); break; } }
public static Texture2D GetGrainTexture(IGraphicsService graphicsService, int size) { if (graphicsService == null) throw new ArgumentNullException("graphicsService"); if (size < 1) throw new ArgumentOutOfRangeException("size", "size must be greater than 0."); var textures = GetNoiseTextures(graphicsService); Texture2D grainTexture; if (!textures.GrainTextures.TryGetValue(size, out grainTexture) || grainTexture.IsDisposed) { grainTexture = new Texture2D(graphicsService.GraphicsDevice, size, size, false, SurfaceFormat.Color); Color[] data = new Color[size * size]; var random = new Random(1234567); for (int i = 0; i < data.Length; i++) data[i] = new Color(random.NextByte(), random.NextByte(), random.NextByte(), random.NextByte()); grainTexture.SetData(data); textures.GrainTextures[size] = grainTexture; } return grainTexture; }