Files
FlaxEngine/Source/Editor/Utilities/Utils.cs
2021-01-02 14:28:49 +01:00

1737 lines
67 KiB
C#

// Copyright (c) 2012-2021 Wojciech Figat. All rights reserved.
using System;
using System.Collections.Generic;
using System.Diagnostics.CodeAnalysis;
using System.IO;
using System.Runtime.InteropServices;
using FlaxEditor.SceneGraph;
using FlaxEditor.Scripting;
using FlaxEngine;
using FlaxEngine.GUI;
using Newtonsoft.Json;
namespace FlaxEditor.Utilities
{
/// <summary>
/// Editor utilities and helper functions.
/// </summary>
public static class Utils
{
private static readonly string[] MemorySizePostfixes =
{
"B",
"kB",
"MB",
"GB",
"TB",
"PB"
};
internal enum VariantType
{
Null = 0,
Void,
Bool,
Int,
Uint,
Int64,
Uint64,
Float,
Double,
Pointer,
String,
Object,
Structure,
Asset,
Blob,
Enum,
Vector2,
Vector3,
Vector4,
Color,
Guid,
BoundingBox,
BoundingSphere,
Quaternion,
Transform,
Rectangle,
Ray,
Matrix,
Array,
Dictionary,
ManagedObject,
Typename,
}
/// <summary>
/// The name of the Flax Engine C# assembly name.
/// </summary>
public static readonly string FlaxEngineAssemblyName = "FlaxEngine.CSharp";
/// <summary>
/// Formats the amount of bytes to get a human-readable data size in bytes with abbreviation. Eg. 32 kB
/// </summary>
/// <param name="bytes">The bytes.</param>
/// <returns>The formatted amount of bytes.</returns>
public static string FormatBytesCount(int bytes)
{
int order = 0;
while (bytes >= 1024 && order < MemorySizePostfixes.Length - 1)
{
order++;
bytes = bytes / 1024;
}
return string.Format("{0:0.##} {1}", bytes, MemorySizePostfixes[order]);
}
/// <summary>
/// Formats the amount of bytes to get a human-readable data size in bytes with abbreviation. Eg. 32 kB
/// </summary>
/// <param name="bytes">The bytes.</param>
/// <returns>The formatted amount of bytes.</returns>
public static string FormatBytesCount(ulong bytes)
{
int order = 0;
while (bytes >= 1024 && order < MemorySizePostfixes.Length - 1)
{
order++;
bytes = bytes / 1024;
}
return string.Format("{0:0.##} {1}", bytes, MemorySizePostfixes[order]);
}
/// <summary>
/// The colors for the keyframes used by the curve editor.
/// </summary>
internal static readonly Color[] CurveKeyframesColors =
{
Color.OrangeRed,
Color.ForestGreen,
Color.CornflowerBlue,
Color.White,
};
/// <summary>
/// The time/value axes tick steps for editors with timeline.
/// </summary>
internal static readonly float[] CurveTickSteps =
{
0.0000001f, 0.0000005f, 0.000001f, 0.000005f, 0.00001f,
0.00005f, 0.0001f, 0.0005f, 0.001f, 0.005f,
0.01f, 0.05f, 0.1f, 0.5f, 1,
5, 10, 50, 100, 500,
1000, 5000, 10000, 50000, 100000,
500000, 1000000, 5000000, 10000000, 100000000
};
/// <summary>
/// Determines whether the specified path string contains any invalid character.
/// </summary>
/// <param name="path">The path.</param>
/// <returns><c>true</c> if the given string cannot be used as a path because it contains one or more illegal characters; otherwise, <c>false</c>.</returns>
public static bool HasInvalidPathChar(string path)
{
char[] illegalChars =
{
'?',
'\\',
'/',
'\"',
'<',
'>',
'|',
':',
'*',
'\u0001',
'\u0002',
'\u0003',
'\u0004',
'\u0005',
'\u0006',
'\a',
'\b',
'\t',
'\n',
'\v',
'\f',
'\r',
'\u000E',
'\u000F',
'\u0010',
'\u0011',
'\u0012',
'\u0013',
'\u0014',
'\u0015',
'\u0016',
'\u0017',
'\u0018',
'\u0019',
'\u001A',
'\u001B',
'\u001C',
'\u001D',
'\u001E',
'\u001F'
};
return path.IndexOfAny(illegalChars) != -1;
}
internal static Transform[] GetTransformsAndBounds(List<SceneGraphNode> nodes, out BoundingBox bounds)
{
var transforms = new Transform[nodes.Count];
bounds = BoundingBox.Empty;
for (int i = 0; i < nodes.Count; i++)
{
transforms[i] = nodes[i].Transform;
if (nodes[i] is ActorNode actorNode)
{
bounds = BoundingBox.Merge(bounds, actorNode.Actor.BoxWithChildren);
}
}
return transforms;
}
/// <summary>
/// Removes the file if it exists.
/// </summary>
/// <param name="file">The file path.</param>
public static void RemoveFileIfExists(string file)
{
if (File.Exists(file))
File.Delete(file);
}
/// <summary>
/// Copies the directory. Supports subdirectories copy with files override option.
/// </summary>
/// <param name="srcDirectoryPath">The source directory path.</param>
/// <param name="dstDirectoryPath">The destination directory path.</param>
/// <param name="copySubDirs">If set to <c>true</c> copy subdirectories.</param>
/// <param name="overrideFiles">if set to <c>true</c> override existing files.</param>
public static void DirectoryCopy(string srcDirectoryPath, string dstDirectoryPath, bool copySubDirs = true, bool overrideFiles = false)
{
var dir = new DirectoryInfo(srcDirectoryPath);
if (!dir.Exists)
{
throw new DirectoryNotFoundException("Missing source directory to copy. " + srcDirectoryPath);
}
if (!Directory.Exists(dstDirectoryPath))
{
Directory.CreateDirectory(dstDirectoryPath);
}
var files = dir.GetFiles();
for (int i = 0; i < files.Length; i++)
{
string tmp = Path.Combine(dstDirectoryPath, files[i].Name);
files[i].CopyTo(tmp, overrideFiles);
}
if (copySubDirs)
{
var dirs = dir.GetDirectories();
for (int i = 0; i < dirs.Length; i++)
{
string tmp = Path.Combine(dstDirectoryPath, dirs[i].Name);
DirectoryCopy(dirs[i].FullName, tmp, true, overrideFiles);
}
}
}
/// <summary>
/// Converts the raw bytes into the structure. Supported only for structures with simple types and no GC objects.
/// </summary>
/// <typeparam name="T">The structure type.</typeparam>
/// <param name="bytes">The data bytes.</param>
/// <returns>The structure.</returns>
public static T ByteArrayToStructure<T>(byte[] bytes) where T : struct
{
// #stupid c#
GCHandle handle = GCHandle.Alloc(bytes, GCHandleType.Pinned);
T stuff = (T)Marshal.PtrToStructure(handle.AddrOfPinnedObject(), typeof(T));
handle.Free();
return stuff;
}
/// <summary>
/// Converts the raw bytes into the structure. Supported only for structures with simple types and no GC objects.
/// </summary>
/// <param name="bytes">The data bytes.</param>
/// <param name="type">The structure type.</param>
/// <returns>The structure.</returns>
public static object ByteArrayToStructure(byte[] bytes, Type type)
{
// #stupid c#
GCHandle handle = GCHandle.Alloc(bytes, GCHandleType.Pinned);
object stuff = Marshal.PtrToStructure(handle.AddrOfPinnedObject(), type);
handle.Free();
return stuff;
}
/// <summary>
/// Converts the raw bytes into the structure. Supported only for structures with simple types and no GC objects.
/// </summary>
/// <typeparam name="T">The structure type.</typeparam>
/// <param name="bytes">The data bytes.</param>
/// <param name="result">The result.</param>
public static void ByteArrayToStructure<T>(byte[] bytes, out T result) where T : struct
{
// #stupid c#
GCHandle handle = GCHandle.Alloc(bytes, GCHandleType.Pinned);
result = (T)Marshal.PtrToStructure(handle.AddrOfPinnedObject(), typeof(T));
handle.Free();
}
/// <summary>
/// Converts the structure to the raw bytes. Supported only for structures with simple types and no GC objects.
/// </summary>
/// <typeparam name="T">The structure type.</typeparam>
/// <param name="value">The structure value.</param>
/// <returns>The bytes array that contains a structure data.</returns>
public static byte[] StructureToByteArray<T>(ref T value) where T : struct
{
// #stupid c#
int size = Marshal.SizeOf(typeof(T));
byte[] arr = new byte[size];
IntPtr ptr = Marshal.AllocHGlobal(size);
Marshal.StructureToPtr(value, ptr, true);
Marshal.Copy(ptr, arr, 0, size);
Marshal.FreeHGlobal(ptr);
return arr;
}
/// <summary>
/// Converts the structure to the raw bytes. Supported only for structures with simple types and no GC objects.
/// </summary>
/// <param name="value">The structure value.</param>
/// <param name="type">The structure type.</param>
/// <returns>The bytes array that contains a structure data.</returns>
public static byte[] StructureToByteArray(object value, Type type)
{
// #stupid c#
int size = Marshal.SizeOf(type);
byte[] arr = new byte[size];
IntPtr ptr = Marshal.AllocHGlobal(size);
Marshal.StructureToPtr(value, ptr, true);
Marshal.Copy(ptr, arr, 0, size);
Marshal.FreeHGlobal(ptr);
return arr;
}
internal static unsafe string ReadStr(this BinaryReader stream, int check)
{
int length = stream.ReadInt32();
if (length > 0 && length < 4 * 1024)
{
var str = stream.ReadBytes(length * 2);
fixed (byte* strPtr = str)
{
var ptr = (char*)strPtr;
for (int j = 0; j < length; j++)
ptr[j] = (char)(ptr[j] ^ check);
}
return System.Text.Encoding.Unicode.GetString(str);
}
return string.Empty;
}
internal static unsafe string ReadStrAnsi(this BinaryReader stream, int check)
{
int length = stream.ReadInt32();
if (length > 0 && length < 4 * 1024)
{
var str = stream.ReadBytes(length);
fixed (byte* strPtr = str)
{
var ptr = strPtr;
for (int j = 0; j < length; j++)
ptr[j] = (byte)(ptr[j] ^ check);
}
return System.Text.Encoding.ASCII.GetString(str);
}
return string.Empty;
}
internal static unsafe void WriteStr(this BinaryWriter stream, string str, int check)
{
int length = str?.Length ?? 0;
stream.Write(length);
if (length == 0)
return;
var bytes = System.Text.Encoding.Unicode.GetBytes(str);
if (bytes.Length != length * 2)
throw new ArgumentException();
fixed (byte* bytesPtr = bytes)
{
var ptr = (char*)bytesPtr;
for (int j = 0; j < length; j++)
ptr[j] = (char)(ptr[j] ^ check);
}
stream.Write(bytes);
}
internal static unsafe void WriteStrAnsi(this BinaryWriter stream, string str, int check)
{
int length = str?.Length ?? 0;
stream.Write(length);
if (length == 0)
return;
var bytes = System.Text.Encoding.ASCII.GetBytes(str);
if (bytes.Length != length)
throw new ArgumentException();
fixed (byte* bytesPtr = bytes)
{
var ptr = bytesPtr;
for (int j = 0; j < length; j++)
ptr[j] = (byte)(ptr[j] ^ check);
}
stream.Write(bytes);
}
internal static VariantType ToVariantType(this Type type)
{
VariantType variantType;
if (type == null)
variantType = VariantType.Null;
else if (type == typeof(void))
variantType = VariantType.Void;
else if (type == typeof(bool))
variantType = VariantType.Bool;
else if (type == typeof(int))
variantType = VariantType.Int;
else if (type == typeof(uint))
variantType = VariantType.Uint;
else if (type == typeof(long))
variantType = VariantType.Int64;
else if (type == typeof(ulong))
variantType = VariantType.Uint64;
else if (type.IsEnum)
variantType = VariantType.Enum;
else if (type == typeof(float))
variantType = VariantType.Float;
else if (type == typeof(double))
variantType = VariantType.Double;
else if (type == typeof(IntPtr))
variantType = VariantType.Pointer;
else if (type == typeof(string))
variantType = VariantType.String;
else if (type == typeof(Type) || type == typeof(ScriptType))
variantType = VariantType.Typename;
else if (typeof(Asset).IsAssignableFrom(type))
variantType = VariantType.Asset;
else if (typeof(FlaxEngine.Object).IsAssignableFrom(type))
variantType = VariantType.Object;
else if (type == typeof(BoundingBox))
variantType = VariantType.BoundingBox;
else if (type == typeof(Transform))
variantType = VariantType.Transform;
else if (type == typeof(Ray))
variantType = VariantType.Ray;
else if (type == typeof(Matrix))
variantType = VariantType.Matrix;
else if (type == typeof(Vector2))
variantType = VariantType.Vector2;
else if (type == typeof(Vector3))
variantType = VariantType.Vector3;
else if (type == typeof(Vector4))
variantType = VariantType.Vector4;
else if (type == typeof(Color))
variantType = VariantType.Color;
else if (type == typeof(Guid))
variantType = VariantType.Guid;
else if (type == typeof(Quaternion))
variantType = VariantType.Quaternion;
else if (type == typeof(Rectangle))
variantType = VariantType.Rectangle;
else if (type == typeof(BoundingSphere))
variantType = VariantType.BoundingSphere;
else if (type.IsValueType)
variantType = VariantType.Structure;
else if (type == typeof(byte[]))
variantType = VariantType.Blob;
else if (type == typeof(object[]))
variantType = VariantType.Array;
else if (type == typeof(Dictionary<object, object>))
variantType = VariantType.Dictionary;
else if (type.IsPointer || type.IsByRef)
{
// Find underlying type without `*` or `&`
var typeName = type.FullName;
type = TypeUtils.GetManagedType(typeName.Substring(0, typeName.Length - 1));
return ToVariantType(type);
}
else
variantType = VariantType.ManagedObject;
return variantType;
}
internal static void WriteVariantType(this BinaryWriter stream, ScriptType type)
{
if (type == ScriptType.Null)
{
stream.Write((byte)0);
stream.Write(0);
return;
}
if (type.Type != null)
{
WriteVariantType(stream, type.Type);
}
else
{
if (type.IsEnum)
stream.Write((byte)VariantType.Enum);
else if (type.IsValueType)
stream.Write((byte)VariantType.Structure);
else
stream.Write((byte)VariantType.Object);
stream.Write(int.MaxValue);
stream.WriteStrAnsi(type.TypeName, 77);
}
}
internal static void WriteVariantType(this BinaryWriter stream, Type type)
{
if (type == null)
{
stream.Write((byte)0);
stream.Write(0);
return;
}
var variantType = ToVariantType(type);
stream.Write((byte)variantType);
switch (variantType)
{
case VariantType.Object:
if (type != typeof(FlaxEngine.Object))
{
stream.Write(int.MaxValue);
stream.WriteStrAnsi(type.FullName, 77);
}
else
stream.Write(0);
break;
case VariantType.Asset:
if (type != typeof(Asset))
{
stream.Write(int.MaxValue);
stream.WriteStrAnsi(type.FullName, 77);
}
else
stream.Write(0);
break;
case VariantType.Enum:
case VariantType.Structure:
stream.Write(int.MaxValue);
stream.WriteStrAnsi(type.FullName, 77);
break;
default:
stream.Write(0);
break;
}
}
internal static Guid ReadGuid(this BinaryReader stream)
{
// TODO: use static bytes array to reduce dynamic allocs
return new Guid(stream.ReadBytes(16));
}
internal static void WriteGuid(this BinaryWriter stream, ref Guid value)
{
// TODO: use static bytes array to reduce dynamic allocs
stream.Write(value.ToByteArray());
}
internal static Rectangle ReadRectangle(this BinaryReader stream)
{
return new Rectangle(stream.ReadSingle(), stream.ReadSingle(), stream.ReadSingle(), stream.ReadSingle());
}
internal static void WriteRectangle(this BinaryWriter stream, ref Rectangle value)
{
stream.Write(value.Location.X);
stream.Write(value.Location.Y);
stream.Write(value.Size.X);
stream.Write(value.Size.Y);
}
internal static void ReadCommonValue(this BinaryReader stream, ref object value)
{
byte type = stream.ReadByte();
switch (type)
{
case 0: // CommonType::Bool:
value = stream.ReadByte() != 0;
break;
case 1: // CommonType::Integer:
{
value = stream.ReadInt32();
}
break;
case 2: // CommonType::Float:
{
value = stream.ReadSingle();
}
break;
case 3: // CommonType::Vector2:
{
value = stream.ReadVector2();
}
break;
case 4: // CommonType::Vector3:
{
value = stream.ReadVector3();
}
break;
case 5: // CommonType::Vector4:
{
value = stream.ReadVector4();
}
break;
case 6: // CommonType::Color:
{
value = stream.ReadColor();
}
break;
case 7: // CommonType::Guid:
{
value = stream.ReadGuid();
}
break;
case 8: // CommonType::String:
{
int length = stream.ReadInt32();
if (length <= 0)
{
value = string.Empty;
}
else
{
var data = new char[length];
for (int i = 0; i < length; i++)
{
var c = stream.ReadUInt16();
data[i] = (char)(c ^ 953);
}
value = new string(data);
}
break;
}
case 9: // CommonType::Box:
{
value = new BoundingBox(new Vector3(stream.ReadSingle(), stream.ReadSingle(), stream.ReadSingle()),
new Vector3(stream.ReadSingle(), stream.ReadSingle(), stream.ReadSingle()));
}
break;
case 10: // CommonType::Rotation:
{
value = stream.ReadQuaternion();
}
break;
case 11: // CommonType::Transform:
{
value = new Transform(new Vector3(stream.ReadSingle(), stream.ReadSingle(), stream.ReadSingle()),
new Quaternion(stream.ReadSingle(), stream.ReadSingle(), stream.ReadSingle(), stream.ReadSingle()),
new Vector3(stream.ReadSingle(), stream.ReadSingle(), stream.ReadSingle()));
}
break;
case 12: // CommonType::Sphere:
{
value = new BoundingSphere(new Vector3(stream.ReadSingle(), stream.ReadSingle(), stream.ReadSingle()),
stream.ReadSingle());
}
break;
case 13: // CommonType::Rect:
{
value = new Rectangle(new Vector2(stream.ReadSingle(), stream.ReadSingle()),
new Vector2(stream.ReadSingle(), stream.ReadSingle()));
}
break;
case 15: // CommonType::Matrix
{
value = new Matrix(stream.ReadSingle(), stream.ReadSingle(), stream.ReadSingle(), stream.ReadSingle(),
stream.ReadSingle(), stream.ReadSingle(), stream.ReadSingle(), stream.ReadSingle(),
stream.ReadSingle(), stream.ReadSingle(), stream.ReadSingle(), stream.ReadSingle(),
stream.ReadSingle(), stream.ReadSingle(), stream.ReadSingle(), stream.ReadSingle());
break;
}
case 16: // CommonType::Blob
{
int length = stream.ReadInt32();
value = stream.ReadBytes(length);
break;
}
case 18: // CommonType::Ray
{
value = new Ray(new Vector3(stream.ReadSingle(), stream.ReadSingle(), stream.ReadSingle()),
new Vector3(stream.ReadSingle(), stream.ReadSingle(), stream.ReadSingle()));
break;
}
default: throw new SystemException();
}
}
internal static ScriptType ReadVariantScriptType(this BinaryReader stream)
{
var variantType = (VariantType)stream.ReadByte();
var typeNameLength = stream.ReadInt32();
if (typeNameLength == int.MaxValue)
{
typeNameLength = stream.ReadInt32();
var data = new byte[typeNameLength];
for (int i = 0; i < typeNameLength; i++)
{
var c = stream.ReadByte();
data[i] = (byte)(c ^ 77);
}
var typeName = System.Text.Encoding.ASCII.GetString(data);
return TypeUtils.GetType(typeName);
}
if (typeNameLength > 0)
{
// [Deprecated on 27.08.2020, expires on 27.08.2021]
var data = new char[typeNameLength];
for (int i = 0; i < typeNameLength; i++)
{
var c = stream.ReadUInt16();
data[i] = (char)(c ^ 77);
}
var typeName = new string(data);
return TypeUtils.GetType(typeName);
}
switch (variantType)
{
case VariantType.Null: return ScriptType.Null;
case VariantType.Void: return new ScriptType(typeof(void));
case VariantType.Bool: return new ScriptType(typeof(bool));
case VariantType.Int: return new ScriptType(typeof(int));
case VariantType.Uint: return new ScriptType(typeof(uint));
case VariantType.Int64: return new ScriptType(typeof(long));
case VariantType.Uint64: return new ScriptType(typeof(ulong));
case VariantType.Float: return new ScriptType(typeof(float));
case VariantType.Double: return new ScriptType(typeof(double));
case VariantType.Pointer: return new ScriptType(typeof(IntPtr));
case VariantType.String: return new ScriptType(typeof(string));
case VariantType.Typename: return new ScriptType(typeof(Type));
case VariantType.Object: return new ScriptType(typeof(FlaxEngine.Object));
case VariantType.Asset: return new ScriptType(typeof(Asset));
case VariantType.Vector2: return new ScriptType(typeof(Vector2));
case VariantType.Vector3: return new ScriptType(typeof(Vector3));
case VariantType.Vector4: return new ScriptType(typeof(Vector4));
case VariantType.Color: return new ScriptType(typeof(Color));
case VariantType.Guid: return new ScriptType(typeof(Guid));
case VariantType.BoundingBox: return new ScriptType(typeof(BoundingBox));
case VariantType.BoundingSphere: return new ScriptType(typeof(BoundingSphere));
case VariantType.Quaternion: return new ScriptType(typeof(Quaternion));
case VariantType.Transform: return new ScriptType(typeof(Transform));
case VariantType.Rectangle: return new ScriptType(typeof(Rectangle));
case VariantType.Ray: return new ScriptType(typeof(Ray));
case VariantType.Matrix: return new ScriptType(typeof(Matrix));
case VariantType.Array: return new ScriptType(typeof(object[]));
case VariantType.Dictionary: return new ScriptType(typeof(Dictionary<object, object>));
case VariantType.ManagedObject: return new ScriptType(typeof(object));
default: throw new ArgumentOutOfRangeException($"Unknown Variant Type {variantType} without typename.");
}
}
internal static Type ReadVariantType(this BinaryReader stream)
{
var variantType = (VariantType)stream.ReadByte();
var typeNameLength = stream.ReadInt32();
if (typeNameLength == int.MaxValue)
{
typeNameLength = stream.ReadInt32();
var data = new byte[typeNameLength];
for (int i = 0; i < typeNameLength; i++)
{
var c = stream.ReadByte();
data[i] = (byte)(c ^ 77);
}
var typeName = System.Text.Encoding.ASCII.GetString(data);
return TypeUtils.GetType(typeName).Type;
}
if (typeNameLength > 0)
{
// [Deprecated on 27.08.2020, expires on 27.08.2021]
var data = new char[typeNameLength];
for (int i = 0; i < typeNameLength; i++)
{
var c = stream.ReadUInt16();
data[i] = (char)(c ^ 77);
}
var typeName = new string(data);
return TypeUtils.GetType(typeName).Type;
}
switch (variantType)
{
case VariantType.Null: return null;
case VariantType.Void: return typeof(void);
case VariantType.Bool: return typeof(bool);
case VariantType.Int: return typeof(int);
case VariantType.Uint: return typeof(uint);
case VariantType.Int64: return typeof(long);
case VariantType.Uint64: return typeof(ulong);
case VariantType.Float: return typeof(float);
case VariantType.Double: return typeof(double);
case VariantType.Pointer: return typeof(IntPtr);
case VariantType.String: return typeof(string);
case VariantType.Typename: return typeof(Type);
case VariantType.Object: return typeof(FlaxEngine.Object);
case VariantType.Asset: return typeof(Asset);
case VariantType.Vector2: return typeof(Vector2);
case VariantType.Vector3: return typeof(Vector3);
case VariantType.Vector4: return typeof(Vector4);
case VariantType.Color: return typeof(Color);
case VariantType.Guid: return typeof(Guid);
case VariantType.BoundingBox: return typeof(BoundingBox);
case VariantType.BoundingSphere: return typeof(BoundingSphere);
case VariantType.Quaternion: return typeof(Quaternion);
case VariantType.Transform: return typeof(Transform);
case VariantType.Rectangle: return typeof(Rectangle);
case VariantType.Ray: return typeof(Ray);
case VariantType.Matrix: return typeof(Matrix);
case VariantType.Array: return typeof(object[]);
case VariantType.Dictionary: return typeof(Dictionary<object, object>);
case VariantType.ManagedObject: return typeof(object);
default: throw new ArgumentOutOfRangeException($"Unknown Variant Type {variantType} without typename.");
}
}
internal static unsafe object ReadVariant(this BinaryReader stream)
{
Type type = null;
var variantType = (VariantType)stream.ReadByte();
var typeNameLength = stream.ReadInt32();
if (typeNameLength == int.MaxValue)
{
typeNameLength = stream.ReadInt32();
var data = new byte[typeNameLength];
for (int i = 0; i < typeNameLength; i++)
{
var c = stream.ReadByte();
data[i] = (byte)(c ^ 77);
}
var typeName = System.Text.Encoding.ASCII.GetString(data);
type = TypeUtils.GetType(typeName).Type;
}
else if (typeNameLength > 0)
{
// [Deprecated on 27.08.2020, expires on 27.08.2021]
var data = new char[typeNameLength];
for (int i = 0; i < typeNameLength; i++)
{
var c = stream.ReadUInt16();
data[i] = (char)(c ^ 77);
}
var typeName = new string(data);
type = TypeUtils.GetType(typeName).Type;
}
switch (variantType)
{
case VariantType.Null:
case VariantType.ManagedObject:
case VariantType.Void: return null;
case VariantType.Bool: return stream.ReadByte() != 0;
case VariantType.Int: return stream.ReadInt32();
case VariantType.Uint: return stream.ReadUInt32();
case VariantType.Int64: return stream.ReadInt64();
case VariantType.Uint64: return stream.ReadUInt64();
case VariantType.Float: return stream.ReadSingle();
case VariantType.Double: return stream.ReadDouble();
case VariantType.Pointer: return new IntPtr((void*)stream.ReadUInt64());
case VariantType.String:
{
typeNameLength = stream.ReadInt32();
var data = new char[typeNameLength];
for (int i = 0; i < typeNameLength; i++)
{
var c = stream.ReadUInt16();
data[i] = (char)(c ^ -14);
}
return new string(data);
}
case VariantType.Object:
{
var id = stream.ReadGuid();
return FlaxEngine.Object.Find(ref id, type ?? typeof(FlaxEngine.Object));
}
case VariantType.Structure:
{
if (type == null)
throw new Exception("Missing structure type of the Variant.");
var data = stream.ReadBytes(stream.ReadInt32());
return ByteArrayToStructure(data, type);
}
case VariantType.Asset:
{
var id = stream.ReadGuid();
return FlaxEngine.Object.Find(ref id, type ?? typeof(Asset));
}
case VariantType.Blob: return stream.ReadBytes(stream.ReadInt32());
case VariantType.Enum:
{
if (type == null)
throw new Exception("Missing enum type of the Variant.");
return Enum.ToObject(type, stream.ReadUInt64());
}
case VariantType.Vector2: return stream.ReadVector2();
case VariantType.Vector3: return stream.ReadVector3();
case VariantType.Vector4: return stream.ReadVector4();
case VariantType.Color: return stream.ReadColor();
case VariantType.Guid: return stream.ReadGuid();
case VariantType.BoundingBox: return stream.ReadBoundingBox();
case VariantType.BoundingSphere: return stream.ReadBoundingSphere();
case VariantType.Quaternion: return stream.ReadQuaternion();
case VariantType.Transform: return stream.ReadTransform();
case VariantType.Rectangle: return stream.ReadRectangle();
case VariantType.Ray: return stream.ReadRay();
case VariantType.Matrix: return stream.ReadMatrix();
case VariantType.Array:
{
var count = stream.ReadInt32();
var result = new object[count];
for (int i = 0; i < count; i++)
result[i] = stream.ReadVariant();
return result;
}
case VariantType.Dictionary:
{
var count = stream.ReadInt32();
var result = new Dictionary<object, object>();
for (int i = 0; i < count; i++)
result.Add(stream.ReadVariant(), stream.ReadVariant());
return result;
}
case VariantType.Typename:
{
typeNameLength = stream.ReadInt32();
var data = new byte[typeNameLength];
for (int i = 0; i < typeNameLength; i++)
{
var c = stream.ReadByte();
data[i] = (byte)(c ^ -14);
}
var typeName = System.Text.Encoding.ASCII.GetString(data);
return TypeUtils.GetType(typeName);
}
default: throw new ArgumentOutOfRangeException($"Unknown Variant Type {variantType}." + (type != null ? $" Type: {type.FullName}" : string.Empty));
}
}
internal static void WriteCommonValue(this BinaryWriter stream, object value)
{
if (value is bool asBool)
{
stream.Write((byte)0);
stream.Write((byte)(asBool ? 1 : 0));
}
else if (value is int asInt)
{
stream.Write((byte)1);
stream.Write(asInt);
}
else if (value is long asLong)
{
stream.Write((byte)1);
stream.Write((int)asLong);
}
else if (value is float asFloat)
{
stream.Write((byte)2);
stream.Write(asFloat);
}
else if (value is double asDouble)
{
stream.Write((byte)2);
stream.Write((float)asDouble);
}
else if (value is Vector2 asVector2)
{
stream.Write((byte)3);
stream.Write(asVector2.X);
stream.Write(asVector2.Y);
}
else if (value is Vector3 asVector3)
{
stream.Write((byte)4);
stream.Write(asVector3.X);
stream.Write(asVector3.Y);
stream.Write(asVector3.Z);
}
else if (value is Vector4 asVector4)
{
stream.Write((byte)5);
stream.Write(asVector4.X);
stream.Write(asVector4.Y);
stream.Write(asVector4.Z);
stream.Write(asVector4.W);
}
else if (value is Color asColor)
{
stream.Write((byte)6);
stream.Write(asColor.R);
stream.Write(asColor.G);
stream.Write(asColor.B);
stream.Write(asColor.A);
}
else if (value is Guid asGuid)
{
stream.Write((byte)7);
stream.WriteGuid(ref asGuid);
}
else if (value is string asString)
{
stream.Write((byte)8);
stream.Write(asString.Length);
for (int i = 0; i < asString.Length; i++)
stream.Write((ushort)(asString[i] ^ -14));
}
else if (value is BoundingBox asBox)
{
stream.Write((byte)9);
stream.Write(asBox.Minimum.X);
stream.Write(asBox.Minimum.Y);
stream.Write(asBox.Minimum.Z);
stream.Write(asBox.Maximum.X);
stream.Write(asBox.Maximum.Y);
stream.Write(asBox.Maximum.Z);
}
else if (value is Quaternion asRotation)
{
stream.Write((byte)10);
stream.Write(asRotation.X);
stream.Write(asRotation.Y);
stream.Write(asRotation.Z);
stream.Write(asRotation.X);
}
else if (value is Transform asTransform)
{
stream.Write((byte)11);
stream.Write(asTransform.Translation.X);
stream.Write(asTransform.Translation.Y);
stream.Write(asTransform.Translation.Z);
stream.Write(asTransform.Orientation.X);
stream.Write(asTransform.Orientation.Y);
stream.Write(asTransform.Orientation.Z);
stream.Write(asTransform.Orientation.X);
stream.Write(asTransform.Scale.X);
stream.Write(asTransform.Scale.Y);
stream.Write(asTransform.Scale.Z);
}
else if (value is BoundingSphere asSphere)
{
stream.Write((byte)12);
stream.Write(asSphere.Center.X);
stream.Write(asSphere.Center.Y);
stream.Write(asSphere.Center.Z);
stream.Write(asSphere.Radius);
}
else if (value is Rectangle asRect)
{
stream.Write((byte)13);
stream.Write(asRect.Location.X);
stream.Write(asRect.Location.Y);
stream.Write(asRect.Size.X);
stream.Write(asRect.Size.Y);
}
else if (value is Matrix asMatrix)
{
stream.Write((byte)15);
stream.Write(asMatrix.M11);
stream.Write(asMatrix.M12);
stream.Write(asMatrix.M13);
stream.Write(asMatrix.M14);
stream.Write(asMatrix.M21);
stream.Write(asMatrix.M22);
stream.Write(asMatrix.M23);
stream.Write(asMatrix.M24);
stream.Write(asMatrix.M31);
stream.Write(asMatrix.M32);
stream.Write(asMatrix.M33);
stream.Write(asMatrix.M34);
stream.Write(asMatrix.M41);
stream.Write(asMatrix.M42);
stream.Write(asMatrix.M43);
stream.Write(asMatrix.M44);
}
else if (value is byte[] asBlob)
{
stream.Write((byte)16);
stream.Write(asBlob.Length);
stream.Write(asBlob);
}
else if (value is Ray asRay)
{
stream.Write((byte)18);
stream.Write(asRay.Position.X);
stream.Write(asRay.Position.Y);
stream.Write(asRay.Position.Z);
stream.Write(asRay.Direction.X);
stream.Write(asRay.Direction.Y);
stream.Write(asRay.Direction.Z);
}
else
{
throw new NotSupportedException(string.Format("Invalid Common Value type {0}", value != null ? value.GetType().ToString() : "null"));
}
}
internal static void WriteVariant(this BinaryWriter stream, object value)
{
if (value == null)
{
stream.Write((byte)0);
stream.Write(0);
return;
}
var type = value.GetType();
var variantType = ToVariantType(type);
stream.Write((byte)variantType);
switch (variantType)
{
case VariantType.Object:
if (type != typeof(FlaxEngine.Object))
{
stream.Write(int.MaxValue);
stream.WriteStrAnsi(type.FullName, 77);
}
else
stream.Write(0);
break;
case VariantType.Asset:
if (type != typeof(Asset))
{
stream.Write(int.MaxValue);
stream.WriteStrAnsi(type.FullName, 77);
}
else
stream.Write(0);
break;
case VariantType.Enum:
case VariantType.Structure:
stream.Write(int.MaxValue);
stream.WriteStrAnsi(type.FullName, 77);
break;
default:
stream.Write(0);
break;
}
Guid id;
switch (variantType)
{
case VariantType.Bool:
stream.Write((byte)((bool)value ? 1 : 0));
break;
case VariantType.Int:
stream.Write((int)value);
break;
case VariantType.Uint:
stream.Write((uint)value);
break;
case VariantType.Int64:
stream.Write((long)value);
break;
case VariantType.Uint64:
stream.Write((ulong)value);
break;
case VariantType.Float:
stream.Write((float)value);
break;
case VariantType.Double:
stream.Write((double)value);
break;
case VariantType.Pointer:
stream.Write((ulong)(IntPtr)value);
break;
case VariantType.String:
stream.WriteStr((string)value, -14);
break;
case VariantType.Object:
id = ((FlaxEngine.Object)value).ID;
stream.WriteGuid(ref id);
break;
case VariantType.Structure:
{
var data = StructureToByteArray(value, type);
stream.Write(data.Length);
stream.Write(data);
break;
}
case VariantType.Asset:
id = ((Asset)value).ID;
stream.WriteGuid(ref id);
break;
case VariantType.Blob:
stream.Write(((byte[])value).Length);
stream.Write((byte[])value);
break;
case VariantType.Enum:
stream.Write(Convert.ToUInt64(value));
break;
case VariantType.Vector2:
stream.Write((Vector2)value);
break;
case VariantType.Vector3:
stream.Write((Vector3)value);
break;
case VariantType.Vector4:
stream.Write((Vector4)value);
break;
case VariantType.Color:
stream.Write((Color)value);
break;
case VariantType.Guid:
id = (Guid)value;
stream.WriteGuid(ref id);
break;
case VariantType.BoundingBox:
stream.Write((BoundingBox)value);
break;
case VariantType.BoundingSphere:
stream.Write((BoundingSphere)value);
break;
case VariantType.Quaternion:
stream.Write((Quaternion)value);
break;
case VariantType.Transform:
stream.Write((Transform)value);
break;
case VariantType.Rectangle:
stream.Write((Rectangle)value);
break;
case VariantType.Ray:
stream.Write((Ray)value);
break;
case VariantType.Matrix:
stream.Write((Matrix)value);
break;
case VariantType.Array:
stream.Write(((object[])value).Length);
foreach (var e in (object[])value)
stream.WriteVariant(e);
break;
case VariantType.Dictionary:
stream.Write(((Dictionary<object, object>)value).Count);
foreach (var e in (Dictionary<object, object>)value)
{
stream.WriteVariant(e.Key);
stream.WriteVariant(e.Value);
}
break;
case VariantType.Typename:
if (value is Type)
stream.WriteStrAnsi(((Type)value).FullName, -14);
else if (value is ScriptType)
stream.WriteStrAnsi(((ScriptType)value).TypeName, -14);
break;
}
}
internal static void WriteVariantType(this JsonWriter stream, Type value)
{
var variantType = ToVariantType(value);
var withoutTypeName = true;
switch (variantType)
{
case VariantType.Object:
if (value != typeof(FlaxEngine.Object))
withoutTypeName = false;
break;
case VariantType.Asset:
if (value != typeof(Asset))
withoutTypeName = false;
break;
case VariantType.Enum:
case VariantType.Structure:
withoutTypeName = false;
break;
}
if (withoutTypeName)
{
stream.WriteValue((int)variantType);
}
else
{
stream.WriteStartObject();
stream.WritePropertyName("Type");
stream.WriteValue((int)variantType);
stream.WritePropertyName("TypeName");
stream.WriteValue(value.FullName);
stream.WriteEndObject();
}
}
[SuppressMessage("ReSharper", "PossibleNullReferenceException")]
[SuppressMessage("ReSharper", "AssignNullToNotNullAttribute")]
internal static void WriteVariant(this JsonWriter stream, object value)
{
var type = value?.GetType();
stream.WriteStartObject();
stream.WritePropertyName("Type");
stream.WriteVariantType(type);
stream.WritePropertyName("Value");
var variantType = ToVariantType(type);
switch (variantType)
{
case VariantType.Null:
case VariantType.ManagedObject:
case VariantType.Void:
stream.WriteStartObject();
stream.WriteEndObject();
break;
case VariantType.Bool:
stream.WriteValue((bool)value);
break;
case VariantType.Int:
stream.WriteValue((int)value);
break;
case VariantType.Uint:
stream.WriteValue((uint)value);
break;
case VariantType.Int64:
stream.WriteValue((long)value);
break;
case VariantType.Uint64:
stream.WriteValue((ulong)value);
break;
case VariantType.Float:
stream.WriteValue((float)value);
break;
case VariantType.Double:
stream.WriteValue((double)value);
break;
case VariantType.Pointer:
stream.WriteValue((ulong)(IntPtr)value);
break;
case VariantType.String:
stream.WriteValue((string)value);
break;
case VariantType.Object:
stream.WriteValue(((FlaxEngine.Object)value).ID);
break;
case VariantType.Asset:
stream.WriteValue(((Asset)value).ID);
break;
case VariantType.Blob:
stream.WriteValue(Convert.ToBase64String((byte[])value));
break;
case VariantType.Enum:
stream.WriteValue(Convert.ToUInt64(value));
break;
case VariantType.Vector2:
{
var asVector2 = (Vector2)value;
stream.WriteStartObject();
stream.WritePropertyName("X");
stream.WriteValue(asVector2.X);
stream.WritePropertyName("Y");
stream.WriteValue(asVector2.Y);
stream.WriteEndObject();
break;
}
case VariantType.Vector3:
{
var asVector3 = (Vector3)value;
stream.WriteStartObject();
stream.WritePropertyName("X");
stream.WriteValue(asVector3.X);
stream.WritePropertyName("Y");
stream.WriteValue(asVector3.Y);
stream.WritePropertyName("Z");
stream.WriteValue(asVector3.Z);
stream.WriteEndObject();
break;
}
case VariantType.Vector4:
{
var asVector4 = (Vector4)value;
stream.WriteStartObject();
stream.WritePropertyName("X");
stream.WriteValue(asVector4.X);
stream.WritePropertyName("Y");
stream.WriteValue(asVector4.Y);
stream.WritePropertyName("Z");
stream.WriteValue(asVector4.Z);
stream.WritePropertyName("W");
stream.WriteValue(asVector4.W);
stream.WriteEndObject();
break;
}
case VariantType.Color:
{
var asColor = (Color)value;
stream.WriteStartObject();
stream.WritePropertyName("R");
stream.WriteValue(asColor.R);
stream.WritePropertyName("G");
stream.WriteValue(asColor.G);
stream.WritePropertyName("B");
stream.WriteValue(asColor.B);
stream.WritePropertyName("A");
stream.WriteValue(asColor.A);
stream.WriteEndObject();
break;
}
case VariantType.Guid:
stream.WriteValue((Guid)value);
break;
case VariantType.BoundingBox:
{
var asBoundingBox = (BoundingBox)value;
stream.WriteStartObject();
stream.WritePropertyName("Minimum");
stream.WriteStartObject();
stream.WritePropertyName("X");
stream.WriteValue(asBoundingBox.Minimum.X);
stream.WritePropertyName("Y");
stream.WriteValue(asBoundingBox.Minimum.Y);
stream.WritePropertyName("Z");
stream.WriteValue(asBoundingBox.Minimum.Z);
stream.WriteEndObject();
stream.WritePropertyName("Maximum");
stream.WriteStartObject();
stream.WritePropertyName("X");
stream.WriteValue(asBoundingBox.Maximum.X);
stream.WritePropertyName("Y");
stream.WriteValue(asBoundingBox.Maximum.Y);
stream.WritePropertyName("Z");
stream.WriteValue(asBoundingBox.Maximum.Z);
stream.WriteEndObject();
stream.WriteEndObject();
break;
}
case VariantType.BoundingSphere:
{
var asBoundingSphere = (BoundingSphere)value;
stream.WriteStartObject();
stream.WritePropertyName("Center");
stream.WriteStartObject();
stream.WritePropertyName("X");
stream.WriteValue(asBoundingSphere.Center.X);
stream.WritePropertyName("Y");
stream.WriteValue(asBoundingSphere.Center.Y);
stream.WritePropertyName("Z");
stream.WriteValue(asBoundingSphere.Center.Z);
stream.WriteEndObject();
stream.WritePropertyName("Radius");
stream.WriteValue(asBoundingSphere.Radius);
stream.WriteEndObject();
break;
}
case VariantType.Quaternion:
{
var asQuaternion = (Quaternion)value;
stream.WriteStartObject();
stream.WritePropertyName("X");
stream.WriteValue(asQuaternion.X);
stream.WritePropertyName("Y");
stream.WriteValue(asQuaternion.Y);
stream.WritePropertyName("Z");
stream.WriteValue(asQuaternion.Z);
stream.WritePropertyName("W");
stream.WriteValue(asQuaternion.W);
stream.WriteEndObject();
break;
}
case VariantType.Transform:
{
var asTransform = (Transform)value;
stream.WriteStartObject();
stream.WritePropertyName("Translation");
stream.WriteStartObject();
stream.WritePropertyName("X");
stream.WriteValue(asTransform.Translation.X);
stream.WritePropertyName("Y");
stream.WriteValue(asTransform.Translation.Y);
stream.WritePropertyName("Z");
stream.WriteValue(asTransform.Translation.Z);
stream.WriteEndObject();
stream.WritePropertyName("Orientation");
stream.WriteStartObject();
stream.WritePropertyName("X");
stream.WriteValue(asTransform.Orientation.X);
stream.WritePropertyName("Y");
stream.WriteValue(asTransform.Orientation.Y);
stream.WritePropertyName("Z");
stream.WriteValue(asTransform.Orientation.Z);
stream.WritePropertyName("W");
stream.WriteValue(asTransform.Orientation.W);
stream.WriteEndObject();
stream.WritePropertyName("Scale");
stream.WriteStartObject();
stream.WritePropertyName("X");
stream.WriteValue(asTransform.Scale.X);
stream.WritePropertyName("Y");
stream.WriteValue(asTransform.Scale.Y);
stream.WritePropertyName("Z");
stream.WriteValue(asTransform.Scale.Z);
stream.WriteEndObject();
stream.WriteEndObject();
break;
}
case VariantType.Rectangle:
{
var asRectangle = (Rectangle)value;
stream.WriteStartObject();
stream.WritePropertyName("Location");
stream.WriteStartObject();
stream.WritePropertyName("X");
stream.WriteValue(asRectangle.Location.X);
stream.WritePropertyName("Y");
stream.WriteValue(asRectangle.Location.Y);
stream.WriteEndObject();
stream.WritePropertyName("Size");
stream.WriteStartObject();
stream.WritePropertyName("X");
stream.WriteValue(asRectangle.Size.X);
stream.WritePropertyName("Y");
stream.WriteValue(asRectangle.Size.Y);
stream.WriteEndObject();
stream.WriteEndObject();
break;
}
case VariantType.Ray:
{
var asRay = (Ray)value;
stream.WriteStartObject();
stream.WritePropertyName("Position");
stream.WriteStartObject();
stream.WritePropertyName("X");
stream.WriteValue(asRay.Position.X);
stream.WritePropertyName("Y");
stream.WriteValue(asRay.Position.Y);
stream.WritePropertyName("Z");
stream.WriteValue(asRay.Position.Z);
stream.WriteEndObject();
stream.WritePropertyName("Direction");
stream.WriteStartObject();
stream.WritePropertyName("X");
stream.WriteValue(asRay.Direction.X);
stream.WritePropertyName("Y");
stream.WriteValue(asRay.Direction.Y);
stream.WritePropertyName("Z");
stream.WriteValue(asRay.Direction.Z);
stream.WriteEndObject();
stream.WriteEndObject();
break;
}
case VariantType.Matrix:
{
var asMatrix = (Matrix)value;
stream.WriteStartObject();
stream.WritePropertyName("M11");
stream.WriteValue(asMatrix.M11);
stream.WritePropertyName("M12");
stream.WriteValue(asMatrix.M12);
stream.WritePropertyName("M13");
stream.WriteValue(asMatrix.M13);
stream.WritePropertyName("M14");
stream.WriteValue(asMatrix.M14);
stream.WritePropertyName("M21");
stream.WriteValue(asMatrix.M21);
stream.WritePropertyName("M22");
stream.WriteValue(asMatrix.M22);
stream.WritePropertyName("M23");
stream.WriteValue(asMatrix.M23);
stream.WritePropertyName("M24");
stream.WriteValue(asMatrix.M24);
stream.WritePropertyName("M31");
stream.WriteValue(asMatrix.M31);
stream.WritePropertyName("M32");
stream.WriteValue(asMatrix.M32);
stream.WritePropertyName("M33");
stream.WriteValue(asMatrix.M33);
stream.WritePropertyName("M34");
stream.WriteValue(asMatrix.M34);
stream.WritePropertyName("M41");
stream.WriteValue(asMatrix.M41);
stream.WritePropertyName("M42");
stream.WriteValue(asMatrix.M42);
stream.WritePropertyName("M43");
stream.WriteValue(asMatrix.M43);
stream.WritePropertyName("M44");
stream.WriteValue(asMatrix.M44);
stream.WriteEndObject();
break;
}
case VariantType.Array:
{
stream.WriteStartArray();
foreach (var e in (object[])value)
stream.WriteVariant(e);
stream.WriteEndArray();
break;
}
case VariantType.Dictionary:
{
stream.WriteStartArray();
foreach (var e in (Dictionary<object, object>)value)
{
stream.WritePropertyName("Key");
stream.WriteVariant(e.Key);
stream.WritePropertyName("Value");
stream.WriteVariant(e.Value);
}
stream.WriteEndArray();
break;
}
case VariantType.Typename:
if (value is Type)
stream.WriteValue(((Type)value).FullName);
else if (value is ScriptType)
stream.WriteValue(((ScriptType)value).TypeName);
break;
default: throw new NotImplementedException($"TODO: serialize {variantType} to Json");
}
stream.WriteEndObject();
}
/// <summary>
/// Shows the source code window.
/// </summary>
/// <param name="source">The source code.</param>
/// <param name="title">The window title.</param>
public static void ShowSourceCodeWindow(string source, string title)
{
if (string.IsNullOrEmpty(source))
{
MessageBox.Show("No generated shader source code.", "No source.");
return;
}
var settings = CreateWindowSettings.Default;
settings.ActivateWhenFirstShown = true;
settings.AllowMaximize = false;
settings.AllowMinimize = false;
settings.HasSizingFrame = false;
settings.StartPosition = WindowStartPosition.CenterScreen;
settings.Size = new Vector2(500, 600) * Platform.DpiScale;
settings.Title = title;
var dialog = Platform.CreateWindow(ref settings);
var copyButton = new Button(4, 4, 100)
{
Text = "Copy",
Parent = dialog.GUI,
};
copyButton.Clicked += () => Clipboard.Text = source;
var sourceTextBox = new TextBox(true, 2, copyButton.Bottom + 4, settings.Size.X - 4);
sourceTextBox.Height = settings.Size.Y - sourceTextBox.Top - 2;
sourceTextBox.Text = source;
sourceTextBox.Parent = dialog.GUI;
dialog.Show();
dialog.Focus();
}
private static OrientedBoundingBox GetWriteBox(ref Vector3 min, ref Vector3 max, float margin)
{
var box = new OrientedBoundingBox();
Vector3 vec = max - min;
Vector3 dir = Vector3.Normalize(vec);
Quaternion orientation;
if (Vector3.Dot(dir, Vector3.Up) >= 0.999f)
orientation = Quaternion.RotationAxis(Vector3.Left, Mathf.PiOverTwo);
else
orientation = Quaternion.LookRotation(dir, Vector3.Cross(Vector3.Cross(dir, Vector3.Up), dir));
Vector3 up = Vector3.Up * orientation;
box.Transformation = Matrix.CreateWorld(min + vec * 0.5f, dir, up);
Matrix inv;
Matrix.Invert(ref box.Transformation, out inv);
Vector3 vecLocal = Vector3.TransformNormal(vec * 0.5f, inv);
box.Extents.X = margin;
box.Extents.Y = margin;
box.Extents.Z = vecLocal.Z;
return box;
}
/// <summary>
/// Checks if given ray intersects with the oriented bounding wire box.
/// </summary>
/// <param name="box">The box.</param>
/// <param name="ray">The ray.</param>
/// <param name="distance">The result intersection distance.</param>
/// <param name="viewPosition">The view position used to scale the wires thickness depending on the wire distance from the view.</param>
/// <returns>True ray hits bounds, otherwise false.</returns>
public static unsafe bool RayCastWire(ref OrientedBoundingBox box, ref Ray ray, out float distance, ref Vector3 viewPosition)
{
var corners = stackalloc Vector3[8];
box.GetCorners(corners);
var minDistance = Vector3.DistanceSquared(ref viewPosition, ref corners[0]);
for (int i = 1; i < 8; i++)
minDistance = Mathf.Min(minDistance, Vector3.DistanceSquared(ref viewPosition, ref corners[i]));
minDistance = Mathf.Sqrt(minDistance);
var margin = Mathf.Clamp(minDistance / 80.0f, 0.1f, 100.0f);
if (GetWriteBox(ref corners[0], ref corners[1], margin).Intersects(ref ray, out distance) ||
GetWriteBox(ref corners[0], ref corners[3], margin).Intersects(ref ray, out distance) ||
GetWriteBox(ref corners[0], ref corners[4], margin).Intersects(ref ray, out distance) ||
GetWriteBox(ref corners[1], ref corners[2], margin).Intersects(ref ray, out distance) ||
GetWriteBox(ref corners[1], ref corners[5], margin).Intersects(ref ray, out distance) ||
GetWriteBox(ref corners[2], ref corners[3], margin).Intersects(ref ray, out distance) ||
GetWriteBox(ref corners[2], ref corners[6], margin).Intersects(ref ray, out distance) ||
GetWriteBox(ref corners[3], ref corners[7], margin).Intersects(ref ray, out distance) ||
GetWriteBox(ref corners[4], ref corners[5], margin).Intersects(ref ray, out distance) ||
GetWriteBox(ref corners[4], ref corners[7], margin).Intersects(ref ray, out distance) ||
GetWriteBox(ref corners[5], ref corners[6], margin).Intersects(ref ray, out distance) ||
GetWriteBox(ref corners[6], ref corners[7], margin).Intersects(ref ray, out distance))
return true;
distance = 0;
return false;
}
}
}