/// <summary>
/// Saves the surface to bytes. Performs also modified child surfaces saving before.
/// </summary>
/// <remarks>
/// Assume this method does not throw exceptions but uses return value as a error code.
/// </remarks>
/// <returns>True if failed, otherwise false.</returns>
public bool Save()
{
// Save all children modified before saving the current surface
for (int i = 0; i < Children.Count; i++)
{
if (Children[i].IsModified && Children[i].Save())
{
return(true);
}
}
Saving?.Invoke(this);
// Save surface meta
_meta.AddEntry(10, Utils.StructureToByteArray(ref CachedSurfaceMeta));
// Save all nodes meta
VisjectSurface.Meta11 meta11;
for (int i = 0; i < Nodes.Count; i++)
{
var node = Nodes[i];
meta11.Position = node.Location;
meta11.Selected = false; // don't save selection to prevent stupid binary diffs on asset
// TODO: reuse byte[] array for all nodes to reduce dynamic memory allocations
node.Meta.AddEntry(11, Utils.StructureToByteArray(ref meta11));
}
// Save graph
try
{
// Save graph
using (var stream = new MemoryStream())
using (var writer = new BinaryWriter(stream))
{
// Save graph to bytes
SaveGraph(writer);
var bytes = stream.ToArray();
// Send data to the container
Context.SurfaceData = bytes;
Saved?.Invoke(this);
// Clear modification flag
_isModified = false;
}
}
catch (Exception ex)
{
// Error
Editor.LogWarning("Saving Visject Surface data failed.");
Editor.LogWarning(ex);
return(true);
}
return(false);
}
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.Int16:
stream.Write((short)value);
break;
case VariantType.Uint16:
stream.Write((ushort)value);
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 = Utils.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.Int2:
stream.Write((Int2)value);
break;
case VariantType.Int3:
stream.Write((Int3)value);
break;
case VariantType.Int4:
stream.Write((Int4)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;
}
}