mirror of
https://github.com/aharabada/glitchy-engine-beef.git
synced 2026-09-05 13:01:52 +00:00
Start of Script Instance deserialization
- Also deserialize when stopping the game to restore pre play state - Fixed ancient bug where ClearDictionaryAndDeleteKeys falsly deletes the dictionary - Added ClearDictionaryAndDeleteValues helper mixin
This commit is contained in:
Simon Lübeß
@@ -4,6 +4,8 @@ using System.Collections;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.Reflection;
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using System.Runtime.CompilerServices;
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using System.Runtime.InteropServices;
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using System.Text;
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using GlitchyEngine.Core;
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using GlitchyEngine.Extensions;
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@@ -251,263 +253,315 @@ public static class EntitySerializer
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}
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}
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}
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public class SerializationContext
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public class DeserializationObject
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{
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StringBuilder _builder = new();
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private IntPtr _internalContext;
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public Dictionary<object, SerializationContext> SerializedClasses = new();
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private UUID _id;
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public UUID ID = UUID.CreateNew();
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private Stack<string> _structScope = new();
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private int _indentLevel = 0;
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private string _structScopeName;
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private void BeginLine()
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public Dictionary<object, SerializedObject> SerializedClasses;
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public DeserializationObject(IntPtr internalContext, UUID id, Dictionary<object, SerializedObject> serializedClasses)
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{
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for (int i = 0; i < _indentLevel; i++)
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_builder.Append('\t');
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_internalContext = internalContext;
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_id = id;
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SerializedClasses = serializedClasses;
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}
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private void WriteLine(string line)
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private (SerializedObject context, bool newContext) GetSerializedObject(object o)
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{
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BeginLine();
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_builder.AppendLine(line);
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}
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private void WriteField(string type, string name, string value)
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{
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BeginLine();
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_builder.AppendFormat("{0} {1} = {2}", type, name, value);
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_builder.Append('\n');
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}
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private void StartBlock()
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{
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WriteLine("{");
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_indentLevel++;
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}
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private void EndBlock()
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{
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Debug.Assert(_indentLevel > 0);
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_indentLevel--;
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WriteLine("}");
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}
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/// <summary>
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///
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/// </summary>
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/// <param name="o"></param>
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/// <returns>A serialization context for the given object. And true, if the context was used before, false otherwise.</returns>
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private (SerializationContext context, bool newContext) GetReferenceTypeContext(object o)
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{
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SerializationContext context;
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SerializedObject context;
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if (SerializedClasses.TryGetValue(o, out context))
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return (context, false);
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context = new SerializationContext
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{
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SerializedClasses = SerializedClasses,
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// The indentation is arbitrary anyway, this is just for style
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_indentLevel = 1
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};
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ScriptGlue.Serialization_CreateObject(_internalContext, out IntPtr contextPtr, out UUID id);
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context = new SerializedObject(contextPtr, id, SerializedClasses);
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SerializedClasses.Add(o, context);
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return (context, true);
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}
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private void PushScope(string name)
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{
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_structScope.Push(name);
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_structScopeName += $"{name}.";
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}
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private void PopScope()
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{
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string scopeToRemove = _structScope.Pop();
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_structScopeName.Remove(_structScopeName.Length - scopeToRemove.Length - 1);
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}
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private unsafe object GetFieldValue(string fieldName, SerializationType serializationType)
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{
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string completeFieldName = $"{_structScopeName}{fieldName}";
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// Decimal is the larges primitive we store so we use a decimal as stack allocated memory (because stackalloc doesn't seem to work :(
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//decimal backingFieldOnStack = 0.0m;
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byte* rawData = stackalloc byte[16];
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//byte* rawData = (byte*)&backingFieldOnStack;
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ScriptGlue.Serialization_DeserializeField(_internalContext, serializationType, completeFieldName, rawData);
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string GetString()
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{
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// rawData contains a Pointer and a string length!
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byte* utf8Ptr = *(byte**)rawData;
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ulong length = *(ulong*)(rawData + 8);
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return Encoding.UTF8.GetString(utf8Ptr, (int)length);
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}
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switch (serializationType)
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{
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case SerializationType.Bool:
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return *(bool*)rawData;
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case SerializationType.Char:
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return *(char*)rawData;
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case SerializationType.String:
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return GetString();
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case SerializationType.Int8:
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return *(sbyte*)rawData;
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case SerializationType.Int16:
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return *(short*)rawData;
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case SerializationType.Int32:
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return *(int*)rawData;
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case SerializationType.Int64:
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return *(long*)rawData;
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case SerializationType.UInt8:
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return *(byte*)rawData;
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case SerializationType.UInt16:
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return *(ushort*)rawData;
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case SerializationType.UInt32:
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return *(uint*)rawData;
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case SerializationType.UInt64:
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return *(ulong*)rawData;
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case SerializationType.Float:
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return *(float*)rawData;
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case SerializationType.Double:
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return *(double*)rawData;
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case SerializationType.Decimal:
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return *(decimal*)rawData;
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case SerializationType.Enum:
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string value = GetString();
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// TODO!
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return null;
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case SerializationType.EntityReference:
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case SerializationType.ComponentReference:
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case SerializationType.ObjectReference:
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return *(UUID*)rawData;
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default:
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return null;
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}
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}
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public void Deserialize(Entity entity)
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{
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DeserializeFields(entity);
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}
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private void SerializeArray(string fieldName, Type fieldType, object o)
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private bool DeserializeFields(object obj)
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{
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Type type = o.GetType();
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Type type = obj.GetType();
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Debug.Assert(type.IsArray);
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bool changed = false;
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Type elementType = type.GetElementType();
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Debug.Assert(elementType != null);
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WriteField(type.ToString(), fieldName, "");
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StartBlock();
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Array array = (Array)o;
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foreach (var element in array)
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foreach (FieldInfo field in type.GetFields())
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{
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Serialize("", elementType, element);
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}
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EndBlock();
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}
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public void SerializeList(string fieldName, Type fieldType, object o)
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{
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Type type = o.GetType();
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Debug.Assert(type.IsGenericType);
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Type elementType = type.GetGenericArguments()[0];
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WriteField(type.ToString(), fieldName, "");
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StartBlock();
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IList list = (IList)o;
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foreach (var element in list)
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{
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Serialize("", elementType, element);
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}
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EndBlock();
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}
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void SerializeFields(Type objectType, object instance)
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{
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foreach (FieldInfo fieldInfo in objectType.GetFields(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance))
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{
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if (!SerializeField(fieldInfo))
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if (!EntitySerializer.SerializeField(field))
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continue;
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object value = fieldInfo.GetValue(instance);
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Serialize(fieldInfo.Name, fieldInfo.FieldType, value);
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changed |= DeserializeField(obj, field);
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}
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return changed;
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}
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/// <summary>
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///
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/// </summary>
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/// <param name="o"></param>
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/// <param name="shallowEntities">If true, entities will only be serialized as their UUID</param>
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public void Serialize(string fieldName, Type fieldType, object o, bool shallowEntities = true)
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private bool DeserializeField(object targetInstance, FieldInfo field)
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{
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// TODO: is this shortcut valid?
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if (o == null)
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{
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WriteField(fieldType.ToString(), fieldName, "null");
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return;
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}
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Type fieldType = field.FieldType;
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Type type = o.GetType();
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if (fieldType.IsPrimitive)
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{
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object value = DeserializePrimitive(field.Name, fieldType);
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if (typeof(Entity).IsAssignableFrom(type))
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{
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if (shallowEntities)
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WriteField(type.ToString(), fieldName, ((Entity)o).UUID.ToString());
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else
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SerializeClass(fieldName, type, o);
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//SerializeFields(type, o);
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if (value != null)
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{
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field.SetValue(targetInstance, value);
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return true;
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}
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}
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else if (typeof(Component).IsAssignableFrom(type))
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else if (fieldType == typeof(string))
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{
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WriteField(type.ToString(), fieldName, ((Component)o).UUID.ToString());
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object value = GetFieldValue(field.Name, SerializationType.String);
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if (value != null)
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{
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field.SetValue(targetInstance, value);
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return true;
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}
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}
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else if (type == typeof(string))
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else if (fieldType.IsEnum)
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{
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WriteField(type.ToString(), fieldName, $"\"{(string)o}\"");
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// SerializeEnum(fieldName, fieldValue, fieldType);
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}
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else if (type.IsPrimitive)
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else if (fieldType.IsArray)
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{
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WriteField(type.ToString(), fieldName, o.ToString());
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// Log.Error($"Array serialization not yet implemented");
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}
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else if (type.IsEnum)
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{
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WriteField(type.ToString(), fieldName, o.ToString());
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}
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else if (type.IsArray)
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{
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SerializeArray(fieldName, type, o);
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}
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else if (type.IsGenericType)
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else if (fieldType.IsGenericType)
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{
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if (fieldType.GetGenericTypeDefinition() == typeof(List<>))
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{
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SerializeList(fieldName, type, o);
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//SerializeList(fieldName, type, o);
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Log.Error($"List serialization not yet implemented");
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}
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//else if (fieldType.GetGenericTypeDefinition() == typeof(Dictionary<,>))
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//else if (fieldType.GetGenericTypeDefinition() == typeof(Dictionary<,>))
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//{
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// ImGui.Text($"{fieldName} Dictionary");
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//}
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else
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{
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// TODO: what to do?
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Log.Error($"Generic class serialization not yet implemented");
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}
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}
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else if (type.IsValueType)
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else if (fieldType.IsValueType)
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{
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SerializeStruct(fieldName, type, o);
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object structValue = field.GetValue(targetInstance);
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bool changed = DeserializeStruct(field.Name, structValue);
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if (changed)
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{
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field.SetValue(targetInstance, structValue);
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return true;
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}
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}
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else if (type.IsClass)
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else if (fieldType.IsClass)
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{
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// TODO: Use custom serializer, if available
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SerializeClass(fieldName, type, o);
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// SerializeClass(fieldName, fieldValue, fieldType);
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}
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else
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{
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Log.Error($"Encountered unhandled type \"{type}\" while serializing.");
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Log.Error($"Encountered unhandled type \"{fieldType}\" while serializing.");
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}
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return false;
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}
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private void SerializeStruct(string fieldName, Type type, object o)
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private object DeserializePrimitive(string fieldName, Type fieldType)
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{
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WriteField(type.ToString(), fieldName, "{");
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StartBlock();
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Debug.Assert(fieldType.IsPrimitive, $"{fieldType} is not a primitive type.");
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SerializationType expectedType = SerializationType.None;
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SerializeFields(type, o);
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EndBlock();
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}
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private void SerializeClass(string fieldName, Type type, object o)
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{
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(SerializationContext context, bool newContext) = GetReferenceTypeContext(o);
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// Only serialize the class, if it wasn't serialized before, obviously...
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if (newContext)
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context.SerializeFields(type, o);
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WriteField(type.ToString(), fieldName, context.ID.ToString());
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}
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public override string ToString()
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{
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StringBuilder finalBuilder = new();
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foreach (var context in SerializedClasses)
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if (fieldType == typeof(bool))
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expectedType = SerializationType.Bool;
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else if (fieldType == typeof(char))
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expectedType = SerializationType.Char;
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else if (fieldType == typeof(byte))
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expectedType = SerializationType.UInt8;
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else if (fieldType == typeof(sbyte))
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expectedType = SerializationType.Int8;
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else if (fieldType == typeof(ushort))
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expectedType = SerializationType.UInt16;
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else if (fieldType == typeof(short))
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expectedType = SerializationType.Int16;
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else if (fieldType == typeof(uint))
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expectedType = SerializationType.UInt32;
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else if (fieldType == typeof(int))
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expectedType = SerializationType.Int32;
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else if (fieldType == typeof(ulong))
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expectedType = SerializationType.UInt64;
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else if (fieldType == typeof(long))
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expectedType = SerializationType.Int64;
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else if (fieldType == typeof(float))
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expectedType = SerializationType.Float;
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else if (fieldType == typeof(double))
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expectedType = SerializationType.Double;
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else if (fieldType == typeof(decimal))
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expectedType = SerializationType.Decimal;
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else
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{
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finalBuilder.Append($"{context.Value.ID} = {{\n");
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finalBuilder.Append(context.Value._builder);
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finalBuilder.Append("}\n\n");
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Log.Error($"The primitive {fieldType} is not implemented.");
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}
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finalBuilder.Append("Object:");
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finalBuilder.Append(_builder);
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return GetFieldValue(fieldName, expectedType);
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}
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return finalBuilder.ToString();
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private void SerializeEnum(string fieldName, object fieldValue, Type fieldType)
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{
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//AddField(fieldName, SerializationType.Enum, fieldValue.ToString());
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}
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private bool DeserializeStruct(string fieldName, object targetInstance)
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{
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PushScope(fieldName);
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bool changed = DeserializeFields(targetInstance);
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PopScope();
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return changed;
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}
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private void SerializeClass(string fieldName, object fieldValue, Type fieldType)
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{
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//if (typeof(Entity).IsAssignableFrom(fieldType))
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//{
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// AddField(fieldName, SerializationType.EntityReference, ((Entity)fieldValue)?.UUID ?? UUID.Zero);
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//}
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//else if (typeof(Component).IsAssignableFrom(fieldType))
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//{
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// AddField(fieldName, SerializationType.ComponentReference, ((Component)fieldValue)?.UUID ?? UUID.Zero);
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//}
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//else
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//{
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// if (fieldValue == null)
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// {
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// AddField(fieldName, SerializationType.ObjectReference, UUID.Zero);
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// }
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// else
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// {
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||||
// var (context, newContext) = GetSerializedObject(fieldValue);
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||||
|
||||
// if (newContext)
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// {
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||||
// context.SerializeFields(fieldValue);
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||||
// }
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||||
|
||||
// AddField(fieldName, SerializationType.ObjectReference, context._id);
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// }
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||||
//}
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||||
}
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}
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||||
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||||
//public static void Serialize(Entity entity, SerializationContext context)
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//{
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// context ??= new SerializationContext();
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||||
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||||
// context.Serialize($"Entity: {entity.UUID}", typeof(Entity), entity, false);
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||||
//}
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||||
public static void Serialize(Entity entity, IntPtr internalContext)
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||||
{
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||||
SerializedObject obj = new SerializedObject(internalContext, UUID.Zero, new Dictionary<object, SerializedObject>());
|
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obj.Serialize(entity);
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}
|
||||
|
||||
public static void Deserialize(Entity entity, IntPtr internalContext)
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{
|
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DeserializationObject obj = new DeserializationObject(internalContext, UUID.Zero, new Dictionary<object, SerializedObject>());
|
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obj.Deserialize(entity);
|
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}
|
||||
|
||||
public static bool SerializeField(FieldInfo fieldInfo)
|
||||
{
|
||||
@@ -533,3 +587,253 @@ public static class EntitySerializer
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
*
|
||||
*
|
||||
public class SerializationContext
|
||||
{
|
||||
StringBuilder _builder = new();
|
||||
|
||||
public Dictionary<object, SerializationContext> SerializedClasses = new();
|
||||
|
||||
public UUID ID = UUID.CreateNew();
|
||||
|
||||
private int _indentLevel = 0;
|
||||
|
||||
private void BeginLine()
|
||||
{
|
||||
for (int i = 0; i < _indentLevel; i++)
|
||||
_builder.Append('\t');
|
||||
}
|
||||
|
||||
private void WriteLine(string line)
|
||||
{
|
||||
BeginLine();
|
||||
|
||||
_builder.AppendLine(line);
|
||||
}
|
||||
|
||||
private void WriteField(string type, string name, string value)
|
||||
{
|
||||
BeginLine();
|
||||
|
||||
_builder.AppendFormat("{0} {1} = {2}", type, name, value);
|
||||
_builder.Append('\n');
|
||||
}
|
||||
|
||||
private void StartBlock()
|
||||
{
|
||||
WriteLine("{");
|
||||
_indentLevel++;
|
||||
}
|
||||
|
||||
private void EndBlock()
|
||||
{
|
||||
Debug.Assert(_indentLevel > 0);
|
||||
_indentLevel--;
|
||||
WriteLine("}");
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
///
|
||||
/// </summary>
|
||||
/// <param name="o"></param>
|
||||
/// <returns>A serialization context for the given object. And true, if the context was used before, false otherwise.</returns>
|
||||
private (SerializationContext context, bool newContext) GetReferenceTypeContext(object o)
|
||||
{
|
||||
SerializationContext context;
|
||||
|
||||
if (SerializedClasses.TryGetValue(o, out context))
|
||||
return (context, false);
|
||||
|
||||
context = new SerializationContext
|
||||
{
|
||||
SerializedClasses = SerializedClasses,
|
||||
// The indentation is arbitrary anyway, this is just for style
|
||||
_indentLevel = 1
|
||||
};
|
||||
|
||||
SerializedClasses.Add(o, context);
|
||||
|
||||
return (context, true);
|
||||
}
|
||||
|
||||
private void SerializeArray(string fieldName, Type fieldType, object o)
|
||||
{
|
||||
Type type = o.GetType();
|
||||
|
||||
Debug.Assert(type.IsArray);
|
||||
|
||||
Type elementType = type.GetElementType();
|
||||
|
||||
Debug.Assert(elementType != null);
|
||||
|
||||
WriteField(type.ToString(), fieldName, "");
|
||||
|
||||
StartBlock();
|
||||
|
||||
Array array = (Array)o;
|
||||
|
||||
foreach (var element in array)
|
||||
{
|
||||
Serialize("", elementType, element);
|
||||
}
|
||||
|
||||
EndBlock();
|
||||
}
|
||||
|
||||
public void SerializeList(string fieldName, Type fieldType, object o)
|
||||
{
|
||||
Type type = o.GetType();
|
||||
|
||||
Debug.Assert(type.IsGenericType);
|
||||
|
||||
Type elementType = type.GetGenericArguments()[0];
|
||||
|
||||
WriteField(type.ToString(), fieldName, "");
|
||||
|
||||
StartBlock();
|
||||
|
||||
IList list = (IList)o;
|
||||
|
||||
foreach (var element in list)
|
||||
{
|
||||
Serialize("", elementType, element);
|
||||
}
|
||||
|
||||
EndBlock();
|
||||
}
|
||||
void SerializeFields(Type objectType, object instance)
|
||||
{
|
||||
foreach (FieldInfo fieldInfo in objectType.GetFields(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance))
|
||||
{
|
||||
if (!SerializeField(fieldInfo))
|
||||
continue;
|
||||
|
||||
object value = fieldInfo.GetValue(instance);
|
||||
Serialize(fieldInfo.Name, fieldInfo.FieldType, value);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/// <summary>
|
||||
///
|
||||
/// </summary>
|
||||
/// <param name="o"></param>
|
||||
/// <param name="shallowEntities">If true, entities will only be serialized as their UUID</param>
|
||||
public void Serialize(string fieldName, Type fieldType, object o, bool shallowEntities = true)
|
||||
{
|
||||
// TODO: is this shortcut valid?
|
||||
if (o == null)
|
||||
{
|
||||
WriteField(fieldType.ToString(), fieldName, "null");
|
||||
return;
|
||||
}
|
||||
|
||||
Type type = o.GetType();
|
||||
|
||||
if (typeof(Entity).IsAssignableFrom(type))
|
||||
{
|
||||
if (shallowEntities)
|
||||
WriteField(type.ToString(), fieldName, ((Entity)o).UUID.ToString());
|
||||
else
|
||||
SerializeClass(fieldName, type, o);
|
||||
//SerializeFields(type, o);
|
||||
}
|
||||
else if (typeof(Component).IsAssignableFrom(type))
|
||||
{
|
||||
WriteField(type.ToString(), fieldName, ((Component)o).UUID.ToString());
|
||||
}
|
||||
else if (type == typeof(string))
|
||||
{
|
||||
WriteField(type.ToString(), fieldName, $"\"{(string)o}\"");
|
||||
}
|
||||
else if (type.IsPrimitive)
|
||||
{
|
||||
WriteField(type.ToString(), fieldName, o.ToString());
|
||||
}
|
||||
else if (type.IsEnum)
|
||||
{
|
||||
WriteField(type.ToString(), fieldName, o.ToString());
|
||||
}
|
||||
else if (type.IsArray)
|
||||
{
|
||||
SerializeArray(fieldName, type, o);
|
||||
}
|
||||
else if (type.IsGenericType)
|
||||
{
|
||||
if (fieldType.GetGenericTypeDefinition() == typeof(List<>))
|
||||
{
|
||||
SerializeList(fieldName, type, o);
|
||||
}
|
||||
//else if (fieldType.GetGenericTypeDefinition() == typeof(Dictionary<,>))
|
||||
//{
|
||||
// ImGui.Text($"{fieldName} Dictionary");
|
||||
//}
|
||||
else
|
||||
{
|
||||
// TODO: what to do?
|
||||
}
|
||||
}
|
||||
else if (type.IsValueType)
|
||||
{
|
||||
SerializeStruct(fieldName, type, o);
|
||||
}
|
||||
else if (type.IsClass)
|
||||
{
|
||||
// TODO: Use custom serializer, if available
|
||||
|
||||
SerializeClass(fieldName, type, o);
|
||||
}
|
||||
else
|
||||
{
|
||||
Log.Error($"Encountered unhandled type \"{type}\" while serializing.");
|
||||
}
|
||||
}
|
||||
|
||||
private void SerializeStruct(string fieldName, Type type, object o)
|
||||
{
|
||||
WriteField(type.ToString(), fieldName, "{");
|
||||
StartBlock();
|
||||
|
||||
SerializeFields(type, o);
|
||||
|
||||
EndBlock();
|
||||
}
|
||||
|
||||
private void SerializeClass(string fieldName, Type type, object o)
|
||||
{
|
||||
(SerializationContext context, bool newContext) = GetReferenceTypeContext(o);
|
||||
|
||||
// Only serialize the class, if it wasn't serialized before, obviously...
|
||||
if (newContext)
|
||||
context.SerializeFields(type, o);
|
||||
|
||||
WriteField(type.ToString(), fieldName, context.ID.ToString());
|
||||
}
|
||||
|
||||
public override string ToString()
|
||||
{
|
||||
StringBuilder finalBuilder = new();
|
||||
|
||||
foreach (var context in SerializedClasses)
|
||||
{
|
||||
finalBuilder.Append($"{context.Value.ID} = {{\n");
|
||||
|
||||
finalBuilder.Append(context.Value._builder);
|
||||
|
||||
finalBuilder.Append("}\n\n");
|
||||
}
|
||||
|
||||
finalBuilder.Append("Object:");
|
||||
|
||||
finalBuilder.Append(_builder);
|
||||
|
||||
return finalBuilder.ToString();
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
*
|
||||
*/
|
||||
|
||||
Reference in New Issue
Block a user