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using System;
using System.Diagnostics.CodeAnalysis;
using System.Linq;
using System.Linq.Expressions;
using System.Reflection;
using UnityEngine;
using Object = UnityEngine.Object;
public abstract class SerializableCallbackBase<TReturn> : SerializableCallbackBase {
public InvokableCallbackBase<TReturn> func;
public override void ClearCache() {
base.ClearCache();
func = null;
}
protected InvokableCallbackBase<TReturn> GetPersistentMethod() {
Type[] types = new Type[ArgRealTypes.Length + 1];
Array.Copy(ArgRealTypes, types, ArgRealTypes.Length);
types[types.Length - 1] = typeof(TReturn);
Type genericType = null;
switch (types.Length) {
case 1:
genericType = typeof(InvokableCallback<>).MakeGenericType(types);
break;
case 2:
genericType = typeof(InvokableCallback<,>).MakeGenericType(types);
break;
case 3:
genericType = typeof(InvokableCallback<, ,>).MakeGenericType(types);
break;
case 4:
genericType = typeof(InvokableCallback<, , ,>).MakeGenericType(types);
break;
case 5:
genericType = typeof(InvokableCallback<, , , ,>).MakeGenericType(types);
break;
default:
throw new ArgumentException(types.Length + "args");
}
return Activator.CreateInstance(genericType, new object[] { target, methodName }) as InvokableCallbackBase<TReturn>;
}
}
/// <summary> An inspector-friendly serializable function </summary>
[System.Serializable]
public abstract class SerializableCallbackBase : ISerializationCallbackReceiver {
/// <summary> Target object </summary>
public Object target { get { return _target; } set { _target = value; ClearCache(); } }
/// <summary> Target method name </summary>
public string methodName { get { return _methodName; } set { _methodName = value; ClearCache(); } }
public object[] Args { get { return args != null ? args : args = _args.Select(x => x.GetValue()).ToArray(); } }
public object[] args;
public Type[] ArgTypes { get { return argTypes != null ? argTypes : argTypes = _args.Select(x => Arg.RealType(x.argType)).ToArray(); } }
public Type[] argTypes;
public Type[] ArgRealTypes { get { return argRealTypes != null ? argRealTypes : argRealTypes = _args.Select(x => Type.GetType(x._typeName)).ToArray(); } }
public Type[] argRealTypes;
public bool dynamic { get { return _dynamic; } set { _dynamic = value; ClearCache(); } }
[SerializeField] protected Object _target;
[SerializeField] protected string _methodName;
[SerializeField] protected Arg[] _args;
[SerializeField] protected bool _dynamic;
#pragma warning disable 0414
[SerializeField] private string _typeName;
#pragma warning restore 0414
[SerializeField] private bool dirty;
#if UNITY_EDITOR
protected SerializableCallbackBase() {
_typeName = base.GetType().AssemblyQualifiedName;
}
#endif
public virtual void ClearCache() {
argTypes = null;
args = null;
}
public void SetMethod(Object target, string methodName, bool dynamic, params Arg[] args) {
_target = target;
_methodName = methodName;
_dynamic = dynamic;
_args = args;
ClearCache();
}
protected abstract void Cache();
public void OnBeforeSerialize() {
#if UNITY_EDITOR
if (dirty) { ClearCache(); dirty = false; }
#endif
}
public void OnAfterDeserialize() {
#if UNITY_EDITOR
_typeName = base.GetType().AssemblyQualifiedName;
#endif
}
}
[System.Serializable]
public struct Arg {
public enum ArgType { Unsupported, Bool, Int, Float, String, Object }
public bool boolValue;
public int intValue;
public float floatValue;
public string stringValue;
public Object objectValue;
public ArgType argType;
public string _typeName;
public object GetValue() {
return GetValue(argType);
}
public object GetValue(ArgType type) {
switch (type) {
case ArgType.Bool:
return boolValue;
case ArgType.Int:
return intValue;
case ArgType.Float:
return floatValue;
case ArgType.String:
return stringValue;
case ArgType.Object:
return objectValue;
default:
return null;
}
}
public static Type RealType(ArgType type) {
switch (type) {
case ArgType.Bool:
return typeof(bool);
case ArgType.Int:
return typeof(int);
case ArgType.Float:
return typeof(float);
case ArgType.String:
return typeof(string);
case ArgType.Object:
return typeof(Object);
default:
return null;
}
}
public static ArgType FromRealType(Type type) {
if (type == typeof(bool)) return ArgType.Bool;
else if (type == typeof(int)) return ArgType.Int;
else if (type == typeof(float)) return ArgType.Float;
else if (type == typeof(String)) return ArgType.String;
else if (typeof(Object).IsAssignableFrom(type)) return ArgType.Object;
else return ArgType.Unsupported;
}
public static bool IsSupported(Type type) {
return FromRealType(type) != ArgType.Unsupported;
}
}
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