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2023-11-28 11:38:59 +05:30
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Assets/Photon/PhotonRealtime/Code/Extensions.cs Normal file
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// ----------------------------------------------------------------------------
// <copyright file="Extensions.cs" company="Exit Games GmbH">
// Photon Extensions - Copyright (C) 2018 Exit Games GmbH
// </copyright>
// <summary>
// Provides some helpful methods and extensions for Hashtables, etc.
// </summary>
// <author>developer@photonengine.com</author>
// ----------------------------------------------------------------------------
#if UNITY_4_7 || UNITY_5 || UNITY_5_3_OR_NEWER
#define SUPPORTED_UNITY
#endif
namespace Photon.Realtime
{
using System.Collections;
using System.Collections.Generic;
using ExitGames.Client.Photon;
#if SUPPORTED_UNITY
using UnityEngine;
using Debug = UnityEngine.Debug;
#endif
#if SUPPORTED_UNITY || NETFX_CORE
using Hashtable = ExitGames.Client.Photon.Hashtable;
using SupportClass = ExitGames.Client.Photon.SupportClass;
#endif
/// <summary>
/// This static class defines some useful extension methods for several existing classes (e.g. Vector3, float and others).
/// </summary>
public static class Extensions
{
/// <summary>
/// Merges all keys from addHash into the target. Adds new keys and updates the values of existing keys in target.
/// </summary>
/// <param name="target">The IDictionary to update.</param>
/// <param name="addHash">The IDictionary containing data to merge into target.</param>
public static void Merge(this IDictionary target, IDictionary addHash)
{
if (addHash == null || target.Equals(addHash))
{
return;
}
foreach (object key in addHash.Keys)
{
target[key] = addHash[key];
}
}
/// <summary>
/// Merges keys of type string to target Hashtable.
/// </summary>
/// <remarks>
/// Does not remove keys from target (so non-string keys CAN be in target if they were before).
/// </remarks>
/// <param name="target">The target IDictionary passed in plus all string-typed keys from the addHash.</param>
/// <param name="addHash">A IDictionary that should be merged partly into target to update it.</param>
public static void MergeStringKeys(this IDictionary target, IDictionary addHash)
{
if (addHash == null || target.Equals(addHash))
{
return;
}
foreach (object key in addHash.Keys)
{
// only merge keys of type string
if (key is string)
{
target[key] = addHash[key];
}
}
}
/// <summary>Helper method for debugging of IDictionary content, including type-information. Using this is not performant.</summary>
/// <remarks>Should only be used for debugging as necessary.</remarks>
/// <param name="origin">Some Dictionary or Hashtable.</param>
/// <returns>String of the content of the IDictionary.</returns>
public static string ToStringFull(this IDictionary origin)
{
return SupportClass.DictionaryToString(origin, false);
}
/// <summary>Helper method for debugging of List<T> content. Using this is not performant.</summary>
/// <remarks>Should only be used for debugging as necessary.</remarks>
/// <param name="data">Any List<T> where T implements .ToString().</param>
/// <returns>A comma-separated string containing each value's ToString().</returns>
public static string ToStringFull<T>(this List<T> data)
{
if (data == null) return "null";
string[] sb = new string[data.Count];
for (int i = 0; i < data.Count; i++)
{
object o = data[i];
sb[i] = (o != null) ? o.ToString() : "null";
}
return string.Join(", ", sb);
}
/// <summary>Helper method for debugging of object[] content. Using this is not performant.</summary>
/// <remarks>Should only be used for debugging as necessary.</remarks>
/// <param name="data">Any object[].</param>
/// <returns>A comma-separated string containing each value's ToString().</returns>
public static string ToStringFull(this object[] data)
{
if (data == null) return "null";
string[] sb = new string[data.Length];
for (int i = 0; i < data.Length; i++)
{
object o = data[i];
sb[i] = (o != null) ? o.ToString() : "null";
}
return string.Join(", ", sb);
}
/// <summary>
/// This method copies all string-typed keys of the original into a new Hashtable.
/// </summary>
/// <remarks>
/// Does not recurse (!) into hashes that might be values in the root-hash.
/// This does not modify the original.
/// </remarks>
/// <param name="original">The original IDictonary to get string-typed keys from.</param>
/// <returns>New Hashtable containing only string-typed keys of the original.</returns>
public static Hashtable StripToStringKeys(this IDictionary original)
{
Hashtable target = new Hashtable();
if (original != null)
{
foreach (object key in original.Keys)
{
if (key is string)
{
target[key] = original[key];
}
}
}
return target;
}
/// <summary>
/// This method copies all string-typed keys of the original into a new Hashtable.
/// </summary>
/// <remarks>
/// Does not recurse (!) into hashes that might be values in the root-hash.
/// This does not modify the original.
/// </remarks>
/// <param name="original">The original IDictonary to get string-typed keys from.</param>
/// <returns>New Hashtable containing only string-typed keys of the original.</returns>
public static Hashtable StripToStringKeys(this Hashtable original)
{
Hashtable target = new Hashtable();
if (original != null)
{
foreach (DictionaryEntry entry in original)
{
if (entry.Key is string)
{
target[entry.Key] = original[entry.Key];
}
}
}
return target;
}
/// <summary>Used by StripKeysWithNullValues.</summary>
/// <remarks>
/// By making keysWithNullValue a static variable to clear before using, allocations only happen during the warm-up phase
/// as the list needs to grow. Once it hit the high water mark for keys you need to remove.
/// </remarks>
private static readonly List<object> keysWithNullValue = new List<object>();
/// <summary>Removes all keys with null values.</summary>
/// <remarks>
/// Photon properties are removed by setting their value to null. Changes the original IDictionary!
/// Uses lock(keysWithNullValue), which should be no problem in expected use cases.
/// </remarks>
/// <param name="original">The IDictionary to strip of keys with null value.</param>
public static void StripKeysWithNullValues(this IDictionary original)
{
lock (keysWithNullValue)
{
keysWithNullValue.Clear();
foreach (DictionaryEntry entry in original)
{
if (entry.Value == null)
{
keysWithNullValue.Add(entry.Key);
}
}
for (int i = 0; i < keysWithNullValue.Count; i++)
{
var key = keysWithNullValue[i];
original.Remove(key);
}
}
}
/// <summary>Removes all keys with null values.</summary>
/// <remarks>
/// Photon properties are removed by setting their value to null. Changes the original IDictionary!
/// Uses lock(keysWithNullValue), which should be no problem in expected use cases.
/// </remarks>
/// <param name="original">The IDictionary to strip of keys with null value.</param>
public static void StripKeysWithNullValues(this Hashtable original)
{
lock (keysWithNullValue)
{
keysWithNullValue.Clear();
foreach (DictionaryEntry entry in original)
{
if (entry.Value == null)
{
keysWithNullValue.Add(entry.Key);
}
}
for (int i = 0; i < keysWithNullValue.Count; i++)
{
var key = keysWithNullValue[i];
original.Remove(key);
}
}
}
/// <summary>
/// Checks if a particular integer value is in an int-array.
/// </summary>
/// <remarks>This might be useful to look up if a particular actorNumber is in the list of players of a room.</remarks>
/// <param name="target">The array of ints to check.</param>
/// <param name="nr">The number to lookup in target.</param>
/// <returns>True if nr was found in target.</returns>
public static bool Contains(this int[] target, int nr)
{
if (target == null)
{
return false;
}
for (int index = 0; index < target.Length; index++)
{
if (target[index] == nr)
{
return true;
}
}
return false;
}
}
}