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UE4 TextAssetFormat

 included in Format
   857 words   5 minutes 
https://papalqiblog.oss-cn-beijing.aliyuncs.com/blog/picture20210527163429.png

需求：常常多人修改一个资源如何做到不锁资源多人协作。

  1. 方向1. 能够进行类似文本不同资源的diff合并
  2. 方向2，将资源解耦，将常常需要修改的部分单独作为一个资源。

方案一：使用TextAssetFormat方案

  1. 我们在 Editor preference 中搜索 Text Asset Format​。可打开配置

https://papalqiblog.oss-cn-beijing.aliyuncs.com/blog/picture20210527155331.png

  1. 然后在资产右键​ Asset Action 可以 export to text format 保存成 utxt 格式的文件。

https://papalqiblog.oss-cn-beijing.aliyuncs.com/blog/picture20210527155401.png

  1. 在资产被引用时，如果对应 uasset 后缀名不存在，则会去搜索 utxt 后缀名并加载。如果不被引用是不会加载的。

https://papalqiblog.oss-cn-beijing.aliyuncs.com/blog/picture20210527155523.png

我们一个Uasset在内存中是一个UPackage的数据结构，其结构如上。对于大部分数据来讲。其明文存储的东西其实是它的File Summary和它的结构数据。但是所有走序列化的数据都是在一个数据块中，例如如下一个Montage：

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{
	"Exports": {
		"AM_Dunan_ComboXFinish02:ActAnimNotify_AutoTrace_2": {
			"__Class": "Class /Script/X21.ActAnimNotify_AutoTrace",
			"__Outer": "AnimMontage /Game/X21/Char/Dunan/Montage/AM_Dunan_ComboXFinish02.AM_Dunan_ComboXFinish02",
			"__ObjectFlags": 8,
			"__bNotAlwaysLoadedForEditorGame": true,
			"__Value": {
				"Properties": {}
			}
		},
		"AM_Dunan_ComboXFinish02:ActAnimNotify_ComponentFrameFire_0": {
			"__Class": "Class /Script/X21.ActAnimNotify_ComponentFrameFire",
			"__Outer": "AnimMontage /Game/X21/Char/Dunan/Montage/AM_Dunan_ComboXFinish02.AM_Dunan_ComboXFinish02",
			"__ObjectFlags": 8,
			"__bNotAlwaysLoadedForEditorGame": true,
			"__Value": {
				"Properties": {
					"BoneName": {
						"__Type": "NameProperty",
						"__Value": "RightWeapon_socket"
					},
					"TraceActor": {
						"__Type": "ObjectProperty",
						"__Value": "Object:/Script/Engine.BlueprintGeneratedClass /Game/X21/Weapon/TestWeapons/DunanSword/BP_TraceActor_Dunan.BP_TraceActor_Dunan_C"
					},
					"EffectGroupIdxs": {
						"__Type": "ArrayProperty",
						"__InnerType": "IntProperty",
						"__Value": [
							0
						]
					},
					"EffectCompIdxs": {
						"__Type": "ArrayProperty",
						"__InnerType": "IntProperty",
						"__Value": [
							1
						]
					}
				}
			}
		},
		"AM_Dunan_ComboXFinish02": {
			"__Class": "Class /Script/Engine.AnimMontage",
			"__ObjectFlags": 11,
			"__bNotAlwaysLoadedForEditorGame": true,
			"__bIsAsset": true,
			"__Value": {
				"BaseClassAutoGen": {
					"Data": {
						"Digest": "2d478bb32399147bf00315965feee61b69992d7e",
						"Base64": [
							"AAAAAAEAAAA1AQAAAAAAAAIAAAAAAQAAAAAAAAACAAAADAEAAAAAAAADAAAAAAAAAAAAAAAAAAAAAAAAAAAEAAAABQAAAAQAAAAAAAAAAAYAAAAHAAAABQAA",
							"AAQAAAAAAAAAAAgAAAAJAAAAAQAAAAQAAAAAAAAACgAAAAAAAAAACwAAAAoAAAAEAAAAAAAAAAAAAAAADAAAAA0AAAAEAAAAAAAAAAAAAAAADgAAAA0AAAAE",
							"AAAAAAAAAAAAAAAADwAAABAAAAAEAAAAAAAAABEAAAAAEgAAABMAAAAQAAAABAAAAAAAAAARAAAAABIAAAAUAAAAFQAAAAQAAAAAAAAAAAAAAAAWAAAAFQAA",
							"AAQAAAAAAAAAALy7uz8XAAAAFQAAAAQAAAAAAAAAAAAAAAAYAAAACgAAAAQAAAAAAAAAAAEAAAAIAAAAGQAAAAEAAAArAQAAAAAAAAIAAAAAAQAAABkAAAAC",
							"AAAAAgEAAAAAAAAaAAAAAAAAAAAAAAAAAAAAAAAAAAAbAAAABQAAAAQAAAAAAAAAABwAAAAdAAAAAgAAAMQAAAAAAAAAHQAAAAAAAAAAAAAAAAAAAAAAAAAA",
							"HgAAAAEAAACrAAAAAAAAAAIAAAAAAQAAAB4AAAACAAAAggAAAAAAAAAfAAAAAAAAAAAAAAAAAAAAAAAAAAAgAAAACgAAAAQAAAAAAAAAAAEAAAAhAAAAFQAA",
							"AAQAAAAAAAAAAAAAAAAiAAAAFQAAAAQAAAAAAAAAAAAAAAAjAAAAFQAAAAQAAAAAAAAAALy7uz8kAAAAFQAAAAQAAAAAAAAAAAAAgD8lAAAADQAAAAQAAAAA",
							"AAAAAAEAAAAIAAAACAAAAAgAAAAmAAAAAQAAALcAAAAAAAAAAgAAAAACAAAAJgAAAAIAAACOAAAAAAAAACcAAAAAAAAAAAAAAAAAAAAAAAAAACgAAAANAAAA",
							"BAAAAAAAAAAAAAAAACkAAAAVAAAABAAAAAAAAAAAF7fROCoAAAAQAAAABAAAAAAAAAArAAAAACwAAAAIAAAAKAAAAA0AAAAEAAAAAAAAAAAAAAAAKQAAABUA",
							"AAAEAAAAAAAAAAAhkgE+KgAAABAAAAAEAAAAAAAAACsAAAAALQAAAAgAAAAuAAAAAQAAAAgAAAAAAAAADQAAAAABAAAAAAAAAC8AAAABAAAAFgoAAAAAAAAC",
							"AAAAAAMAAAAvAAAAAgAAAO0JAAAAAAAAMAAAAAAAAAAAAAAAAAAAAAAAAAAAMQAAABUAAAAEAAAAAAAAAAAXt9E4MgAAABUAAAAEAAAAAAAAAAAAAAAAMwAA",
							"ABUAAAAEAAAAAAAAAACsxSc3NAAAAAUAAAAEAAAAAAAAAAA1AAAANgAAAAoAAAAEAAAAAAAAAAACAAAANwAAAAoAAAAEAAAAAAAAAAADAAAAOAAAABUAAAAE",
							"AAAAAAAAAADqdwE+OQAAAAIAAADJAAAAAAAAADoAAAAAAAAAAAAAAAAAAAAAAAAAAAsAAAAKAAAABAAAAAAAAAAAAAAAAAwAAAANAAAABAAAAAAAAAAAAAAA",
							"AA4AAAANAAAABAAAAAAAAAAAAAAAAA8AAAAQAAAABAAAAAAAAAARAAAAABIAAAATAAAAEAAAAAQAAAAAAAAAEQAAAAASAAAAFAAAABUAAAAEAAAAAAAAAAAA",
							"AAAAFgAAABUAAAAEAAAAAAAAAAC8u7s/FwAAABUAAAAEAAAAAAAAAADqdwE+GAAAAAoAAAAEAAAAAAAAAAABAAAACAAAADsAAAA8AAAAAAAAAAAAAAAAAD0A",
							"AAAQAAAABAAAAAAAAAA+AAAAAD8AAABAAAAAFQAAAAQAAAAAAAAAAAAAgD9BAAAAEAAAAAQAAAAAAAAAQgAAAABDAAAARAAAAA0AAAAEAAAAAAAAAAAAAAAA",
							"RQAAADwAAAAAAAAAAAAAAAEARgAAADwAAAAAAAAAAAAAAAAARwAAAAIAAAAEAAAAAAAAAEgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAP9JAAAAAgAAABAAAAAA",
							"AAAASQAAAAAAAAAAAAAAAAAAAAAAAAAAYtCL3DgRq0eu210gvHXyFEoAAAANAAAABAAAAAAAAAAAAgAAAAsAAAAKAAAABAAAAAAAAAAAAAAAAAwAAAANAAAA",
							"BAAAAAAAAAAAAAAAAA4AAAANAAAABAAAAAAAAAAAAAAAAA8AAAAQAAAABAAAAAAAAAARAAAAABIAAAATAAAAEAAAAAQAAAAAAAAAEQAAAAASAAAAFAAAABUA",
							"AAAEAAAAAAAAAAAAAAAAFgAAABUAAAAEAAAAAAAAAAC8u7s/FwAAABUAAAAEAAAAAAAAAAAAAAAAGAAAAAoAAAAEAAAAAAAAAAABAAAACAAAADEAAAAVAAAA",
							"BAAAAAAAAAAAAAAAADIAAAAVAAAABAAAAAAAAAAAAAAAADMAAAAVAAAABAAAAAAAAAAArMUnNzQAAAAFAAAABAAAAAAAAAAASwAAADYAAAAKAAAABAAAAAAA",
							"AAAAAgAAADcAAAAKAAAABAAAAAAAAAAABAAAADgAAAAVAAAABAAAAAAAAAAAuKRKPjkAAAACAAAAyQAAAAAAAAA6AAAAAAAAAAAAAAAAAAAAAAAAAAALAAAA",
							"CgAAAAQAAAAAAAAAAAAAAAAMAAAADQAAAAQAAAAAAAAAAAAAAAAOAAAADQAAAAQAAAAAAAAAAAAAAAAPAAAAEAAAAAQAAAAAAAAAEQAAAAASAAAAEwAAABAA",
							"AAAEAAAAAAAAABEAAAAAEgAAABQAAAAVAAAABAAAAAAAAAAAAAAAABYAAAAVAAAABAAAAAAAAAAAvLu7PxcAAAAVAAAABAAAAAAAAAAAlhkQPxgAAAAKAAAA",
							"BAAAAAAAAAAAAQAAAAgAAAA7AAAAPAAAAAAAAAAAAAAAAAA9AAAAEAAAAAQAAAAAAAAAPgAAAAA/AAAAQAAAABUAAAAEAAAAAAAAAAAAAIA/QQAAABAAAAAE",
							"AAAAAAAAAEIAAAAAQwAAAEQAAAANAAAABAAAAAAAAAAAAAAAAEUAAAA8AAAAAAAAAAAAAAABAEYAAAA8AAAAAAAAAAAAAAAAAEcAAAACAAAABAAAAAAAAABI",
							"AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAD/SQAAAAIAAAAQAAAAAAAAAEkAAAAAAAAAAAAAAAAAAAAAAAAAABCs6iDKaoZKgEOgVaijNHNKAAAADQAAAAQAAAAA",
							"AAAAAAAAAAALAAAACgAAAAQAAAAAAAAAAAAAAAAMAAAADQAAAAQAAAAAAAAAAAAAAAAOAAAADQAAAAQAAAAAAAAAAAAAAAAPAAAAEAAAAAQAAAAAAAAAEQAA",
							"AAASAAAAEwAAABAAAAAEAAAAAAAAABEAAAAAEgAAABQAAAAVAAAABAAAAAAAAAAAAAAAABYAAAAVAAAABAAAAAAAAAAAvLu7PxcAAAAVAAAABAAAAAAAAAAA",
							"0OC6PhgAAAAKAAAABAAAAAAAAAAAAQAAAAgAAAAxAAAAFQAAAAQAAAAAAAAAAAAAAAAyAAAAFQAAAAQAAAAAAAAAAAAAAAAzAAAAFQAAAAQAAAAAAAAAAKzF",
							"Jzc0AAAABQAAAAQAAAAAAAAAAEwAAAA2AAAACgAAAAQAAAAAAAAAAAUAAAA3AAAACgAAAAQAAAAAAAAAAAIAAAA4AAAAFQAAAAQAAAAAAAAAAAAAAAA5AAAA",
							"AgAAAMkAAAAAAAAAOgAAAAAAAAAAAAAAAAAAAAAAAAAACwAAAAoAAAAEAAAAAAAAAAACAAAADAAAAA0AAAAEAAAAAAAAAAAAAAAADgAAAA0AAAAEAAAAAAAA",
							"AAD/////DwAAABAAAAAEAAAAAAAAABEAAAAAEgAAABMAAAAQAAAABAAAAAAAAAARAAAAABIAAAAUAAAAFQAAAAQAAAAAAAAAAAAAAAAWAAAAFQAAAAQAAAAA",
							"AAAAAAAAAAAXAAAAFQAAAAQAAAAAAAAAAAAAAAAYAAAACgAAAAQAAAAAAAAAAAIAAAAIAAAAOwAAADwAAAAAAAAAAAAAAAAAPQAAABAAAAAEAAAAAAAAAD4A",
							"AAAAPwAAAEAAAAAVAAAABAAAAAAAAAAAAACAP0EAAAAQAAAABAAAAAAAAABCAAAAAEMAAABEAAAADQAAAAQAAAAAAAAAAAAAAABFAAAAPAAAAAAAAAAAAAAA",
							"AQBGAAAAPAAAAAAAAAAAAAAAAABHAAAAAgAAAAQAAAAAAAAASAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA/0kAAAACAAAAEAAAAAAAAABJAAAAAAAAAAAAAAAA",
							"AAAAAAAAAABl74+f2C4jTrNgXntA1D+zSgAAAA0AAAAEAAAAAAAAAAABAAAACwAAAAoAAAAEAAAAAAAAAAAAAAAADAAAAA0AAAAEAAAAAAAAAAAAAAAADgAA",
							"AA0AAAAEAAAAAAAAAAAAAAAADwAAABAAAAAEAAAAAAAAABEAAAAAEgAAABMAAAAQAAAABAAAAAAAAAARAAAAABIAAAAUAAAAFQAAAAQAAAAAAAAAAAAAAAAW",
							"AAAAFQAAAAQAAAAAAAAAALy7uz8XAAAAFQAAAAQAAAAAAAAAANRM9D4YAAAACgAAAAQAAAAAAAAAAAEAAAAIAAAATQAAABUAAAAEAAAAAAAAAAC8u7s/TgAA",
							"AAEAAAATAQAAAAAAAAIAAAAAAwAAAE4AAAACAAAA6gAAAAAAAABPAAAAAAAAAAAAAAAAAAAAAAAAAABQAAAABQAAAAQAAAAAAAAAAFEAAABSAAAAAgAAABAA",
							"AAAAAAAAUwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAPwAAAD8AAAA/AACAPwgAAABQAAAABQAAAAQAAAAAAAAAAFQAAABSAAAAAgAAABAAAAAAAAAAUwAAAAAA",
							"AAAAAAAAAAAAAAAAAAAAZmZmP2ZmZj9mZmY/ZmZmPwgAAABQAAAABQAAAAQAAAAAAAAAAFUAAABSAAAAAgAAABAAAAAAAAAAUwAAAAAAAAAAAAAAAAAAAAAA",
							"AAAAAAAAPwAAAD8AAAA/AACAPwgAAABWAAAACgAAAAQAAAAAAAAAAAYAAABXAAAACgAAAAQAAAAAAAAAAAcAAAAIAAAAAAAAAIpT1EPzVpZHt5Dv0TKWWJI="
						]
					},
					"Objects": [
						"Object:/Script/Engine.AnimMontage /Game/X21/Char/Dunan/Montage/AM_Dunan_ComboXFinish02.AM_Dunan_ComboXFinish02",
						"Object:/Script/Engine.AnimSequence /Game/X21/Char/Dunan/Animation/AM_pc01_01a_w_attack_finish03.AM_pc01_01a_w_attack_finish03",
						null,
						"Object:/Script/X21.ActAnimNotify_AutoTrace /Game/X21/Char/Dunan/Montage/AM_Dunan_ComboXFinish02.AM_Dunan_ComboXFinish02:ActAnimNotify_AutoTrace_2",
						"Object:/Script/X21.ActAnimNotify_ComponentFrameFire /Game/X21/Char/Dunan/Montage/AM_Dunan_ComboXFinish02.AM_Dunan_ComboXFinish02:ActAnimNotify_ComponentFrameFire_0",
						"Object:/Script/Engine.AnimNotify_PlayParticleEffect /Game/X21/Char/Dunan/Montage/AM_Dunan_ComboXFinish02.AM_Dunan_ComboXFinish02:AnimNotify_PlayParticleEffect_0",
						"Object:/Script/Engine.Skeleton /Game/X21/Char/Dunan/SK_Dunan.SK_Dunan",
						"Object:/Script/UnrealEd.SceneThumbnailInfo /Game/X21/Char/Dunan/Montage/AM_Dunan_ComboXFinish02.AM_Dunan_ComboXFinish02:SceneThumbnailInfo_0"
					],
					"Names": [
						"CompositeSections",
						"ArrayProperty",
						"StructProperty",
						"CompositeSection",
						"SectionName",
						"NameProperty",
						"Default",
						"NextSectionName",
						"None",
						"MetaData",
						"ObjectProperty",
						"LinkedMontage",
						"SlotIndex",
						"IntProperty",
						"SegmentIndex",
						"LinkMethod",
						"ByteProperty",
						"EAnimLinkMethod",
						"EAnimLinkMethod::Absolute",
						"CachedLinkMethod",
						"SegmentBeginTime",
						"FloatProperty",
						"SegmentLength",
						"LinkValue",
						"LinkedSequence",
						"SlotAnimTracks",
						"SlotAnimationTrack",
						"SlotName",
						"FullAttack",
						"AnimTrack",
						"AnimSegments",
						"AnimSegment",
						"AnimReference",
						"StartPos",
						"AnimStartTime",
						"AnimEndTime",
						"AnimPlayRate",
						"LoopingCount",
						"BranchingPointMarkers",
						"BranchingPointMarker",
						"NotifyIndex",
						"TriggerTime",
						"NotifyEventType",
						"EAnimNotifyEventType",
						"EAnimNotifyEventType::Begin",
						"EAnimNotifyEventType::End",
						"BranchingPointStateNotifyIndices",
						"Notifies",
						"AnimNotifyEvent",
						"TriggerTimeOffset",
						"EndTriggerTimeOffset",
						"TriggerWeightThreshold",
						"NotifyName",
						"ActAutoTrace",
						"Notify",
						"NotifyStateClass",
						"Duration",
						"EndLink",
						"AnimLinkableElement",
						"bConvertedFromBranchingPoint",
						"BoolProperty",
						"MontageTickType",
						"EMontageNotifyTickType",
						"EMontageNotifyTickType::Queued",
						"NotifyTriggerChance",
						"NotifyFilterType",
						"ENotifyFilterType",
						"ENotifyFilterType::NoFiltering",
						"NotifyFilterLOD",
						"bTriggerOnDedicatedServer",
						"bTriggerOnFollower",
						"NotifyColor",
						"Color",
						"Guid",
						"TrackIndex",
						"ActComponentFrameFire",
						"PlayParticleEffect",
						"SequenceLength",
						"AnimNotifyTracks",
						"AnimNotifyTrack",
						"TrackName",
						"1",
						"TrackColor",
						"LinearColor",
						"VFX",
						"2",
						"Skeleton",
						"ThumbnailInfo"
					]
				}
			}
		},
		"AM_Dunan_ComboXFinish02:AnimNotify_PlayParticleEffect_0": {
			"__Class": "Class /Script/Engine.AnimNotify_PlayParticleEffect",
			"__Outer": "AnimMontage /Game/X21/Char/Dunan/Montage/AM_Dunan_ComboXFinish02.AM_Dunan_ComboXFinish02",
			"__ObjectFlags": 8,
			"__bNotAlwaysLoadedForEditorGame": true,
			"__Value": {
				"Properties": {
					"PSTemplate": {
						"__Type": "ObjectProperty",
						"__Value": "Object:/Script/Engine.ParticleSystem /Game/X21/Effect/Temp/Common/P_Com/PS_BD_SwordTrack_04.PS_BD_SwordTrack_04"
					},
					"SocketName": {
						"__Type": "NameProperty",
						"__Value": "fx_Combox_Finish_02"
					}
				}
			}
		},
		"PackageMetaData": {
			"__Class": "Class /Script/CoreUObject.MetaData",
			"__ObjectFlags": 2,
			"__bNotForClient": true,
			"__bNotForServer": true,
			"__Value": {
				"Properties": {},
				"ObjectMetaDataMap": [],
				"RootMetaDataMap": [
					[
						"PackageLocalizationNamespace",
						"6D0324674F6561EB03570CA4927073F3"
					]
				]
			}
		},
		"AM_Dunan_ComboXFinish02:SceneThumbnailInfo_0": {
			"__Class": "Class /Script/UnrealEd.SceneThumbnailInfo",
			"__Outer": "AnimMontage /Game/X21/Char/Dunan/Montage/AM_Dunan_ComboXFinish02.AM_Dunan_ComboXFinish02",
			"__ObjectFlags": 8,
			"__bNotAlwaysLoadedForEditorGame": true,
			"__Value": {
				"BaseClassAutoGen": {
					"Data": "Base64:AAAAAAAAAAA=",
					"Names": [
						"None"
					]
				}
			}
		}
	},
	"Summary": {
		"Tag": -1641380927,
		"LegacyFileVersion": -7,
		"LegacyUE3Version": 864,
		"FileVersionUE4": 518,
		"FileVersionLicenseeUE4": 0,
		"CustomVersions": [
			{
				"Key": "29E575DDE0A346279D10D276232CDCEA",
				"Version": 17
			},
			{
				"Key": "601D1886AC644F84AA16D3DE0DEAC7D6",
				"Version": 31
			},
			{
				"Key": "AF43A65D7FD3494798733E8ED9C1BB05",
				"Version": 7
			},
			{
				"Key": "CFFC743F43B04480939114DF171D2073",
				"Version": 37
			},
			{
				"Key": "E4B068EDF49442E9A231DA0B2E46BB41",
				"Version": 38
			}
		],
		"TotalHeaderSize": 0,
		"FolderName": "None",
		"PackageFlags": 0,
		"NameCount": 0,
		"NameOffset": 0,
		"LocalizationId": "6D0324674F6561EB03570CA4927073F3",
		"GatherableTextDataCount": 0,
		"GatherableTextDataOffset": 0,
		"ExportCount": 6,
		"ExportOffset": 0,
		"ImportCount": 18,
		"ImportOffset": 0,
		"DependsOffset": 0,
		"SoftPackageReferencesCount": 0,
		"SoftPackageReferencesOffset": 0,
		"SearchableNamesOffset": 0,
		"ThumbnailTableOffset": 0,
		"Guid": "6678B9B649FE690D9B0882AF68E7EE66",
		"PersistentGuid": "00000000000000000000000000000000",
		"OwnerPersistentGuid": "00000000000000000000000000000000",
		"GenerationCount": 1,
		"Generations": [
			{
				"ExportCount": 6,
				"NameCount": 0
			}
		],
		"SavedByEngineVersion": "0.0.0-0",
		"CompatibleWithEngineVersion": "0.0.0-0",
		"CompressionFlags": 0,
		"CompressedChunks": [],
		"PackageSource": 401305165,
		"AdditionalPackagesToCook": [],
		"AssetRegistryDataOffset": 0,
		"BulkDataStartOffset": 0,
		"WorldTileInfoDataOffset": 0,
		"ChunkIDs": [],
		"PreloadDependencyCount": -1,
		"PreloadDependencyOffset": 0
	}
}

我们删减去缩略图的数据可以看出，其所有的数据都在Exports里面，也就是它包含的所有的UObject。而Object里面的数据，其实是通过序列化进行的编码格式，我们在文本中是没有办法合并的。下图是我们只改变了norify 的时间轴的时间。所引发的结果。因此使用这种方案无法进行合并。

https://papalqiblog.oss-cn-beijing.aliyuncs.com/blog/picture20210527160212.png

结论：序列化数据的存储不是明文的，结构和数量是无法确定的。无法完成需求。

方案二：将常修改数据资源化

所有我们想第二个方案，将常常需要修改的数据资源化到另一个Package中。例如我们的AnimNotify_PlayParticleEffect，其表示为我们在蒙太奇中播放一个特效，外部特效的修改其实并不会影响这个Package的数据。也就是美术在修改特效本身的表现时并不会影响到montage。

因此，如果我们把常用的数据分出去，如果有人修改AnimNotify_PlayParticleEffect的内容，将不会影响到montage资源。

但是这会有很多问题。

  1. 涉及到Montage本身的数据（存储在montage身上，而不是它的成员变量Object身上的数据）是无法修改的。例如AnimNotify时间触发点这个数据其实是存储在montage本身，我们如果想要做到这个分离的话需要做一个例如MontageSetting的资源。
  2. 会极大的增多Packae的资源数量，零散内存的使用
  3. 操作上其实并不简单，会更加的繁琐。
  4. 无法复用方案，每个数据必须精心筛选和单独制作。
  5. 老资源的兼容问题，序列化的数据常常修改会有资源报废的风险。

结论：坑太多，无法完成需求。

方案三：使用高效的编辑器资源管理方案

如同堡垒之夜这么庞大人数，多地域多时区的大型协作类项目其实也是用Lock 的方案。

我们的痛点其实并不是lock本身，而是我们对Lock的不及时，或者是知道别人是否lock不及时。

也就是说，你在修改这个资源的时候，不知道这个资源是否被lock了或者是被谁lock了。

而UE4内置的编辑器资源版本管理工具就可以解决这个问题！

我们只需要在编辑器中进行配置： https://papalqiblog.oss-cn-beijing.aliyuncs.com/blog/picture20210527162832.png

https://papalqiblog.oss-cn-beijing.aliyuncs.com/blog/picture20210527163037.png

填充好信息 https://papalqiblog.oss-cn-beijing.aliyuncs.com/blog/picture20210527163155.png

解决的问题

我们可以在编辑器中选择设置

https://papalqiblog.oss-cn-beijing.aliyuncs.com/blog/picture20210527163521.png

  1. 资源修改时是否自动锁（Automatically Checkout on Asset Modification）选中后，它将自动迁出任何已修改的资源。也就是说，如果我们在编辑器中修改了这个资源，我们将可以选择是否需要锁住。
  2. 包修改锁提示（Prompt for Checkout on Package Modification）选中后，当您对源码管理包进行更改时，将出现一条提示，询问您是否希望（锁定）该资源。

当你配置好后，你可以在编辑器中看到资源的状态 https://papalqiblog.oss-cn-beijing.aliyuncs.com/blog/picture20210527163429.png

如果有人锁了，你将看到是谁锁的，那么你就无法修改这个资源了，这个时候你是可以看到是谁锁的，你可以在popo上通知这个人。非常的方便！

https://docs.unrealengine.com/4.26/zh-CN/Basics/UI/SourceControl/

案例

现在我修改保存一个蓝图。

https://papalqiblog.oss-cn-beijing.aliyuncs.com/blog/picture20210527164439.png

它会在保存的时候提示是否Check out，如果我们选择Check out，我们将会锁住这个资源。

https://papalqiblog.oss-cn-beijing.aliyuncs.com/blog/picture20210527164552.png

别人就没有办法修改了 https://papalqiblog.oss-cn-beijing.aliyuncs.com/blog/picture20210527164610.png

所有人的编辑器中都会显示是我锁住的。 https://papalqiblog.oss-cn-beijing.aliyuncs.com/blog/picture20210527164629.png

当我们SVN提交的时候，我们会解锁就可以了。如果我们需要其他的功能也可以根据这个再开发

Updated on 2021-05-27
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