Creating Timelines in Unreal Engine | Unreal Engine 5.0 Documentation

Blueprints

C++

Creating Timelines

You can create your own Timeline Component in an Actor Blueprint by following these steps.

From the Content Browser, select Add+ > Blueprint Class and create a new Actor Blueprint named BP_TimelineActor. The Pick Parent Class dialog appears.
In the Class Defaults, right-click on the Event Graph, to display the Blueprint Context Menu, search for and select Add Timeline.

A new Timeline node appears on the Event Graph.

When a Timeline is added to your Blueprint class, you will be able to see it listed in the My Blueprint tab.

Timeline Variables

Once you have created a Timeline, you will notice it becomes available as a variable in the My Blueprint tab. This is done to provide a reference to the Timeline component, and is useful when utilizing the Timeline nodes. These nodes exist to allow access to certain features of a Timeline, such as its play rate.

For example, you can use the Get Timeline 0 variable to query the current Play Rate value of that Timeline.

A wide variety of such nodes exist, providing the capabilities to query values and control behavior of your Timeline nodes. For a complete list of the available Timeline nodes and their functionality, see the Timeline Nodes page.

Creating a Timeline Event

Timeline Events provide functionality to a Timeline Component to handle your own custom events or functions. Follow the steps below for an example on how to implement your own event.

Open BP_TimelineActor, drag off the execution pin of the Begin Play node and search for and select Add Timeline.
Begin Object Class=/Script/BlueprintGraph.K2Node_Event Name="K2Node_Event_0" EventReference=(MemberParent=Class'"/Script/Engine.Actor"',MemberName="ReceiveBeginPlay") bOverrideFunction=True NodePosY=-128 bCommentBubblePinned=True NodeGuid=5FBA33CC4CC8CB4ED0DE10802AEC6150 CustomProperties Pin (PinId=04DC4F854BB6BB3B469928A3D262B532,PinName="OutputDelegate",Direction="EGPD_Output",PinType.PinCategory="delegate",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(MemberParent=Class'"/Script/Engine.Actor"',MemberName="ReceiveBeginPlay"),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=493D6ECC48C47DAF19E698BF937AB787,PinName="then",Direction="EGPD_Output",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,LinkedTo=(K2Node_Timeline_0 7B94569E4931CB05569B779BA7053DE2,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) End Object Begin Object Class=/Script/BlueprintGraph.K2Node_Timeline Name="K2Node_Timeline_0" TimelineName="Timeline_0" TimelineGuid=B0C028EF4B7640BD9A291396443D800F NodePosX=176 NodePosY=-128 bCanRenameNode=True NodeGuid=BCDF4E444AB5A56E964C139A660FDF18 CustomProperties Pin (PinId=7B94569E4931CB05569B779BA7053DE2,PinName="Play",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,LinkedTo=(K2Node_Event_0 493D6ECC48C47DAF19E698BF937AB787,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=CF9431C540C4D9CADAD01289B634C7DA,PinName="PlayFromStart",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=CDD00FA848E9F24904234F9B8A2E8B7D,PinName="Stop",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=61F7A596408CC583855DF588B8463076,PinName="Reverse",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=00634A8E48E5B37D2154DABFB0190357,PinName="ReverseFromEnd",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=3A270B804B33D15C47BF2E8F746A3F85,PinName="Update",Direction="EGPD_Output",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=AEAD3EDD4B931BA678F86DBDD5D365C2,PinName="Finished",Direction="EGPD_Output",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,LinkedTo=(K2Node_CallFunction_3 1941A1CD45D63F98C92FB1AA49279290,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=517C697540A7A470A66B2E84CEF8B9C4,PinName="SetNewTime",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=DEB07A6C4E1D6E9A79A118B3A5A3D61B,PinName="NewTime",PinType.PinCategory="real",PinType.PinSubCategory="float",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,DefaultValue="0.0",AutogeneratedDefaultValue="0.0",PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=64A7BF3A4367BB365672A1BFA7649768,PinName="Direction",Direction="EGPD_Output",PinType.PinCategory="byte",PinType.PinSubCategory="",PinType.PinSubCategoryObject=Enum'"/Script/Engine.ETimelineDirection"',PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) End Object
Drag off the Finished pin of the Timeline_0 node, search for and add Print String node. Input the string "Timeline Finished" to the text field.
Begin Object Class=/Script/BlueprintGraph.K2Node_CallFunction Name="K2Node_CallFunction_3" FunctionReference=(MemberParent=Class'"/Script/Engine.KismetSystemLibrary"',MemberName="PrintString") NodePosX=432 NodePosY=-128 AdvancedPinDisplay=Hidden EnabledState=DevelopmentOnly NodeGuid=C2E617C34EF5512E11FFEF9545AC379A CustomProperties Pin (PinId=1941A1CD45D63F98C92FB1AA49279290,PinName="execute",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,LinkedTo=(K2Node_Timeline_0 AEAD3EDD4B931BA678F86DBDD5D365C2,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=B5FA1DB14BEC1B77DDD8D5A441E574DB,PinName="then",Direction="EGPD_Output",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=95EA3B1449CB53545C29F38249A31A77,PinName="self",PinFriendlyName=NSLOCTEXT("K2Node", "Target", "Target"),PinType.PinCategory="object",PinType.PinSubCategory="",PinType.PinSubCategoryObject=Class'"/Script/Engine.KismetSystemLibrary"',PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,DefaultObject="/Script/Engine.Default__KismetSystemLibrary",PersistentGuid=00000000000000000000000000000000,bHidden=True,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=FBE62274411FB583C9B4B1BD65745860,PinName="WorldContextObject",PinType.PinCategory="object",PinType.PinSubCategory="",PinType.PinSubCategoryObject=Class'"/Script/CoreUObject.Object"',PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=True,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,PersistentGuid=00000000000000000000000000000000,bHidden=True,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=9158349E4DEA996B4FB05A8F2DBFFF76,PinName="InString",PinType.PinCategory="string",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,DefaultValue="Timeline Finished",AutogeneratedDefaultValue="Hello",PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=6B2F94B04D075F64B11C199C7C838CA2,PinName="bPrintToScreen",PinType.PinCategory="bool",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,DefaultValue="true",AutogeneratedDefaultValue="true",PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=True,bOrphanedPin=False,) CustomProperties Pin (PinId=0822BF624BA6180F7EB31A85A34FEB61,PinName="bPrintToLog",PinType.PinCategory="bool",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,DefaultValue="true",AutogeneratedDefaultValue="true",PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=True,bOrphanedPin=False,) CustomProperties Pin (PinId=27EA7C2347F31C8175494F8E72C44102,PinName="TextColor",PinType.PinCategory="struct",PinType.PinSubCategory="",PinType.PinSubCategoryObject=ScriptStruct'"/Script/CoreUObject.LinearColor"',PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,DefaultValue="(R=0.000000,G=0.660000,B=1.000000,A=1.000000)",AutogeneratedDefaultValue="(R=0.000000,G=0.660000,B=1.000000,A=1.000000)",PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=True,bOrphanedPin=False,) CustomProperties Pin (PinId=313E4CB8477598702B012F977E1BE1E0,PinName="Duration",PinType.PinCategory="real",PinType.PinSubCategory="float",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,DefaultValue="2.000000",AutogeneratedDefaultValue="2.000000",PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=True,bOrphanedPin=False,) CustomProperties Pin (PinId=8CA5AC9D4C201A05A96C4C8DBDB3E835,PinName="Key",PinType.PinCategory="name",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=True,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,DefaultValue="None",AutogeneratedDefaultValue="None",PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=True,bOrphanedPin=False,) End Object
Your final Blueprint Script should look as following:
Begin Object Class=/Script/BlueprintGraph.K2Node_Event Name="K2Node_Event_0" EventReference=(MemberParent=Class'"/Script/Engine.Actor"',MemberName="ReceiveBeginPlay") bOverrideFunction=True NodePosX=-16 NodePosY=-128 bCommentBubblePinned=True NodeGuid=5FBA33CC4CC8CB4ED0DE10802AEC6150 CustomProperties Pin (PinId=04DC4F854BB6BB3B469928A3D262B532,PinName="OutputDelegate",Direction="EGPD_Output",PinType.PinCategory="delegate",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(MemberParent=Class'"/Script/Engine.Actor"',MemberName="ReceiveBeginPlay"),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=493D6ECC48C47DAF19E698BF937AB787,PinName="then",Direction="EGPD_Output",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,LinkedTo=(K2Node_Timeline_0 7B94569E4931CB05569B779BA7053DE2,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) End Object Begin Object Class=/Script/BlueprintGraph.K2Node_Timeline Name="K2Node_Timeline_0" TimelineName="Timeline_0" TimelineGuid=B0C028EF4B7640BD9A291396443D800F NodePosX=176 NodePosY=-128 bCanRenameNode=True NodeGuid=BCDF4E444AB5A56E964C139A660FDF18 CustomProperties Pin (PinId=7B94569E4931CB05569B779BA7053DE2,PinName="Play",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,LinkedTo=(K2Node_Event_0 493D6ECC48C47DAF19E698BF937AB787,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=CF9431C540C4D9CADAD01289B634C7DA,PinName="PlayFromStart",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=CDD00FA848E9F24904234F9B8A2E8B7D,PinName="Stop",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=61F7A596408CC583855DF588B8463076,PinName="Reverse",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=00634A8E48E5B37D2154DABFB0190357,PinName="ReverseFromEnd",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=3A270B804B33D15C47BF2E8F746A3F85,PinName="Update",Direction="EGPD_Output",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=AEAD3EDD4B931BA678F86DBDD5D365C2,PinName="Finished",Direction="EGPD_Output",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,LinkedTo=(K2Node_CallFunction_3 1941A1CD45D63F98C92FB1AA49279290,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=517C697540A7A470A66B2E84CEF8B9C4,PinName="SetNewTime",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=DEB07A6C4E1D6E9A79A118B3A5A3D61B,PinName="NewTime",PinType.PinCategory="real",PinType.PinSubCategory="float",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,DefaultValue="0.0",AutogeneratedDefaultValue="0.0",PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=64A7BF3A4367BB365672A1BFA7649768,PinName="Direction",Direction="EGPD_Output",PinType.PinCategory="byte",PinType.PinSubCategory="",PinType.PinSubCategoryObject=Enum'"/Script/Engine.ETimelineDirection"',PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) End Object Begin Object Class=/Script/BlueprintGraph.K2Node_CallFunction Name="K2Node_CallFunction_3" FunctionReference=(MemberParent=Class'"/Script/Engine.KismetSystemLibrary"',MemberName="PrintString") NodePosX=448 NodePosY=-128 AdvancedPinDisplay=Hidden EnabledState=DevelopmentOnly NodeGuid=C2E617C34EF5512E11FFEF9545AC379A CustomProperties Pin (PinId=1941A1CD45D63F98C92FB1AA49279290,PinName="execute",PinToolTip="\nExec",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,LinkedTo=(K2Node_Timeline_0 AEAD3EDD4B931BA678F86DBDD5D365C2,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=B5FA1DB14BEC1B77DDD8D5A441E574DB,PinName="then",PinToolTip="\nExec",Direction="EGPD_Output",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=95EA3B1449CB53545C29F38249A31A77,PinName="self",PinFriendlyName=NSLOCTEXT("K2Node", "Target", "Target"),PinToolTip="Target\nKismet System Library Object Reference",PinType.PinCategory="object",PinType.PinSubCategory="",PinType.PinSubCategoryObject=Class'"/Script/Engine.KismetSystemLibrary"',PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,DefaultObject="/Script/Engine.Default__KismetSystemLibrary",PersistentGuid=00000000000000000000000000000000,bHidden=True,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=FBE62274411FB583C9B4B1BD65745860,PinName="WorldContextObject",PinToolTip="World Context Object\nObject Reference",PinType.PinCategory="object",PinType.PinSubCategory="",PinType.PinSubCategoryObject=Class'"/Script/CoreUObject.Object"',PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=True,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,PersistentGuid=00000000000000000000000000000000,bHidden=True,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=9158349E4DEA996B4FB05A8F2DBFFF76,PinName="InString",PinToolTip="In String\nString\n\nThe string to log out",PinType.PinCategory="string",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,DefaultValue="Timeline Finished",AutogeneratedDefaultValue="Hello",PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=6B2F94B04D075F64B11C199C7C838CA2,PinName="bPrintToScreen",PinToolTip="Print to Screen\nBoolean\n\nWhether or not to print the output to the screen",PinType.PinCategory="bool",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,DefaultValue="true",AutogeneratedDefaultValue="true",PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=True,bOrphanedPin=False,) CustomProperties Pin (PinId=0822BF624BA6180F7EB31A85A34FEB61,PinName="bPrintToLog",PinToolTip="Print to Log\nBoolean\n\nWhether or not to print the output to the log",PinType.PinCategory="bool",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,DefaultValue="true",AutogeneratedDefaultValue="true",PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=True,bOrphanedPin=False,) CustomProperties Pin (PinId=27EA7C2347F31C8175494F8E72C44102,PinName="TextColor",PinToolTip="Text Color\nLinear Color Structure\n\nThe color of the text to display",PinType.PinCategory="struct",PinType.PinSubCategory="",PinType.PinSubCategoryObject=ScriptStruct'"/Script/CoreUObject.LinearColor"',PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,DefaultValue="(R=0.000000,G=0.660000,B=1.000000,A=1.000000)",AutogeneratedDefaultValue="(R=0.000000,G=0.660000,B=1.000000,A=1.000000)",PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=True,bOrphanedPin=False,) CustomProperties Pin (PinId=313E4CB8477598702B012F977E1BE1E0,PinName="Duration",PinToolTip="Duration\nFloat (single-precision)\n\nThe display duration (if Print to Screen is True). Using negative number will result in loading the duration time from the config.",PinType.PinCategory="real",PinType.PinSubCategory="float",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,DefaultValue="2.000000",AutogeneratedDefaultValue="2.000000",PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=True,bOrphanedPin=False,) CustomProperties Pin (PinId=8CA5AC9D4C201A05A96C4C8DBDB3E835,PinName="Key",PinToolTip="Key\nName\n\nIf a non-empty key is provided, the message will replace any existing on-screen messages with the same key.",PinType.PinCategory="name",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=True,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,DefaultValue="None",AutogeneratedDefaultValue="None",PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=True,bOrphanedPin=False,) End Object
Click Compile and Save buttons.
Close the Blueprint Editor and navigate to the Content Browser. Find your BP_TimelineActor and drag off it into the Level.
Click Play button for checking result.

After a default Timeline length of 5 seconds, The text "Timeline Finished" will appear on the top left corner of the viewport.

Renaming Timelines

When using multiple Timelines in your Blueprints, it is important to name each Timeline accordingly. By default, all Timelines are named "Timeline_n" where n is a serialized number at the end. You can rename a Timeline by right-clicking it within the Graph tab or in the My Blueprint tab and selecting Rename.

Opening the Timeline Editor

Creating a timeline may not be useful unless you set it up with something to perform. For more information on editing Timelines, please see the Timeline Editing page.

Creating Timelines

You can create and instantiate your own Timeline Component in an Actor class by following the steps below.

Navigate to your C++ Classes folder and click the Add+. From the drop down menu select New C++ Class.
Select Actor class as a Parent Class.

Click for full view.

Name created Actor class Timeline Actor.

Click for full view.

Navigate to your TimelineActor.h file and include following TimelineComponent class library.

TimelineActor.h

	
			#include "Components/TimelineComponent.h"

Implement the following class declaration inside the TimelineActor class defintion:

TimelineActor.h

	
			protected:
	
				UPROPERTY(EditAnywhere, BlueprintReadWrite)
				UTimelineComponent* ExampleTimelineComp;

In this code sample, you use the Property Specifier Tags, EditAnywhere, and BlueprintReadWrite.

Navigate to the TimelineActor.cpp file, then add the following code to your TimelineActor constructor ATimelineActor::ATimelineActor()

TimelineActor.cpp

	
			ATimelineActor::ATimelineActor()
			{
				// Set this actor to call Tick() every frame. You can turn this off to improve performance if you don't need it.
				PrimaryActorTick.bCanEverTick = true;
				ExampleTimelineComp = CreateDefaultSubobject<UTimelineComponent>(TEXT("TimelineComponent"));
			}

Compile your code.
Navigate to the C++ classes folder, right-click on your TimelineActor and create a Blueprint based on your TimelineActor class. Name it Bp_TimelineActor.
Once you have created your TimelineActor Blueprint, you can view the Class Defaults. From the Components tab, you should see your example Timeline Component.

Work-In-Progress Code

TimelineActor.h

	
		#pragma once
		#include "Components/TimelineComponent.h"
		#include "CoreMinimal.h"
		#include "GameFramework/Actor.h"
		#include "TimelineActor.generated.h"
	
		UCLASS()
		class CPPTIMELINE_API ATimelineActor : public AActor
		{
			GENERATED_BODY()
	
		public:
			// Sets default values for this actor's properties
			ATimelineActor();
	
		protected:
			// Called when the game starts or when spawned
			virtual void BeginPlay() override;
	
		public:
			// Called every frame
			virtual void Tick(float DeltaTime) override;
	
		protected:
			UPROPERTY(EditAnywhere, BlueprintReadWrite)
			UTimelineComponent* ExampleTimelineComp;
		};

TimelineActor.cpp

	
		#include "TimelineActor.h"
	
		// Sets default values
		ATimelineActor::ATimelineActor()
		{
			// Set this actor to call Tick() every frame. You can turn this off to improve performance if you don't need it.
			PrimaryActorTick.bCanEverTick = true;
			ExampleTimelineComp = CreateDefaultSubobject<UTimelineComponent>(TEXT("TimelineComponent"));
		}
	
		// Called when the game starts or when spawned
		void ATimelineActor::BeginPlay()
		{
			Super::BeginPlay();
		}
	
		// Called every frame
		void ATimelineActor::Tick(float DeltaTime)
		{
			Super::Tick(DeltaTime);
		}

Timeline Variables

When you create a Timeline Component in C++ using UProperty Specifiers, it will become available as a variable in your Components tab. This may be useful for designers who would like to continue to make iterations to your TimelineComponent via Blueprint Scripting.

Image above shows using the native C++ Timeline Variable to get the Current Play Rate value of the Timeline in Blueprint.

For a complete list of the available Blueprint Timeline nodes and their functionality please see the Timeline nodes page.

Creating a FTimeLineEvent

Timeline Events (FOnTimelineEvent) are Dynamic Delegates that provide functionality to a Timeline Component to handle an Event. Follow the steps below to create your own FTimeLineEvent to be bound to your Timeline Component's finished functionality.

Navigate to TimelineActor.h file and declare the following code in the Class Definition:

TimelineActor.h

	
			protected:
	
				//Delegate signature for the function which will handle our Finished event.
				FOnTimelineEvent TimelineFinishedEvent;
	
				UFUNCTION()
				void TimelineFinishedFunction();

Navigate to TimelineActor.cpp and implement the following code:

TimelineActor.cpp

	
			 void ATimelineActor::TimelineFinishedFunction()
			 {
				UE_LOG(LogTemp, Warning, TEXT("Finished Event Called."));
			 }

Navigate to ATimelineActor::BeginPlay() method, and implement the following code:

TimelineActor.cpp

		// Called when the game starts or when spawned

		void ATimelineActor::BeginPlay()
		{
			Super::BeginPlay();

			TimelineFinishedEvent.BindUFunction(this, FName("TimelineFinishedFunction"));
			ExampleTimelineComp->SetTimelineFinishedFunc(TimelineFinishedEvent);
			ExampleTimelineComp->PlayFromStart();
		}

You have now successfully bound your TimelineFinished Event to your custom TimelineFinished function.

Compile your code. Open Editor and navigate to the Content Browser. Find your BP_TimelineActor and drag off it into the Level.
Press Play button. You should see the following message in the Output Log window:

Finished Code

TimelineActor.h

	
		#pragma once
		#include "Components/TimelineComponent.h"
		#include "CoreMinimal.h"
		#include "GameFramework/Actor.h"
		#include "TimelineActor.generated.h"
	
		UCLASS()
		class CPPTIMELINE_API ATimelineActor : public AActor
		{
			GENERATED_BODY()
	
		public:
			// Sets default values for this actor's properties
			ATimelineActor();
	
		protected:
			// Called when the game starts or when spawned
			virtual void BeginPlay() override;
	
		public:
			// Called every frame
			virtual void Tick(float DeltaTime) override;
	
		protected:
			UPROPERTY(EditAnywhere, BlueprintReadWrite)
			UTimelineComponent* ExampleTimelineComp;
	
		protected:
	
			//Delegate signature for the function which will handle our Finished event.
			FOnTimelineEvent TimelineFinishedEvent;
	
			UFUNCTION()
			void TimelineFinishedFunction();
		};

TimelineActor.cpp

	
		#include "TimelineActor.h"
	
		// Sets default values
		ATimelineActor::ATimelineActor()
		{
			// Set this actor to call Tick() every frame. You can turn this off to improve performance if you don't need it.
			PrimaryActorTick.bCanEverTick = true;
			ExampleTimelineComp = CreateDefaultSubobject<UTimelineComponent>(TEXT("TimelineComponent"));
		}
	
		// Called when the game starts or when spawned
	
		void ATimelineActor::BeginPlay()
		{
			Super::BeginPlay();
	
			TimelineFinishedEvent.BindUFunction(this, FName("TimelineFinishedFunction"));
			ExampleTimelineComp->SetTimelineFinishedFunc(TimelineFinishedEvent);
			ExampleTimelineComp->PlayFromStart();
		}
	
		// Called every frame
		void ATimelineActor::Tick(float DeltaTime)
		{
			Super::Tick(DeltaTime);
		}
	
		void ATimelineActor::TimelineFinishedFunction()
		{
			UE_LOG(LogTemp, Warning, TEXT("Finished Event Called."));
		}