docs.unity3d.com
  • Manual
  • Scripting API
  • Changelog
  • License
    Show / Hide Table of Contents
    • Global Namespace
      • Netcode​Conversion​Target
      • Netcode​Transform​Usage​Flags​Test​Authoring
      • Netcode​Transform​Usage​Flags​Test​Authoring.​Baker
      • Test​Net​Code​Authoring
      • Test​Net​Code​Authoring.​IConverter
    • Unity.​Net​Code
      • Apply​Current​Input​Buffer​Element​To​Input​Data<TInput​Buffer​Data, TInput​Component​Data>
      • Apply​Current​Input​Buffer​Element​To​Input​Data<TInput​Buffer​Data, TInput​Component​Data>.​Apply​Input​Data​From​Buffer​Job
      • Auto​Command​Target
      • Batch​Predict​Attribute
      • Client​Only​Variant
      • Client​Populate​Prespawned​Ghosts​System
      • Client​Server​Bootstrap
      • Client​Server​Bootstrap.​Play​Type
      • Client​Server​Tick​Rate
      • Client​Server​Tick​Rate.​Frame​Rate​Mode
      • Client​Server​World​Extensions
      • Client​Tick​Rate
      • Client​Track​Loaded​Prespawn​Sections
      • Command​Data​Interpolation​Delay
      • Command​Data​Utility
      • Command​Receive​System<TCommand​Data​Serializer, TCommand​Data>
      • Command​Receive​System<TCommand​Data​Serializer, TCommand​Data>.​Receive​Job​Data
      • Command​Receive​System​Group
      • Command​Send​System<TCommand​Data​Serializer, TCommand​Data>
      • Command​Send​System<TCommand​Data​Serializer, TCommand​Data>.​Send​Job​Data
      • Command​Send​System​Group
      • Command​Target
      • Command​Target​Component
      • Compare​Command​System​Group
      • Component​Type​Serialization​Strategy
      • Component​Type​Serialization​Strategy.​Default​Type
      • Connection​State
      • Connection​State.​State
      • Convert​Prediction​Entry
      • Copy​Input​To​Command​Buffer<TInput​Buffer​Data, TInput​Component​Data>
      • Copy​Input​To​Command​Buffer<TInput​Buffer​Data, TInput​Component​Data>.​Copy​Input​To​Buffer​Job
      • Default​Driver​Builder
      • Default​Smoothing​Action​User​Params
      • Default​Smoothing​Action​User​Params​Authoring
      • Default​Translation​Smoothing​Action
      • Default​Translation​Smoothing​Action.​Default​Static​User​Params
      • Default​Variant​System​Base
      • Default​Variant​System​Base.​Rule
      • Default​Variant​System​Group
      • Disable​Automatic​Prespawn​Section​Reporting
      • Disable​Automatic​Prespawn​Section​Reporting​Authoring
      • Disconnect​Reason​Enum​To​String
      • Dont​Serialize​For​Command​Attribute
      • Dont​Serialize​Variant
      • Dont​Support​Prefab​Overrides​Attribute
      • Driver​Migration​System
      • Enable​Packet​Logging
      • Fixed​Step​Ghost​Prediction​System​Group
      • Game​Protocol​Version
      • Ghost​Authoring​Component
      • Ghost​Authoring​Inspection​Component
      • Ghost​Child​Entity
      • Ghost​Child​Entity​Component
      • Ghost​Collection
      • Ghost​Collection​Prefab
      • Ghost​Collection​Prefab.​Loading​State
      • Ghost​Collection​System
      • Ghost​Component
      • Ghost​Component​Attribute
      • Ghost​Component​Serializer​Collection​Data
      • Ghost​Component​Serializer​Collection​System​Group
      • Ghost​Component​Utilities
      • Ghost​Component​Variation​Attribute
      • Ghost​Connection​Position
      • Ghost​Count
      • Ghost​Delta​Predictor
      • Ghost​Deserializer​State
      • Ghost​Despawn​System
      • Ghost​Distance​Data
      • Ghost​Distance​Importance
      • Ghost​Distance​Partitioning​System
      • Ghost​Distance​Partition​Shared
      • Ghost​Enabled​Bit​Attribute
      • Ghost​Field​Attribute
      • Ghost​Field​Sub​Type
      • Ghost​Group
      • Ghost​Importance
      • Ghost​Importance.​Scale​Importance​Delegate
      • Ghost​Input​System​Group
      • Ghost​Instance
      • Ghost​Mode
      • Ghost​Mode​Mask
      • Ghost​Optimization​Mode
      • Ghost​Owner
      • Ghost​Owner​Component
      • Ghost​Owner​Is​Local
      • Ghost​Prediction​History​System
      • Ghost​Prediction​Smoothing
      • Ghost​Prediction​Smoothing.​Smoothing​Action​Delegate
      • Ghost​Prediction​Smoothing​System
      • Ghost​Prediction​Switching​Queues
      • Ghost​Prediction​Switching​System
      • Ghost​Prediction​System​Group
      • Ghost​Prefab​Creation
      • Ghost​Prefab​Creation.​Component
      • Ghost​Prefab​Creation.​Component​Override
      • Ghost​Prefab​Creation.​Component​Override​Type
      • Ghost​Prefab​Creation.​Config
      • Ghost​Prefab​Type
      • Ghost​Receive​System
      • Ghost​Relevancy
      • Ghost​Relevancy​Mode
      • Ghost​Send​System
      • Ghost​Send​System​Data
      • Ghost​Send​Type
      • Ghost​Serializer​Attribute
      • Ghost​Serializer​State
      • Ghost​Simulation​System​Group
      • Ghost​Spawn​Buffer
      • Ghost​Spawn​Buffer.​Type
      • Ghost​Spawn​Classification​System
      • Ghost​Spawn​Queue
      • Ghost​Spawn​Queue​Component
      • Ghost​Spawn​System
      • Ghost​Spawn​System​Group
      • Ghost​Type
      • Ghost​Type​Component
      • Ghost​Type​Partition
      • Ghost​Update​System
      • ICommand​Data
      • ICommand​Data​Serializer<T>
      • IGhost​Component​Serializer​Registration
      • IInput​Buffer​Data
      • IInput​Component​Data
      • Incoming​Command​Data​Stream​Buffer
      • Incoming​Command​Data​Stream​Buffer​Component
      • Incoming​Rpc​Data​Stream​Buffer
      • Incoming​Rpc​Data​Stream​Buffer​Component
      • Incoming​Snapshot​Data​Stream​Buffer
      • Incoming​Snapshot​Data​Stream​Buffer​Component
      • INetwork​Stream​Driver​Constructor
      • Input​Event
      • IPCAnd​Socket​Driver​Constructor
      • IRpc​Command
      • IRpc​Command​Serializer<T>
      • Lag​Compensation​Config
      • Migration​Ticket
      • Net​Code​Debug​Config
      • Net​Code​Debug​Config​Authoring
      • Net​Code​Disable​Command​Code​Gen​Attribute
      • Net​Code​Physics​Config
      • Net​Debug
      • Net​Debug.​Log​Level​Type
      • Net​Debug​System
      • Network​Driver​Store
      • Network​Driver​Store.​Driver​Visitor
      • Network​Driver​Store.​Network​Driver​Instance
      • Network​Id
      • Network​Id​Component
      • Network​Id​Debug​Color​Utility
      • Network​Protocol​Version
      • Network​Receive​System​Group
      • Network​Snapshot​Ack
      • Network​Snapshot​Ack​Component
      • Network​Stream​Connection
      • Network​Stream​Connect​System
      • Network​Stream​Disconnect​Reason
      • Network​Stream​Driver
      • Network​Stream​In​Game
      • Network​Stream​Listen​System
      • Network​Stream​Protocol
      • Network​Stream​Receive​System
      • Network​Stream​Request​Connect
      • Network​Stream​Request​Disconnect
      • Network​Stream​Request​Listen
      • Network​Stream​Request​Listen​Result
      • Network​Stream​Request​Listen​Result.​State
      • Network​Stream​Snapshot​Target​Size
      • Network​Tick
      • Network​Time
      • Network​Time​Flags
      • Network​Time​System
      • Network​Time​System​Data
      • Outgoing​Command​Data​Stream​Buffer
      • Outgoing​Command​Data​Stream​Buffer​Component
      • Outgoing​Rpc​Data​Stream​Buffer
      • Outgoing​Rpc​Data​Stream​Buffer​Component
      • Pending​Spawn​Placeholder
      • Pending​Spawn​Placeholder​Component
      • Physics​Default​Variant​System
      • Physics​Graphical​Smoothing​Default​Variant
      • Physics​Velocity​Default​Variant
      • Physics​World​History
      • Physics​World​History​Singleton
      • Portable​Function​Pointer<T>
      • Position​Only​Variant
      • Position​Rotation​Variant
      • Position​Scale​Variant
      • Predicted​Fixed​Step​Simulation​System​Group
      • Predicted​Ghost
      • Predicted​Ghost​Component
      • Predicted​Ghost​Spawn
      • Predicted​Ghost​Spawn​List
      • Predicted​Ghost​Spawn​Request
      • Predicted​Ghost​Spawn​Request​Component
      • Predicted​Ghost​Spawn​System
      • Predicted​Physics​Config​System
      • Predicted​Physics​Non​Ghost​World
      • Predicted​Physics​Validation​System
      • Predicted​Simulation​System​Group
      • Pre​Serialized​Ghost
      • Pre​Spawned​Ghost​Index
      • Prespawn​Ghost​System​Group
      • Prespawn​Section​Ack
      • Receive​Rpc​Command​Request
      • Receive​Rpc​Command​Request​Component
      • Relevant​Ghost​For​Connection
      • Rotation​Only​Variant
      • Rotation​Scale​Variant
      • Rpc​Collection
      • Rpc​Command​Request<TAction​Serializer, TAction​Request>
      • Rpc​Command​Request<TAction​Serializer, TAction​Request>.​Send​Rpc​Data
      • Rpc​Command​Request​System​Group
      • Rpc​Deserializer​State
      • Rpc​Executor
      • Rpc​Executor.​Execute​Delegate
      • Rpc​Executor.​Parameters
      • Rpc​Queue<TAction​Serializer, TAction​Request>
      • Rpc​Serializer​State
      • Rpc​System
      • Rpc​System​Errors
      • Send​Rpc​Command​Request
      • Send​Rpc​Command​Request​Component
      • Send​To​Owner​Type
      • Server​Only​Variant
      • Server​Populate​Prespawned​Ghosts​System
      • Server​Track​Loaded​Prespawn​Sections
      • Shared​Ghost​Type​Component
      • Simulator​Preset
      • Smoothing​Action
      • Snapshot​Data
      • Snapshot​Data.​Data​At​Tick
      • Snapshot​Data​Buffer
      • Snapshot​Dynamic​Buffers​Helper
      • Snapshot​Dynamic​Data​Buffer
      • Spawned​Ghost
      • Spawned​Ghost​Entity​Map
      • Sub​Scene​Ghost​Component​Hash
      • Sub​Scene​With​Prespawn​Ghosts
      • Supports​Prefab​Overrides​Attribute
      • Switch​Prediction​Smoothing
      • Switch​Prediction​Smoothing​Physics​Ordering​System
      • Switch​Prediction​Smoothing​System
      • Transform​Default​Variant
      • Transform​Default​Variant​System
      • Transport​Type
      • Unique​Input​Tick​Map
      • Unscaled​Client​Time
    • Unity.​Net​Code.​Editor
      • Prespawned​Ghost​Preprocess​Scene
    • Unity.​Net​Code.​Generators
      • Type​Registry​Entry
      • User​Defined​Templates
    • Unity.​Net​Code.​Hybrid
      • Baker​Extensions
      • Enable​Animation​Controller​Prediction​Update
      • Ghost​Animation​Controller
      • Ghost​Animation​Controller​Interpolation​System
      • Ghost​Animation​Controller​Prediction​System
      • Ghost​Animation​Controller​Server​System
      • Ghost​Animation​Graph​Asset
      • Ghost​Playable​Behaviour
      • Ghost​Presentation​Game​Object​Authoring
      • Ghost​Presentation​Game​Object​Entity​Owner
      • Ghost​Presentation​Game​Object​Prefab
      • Ghost​Presentation​Game​Object​Prefab​Reference
      • Ghost​Presentation​Game​Object​System
      • Ghost​Presentation​Game​Object​Transform​System
      • IRegister​Playable​Data
    • Unity.​Net​Code.​Low​Level
      • Snapshot​Data​Buffer​Component​Lookup
      • Snapshot​Data​Lookup​Helper
    • Unity.​Net​Code.​Low​Level.​Unsafe
      • Ghost​Component​Serializer
      • Ghost​Component​Serializer.​Copy​To​From​Snapshot​Delegate
      • Ghost​Component​Serializer.​Deserialize​Delegate
      • Ghost​Component​Serializer.​Post​Serialize​Buffer​Delegate
      • Ghost​Component​Serializer.​Post​Serialize​Delegate
      • Ghost​Component​Serializer.​Predict​Delta​Delegate
      • Ghost​Component​Serializer.​Report​Prediction​Errors​Delegate
      • Ghost​Component​Serializer.​Restore​From​Backup​Delegate
      • Ghost​Component​Serializer.​Send​Mask
      • Ghost​Component​Serializer.​Serialize​Buffer​Delegate
      • Ghost​Component​Serializer.​Serialize​Child​Delegate
      • Ghost​Component​Serializer.​Serialize​Delegate
      • Ghost​Component​Serializer.​State
    • Scripting API
    • Unity.​Net​Code
    • Network​Tick

    Struct NetworkTick

    A simple struct used to represent a network tick. This is using a uint internally, but it has special logic to deal with invalid ticks, and it handles wrap around correctly.

    Inherited Members
    Object.Equals(Object, Object)
    Object.ReferenceEquals(Object, Object)
    Object.GetType()
    Namespace: Unity.NetCode
    Syntax
    [Serializable]
    public struct NetworkTick : IEquatable<NetworkTick>

    Constructors

    NetworkTick(UInt32)

    Constructor, the start tick can be 0. Use this instead of the default constructor since that will generate an invalid tick.

    Declaration
    public NetworkTick(uint start)
    Parameters
    Type Name Description
    UInt32 start

    The tick index to initialize the NetworkTick with.

    Properties

    Invalid

    A value representing an invalid tick, this is the same as 'default' but provide more context in the code.

    Declaration
    public static readonly NetworkTick Invalid { get; }
    Property Value
    Type Description
    NetworkTick

    IsValid

    Check if the tick is valid. Not all operations will work on invalid ticks.

    Declaration
    public readonly bool IsValid { get; }
    Property Value
    Type Description
    Boolean

    SerializedData

    The serialized data for a tick. Includes both validity and tick index.

    Declaration
    public uint SerializedData { get; set; }
    Property Value
    Type Description
    UInt32

    TickIndexForValidTick

    Get the tick index assuming the tick is valid. Should be used with care since ticks will wrap around.

    Declaration
    public readonly uint TickIndexForValidTick { get; }
    Property Value
    Type Description
    UInt32

    TickValue

    Helper property to enable exception-free visibility in the Entity Inspector

    Declaration
    [CreateProperty]
    public readonly FixedString32Bytes TickValue { get; }
    Property Value
    Type Description
    FixedString32Bytes

    Methods

    Add(UInt32)

    Add a delta to the tick, assumes the tick is valid.

    Declaration
    public void Add(uint delta)
    Parameters
    Type Name Description
    UInt32 delta

    The value to add to the tick

    Decrement()

    Decrement the tick, assumes the tick is valid.

    Declaration
    public void Decrement()

    Equals(Object)

    Compare two ticks, also works for invalid ticks.

    Declaration
    public override bool Equals(object obj)
    Parameters
    Type Name Description
    Object obj
    Returns
    Type Description
    Boolean
    Overrides
    ValueType.Equals(Object)

    Equals(NetworkTick)

    Compare two ticks, also works for invalid ticks.

    Declaration
    public bool Equals(NetworkTick compare)
    Parameters
    Type Name Description
    NetworkTick compare
    Returns
    Type Description
    Boolean
    Implements
    IEquatable<T>.Equals(T)

    GetHashCode()

    Get a hash for the tick.

    Declaration
    public override int GetHashCode()
    Returns
    Type Description
    Int32
    Overrides
    ValueType.GetHashCode()

    Increment()

    Increment the tick, assumes the tick is valid.

    Declaration
    public void Increment()

    IsNewerThan(NetworkTick)

    Check if this tick is newer than another tick. Assumes both ticks are valid.

    Declaration
    public bool IsNewerThan(NetworkTick old)
    Parameters
    Type Name Description
    NetworkTick old

    The tick to compare with

    Returns
    Type Description
    Boolean
    Remarks

    The ticks wraps around, so if either tick is stored for too long (several days assuming 60hz) the result might not be correct.

    Subtract(UInt32)

    Subtract a delta from the tick, assumes the tick is valid.

    Declaration
    public void Subtract(uint delta)
    Parameters
    Type Name Description
    UInt32 delta

    The value to subtract from the tick

    TicksSince(NetworkTick)

    Compute the number of ticks which passed since an older tick. Assumes both ticks are valid. If the passed in tick is newer this will return a negative value.

    Declaration
    public int TicksSince(NetworkTick older)
    Parameters
    Type Name Description
    NetworkTick older

    The tick to compute passed ticks from

    Returns
    Type Description
    Int32

    ToFixedString()

    Convert the tick to a fixed string. Also handles invalid ticks.

    Declaration
    public FixedString32Bytes ToFixedString()
    Returns
    Type Description
    FixedString32Bytes

    The tick index as a fixed string, or "Invalid" for invalid ticks.

    Operators

    Equality(in NetworkTick, in NetworkTick)

    Compare two ticks, also works for invalid ticks.

    Declaration
    public static bool operator ==(in NetworkTick a, in NetworkTick b)
    Parameters
    Type Name Description
    NetworkTick a
    NetworkTick b
    Returns
    Type Description
    Boolean

    Inequality(in NetworkTick, in NetworkTick)

    Compare two ticks, also works for invalid ticks.

    Declaration
    public static bool operator !=(in NetworkTick a, in NetworkTick b)
    Parameters
    Type Name Description
    NetworkTick a
    NetworkTick b
    Returns
    Type Description
    Boolean

    Did you find this page useful? Please give it a rating:

    Thanks for rating this page!

    Report a problem on this page

    What kind of problem would you like to report?

    • This page needs code samples
    • Code samples do not work
    • Information is missing
    • Information is incorrect
    • Information is unclear or confusing
    • There is a spelling/grammar error on this page
    • Something else

    Thanks for letting us know! This page has been marked for review based on your feedback.

    If you have time, you can provide more information to help us fix the problem faster.

    Provide more information

    You've told us this page needs code samples. If you'd like to help us further, you could provide a code sample, or tell us about what kind of code sample you'd like to see:

    You've told us there are code samples on this page which don't work. If you know how to fix it, or have something better we could use instead, please let us know:

    You've told us there is information missing from this page. Please tell us more about what's missing:

    You've told us there is incorrect information on this page. If you know what we should change to make it correct, please tell us:

    You've told us this page has unclear or confusing information. Please tell us more about what you found unclear or confusing, or let us know how we could make it clearer:

    You've told us there is a spelling or grammar error on this page. Please tell us what's wrong:

    You've told us this page has a problem. Please tell us more about what's wrong:

    Thank you for helping to make the Unity documentation better!

    Your feedback has been submitted as a ticket for our documentation team to review.

    We are not able to reply to every ticket submitted.

    In This Article
    • Constructors
      • NetworkTick(UInt32)
    • Properties
      • Invalid
      • IsValid
      • SerializedData
      • TickIndexForValidTick
      • TickValue
    • Methods
      • Add(UInt32)
      • Decrement()
      • Equals(Object)
      • Equals(NetworkTick)
      • GetHashCode()
      • Increment()
      • IsNewerThan(NetworkTick)
      • Subtract(UInt32)
      • TicksSince(NetworkTick)
      • ToFixedString()
    • Operators
      • Equality(in NetworkTick, in NetworkTick)
      • Inequality(in NetworkTick, in NetworkTick)
    Back to top
    Copyright © 2023 Unity Technologies — Terms of use
    • Legal
    • Privacy Policy
    • Cookies
    • Do Not Sell or Share My Personal Information
    • Your Privacy Choices (Cookie Settings)
    "Unity", Unity logos, and other Unity trademarks are trademarks or registered trademarks of Unity Technologies or its affiliates in the U.S. and elsewhere (more info here). Other names or brands are trademarks of their respective owners.
    Generated by DocFX on 18 October 2023