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SDK 1.1
SDK 1.1
  • Welcome
  • Overview
    • What is coherence?
    • How does coherence work?
    • Rooms and Worlds
    • Features and Roadmap
    • Release Notes
    • Known issues and Troubleshooting
  • Learn
    • Beginner's guide to networking
    • Package samples
    • First Steps tutorial
      • 1. Basic syncing
        • 1.2. Animation parameters
        • 1.3. Sending commands
      • 2. Physics / Authority transfer
      • 3. Areas of interest
      • 4. Parenting entities
      • 5. Complex hierarchies
      • 6. Persistence
    • Campfire project
      • Game mechanics
      • Leveraging object pooling
      • Remote interactions: Chairs
      • Remote interactions: Trees
      • A unique object with complex state
      • Custom instantiation and destruction
      • Running a server-side NPC
      • Playing audio and particles
      • A simple text chat
    • How to network [genre]…
      • Racing
      • Turn-based
      • First-Person Shooter
      • MMO
      • Fighting
    • Video tutorials
  • Get started
    • Installation
    • Scene Setup
      • Sample UIs
    • Prefab setup: CoherenceSync
    • Testing locally
      • Tips and recommendations
    • coherence Cloud
      • Create a free account
      • Deploy a Replication Server
      • Share builds
  • coherence SDK for Unity
    • Components
      • CoherenceSync
      • CoherenceBridge
      • CoherenceLiveQuery
      • CoherenceTagQuery
      • Order of execution
    • Asset Management
      • Using CoherenceSyncConfig to instantiate GameObjects locally
      • CoherenceSyncConfigRegistry Save Modes
    • Networking State Changes
      • Supported types
      • Messaging with Commands
      • Syncing child GameObjects
      • Parenting network entities
        • Direct child CoherenceSyncs
        • Deeply-nested CoherenceSyncs
        • Nesting Prefabs at Edit time
      • Animation
      • CoherenceSync references
      • [Sync] and [Command] Attributes
      • [OnValueSynced] Attribute
      • Creating your own syncable member
      • Custom Component Actions
    • Baking (Code generation)
    • Scene Management
    • Authority
      • Authority transfer
      • Server-authoritative setup
    • Lifetime
      • Persistence
      • Example – a global counter
    • Optimization
      • Simulation Frequency
      • Areas of Interest
      • Level of Detail (LOD)
    • Profiling
    • Interpolation
    • Rigid Bodies
    • Settings
    • Simulation Frame
    • Replication Server
    • Simulators
      • Scripting: Client vs Simulator
      • Local Development
      • World Simulators
      • Room Simulators
      • Simulator Slugs
      • Multi-Room Simulators
      • Build and Publish
      • Command-line arguments
      • Load Balancing
    • Client-Hosting
    • Client Connections
    • Rollback Networking Support
    • World Origin Shifting
    • Offline gameplay
    • CLI
    • Upgrade Guide
      • Upgrade 1.0 -> 1.1
      • Upgrade 0.10 -> 1.0
      • Upgrade 0.9 -> 0.10
  • Hosting
  • coherence Cloud
    • Developer Portal
    • Dashboard
    • Worlds
    • Rooms
    • Lobbies
    • Game Services
      • Account
      • Key-Value Store
    • Using coherence Cloud in Unity
      • Worlds
      • Rooms
      • Lobbies
      • Game Services
        • Authentication Service (Player Accounts)
        • Key-value store
  • Schema explained
    • Overview
    • Specification
    • Field settings
    • Archetypes
  • coherence Scripting API
  • Additional resources
    • Community
    • Pricing
    • Quick Samples
    • Continuous Integration
    • Unreal Engine Support
    • WebGL Support
    • Peer-to-Peer Support (P2P)
    • Glossary
  • Credit cost & pricing
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  • Deterministic simulation
  • Deep bindings

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  1. Learn
  2. How to network [genre]…

Fighting

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Fighting games come in many shapes and forms. Usually they involve 2 or more players fighting each other. The players can kick, punch, block, grab and trigger intricate combos for extra damage. Often this type of game relies on quick reactions to the opponent's movement.

Deterministic simulation

For a fighting game, we need a reliable game state regardless of user ping. It needs to be deterministic. For example, if two players press the kick button a few milliseconds apart, the Simulator needs to be able to figure out which player is the one doing the kicking, and which is the one getting kicked. Our solution is called input queues and the . The key idea is that only the input is being processed by the Client, and the Simulator is responsible for deciding the outcome. The Simulator stores a queue of inputs, which is then used to decide on the correct order of actions.

Deep bindings

If you want to synchronize more than just the root of the Game Object, e.g. if you want to have precise replication of ragdoll on all Clients, you need to create bindings to more that just the root transform. We support which allow you to select any object in the hierarchy and synchronize whatever is needed.

setup is described in great detail here
deep bindings