SpyHITW (Hybrid Plugin-Mod System)
SpyHITW is a highly optimized, hybrid "Hole In The Wall" minigame system built for Minecraft 1.21.11. It is split into a server-side Referee/Director (Paper Plugin) and a client-side Visuals/Physics engine (Fabric Mod) to achieve zero-lag visual interpolation and client-authoritative solid collisions.
It is a client-side dependency for SpyHITW-paper plugin.
spyhitw-fabric (Client Mod)
The Fabric mod intercepts instructions from the server to local visual renderers and physics loops:
- Network Packet Listener: Deserializes serialized byte streams and updates the local wall registry.
- Visual Renderer: Draws virtual walls using client-side BlockRenderDispatcher and WorldRenderEvents.AFTER_ENTITIES (rendering high-fidelity blocks with full refresh rate interpolation).
- Zero-Lag Physics Injection: Uses Mixin to inject solid VoxelShape collision boxes into Entity#findCollisions(). Forces the client to collide locally against moving walls, preventing phasing and rubber-banding.
- Dynamic Audio Engine: Automatically plays client-side music loops during active games, syncing with operator preference settings.
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.11
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
Verified by MCModsHub
- Ships as spyhitw-fabric-1.0.0.jar — drop this file into the mods folder
- Download size: 19 KB
- Download link checked 15 Sept 2026 — working
These come from our own check of the pack file, not from the source page.