Behavior Profiles and Conditions

Behavior Profiles & Conditions

Overview

Stack Size Adjuster operates under a state machine that bridges world configuration, dynamic GameRules, and network packets across server and client boundaries.

---

🔄 State Machine Lifecycle Diagram

               +----------------------------------+
               |  Server Startup / World Creation |
               +----------------------------------+
                                |
                                v
               [ Load Baseline Config Template ]
               (`config/stack-size-adjuster.json`)
                                |
                                v
               [ Register Dynamic GameRules ]
               (`items_64_limit`, `items_16_limit`, etc.)
                                |
                +---------------+---------------+
                |                               |
        Newly Created World             Existing Loaded World
                |                               |
                v                               v
    Apply Config Defaults to Rules      Load GameRules from `level.dat`
                |                               |
                +---------------+---------------+
                                |
                                v
              [ Initialize Active StackSizeManager ]
                                |
                                v
              [ Player Join Event / GameRule Edit ]
                                |
                                v
             [ Dispatch S2C Packet: sync_limit ]
                                |
                                v
             [ Force Client Menu State Refresh ]

---

⚙️ Trigger Events & Handlers

1. Server Initialization (ServerLifecycleEvents.SERVER_STARTED):
   • Reloads baseline config file.
   • If world is newly created (!overworldData.isInitialized()), populates world GameRules from baseline config.
   • Initializes StackSizeManager limits from current world GameRules.
2. Player Connect (ServerPlayConnectionEvents.JOIN):
   • Sends initial StackSizeLimitSyncPayload to joining player.
3. In-Game Rule Modification (MinecraftServerMixin.onGameRuleChanged):
   • Detects changes to stack-size-adjuster:* GameRules.
   • Updates StackSizeManager volatile fields.
   • Broadcasts updated limits to all online players and triggers broadcastFullState().