SScript

SScript — Server Scripting Language for Minecraft

SScript is a lightweight programming language for Minecraft server automation. Write scripts in Python/Lua-like syntax to execute commands, automate tasks, and control server behavior without touching Java code.

What It Does

Core Purpose: Execute automated commands and logic on your Minecraft server.

• 🎯 Command Execution — Run commands programmatically (/say, /give, /setblock, etc.)
• ⚙️ Task Automation — Run initialization scripts, scheduled tasks, bulk operations
• 🔧 Server Logic — React to player actions (join/leave, chat, block breaks, deaths, sleep)
• 📝 Simple Syntax — Python-like language anyone can learn
• ⚡ Non-blocking — Tasks run without freezing the server

Quick Start

1. Create a script in sscripts/boom.ss:

log "BOOM SPAWN!"

func boom():
    run "fill 10 50 10 -10 90 -10 air destroy"
    # boom! >:3
end

boom()

2. Create event handler in sscripts/handlers.event.ss:

on player_join(player):
    run "say " + player.name + " joined"
    run "execute at " + player.name + " run fill ~10 50 ~10 ~-10 90 ~-10 air"
end

on player_chat(player, message):
    log player.name + ": " + message
end

3. Load and run:

/sscript run boom.ss
/sscript debug on
/sscript debug off - no spam [Server]: ...

Done! Scripts execute without restart.

Language Features

• Variables & Types: Strings, numbers, booleans, lists, objects
• Control Flow: if/elif/else, for, while, try/catch
• Functions: Define with func or def, call sync or async
• Events: React to player actions, server events
• Built-ins: 60+ functions for players, blocks, math, strings, files
• Async Support: Background tasks with wait keyword

Commands

Execute scripts and control execution:

/sscript run <file>                    # Execute script
/sscript run <file> function <name>    # Call specific function
/sscript monitor [all|<id>| ]            # View running tasks
/sscript stop [all|<id>|<file>]               # Stop running task
/sscript reload [all|<id>|<file>]             # Restart task
/sscript debug [on|off]                # Toggle debug output server

Documentation

📖 Full documentation with examples and API reference:

• English: docs/en
• Русский: docs/ru

What Else?

Beyond command execution, SScript can:

• 📊 Store Data — Global variables persist across restarts (globals.json)
• 📡 HTTP Requests — Fetch data from APIs or send webhooks
• 💾 File I/O — Read/write files and JSON
• 🎮 Player Data — Access health, gamemode, coordinates, NBT data
• 🏷️ Tag System — Organize players with custom tags
• 🔍 Selectors — Query players dynamically (@a[tag=admin], @a[distance=..100])

Performance

• ⚡ Tick-safe — Tasks automatically spread across server ticks to prevent lag
• 🔄 Non-blocking — Event handlers run asynchronously (don't freeze gameplay)
• 💪 Limits — 500 max processes, 20 spawn/tick, 50 statements/tick

Requirements

• Java 21+
• Fabric Loader 0.14+
• Minecraft 1.21.11

Installation

1. Download the mod JAR
2. Put in mods/ folder
3. Start server
4. Place scripts in sscripts/

Example: Chat Logger

# sscripts/chat_logger.event.ss

func log_chat(player_name, message):
    file_mkdirs("sscripts/logs")
    line = "[" + player_name + "] " + message
    file_append("sscripts/logs/chat.log", line + "\n")
end

on player_chat(player, message):
    log_chat(player.name, message)
end

Links

• Documentation: docs
• Source: GitHub

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