---
title: Reference
type: docs
weight: 7
---

Complete API reference and documentation for Hytale plugin development.

{{< cards >}}
  {{< card link="manifest-schema" title="Manifest Schema" subtitle="Complete plugin.json specification" >}}
  {{< card link="all-registries" title="All Registries" subtitle="Complete registry listing" >}}
  {{< card link="buildertools" title="Builder Tools" subtitle="Creative mode construction tools" >}}
{{< /cards >}}

## API Overview

Hytale provides a comprehensive Java API for plugin development:

### Core Systems
- **PluginBase** - Base class for all plugins
- **Universe/World** - World management
- **Entity/Player** - Entity handling
- **Events** - Event system
- **Commands** - Command framework

### Registries
Access game systems through typed registries:

```java
public class MyPlugin extends PluginBase {
    @Override
    public void start() {
        // All registries accessible via PluginBase
        EventRegistry events = getEventRegistry();
        CommandRegistry commands = getCommandRegistry();
        TaskRegistry tasks = getTaskRegistry();
        AssetRegistry assets = getAssetRegistry();
        BlockStateRegistry blocks = getBlockStateRegistry();
        CodecRegistry codecs = getCodecRegistry();
    }
}
```

## Quick Reference

### Plugin Lifecycle

| Method | Called When |
|--------|-------------|
| `setup()` | Before start, for pre-initialization |
| `start()` | Plugin is enabled |
| `shutdown()` | Plugin is disabled |

### Event Priorities

| Priority | Value | Use Case |
|----------|-------|----------|
| FIRST | -21844 | Pre-processing, logging |
| EARLY | -10922 | Early modifications |
| NORMAL | 0 | Standard handlers |
| LATE | 10922 | Late modifications |
| LAST | 21844 | Final processing, cleanup |

### Common ArgTypes

| Type | Description |
|------|-------------|
| BOOLEAN | true/false |
| INTEGER | Whole numbers |
| DOUBLE | Decimal numbers |
| STRING | Single word text |
| GREEDY_STRING | Multi-word text |
| PLAYER_REF | Online player |
| WORLD | World name |
| ENTITY_ID | Entity UUID |

See [Command Arguments](/commands/arguments/) for the complete list.

## External Resources

- Hytale Official Website
- Plugin Development Forum
- Community Discord