Mongerz Leaks

JEST® JS Game Engine v0.3 — Now Available

The new JEST® JS Game Engine v0.3 is now available for download on GitHub.

Source: https://github.com/jestingly/jest0.3

JEST® JS Game Engine v0.3 (formerly Gravity)
by Antago (God of Gravity) • author of Graal2001 & Destiny

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Developer Notes — Changes from v0.2 to v0.3

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• Marquee Tool — Undo/Redo Integration
  The marquee selection tool is now integrated into the engine's undo/redo governor.
  
  • Selecting and deselecting a marquee can be undone
  • Floating and defloating a marquee can be undone
  • Deleting a marquee can be undone
• JANI Animation Editor (Beta)
  Introduces an experimental JANI editor for composing animation script files.
  
  • JANI files are nearly identical to Graal's GANI animation files
  • Create and edit animation scripts
  • Experimental — additional bug testing is needed
  
  Enable or disable the editor in:
  /js/embed/embed.js
• NPC / Entity Support
  NPCs can now be added directly to levels using the new Entities tool in the Level Editor.
  
  • Add NPCs through the sidebar's Entities menu
  • Press E to equip the Entities tool
  • Click NPCs to select and manipulate them
  • View all NPCs through the Entities sidebar
  • Invisible NPCs and those using 1×1 pixel images can still be located through the sidebar
  • Open an expanded Script editor to modify an NPC's code
• Introducing Hooks
  NPCs are generally referred to as Hooks within the JEST® engine.
  
  A Hook represents custom code attached to a level, allowing developers to inject scripts and behaviors into their game worlds.
  
  Hooks can also reference image assets for their visual representation.
• Entity Image Paths
  Entity images are loaded relative to:
  
  /webfiles/files/images/
  
  For testing existing Graal levels, images can be uploaded to:
  
  /webfiles/files/images/misc/
  
  Example:
  If an image is stored in the misc directory, set the entity's image path to:
  
  misc/[filename]
  
  The engine will then locate and display the image.
• Bug Fixes & Improvements
  Various bugs, glitches, and internal issues have been addressed throughout the engine.

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Application Configuration

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Configure your JEST® application by editing the following files:

• index.html
• css/vars_local.css
• js/apps/jest/components/JestConfiguration_loc.js
• js/apps/jest/components/JestConfiguration_rem.js

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Previously Introduced — v0.2 Features

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The following features were introduced in v0.2 and remain part of the JEST® engine.

• WebSocket Support
  Includes a WebSocket class for connecting to remote servers.
  • Access via JestOnline
• Cloud Synchronization
  Data can be synchronized to a custom cloud server using JestCloud (beta).
• Account System (Beta)
  Includes a basic PHP login system.
  • Primarily intended for creator applications
  • Planned integration into JestPlay
• Electron Support
  Application can optionally be wrapped using Electron for desktop/mobile deployment.
• Load Order System
  Managed via load_order.txt
  • Generate using: /build_js_bundle.py
• Modular UI System
  Includes a UI system for building forms and interfaces.
• Built-in Applications
  • Tile Editor
  • Sprite Animator
  → Supports slicing spritesheets into animation sequences
  
  Located in:
  /js/jest/app/clients
  
  Toggle apps in:
  /js/embed/embed.js
• Game World Architecture
  Game worlds are defined using JSON (multiverse-ready structure).
• File System
  Files are handled through the JestFileLoader system.
  
  Example:
  /js/apps/jest/components/file/JestFileLoader.js
• Image System
  • JestImager → extends JestFileLoader
  • JestGraphic → wraps image data

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JEST® JS Game Engine v0.3
https://github.com/jestingly/jest0.3

Copyright © 1999–2026 • Antago (God of Gravity)