NPCJason - Desktop Pet Companion

NPCJason is a Windows desktop pet that lives on top of your desktop, reacts to system events, swaps skins, chats with cloned friends, and ships as a standalone EXE so end users do not need Python installed.

Current release target: v1.8.0

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What’s New In v1.8.0

This release makes Jason feel more like a long-running desktop companion instead of a stack of disconnected bits:

• A lightweight familiarity system that remembers time spent together and subtly changes how Jason greets, reacts, and unlocks things
• Intentional startup greetings, quiet sign-offs, daily mood surfacing, and theme spotlights so sessions feel like they have a point of view
• Milestone moments for longer sessions and repeat visits, plus low-frequency ambient world beats that make the desktop feel inhabited
• Clearer unlock and discovery surfacing so new weird little rewards do not disappear quietly into the background
• A livelier mouse sidekick with Crumb Heist, Mug Recon, Zip Tie Recovery, and calmer ambient sidekick behavior
• More expressive success, confusion, interruption, and cooldown reactions so Jason reads as intentional instead of glitchy
• Runtime polish for the new long-session systems, including safer upgrade backfill for relationship history, better milestone delivery, and less intrusive suppression behavior

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Features

• Multiple skins: Classic Jason, Wizard Jason, Knight Jason, and Astronaut Jason
• Expanded built-in skins: Office Jason, Homelab Jason, Network Jason, and Responsible Jason
• External skin packs that can be dropped into skins/ and hot-reloaded live
• Skin Framework v2 with tags, quote affinity, sound sets, accessory offsets, and per-skin animation metadata
• Idle breathing and blinking animation
• Mood system: happy, tired, caffeinated
• Personality state system with idle, curious, smug, busy, annoyed, celebrating, confused, sneaky, and exhausted behavior
• Lightweight relationship/familiarity tracking so Jason greets you a little differently over time without getting weird about it
• Autonomous desktop movement with pacing, hesitation, edge inspection, and better recovery from awkward pathing
• Local companion framework with the pet mouse sidekick, follow/wait/react states, and menu-triggered interactions
• Cheese feeding and the mouse backflip routine with the exact Ansible Chris made me do it payoff
• Extra mouse life bits including Crumb Heist, Mug Recon, Zip Tie Recovery, and quieter ambient sidekick activity
• Three dance routines with contextual variety instead of a single repeated dance loop
• Event reactions for removable drives, low battery, and focused window changes
• Desk-item framework with coffee mug, keyboard, and tiny network rack interactions
• Structured quote packs with enable/disable support and repeat suppression
• Greeting/sign-off behavior, daily vibe surfacing, theme spotlights, ambient world moments, and milestone beats for longer-running sessions
• Lighter achievement-style unlock surfacing so new discoveries do not disappear into the background
• Clearer success/failure/confusion reactions so interrupted or completed bits feel intentional instead of accidental
• Quote follow-up chaining for short secondary punchlines and mini conversational beats
• App-title humor and Cisco joke packs integrated into the contextual quote system
• Networking Meltdown & Helpdesk Chaos pack for helpdesk, routing, and patch-panel suffering
• Context-aware mini-scenarios and gag chains such as Busy IT Morning, Homelab Troubleshooting, Network Victory Lap, Responsible Adult Moment, and Office Chaos
• Context-aware toy system with tricycle, rubber duck, tiny homelab server cart, and stress ball interactions
• Lightweight rare-event system for low-frequency special moments
• Favorites that bias skins, toys, scenarios, and quote packs toward your preferred flavor of desktop menace
• Unlockable discoveries including bonus quote/scenario content and Astronaut Jason
• Seasonal and special modes such as April Fools, Patch Day Panic, Homelab Weekend, and Monday Morning Survival
• Behavior tuning controls for activity level, quote frequency, and companion frequency
• Optional sound effects with mute and volume control
• Quiet hours and fullscreen suppression for automatic chatter
• Custom sayings from sayings.txt
• Extra dialogue packs from dialogue-packs/
• Favorites and recent-saying history
• Settings persistence in %APPDATA%\NPCJason\settings.json, including selected skin, quote packs, discoveries, favorites, mute state, and recent scenario continuity
• Multi-pet support with light pet-to-pet chatter
• Update checks against the GitHub releases feed
• Diagnostics log output in %APPDATA%\NPCJason\logs\npcjason.log

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Standalone Builds

Yes: NPCJason can be fully standalone.

• End users can run NPCJason.exe with no Python installed
• The installer bundles the standalone app as well
• Python and pip are only needed if you want to run or build from source

The project uses PyInstaller for standalone packaging today. If you ever want an even more native-feeling binary, Nuitka would be the next thing to evaluate, but it is not required for end-user distribution.

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For Users

Install the easy way

1. Open the Releases page
2. Download either:
   • NPCJason.exe for the standalone app
   • NPCJason_Setup_1.8.0.exe for the installer
3. Launch it and let Jason haunt your desktop

Controls

Action	What Happens
Left-click	Dance + say something
Right-click	Open the quick menu
Click + drag	Move Jason anywhere
Tray icon	Show/Hide, settings, skins, companion controls, toys, scenarios, quote packs, discoveries, mute, special modes, updates, summon/dismiss pets

Custom sayings

Create a sayings.txt file next to NPCJason.exe. Entries are separated by blank lines.

[any]
{pet_name} is on desktop watch.

[happy]
Everything is coming up {pet_name}.

[tired]
It is {time}. I would like fewer meetings.

NPCJason hot-reloads sayings.txt while running, so you usually do not need to restart the app.

Dialogue packs

Add extra .txt or .json files to dialogue-packs/. Text packs use the same section format as sayings.txt; JSON packs add categories, affinity rules, and weighting.

Skin packs

Add extra .json files to skins/. NPCJason will detect them at runtime, validate them, and add them to the skin menus.

Saved state

NPCJason stores state in %APPDATA%\NPCJason\.

• settings.json: position, skin, mood, sound, startup/update preferences, favorites, quiet hours, and reaction toggles
• settings.json also stores companion familiarity, streaks, theme rotation, milestone history, and unlock announcement memory
• shared_state.json: pet coordination, chatter, and pet-management commands
• logs\npcjason.log: diagnostics log
• sounds/: generated sound assets used for playback

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For Developers

Prerequisites

• Python 3.8+
• pip
• Windows 10/11

Run from source

python -m pip install .
python npcjason.py

Quick start script

run_npcjason.bat

Run tests

python -m pip install ".[build]"
python -m unittest discover -s tests -v
python -m compileall npcjason_app tests npcjason.py

Build the standalone EXE

build.bat

This installs dependencies from pyproject.toml, runs tests, generates the icon, and produces dist\NPCJason.exe.

Build the installer

1. Install Inno Setup 6
2. Run:

build_installer.bat

This runs tests, builds dist\NPCJason.exe, and produces NPCJason_Setup_1.8.0.exe.

Release automation

Publishing a GitHub release triggers .github/workflows/release.yml, which:

1. Reads the app version from source
2. Installs dependencies and validates them with pip check
3. Runs the test suite
4. Compiles the source tree as a packaging sanity check
5. Builds the standalone EXE
6. Builds the installer
7. Generates SHA256 checksums
8. Uploads all release assets to GitHub

Project layout

Path	Purpose
npcjason.py	Thin launcher entrypoint
npcjason_app/app.py	Thin application entry wrapper
npcjason_app/app_controller.py	Main composition root and runtime orchestration
npcjason_app/pet_window.py	Tk window adapter and on-screen geometry
npcjason_app/runtime_state.py	Explicit runtime/suppression/pause state model
npcjason_app/scheduler.py	Managed Tk scheduler and UI dispatch loop
npcjason_app/settings_service.py	Settings load/save/import/export/reset logic
npcjason_app/persistence.py	Settings/shared-state schema sanitization
npcjason_app/companion_presence.py	Familiarity, greetings/sign-offs, milestones, daily vibe, and theme spotlight logic
npcjason_app/speech_history.py	Recent/favorite saying history management
npcjason_app/dialogue.py	Quote packs, dialogue selection, repeat suppression, event text
npcjason_app/personality.py	Personality states, moodful transitions, and quote/movement bias
npcjason_app/movement.py	Autonomous desktop movement planning and recovery
npcjason_app/scenarios.py	Gag-chain and mini-scenario definitions/runtime
npcjason_app/desk_items.py	Desk-item definitions, cooldowns, and runtime prop behavior
npcjason_app/notifications.py	Context-reaction rules for title-aware behavior beats
npcjason_app/seasonal.py	Seasonal and special-mode activation rules
npcjason_app/unlocks.py	Discoveries, unlockables, and progress tracking
npcjason_app/skins.py	Frame rendering + skin loading
npcjason_app/toys.py	Toy definitions, cooldowns, and runtime toy behavior
npcjason_app/toy_window.py	Lightweight companion windows used for toy rendering
npcjason_app/rare_events.py	Low-frequency contextual event selection
npcjason_app/updates.py	Update parsing, async checks, and prompt coordination
npcjason_app/tray_controller.py	System tray adapter and tray-state modeling
npcjason_app/windows_platform.py	Screen/work-area geometry helpers
npcjason_app/windows_events.py	Native Windows event hooks
npcjason_app/settings_window.py	Settings UI
npcjason_app/sound.py	Sound asset generation + playback
npcjason_app/startup.py	Windows startup shortcut management
npcjason_app/diagnostics.py	Diagnostics logging helpers
tests/	Automated unit tests
skins/	External skin definitions
dialogue-packs/	External dialogue packs
.github/workflows/release.yml	Release automation

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License

MIT - see LICENSE