SLAP - Streamer Live Attack & Pelting

Throw stuff at your screen. That's it. That's the app. ╰(▔∀▔)╯

SLAP is a streamer tool that lets you (and your chat) hurl images at a target on your stream. Items have real physics, they bounce, pile up, explode, and generally make a mess. Add it as a browser source in OBS or Meld and let the chaos begin.

Support manual shapes or VTUBE STUDIO integration for collision detection!!

For Vtubers AND FaceCam Streamers alike!

Vtubers:

• Supports full tracking of Vtube Studio model
• Supports hit reaction and expression change on hit

Fleshtubers:

• Use custom shapes for face cam streams! 
• Connects to OBS and loads your scenes, adjust position of the collider per scene and you're good!

What it does

Drop in any image and throw it at a collision target on screen. Items use real 2D physics (Matter.js) so they bounce off the target, collide with each other, and pile up at the bottom. Set up hotkeys to rapid-fire your favorites, or let Twitch chat do the throwing for you.

Features

• Real 2D physics engine: bouncing, friction, weight, piling
• Per-item physics tuning: bounciness, friction, air resistance, density, size
• 8 built-in presets (Bouncy Ball, Sticky Jelly, Anvil, Feather, Rubber, Ice Cube, Explosive, and Default)
• Alpha hull collision shapes: items collide based on their actual silhouette, not just a circle
• Collision frame swap: items change image on impact
• Easily import or export packs of items and share them with your streamer friends!

Explosions

• Any item can be explosive, radial force with distance falloff
• Trigger on impact or set a timed fuse
• Blast radius and force fully configurable

Twitch Integration

• Connect your Twitch account
• Map channel point redeems to specific items
• Chat commands (!throw tomato)
• Auto-throw on follows, subs, gifted subs, bits, and raids
• Multipliers: 50 bit cheer = 5 throws, raid of 100 = 10 throws, etc.
• Per-trigger cooldowns and role restrictions (everyone, subs, mods, VIPs)

Stream-ready

• Transparent background: native alpha, works perfectly as an OBS or Meld browser source
• Combo items: throw multiple things at once with configurable spread
• Collections: organize items into groups
• Resizable/movable collision target (circle, rectangle, or triangle)

Dashboard

• Full control panel with live preview
• Item manager with add/edit modal, drag-and-drop image upload
• Global settings: throw speed, gravity, max items on screen
• FPS counter and performance monitoring in the status bar
• Built-in setup guide for OBS or Meld configuration
• WebSocket API for external control and custom integrations

• Available in 7 languages: English, Spanish, Portuguese (BR), German, French, Korean and Japanese

Screenshots provided by: https://www.twitch.tv/d3stiny82