Tenis Playground

Tenis Playground is a hands-on mechanism sandbox. Drag ✋ gears, pulleys, belts and ratchets onto a pegboard, mesh them together, and watch 👀 the whole train come alive: turn the crank and every connected part spins at its true speed ⚡ and direction, all the way to the output. Every placement matters. Gears reverse direction when they mesh, belts carry motion across distance, and ratchets lock out the wrong ❌ direction entirely. A live readout shows the overall ratio, output RPM, torque and load in real numbers 🔢, while a stage-by-stage breakdown 🧾 lets you trace exactly how motion propagates through the chain you built, link by link. Beyond free 🆓 building, a set of twelve target 🎯 challenges asks you to hit a specific ratio or output under given constraints — a nice excuse to rethink a train from scratch. Builds you're proud of can be saved, renamed and reloaded any time ⏱️, and you can even snap a photo 📸 of your physical build (or pull one from your gallery) to keep alongside the saved rig. FEATURES - Drag ✋-and-drop pegboard with gears, pulleys, belts, ratchets and cranks - Live ratio, RPM, torque and load readout with animated 🎬 gauges - Per-link stage breakdown 🧾 showing how motion flows through the train - Specimen catalogue of gears, wheels and ratchets with searchable grid - Twelve built-in target 🎯 challenges with progress 📈 tracking - Save 💾, rename, reload and delete your own rigs - Attach a camera 📷 or gallery 🖼️ photo 📸 to any saved rig SCREENS Loading, Main Menu, Workshop (Bench / Readout / Stages), Part Inspector, Catalogue (Gears / Wheels / Ratchets), Specimen Detail, Rigs (Saved / Targets), Target 🎯 Detail, Settings (Preferences / Legal) CAMERA & GALLERY 📷 Attach a photo 📸 of your physical gear-train build 🔨 to any saved rig, either by taking a picture or picking one from your gallery 🖼️, viewable full-screen from the saved rigs list 📋. TECHNICAL Platforms: Android, iOS (Kotlin Multiplatform + Compose Multiplatform) Package: net.sofimob.comptenic.max Data: on device 📱 only — no account, no server