Dragutin Sredojević

Hardware | component research | FPV flight testing

A hands-on quadcopter project where I researched the parts, ordered the frame, motors, propellers, flight controller, battery and FPV gear online, then assembled and wired the drone myself. I treated it like a full build rather than a kit: matching the power system, checking weight and thrust, keeping the wiring serviceable and flight-testing the result outdoors until it felt stable.

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Solo · Unity · C# · Android

A complete billiards game I built and shipped on my own for Android. It runs on custom ball physics I worked out from the equations of motion, with responsive aiming and a UI that adapts to both portrait and landscape. I built a small in-house editor to lay out the levels, added an in-app shop for cues, and tuned the whole thing to hold a steady frame rate across a range of phones.

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Unity template | billiards physics | Asset Store product

A reusable Unity billiards template I published on the Asset Store. It packages the billiard physics, table setup, aiming controls, camera modes, sample gameplay UI and documentation into a project other developers can use as a starting point. Under the hood it uses an event-driven collision model with Unity Jobs and Burst so the simulation stays accurate and fast enough for a polished billiards game.

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C# · physics engine · collision detection

A rigid-body physics engine I am writing from scratch. It does narrow-phase collision detection with GJK on the Minkowski difference for convex shapes, then resolves contacts with an impulse-based solver. The goal is to understand real-time simulation from first principles.

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