his practical course teaches developers how to build a simple 2D physics engine from scratch using Java, guided by lessons inspired by the educational series from GamesWithGabe. Instead of relying on prebuilt engines, learners explore the math and logic behind real-time physics simulation.

The course begins with foundational vector mathematics, which powers movement and spatial calculations in game systems. Students then progress to creating primitive shapes, understanding point interactions, and implementing rotation in 2D space. These building blocks form the core of collision detection and object behavior.

As the lessons advance, learners implement raycasting techniques and shape collision testing, including circle and box interactions. The focus is on understanding how physics engines evaluate space, detect impacts, and respond accurately to maintain consistent simulation behavior.

By the end of the course, students gain a working understanding of how physics systems are structured internally. This knowledge strengthens problem-solving skills and deepens appreciation for how professional engines operate. The course is ideal for aspiring engine programmers