Unity Ecs Patterns

This breaks down Unity's DOTS architecture with actual production patterns you'll need when moving from GameObject-based code to ECS. It covers the core shift from object-oriented to data-oriented design, shows proper ISystem implementation with Burst compilation, and handles the tricky bits like Entity Command Buffers for structural changes and Aspects for grouping related components. The examples focus on real scenarios like movement systems, entity spawning, and query optimization. If you're dealing with thousands of entities or need serious performance gains from parallelization, this gives you the concrete patterns to structure your ECS code properly instead of fighting the paradigm shift.