, I can tell you whether it’s feasible to recreate in Bedrock and how much work it would take.
However, if you want to understand why and see what’s actually possible, here’s the detailed breakdown. | Feature | .jar (Java Edition) | .mcpack (Bedrock Edition) | |--------|----------------------|-----------------------------| | Language | Java | C++ (but add-ons use JSON + JavaScript) | | Purpose | Mods / plugins (Paper, Spigot, Fabric, Forge) | Behavior packs / resource packs | | API | Java Edition server/client internals | Minecraft Bedrock’s add-on system (limited) | | Execution | Runs on JVM | Runs inside Bedrock engine | .jar to .mcpack
A .jar can modify redstone, add custom GUIs, change world generation, or add new blocks using Java reflection and NMS. A .mcpack can only add entities, items, blocks, and scripts via and JavaScript (Gametest Framework) — no direct C++ access. , I can tell you whether it’s feasible
The short answer is: They are completely different in code, APIs, and how they run. A .mcpack can only add entities
