Toggleable Locomotive Physics & Fuel Scaling for Minecarts (Via /gamerule)

Instead of abandoning the Furnace Minecart due to lag, Mojang should upgrade the physics module to support toggleable train mechanics. By linking this to a server-side toggle, advanced networks can be safely implemented for capable hardware. 1. Modular Software Upgrade Minecraft’s engine is highly capable. Just as Render Dragon upgraded graphics without a whole new software, a minor upgrade can be made to the entity physics module. 2. Grouped Entity State (The Entity Linker) Instead of calculating minecarts independently (which causes glitching and lag), the software should group coupled carts. The server will process the train as a single compound object with one velocity calculation, drastically reducing multiplayer CPU workload. 3. Fuel-Based Speed Scaling Trains should use a Fuel Tier mechanic in Survival: - Coal/Charcoal: Standard speed. - Blaze Rods/Lava Buckets/Coal Blocks: Higher speed limits and massive torque for longer trains. 4. Smart Ticking Vector (No Lag) To avoid heavy player-style chunk loading, the locomotive can use a linear Ticking Vector. The software only force-loads a 1-chunk-wide path directly in front of the train's direction, and instantly unloads it after it passes. 5. Toggle Controls Server owners can manage the hardware risk using new game rules: - /gamerule allowVehicleChunkLoading [true/false] - /gamerule maxTrainLength [integer]