Zarith

Added

• Vehicles: Added physics-based cars and self-balancing motorcycles with suspension, working gears, brakes, handbrakes, and customizable wheel settings. Vehicles support automatic and manual shifting.
• Vehicle controls: Added driving controls, gear-shift keybinds, synchronized wheel visuals, and a HUD showing speed, gear, and RPM.
• Joints: Physics objects can now be connected using welds, ball joints, hinges, ropes, and springs. Connected objects won't collide with each other.
• Link tool: Use /zarith link <mode> to connect two physics objects. Sneak-click to pin an object in place, or use unlink mode to remove its connections.
• New commands: Added /zarith car, /zarith motorcycle, /zarith rope, /zarith cloth, and /zarith assemble for spawning and testing physics contraptions.
• Structural collapse: Structures can now collapse when their supports break or can't handle the weight. Unsupported blocks fall, and overloaded connections can break.
• Block damage: Fast impacts can break blocks, while explosions gradually wear blocks down before breaking them.
• Debris: Broken blocks can leave behind smaller physics fragments that eventually crumble away.
• Improved shading: Physics objects can now cast shading onto the world beneath them.

Changed / Fixed

• Smoother terrain physics: Terrain collisions are now combined into larger sections, reducing the number of physics bodies and preventing objects from catching on seams between blocks.
• Faster terrain processing: Terrain checks are spread across ticks to help manage performance.
• Faster contraption rendering: Large physics contraptions now render much more efficiently.
• Improved storage: Reworked how block data is stored internally to improve efficiency.
• Better friction: Improved friction behavior for physics contraptions.
• Faster terrain lookups: Cached terrain data to avoid repeating the same lookups.
• Improved interactions: Right-clicking a physics contraption now uses the exact position you clicked.

Removed

• Old block data API: Removed the previous per-cell object-based API. Mods using the old API will need to update to the new system.
• Individual terrain collision bodies: Replaced with merged terrain sections for better performance.

Note for mod developers: This update includes breaking API changes. Mods using Zarith's older block storage or terrain collision APIs may need updates to remain compatible.