The Fluid Update (almost)

This update brings a long-requested feature: fluid support. Or, at least part of it. Mid-replay fluid updates are still not working and have been disabled. They also don't use animated textures yet.

To export fluids, simply ensure "Fluid Mode" is set to Static on the export screen.

Changes

• Wrote fluid system.

  • Flood fill algorithm for generating fluid domains.

  • Mesh comparison algorithm to support fluid system.

• Cleaned up block updating code.

• Created mod icon.

• Blender: Fixed an issue arising when a block was modified twice during a replay.