Chunk access through Modular transform arithmetic vs seperate modular indexing.

[pebble225]

Chunks are going to be accessed around the chunk where the camera is positioned. Should those chunks be accessed by using integer arithmetic from the chunk index that is found by the camera or should multiple modular transforms be derived and all of those chunks are calculated individually?

Integer indexing pros

• The arithmetic is simple, fast, and compact.
• It avoids potential rounding errors from doubles.

  Integer indexing cons

• The algorithm is wrapping without "supervision" of the modular transform configuration.

  Modular indexing pros

• The indices are directly supervised by the modular transform configuration, ensuring that no invalid coordinates are returned.

  Modular indexing cons

• Each index is slower to calculate, first requiring a special translation and then being converted to a chunk index.
• There is a small chance of a rounding error where a value close to the border of a chunk while adding or subtracting a value could potentially skip that chunk.

[pebble225]

If there is a small chance of a rounding error, does it really ensure that a valid coordinate is returned? It sounds like a contradiction.

[pebble225]

I'm more on the side of modular indexing because it interfaces with code that I already established to deal with the world modularity.