screeps-clockwork

WASM Implementation

We are using wasm-bindgen to create the WASM and a JS shim (packages/wasm). There are a few things we tweak to improve performance (such as passing in the __packedPos instead of the whole RoomPosition), so this is further wrapped in a Typescript library (packages/screeps-clockwork) which wraps and re-exports the WASM functionality.

• Copying data across the WASM boundary adds up, so we must be thoughtful about when and how we copy data back and forth.
• Javascript can’t garbage-collect our Rust objects, so we need to clean them up explicitly.

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