Is cache friendly ECS possible in Lua ?

[inJuly]

Since Lua only has tables, which are associative arrays, the components might never be right next to each other in memory / cache.
Is it possible to implement fast ECS ? If not then what are some alternatives in terms of development ease and modularity.

[zorg]

Here's one: https://github.com/tjakka5/Concord

Didn't look too deep into it, maybe it doesn't use FFI, but it's probably still fast enough.

If one wrote an ECS with LuaJIT's FFI, supporting C types including structs and arrays, LuaJIT *might* be a bit better in terms of memory layout and caching than pure lua solutions... but to be honest, i haven't tested that yet.

[inJuly]

Here's one: https://github.com/tjakka5/Concord

Didn't look too deep into it, maybe it doesn't use FFI, but it's probably still fast enough.

If one wrote an ECS with LuaJIT's FFI, supporting C types including structs and arrays, LuaJIT *might* be a bit better in terms of memory layout and caching than pure lua solutions... but to be honest, i haven't tested that yet.

Thanks, I'll look into it