Nathan Ward ecb78048cf [ecs] Improve Commands performance (#2332) ... # Objective - Currently `Commands` are quite slow due to the need to allocate for each command and wrap it in a `Box<dyn Command>`. - For example: ```rust fn my_system(mut cmds: Commands) { cmds.spawn().insert(42).insert(3.14); } ``` will have 3 separate `Box<dyn Command>` that need to be allocated and ran. ## Solution - Utilize a specialized data structure keyed `CommandQueueInner`. - The purpose of `CommandQueueInner` is to hold a collection of commands in contiguous memory. - This allows us to store each `Command` type contiguously in memory and quickly iterate through them and apply the `Command::write` trait function to each element.		2021-07-16 19:57:20 +00:00
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src	[ecs] Improve Commands performance (#2332)	2021-07-16 19:57:20 +00:00
Cargo.toml	Update minimal version requirements for dependencies (#2460)	2021-07-15 21:25:49 +00:00