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View Code? Open in Web Editor NEWA concise game engine written in Rust.
A concise game engine written in Rust.
For example, in src/core/physicssystem.rs we can see we need to ask the entities for all those with two given flags (C_MASS | C_POSITION)
. At the moment, this naively runs this:
self.entities.iter().filter(|x| x.has_flags(flags)).collect::<Vec<&Entity>>()
This gets called every time process_physics()
does, as well as every other time a non-singular component processor is called, which is a potentially a lot. Instead, Entities (or some other location) should have a specific list called entities_mass_position
or similar (maybe a Map<ComponentFlag, Vec<Entity>>
) which whenever someone registers to both a Mass and Position component, tracks the id.
process_physics
can then ask for all Entity
s from this list directly rather than having to prefilter every frame.
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