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some random typo fixes

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Guanqun Lu 2019-08-23 00:54:29 +08:00
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@ -18,15 +18,15 @@ revision counters from Glimmer, instead), I still like the name.
You may have noticed that Salsa "feels" a lot like an ECS in some
ways. That's true -- Salsa's queries are a bit like *components* (and
the keys to the queries are a bit like *entitites*). But there is one
the keys to the queries are a bit like *entities*). But there is one
big difference: **ECS is -- at its heart -- a mutable system**. You
can get or set a component of some entity whenever you like. In
contrast, salsa's queries define **define "derived values" via pure
contrast, salsa's queries **define "derived values" via pure
computations**.
Partly as a consequence, ECS doesn't handle incremental updates for
you. When you update some component of some entity, you have to ensure
that other entities' components are upated appropriately.
that other entities' components are updated appropriately.
Finally, ECS offers interesting metadata and "aspect-like" facilities,
such as iterating over all entities that share certain components.