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[WIP] Give examples context. #615

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Put code in function.
yuvallanger committed Jul 20, 2019

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scala-steward Scala Steward
commit acb01a03cc2ef2ba54fed8a1692d615f0b03d87a
8 changes: 5 additions & 3 deletions docs/tutorials/src/02_hello_world.md
Original file line number Diff line number Diff line change
@@ -175,9 +175,11 @@ them. To execute the system, you can use `RunNow` like this:
```rust,ignore
use specs::RunNow;
let mut hello_world = HelloWorld;
hello_world.run_now(&world);
world.maintain();
fn run_the_system() {
let mut hello_world = HelloWorld;
hello_world.run_now(&world);
world.maintain();

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Where does it get run from, should be passed in by mut reference or so?

}
```

The `world.maintain()` is not completely necessary here. Calling maintain should be done in general, however.