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32 lines
1.0 KiB
Markdown
32 lines
1.0 KiB
Markdown
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# Screen Director
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Orchistrates `Screen`s.
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The `Screen Director` lets you define "States"(`Screen`s) which activate/deactivate `MM::Service`s on Entering and Leaving the `Screen`.
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# Usage
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The current implementation is very open and does not really use encapsulation ...
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## Adding `Screen`s
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Due to the open nature of this implementation, one does access members directly:
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```
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auto& my_screen = screen_director.screens["my_screen"];
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// filling in start_disable, start_enable, start_provide, end_disable and end_enable
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// and optionally start_fn and end_fn which are called upon entering and leaving the screen.
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my_screen.start_enable.push_back(engine.type<MyService>());
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// [...]
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```
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## Changing to a Screen
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Changing to a `Screen` can either be done on call with `.changeScreenTo(engine, "my_screen_id")` or qued via `.queueChangeScreenTo("my_screen")`. The former should only be used when the `Engine` is not running or in a `fixedDeferUpdate`.
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## Service Enablement
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Enabling the ScreenDirector causes a queued `Screen` to be started.
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