bevy::app

Struct PluginGroupBuilder

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pub struct PluginGroupBuilder { /* private fields */ }
Expand description

Facilitates the creation and configuration of a PluginGroup.

Provides a build ordering to ensure that Plugins which produce/require a Resource are built before/after dependent/depending Plugins. Plugins inside the group can be disabled, enabled or reordered.

Implementations§

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impl PluginGroupBuilder

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pub fn start<PG>() -> PluginGroupBuilder
where PG: PluginGroup,

Start a new builder for the PluginGroup.

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pub fn set<T>(self, plugin: T) -> PluginGroupBuilder
where T: Plugin,

Sets the value of the given Plugin, if it exists.

§Panics

Panics if the Plugin does not exist.

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pub fn add<T>(self, plugin: T) -> PluginGroupBuilder
where T: Plugin,

Adds the plugin Plugin at the end of this PluginGroupBuilder. If the plugin was already in the group, it is removed from its previous place.

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pub fn add_group(self, group: impl PluginGroup) -> PluginGroupBuilder

Adds a PluginGroup at the end of this PluginGroupBuilder. If the plugin was already in the group, it is removed from its previous place.

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pub fn add_before<Target>(self, plugin: impl Plugin) -> PluginGroupBuilder
where Target: Plugin,

Adds a Plugin in this PluginGroupBuilder before the plugin of type Target. If the plugin was already the group, it is removed from its previous place. There must be a plugin of type Target in the group or it will panic.

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pub fn add_after<Target>(self, plugin: impl Plugin) -> PluginGroupBuilder
where Target: Plugin,

Adds a Plugin in this PluginGroupBuilder after the plugin of type Target. If the plugin was already the group, it is removed from its previous place. There must be a plugin of type Target in the group or it will panic.

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pub fn enable<T>(self) -> PluginGroupBuilder
where T: Plugin,

Enables a Plugin.

Plugins within a PluginGroup are enabled by default. This function is used to opt back in to a Plugin after disabling it. If there are no plugins of type T in this group, it will panic.

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pub fn disable<T>(self) -> PluginGroupBuilder
where T: Plugin,

Disables a Plugin, preventing it from being added to the App with the rest of the PluginGroup. The disabled Plugin keeps its place in the PluginGroup, so it can still be used for ordering with add_before or add_after, or it can be re-enabled. If there are no plugins of type T in this group, it will panic.

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pub fn finish(self, app: &mut App)

Consumes the PluginGroupBuilder and builds the contained Plugins in the order specified.

§Panics

Panics if one of the plugin in the group was already added to the application.

Trait Implementations§

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impl PluginGroup for PluginGroupBuilder

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fn build(self) -> PluginGroupBuilder

Configures the Plugins that are to be added.
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fn name() -> String

Configures a name for the PluginGroup which is primarily used for debugging.
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fn set<T>(self, plugin: T) -> PluginGroupBuilder
where T: Plugin,

Sets the value of the given Plugin, if it exists

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impl<Marker, T> Plugins<Marker> for T
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