27 lines
890 B
Rust
27 lines
890 B
Rust
use crate::AppBuilder;
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use libloading::{Library, Symbol};
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use std::any::Any;
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/// A collection of Bevy App logic and configuration
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///
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/// Plugins use [AppBuilder] to configure an [App](crate::App). When an [App](crate::App) registers a plugin, the plugin's [Plugin::build] function is run.
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pub trait Plugin: Any + Send + Sync {
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fn build(&self, app: &mut AppBuilder);
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fn name(&self) -> &str {
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std::any::type_name::<Self>()
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}
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}
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pub type CreatePlugin = unsafe fn() -> *mut dyn Plugin;
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/// Dynamically links a plugin a the given path. The plugin must export the [CreatePlugin] function.
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pub fn dynamically_load_plugin(path: &str) -> (Library, Box<dyn Plugin>) {
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let lib = Library::new(path).unwrap();
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unsafe {
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let func: Symbol<CreatePlugin> = lib.get(b"_create_plugin").unwrap();
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let plugin = Box::from_raw(func());
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(lib, plugin)
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}
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}
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