bevy/examples/app/plugin_group.rs
Carter Anderson 11b41206eb Add upstream bevy_ecs and prepare for custom-shaders merge (#2815)
This updates the `pipelined-rendering` branch to use the latest `bevy_ecs` from `main`. This accomplishes a couple of goals:

1. prepares for upcoming `custom-shaders` branch changes, which were what drove many of the recent bevy_ecs changes on `main`
2. prepares for the soon-to-happen merge of `pipelined-rendering` into `main`. By including bevy_ecs changes now, we make that merge simpler / easier to review. 

I split this up into 3 commits:

1. **add upstream bevy_ecs**: please don't bother reviewing this content. it has already received thorough review on `main` and is a literal copy/paste of the relevant folders (the old folders were deleted so the directories are literally exactly the same as `main`).
2. **support manual buffer application in stages**: this is used to enable the Extract step. we've already reviewed this once on the `pipelined-rendering` branch, but its worth looking at one more time in the new context of (1).
3. **support manual archetype updates in QueryState**: same situation as (2).
2021-09-14 06:14:19 +00:00

51 lines
1.4 KiB
Rust

use bevy::{app::PluginGroupBuilder, prelude::*};
/// PluginGroups are a way to group sets of plugins that should be registered together.
fn main() {
App::new()
// Two PluginGroups that are included with bevy are DefaultPlugins and MinimalPlugins
.add_plugins(DefaultPlugins)
// Adding a plugin group adds all plugins in the group by default
.add_plugins(HelloWorldPlugins)
// You can also modify a PluginGroup (such as disabling plugins) like this:
// .add_plugins_with(HelloWorldPlugins, |group| {
// group
// .disable::<PrintWorldPlugin>()
// .add_before::<PrintHelloPlugin,
// _>(bevy::diagnostic::LogDiagnosticsPlugin::default()) })
.run();
}
/// A group of plugins that produce the "hello world" behavior
pub struct HelloWorldPlugins;
impl PluginGroup for HelloWorldPlugins {
fn build(&mut self, group: &mut PluginGroupBuilder) {
group.add(PrintHelloPlugin).add(PrintWorldPlugin);
}
}
pub struct PrintHelloPlugin;
impl Plugin for PrintHelloPlugin {
fn build(&self, app: &mut App) {
app.add_system(print_hello_system);
}
}
fn print_hello_system() {
info!("hello");
}
pub struct PrintWorldPlugin;
impl Plugin for PrintWorldPlugin {
fn build(&self, app: &mut App) {
app.add_system(print_world_system);
}
}
fn print_world_system() {
info!("world");
}