Add and initialize Rapier.

Cargo.toml

@@ -23,6 +23,7 @@ features = [
 backtrace = "0.3"
 bevy_input_actionmap = { path = "../bevy_input_actionmap" }
 bevy_openal = { path = "../bevy_openal" }
+bevy_rapier2d = "0.10"
 bevy_tts = { path = "../bevy_tts" }
 coord_2d = "0.3"
 crossbeam-channel = "0.5"

src/core.rs

@@ -5,6 +5,7 @@ use std::{
 };
 
 use bevy::{core::FloatOrd, prelude::*, transform::TransformSystem};
+use bevy_rapier2d::prelude::*;
 use derive_more::{Deref, DerefMut};
 use rand::prelude::*;
 
@@ -480,6 +481,10 @@ where
     }
 }
 
+fn setup(core_config: Res<CoreConfig>, mut rapier_config: ResMut<RapierConfiguration>) {
+    rapier_config.scale = core_config.pixels_per_unit as f32;
+}
+
 fn copy_coordinates_to_transform(
     config: Res<CoreConfig>,
     mut query: Query<(&Coordinates, &mut Transform)>,
@@ -509,6 +514,7 @@ impl Plugin for CorePlugin {
             app.insert_resource(CoreConfig::default());
         }
         app.register_type::<Coordinates>()
+            .add_startup_system(setup.system())
             .add_system(copy_coordinates_to_transform.system())
             .add_system_to_stage(
                 CoreStage::PostUpdate,
@@ -526,6 +532,7 @@ impl PluginGroup for CorePlugins {
         group
             .add(crate::bevy_tts::TtsPlugin)
             .add(crate::bevy_openal::OpenAlPlugin)
-            .add(CorePlugin);
+            .add(CorePlugin)
+            .add(RapierPhysicsPlugin::<NoUserData>::default());
     }
 }