tinkering around with bevy

Cargo.toml

@@ -6,5 +6,5 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-bevy = "0.7" # make sure this is the latest version
+bevy = "0.8" # make sure this is the latest version
 # vrpn = "0.1.0" # not compatible with 2021

src/main.rs

@@ -15,6 +15,7 @@ fn main() {
     .add_plugins(DefaultPlugins)
     .add_plugin(scene::BuildScenePlugin)
     .add_startup_system(offaxis::camera_setup)
+    .add_system(bevy::window::close_on_esc)
         // .add_system_to_stage(
             // CoreStage::PostUpdate,
             // camera_system::<offaxis::OffAxisProjection>,

src/offaxis.rs

@@ -1,8 +1,8 @@
 use bevy::prelude::*;
 
-use bevy::render::primitives::Frustum;
-use bevy::render::camera::{Camera, Camera2d, CameraProjection, DepthCalculation};
-use bevy::render::view::VisibleEntities;
+// use bevy::render::primitives::Frustum;
+use bevy::render::camera::{Camera, CameraProjection, DepthCalculation};
+// use bevy::render::view::VisibleEntities;
 
 #[derive(Component)]
 pub struct OffAxisProjection {
@@ -13,6 +13,7 @@ pub struct OffAxisProjection {
 
 impl CameraProjection for OffAxisProjection {
     fn get_projection_matrix(&self) -> Mat4 {
+        println!("Here we go!");
         Mat4::orthographic_rh(
             -self.aspect, self.aspect, -1.0, 1.0, self.near, self.far
         )
@@ -47,10 +48,11 @@ pub fn camera_setup(mut commands: Commands) {
 
     let projection = OffAxisProjection::default();
     let camera = Camera {
-        near: projection.near,
-        far: projection.far,
+        // near: projection.near,
+        // far: projection.far,
         ..default()
     };
+    /*
     // position the camera like bevy would do by default for 2D:
     let transform = Transform::from_xyz(0.0, 0.0, projection.far - 0.1);
     // frustum construction code copied from Bevy
@@ -71,7 +73,10 @@ pub fn camera_setup(mut commands: Commands) {
         transform,
         GlobalTransform::default(),
         Camera2d,
-    ));
+    )
+    );
+
+    */
 }
 
 // fn main() {

src/scene.rs

@@ -22,10 +22,18 @@ fn build_scene(mut commands: Commands)  {
     commands.spawn()
     .insert(Person)
     .insert(Position { x: 10.0, y: 10.0 } );
+
+    // camera
+    // commands.spawn_bundle(OffAxisProjection {
+    //     transform: Transform::from_xyz(-2.0, 2.5, 5.0).looking_at(Vec3::ZERO, Vec3::Y),
+    //     ..default()
+    // });
 }
 
 fn print_positions(query : Query<&Position>) {
     for position in query.iter() {
-        println!("position {:?} {:?}", position.x, position.y)
+
+        // println!("position {:?} {:?}", position.x, position.y)
+    
     }
 }