examples/testbed/Cargo.toml

@@ -13,4 +13,3 @@ lyra-engine = { path = "../../", version = "0.0.1" }
 anyhow = "1.0.75"
 async-std = "1.12.0"
 tracing = "0.1.37"
-fps_counter = "2.0.0"

examples/testbed/src/free_fly_camera.rs

@@ -1,106 +0,0 @@
-use lyra_engine::{
-    ecs::{query::{Res, View}, Component}, game::Game, input::ActionHandler, math::{EulerRot, Quat, Vec3}, plugin::Plugin, scene::CameraComponent, DeltaTime
-};
-
-/* enum FreeFlyCameraActions {
-    MoveForwardBackward,
-    MoveLeftRight,
-    MoveUpDown,
-    LookLeftRight,
-    LookUpDown,
-    LookRoll,
-} */
-
-#[derive(Clone, Component)]
-pub struct FreeFlyCamera {
-    pub speed: f32,
-    pub slow_speed_factor: f32,
-    pub look_speed: f32,
-    pub mouse_sensitivity: f32,
-    pub look_with_keys: bool,
-}
-
-impl Default for FreeFlyCamera {
-    fn default() -> Self {
-        Self {
-            speed: 4.0,
-            slow_speed_factor: 0.25,
-            look_speed: 0.5,
-            mouse_sensitivity: 0.9,
-            look_with_keys: false,
-        }
-    }
-}
-
-impl FreeFlyCamera {
-    #[allow(dead_code)]
-    pub fn new(speed: f32, slow_speed_factor: f32, look_speed: f32, mouse_sensitivity: f32, look_with_keys: bool) -> Self {
-        Self {
-            speed,
-            slow_speed_factor,
-            look_speed,
-            mouse_sensitivity,
-            look_with_keys,
-        }
-    }
-}
-
-pub fn free_fly_camera_controller(delta_time: Res<DeltaTime>, handler: Res<ActionHandler>, view: View<(&mut CameraComponent, &FreeFlyCamera)>) -> anyhow::Result<()> {
-    let delta_time = **delta_time;
-    for (mut cam, fly) in view.into_iter() {
-        let forward = cam.transform.forward();
-        let left = cam.transform.left();
-        let up = Vec3::Y;
-
-        let move_y = handler.get_axis_modifier("MoveUpDown").unwrap_or(0.0);
-        let move_x = handler.get_axis_modifier("MoveLeftRight").unwrap_or(0.0);
-        let move_z = handler.get_axis_modifier("MoveForwardBackward").unwrap_or(0.0);
-
-        let mut velocity = Vec3::ZERO;
-        velocity += move_y * up;
-        velocity += move_x * left;
-        velocity += move_z * forward;
-
-        if velocity != Vec3::ZERO {
-            cam.transform.translation += velocity.normalize() * fly.speed * delta_time; // TODO: speeding up
-        }
-
-        let motion_x = handler.get_axis_modifier("LookLeftRight").unwrap_or(0.0);
-        let motion_y = handler.get_axis_modifier("LookUpDown").unwrap_or(0.0);
-        let motion_z = handler.get_axis_modifier("LookRoll").unwrap_or(0.0);
-        
-        let mut camera_rot = Vec3::ZERO;
-        camera_rot.y -= motion_x * fly.mouse_sensitivity;
-        camera_rot.x -= motion_y * fly.mouse_sensitivity;
-        camera_rot.z -= motion_z * fly.mouse_sensitivity;
-
-        if camera_rot != Vec3::ZERO {
-            let look_velocity = camera_rot * fly.look_speed * delta_time;
-
-            let (mut y, mut x, _) = cam.transform.rotation.to_euler(EulerRot::YXZ);
-            x += look_velocity.x;
-            y += look_velocity.y;
-            x = x.clamp(-1.54, 1.54);
-
-            // rotation is not commutative, keep this order to avoid unintended roll
-            cam.transform.rotation = Quat::from_axis_angle(Vec3::Y, y)
-                * Quat::from_axis_angle(Vec3::X, x);
-        }
-
-        if handler.was_action_just_pressed("Debug") {
-            cam.debug = !cam.debug;
-        }
-    }
-
-    Ok(())
-}
-
-/// A plugin that adds the free fly camera controller system to the world. It is expected that
-/// there is a [`FreeFlyCamera`] in the world, if there isn't, the camera would not move.
-pub struct FreeFlyCameraPlugin;
-
-impl Plugin for FreeFlyCameraPlugin {
-    fn setup(&self, game: &mut Game) {
-        game.with_system("free_fly_camera_system", free_fly_camera_controller, &[]);
-    }
-}

examples/testbed/src/main.rs

@@ -1,29 +1,8 @@
-use std::{cell::Ref, ptr::NonNull};
+use std::ptr::NonNull;
 
-use lyra_engine::{assets::gltf::Gltf, change_tracker::Ct, ecs::{query::{QueryBorrow, ViewState}, system::{BatchedSystem, Criteria, CriteriaSchedule, IntoSystem}, Component, World}, game::Game, input::{Action, ActionHandler, ActionKind, ActionMapping, ActionMappingId, ActionSource, InputActionPlugin, KeyCode, LayoutId, MouseAxis, MouseInput}, math::{self, Quat, Transform, Vec3}, render::{light::{directional::DirectionalLight, PointLight, SpotLight}, window::{CursorGrabMode, WindowOptions}}, scene::CameraComponent, DeltaTime};
+use lyra_engine::{assets::gltf::Gltf, change_tracker::Ct, ecs::{query::{QueryBorrow, Res, View, ViewState}, system::{BatchedSystem, Criteria, CriteriaSchedule, IntoSystem}, Component, World}, game::Game, input::{Action, ActionHandler, ActionKind, ActionMapping, ActionMappingId, ActionSource, InputActionPlugin, KeyCode, LayoutId, MouseAxis, MouseInput}, math::{self, Quat, Transform, Vec3}, render::{light::{directional::DirectionalLight, PointLight, SpotLight}, window::{CursorGrabMode, WindowOptions}}, scene::{CameraComponent, FreeFlyCamera, FreeFlyCameraPlugin, ACTLBL_LOOK_LEFT_RIGHT, ACTLBL_LOOK_ROLL, ACTLBL_LOOK_UP_DOWN, ACTLBL_MOVE_FORWARD_BACKWARD, ACTLBL_MOVE_LEFT_RIGHT, ACTLBL_MOVE_UP_DOWN}, DeltaTime};
 use lyra_engine::assets::ResourceManager;
 
-mod free_fly_camera;
-use free_fly_camera::{FreeFlyCameraPlugin, FreeFlyCamera};
-
-#[derive(Clone, Copy, Hash, Debug)]
-pub enum ActionLabel {
-    MoveForwardBackward,
-    MoveLeftRight,
-    MoveUpDown,
-    LookLeftRight,
-    LookUpDown,
-    LookRoll,
-}
-
-const ACTLBL_MOVE_UP_DOWN: &str = "MoveUpDown";
-const ACTLBL_MOVE_LEFT_RIGHT: &str = "MoveLeftRight";
-const ACTLBL_MOVE_FORWARD_BACKWARD: &str = "MoveForwardBackward";
-const ACTLBL_LOOK_LEFT_RIGHT: &str = "LookLeftRight";
-const ACTLBL_LOOK_UP_DOWN: &str = "LookUpDown";
-const ACTLBL_LOOK_ROLL: &str = "LookRoll";
-const ACTLBL_DEBUG: &str = "Debug";
-
 struct FixedTimestep {
     max_tps: u32,
     fixed_time: f32,
@@ -254,52 +233,18 @@ async fn main() {
         Ok(())
     };
 
-    #[allow(unused_variables)]
+    let camera_debug_plugin = move |game: &mut Game| {
-    let fps_system = |world: &mut World| -> anyhow::Result<()> {
+        let sys = |handler: Res<ActionHandler>, view: View<&mut CameraComponent>| -> anyhow::Result<()> {
-        let mut counter = world.get_resource_mut::<fps_counter::FPSCounter>();
+            if handler.was_action_just_pressed("Debug") {
-
+                for mut cam in view.into_iter() {
-        let fps = counter.tick();
+                    cam.debug = !cam.debug;
-
-        println!("FPS: {fps}");
-
-        Ok(())
-    };
-    let _fps_plugin = move |game: &mut Game| {
-        let world = game.world_mut();
-        world.add_resource(fps_counter::FPSCounter::new());
-    };
-
-    let spin_system = |world: &mut World| -> anyhow::Result<()> {
-        const SPEED: f32 = 4.0;
-        let delta_time = **world.get_resource::<DeltaTime>();
-
-        for (mut transform, _) in world.view_iter::<(&mut Transform, &CubeFlag)>() {
-            let t = &mut transform;
-            t.rotate_y(math::Angle::Degrees(SPEED * delta_time));
                 }
-
-        for (mut transform, _s) in world.view_iter::<(&mut Transform, &mut SpotLight)>() {
-            let t = &mut transform;
-            t.rotate_x(math::Angle::Degrees(SPEED * delta_time));
             }
 
             Ok(())
         };
 
-    let jiggle_plugin = move |game: &mut Game| {
+        game.with_system("camera_debug_trigger", sys, &[]);
-        /* game.world_mut().add_resource(TpsAccumulator(0.0));
-        
-        let mut sys = BatchedSystem::new();
-        sys.with_criteria(FixedTimestep::new(45));
-        sys.with_system(spin_system.into_system()); */
-
-        /* let mut camera = CameraComponent::new_3d();
-        camera.transform.translation += math::Vec3::new(0.0, 0.0, 5.5);
-        world.spawn(( camera, FreeFlyCamera::default() )); */
-        //sys.with_system(fps_system);
-
-        //game.with_system("fixed", sys, &[]);
-        //fps_plugin(game);
     };
 
     let action_handler_plugin = |game: &mut Game| {
@@ -312,7 +257,7 @@ async fn main() {
             .add_action(ACTLBL_LOOK_LEFT_RIGHT, Action::new(ActionKind::Axis))
             .add_action(ACTLBL_LOOK_UP_DOWN, Action::new(ActionKind::Axis))
             .add_action(ACTLBL_LOOK_ROLL, Action::new(ActionKind::Axis))
-            .add_action(ACTLBL_DEBUG, Action::new(ActionKind::Button))
+            .add_action("Debug", Action::new(ActionKind::Button))
 
             .add_mapping(ActionMapping::builder(LayoutId::from(0), ActionMappingId::from(0))
                 .bind(ACTLBL_MOVE_FORWARD_BACKWARD, &[
@@ -343,7 +288,7 @@ async fn main() {
                     ActionSource::Keyboard(KeyCode::E).into_binding_modifier(-1.0),
                     ActionSource::Keyboard(KeyCode::Q).into_binding_modifier(1.0),
                 ])
-                .bind(ACTLBL_DEBUG, &[
+                .bind("Debug", &[
                     ActionSource::Keyboard(KeyCode::B).into_binding(),
                 ])
                 .finish()
@@ -375,7 +320,7 @@ async fn main() {
         .with_plugin(action_handler_plugin)
         //.with_plugin(script_test_plugin)
         //.with_plugin(fps_plugin)
-        .with_plugin(jiggle_plugin)
+        .with_plugin(camera_debug_plugin)
         .with_plugin(FreeFlyCameraPlugin)
         .run().await;
 }

lyra-game/src/scene/free_fly_camera.rs

@@ -1,28 +1,103 @@
-use lyra_ecs::Component;
+use glam::{EulerRot, Quat, Vec3};
+use lyra_ecs::{query::{Res, View}, Component};
 
-use crate::{math::{Angle, Transform}, render::camera::CameraProjectionMode};
+use crate::{game::Game, input::ActionHandler, plugin::Plugin, DeltaTime};
+
+use super::CameraComponent;
+
+pub const ACTLBL_MOVE_UP_DOWN: &str = "MoveUpDown";
+pub const ACTLBL_MOVE_LEFT_RIGHT: &str = "MoveLeftRight";
+pub const ACTLBL_MOVE_FORWARD_BACKWARD: &str = "MoveForwardBackward";
+pub const ACTLBL_LOOK_LEFT_RIGHT: &str = "LookLeftRight";
+pub const ACTLBL_LOOK_UP_DOWN: &str = "LookUpDown";
+pub const ACTLBL_LOOK_ROLL: &str = "LookRoll";
 
 #[derive(Clone, Component)]
 pub struct FreeFlyCamera {
-    pub transform: Transform,
-    pub fov: Angle,
-    pub mode: CameraProjectionMode,
     pub speed: f32,
+    pub slow_speed_factor: f32,
+    pub look_speed: f32,
+    pub mouse_sensitivity: f32,
+    pub look_with_keys: bool,
 }
 
 impl Default for FreeFlyCamera {
     fn default() -> Self {
-        Self::new()
+        Self {
+            speed: 4.0,
+            slow_speed_factor: 0.25,
+            look_speed: 0.5,
+            mouse_sensitivity: 0.9,
+            look_with_keys: false,
+        }
     }
 }
 
 impl FreeFlyCamera {
-    pub fn new() -> Self {
+    #[allow(dead_code)]
+    pub fn new(speed: f32, slow_speed_factor: f32, look_speed: f32, mouse_sensitivity: f32, look_with_keys: bool) -> Self {
         Self {
-            transform: Transform::default(),
+            speed,
-            fov: Angle::Degrees(45.0),
+            slow_speed_factor,
-            mode: CameraProjectionMode::Perspective,
+            look_speed,
-            speed: 1.5,
+            mouse_sensitivity,
+            look_with_keys,
         }
     }
 }
+
+pub fn free_fly_camera_controller(delta_time: Res<DeltaTime>, handler: Res<ActionHandler>, view: View<(&mut CameraComponent, &FreeFlyCamera)>) -> anyhow::Result<()> {
+    let delta_time = **delta_time;
+    for (mut cam, fly) in view.into_iter() {
+        let forward = cam.transform.forward();
+        let left = cam.transform.left();
+        let up = Vec3::Y;
+
+        let move_y = handler.get_axis_modifier(ACTLBL_MOVE_UP_DOWN).unwrap_or(0.0);
+        let move_x = handler.get_axis_modifier(ACTLBL_MOVE_LEFT_RIGHT).unwrap_or(0.0);
+        let move_z = handler.get_axis_modifier(ACTLBL_MOVE_FORWARD_BACKWARD).unwrap_or(0.0);
+
+        let mut velocity = Vec3::ZERO;
+        velocity += move_y * up;
+        velocity += move_x * left;
+        velocity += move_z * forward;
+
+        if velocity != Vec3::ZERO {
+            cam.transform.translation += velocity.normalize() * fly.speed * delta_time; // TODO: speeding up
+        }
+
+        let motion_x = handler.get_axis_modifier(ACTLBL_LOOK_LEFT_RIGHT).unwrap_or(0.0);
+        let motion_y = handler.get_axis_modifier(ACTLBL_LOOK_UP_DOWN).unwrap_or(0.0);
+        let motion_z = handler.get_axis_modifier(ACTLBL_LOOK_ROLL).unwrap_or(0.0);
+        
+        let mut camera_rot = Vec3::ZERO;
+        camera_rot.y -= motion_x * fly.mouse_sensitivity;
+        camera_rot.x -= motion_y * fly.mouse_sensitivity;
+        camera_rot.z -= motion_z * fly.mouse_sensitivity;
+
+        if camera_rot != Vec3::ZERO {
+            let look_velocity = camera_rot * fly.look_speed * delta_time;
+
+            let (mut y, mut x, _) = cam.transform.rotation.to_euler(EulerRot::YXZ);
+            x += look_velocity.x;
+            y += look_velocity.y;
+            x = x.clamp(-1.54, 1.54);
+
+            // rotation is not commutative, keep this order to avoid unintended roll
+            cam.transform.rotation = Quat::from_axis_angle(Vec3::Y, y)
+                * Quat::from_axis_angle(Vec3::X, x);
+        }
+    }
+
+    Ok(())
+}
+
+/// A plugin that adds the free fly camera controller system to the world. It is expected that
+/// there is a [`FreeFlyCamera`] in the world, if there isn't, the camera would not move.
+pub struct FreeFlyCameraPlugin;
+
+impl Plugin for FreeFlyCameraPlugin {
+    fn setup(&self, game: &mut Game) {
+        game.with_system("free_fly_camera_system", free_fly_camera_controller, &[]);
+    }
+}