Improve camera control to get a look at the scene

engine/src/assets/asset_manager.rs

@@ -41,10 +41,9 @@ impl AssetManager {
 
     #[inline]
     fn find_gltf_file(&self, name: &str) -> Option<&AssetPath> {
-        match self.gltf_file_map.get(name) {
-            Some(file) => Some(file),
-            None => self.glb_file_map.get(name),
-        }
+        self.gltf_file_map
+            .get(name)
+            .or_else(|| self.glb_file_map.get(name))
     }
 
     pub fn insert_cached_assets(&self, cache: &AssetCache) -> Result<()> {

engine/src/scene/content/components/free_space_control.rs

@@ -134,8 +134,13 @@ impl FreeSpaceControl {
     }
 
     pub fn update(&mut self, now: Duration) {
-        let diff = match self.last_update {
-            Some(last_update) => now - last_update,
+        let diff = match &mut self.last_update {
+            Some(last_update) => {
+                let diff = now - *last_update;
+                *last_update = now;
+
+                diff
+            }
             None => {
                 self.last_update = Some(now);
                 return;

engine/src/scene/general/free_camera_control.rs

@@ -1,3 +1,5 @@
+use std::time::Duration;
+
 use crate::prelude::{cgmath::*, *};
 use anyhow::Result;
 use context::prelude::cgmath::num_traits::clamp;
@@ -29,12 +31,16 @@ pub struct FreeCameraControl {
 
     mouse_position: (u32, u32),
 
+    velocity: Vector3<f32>,
+
     hold_info: Option<HoldInfo>,
+    last_update: Option<Duration>,
 }
 
 impl FreeCameraControl {
     const SCALE: f32 = 0.3;
     const DEFAULT_DIR: Vector3<f32> = vec3(0.0, 1.0, 0.0);
+    const SPEED: f32 = 2.0;
 
     pub fn new(view: &mut View) -> Result<Self> {
         view.camera_mut().look_at(false);
@@ -48,20 +54,50 @@ impl FreeCameraControl {
 
             mouse_position: (0, 0),
 
+            velocity: Vector3::zero(),
+
             hold_info: None,
+
+            last_update: None,
         })
     }
 
-    pub fn roll(&mut self, _view: &mut View) -> Result<()> {
-        todo!()
+    pub fn forward_back(&mut self, factor: f32) {
+        self.velocity.y += factor;
     }
 
-    pub fn pitch(&mut self, _view: &mut View) -> Result<()> {
-        todo!()
+    pub fn left_right(&mut self, factor: f32) {
+        self.velocity.x += factor;
     }
 
-    pub fn yaw(&mut self, _view: &mut View) -> Result<()> {
-        todo!()
+    pub fn up_down(&mut self, factor: f32) {
+        self.velocity.z += factor;
+    }
+
+    pub fn update(&mut self, now: Duration, view: &mut View) -> Result<()> {
+        let diff = match &mut self.last_update {
+            Some(last_update) => {
+                let diff = now - *last_update;
+                *last_update = now;
+
+                diff
+            }
+            None => {
+                self.last_update = Some(now);
+                return Ok(());
+            }
+        };
+
+        let current_center = view.camera().center();
+        let new_center = current_center
+            + diff.as_secs_f32()
+                * Self::SPEED
+                * Matrix3::from_angle_z(self.yaw)
+                * Matrix3::from_angle_x(self.roll)
+                * self.velocity;
+
+        view.camera_mut().set_center(new_center);
+        view.update_buffer()
     }
 
     pub fn mouse_down(&mut self) {
@@ -88,18 +124,6 @@ impl FreeCameraControl {
         Ok(())
     }
 
-    pub fn forward_back(&mut self, _view: &mut View) -> Result<()> {
-        todo!()
-    }
-
-    pub fn left_right(&mut self, _view: &mut View) -> Result<()> {
-        todo!()
-    }
-
-    pub fn up_down(&mut self, _view: &mut View) -> Result<()> {
-        todo!()
-    }
-
     fn update_camera(&self, view: &mut View) -> Result<()> {
         view.camera_mut().set_eye_dir(
             Matrix3::from_angle_z(self.yaw) * Matrix3::from_angle_x(self.roll) * Self::DEFAULT_DIR,

examples/free_space/src/game.rs

@@ -4,7 +4,7 @@ use anyhow::Result;
 
 use ecs::*;
 use engine::prelude::{
-    cgmath::{Vector3, Vector4},
+    cgmath::{Vector3, Vector4, vec4},
     *,
 };
 
@@ -85,7 +85,14 @@ impl InputSettings {
 pub struct Game;
 
 impl Game {
-    pub fn update(&mut self, _world: &mut World) -> Result<()> {
+    pub fn update(&mut self, world: &mut World) -> Result<()> {
+        let now = world.now();
+        let mut resources = world.resources.multi_mut();
+        let scene = resources.get::<Scene>();
+        let camera_control = resources.get::<FreeCameraControl>();
+
+        camera_control.update(now, scene.view_mut())?;
+
         Ok(())
     }
 
@@ -94,6 +101,46 @@ impl Game {
         let (fighter_object, resources) = world.entity_resources(player.0)?;
 
         match event {
+            EngineEvent::MouseButtonDown(MouseButton::Left) => {
+                let camera_control = resources.get_mut::<FreeCameraControl>();
+                camera_control.mouse_down();
+            }
+            EngineEvent::MouseButtonUp(MouseButton::Left) => {
+                let camera_control = resources.get_mut::<FreeCameraControl>();
+                camera_control.mouse_release();
+            }
+            EngineEvent::MouseMotion(x, y) => {
+                let mut resources = resources.multi_mut();
+                let scene = resources.get::<Scene>();
+                let camera_control = resources.get::<FreeCameraControl>();
+
+                camera_control.mouse_move(x, y, scene.view_mut())?;
+            }
+            EngineEvent::KeyDown(key) => {
+                let camera_control = resources.get_mut::<FreeCameraControl>();
+
+                match key {
+                    Keycode::W => camera_control.forward_back(1.0),
+                    Keycode::A => camera_control.left_right(-1.0),
+                    Keycode::S => camera_control.forward_back(-1.0),
+                    Keycode::D => camera_control.left_right(1.0),
+
+                    _ => (),
+                }
+            }
+            EngineEvent::KeyUp(key) => {
+                let camera_control = resources.get_mut::<FreeCameraControl>();
+
+                match key {
+                    Keycode::W => camera_control.forward_back(-1.0),
+                    Keycode::A => camera_control.left_right(1.0),
+                    Keycode::S => camera_control.forward_back(1.0),
+                    Keycode::D => camera_control.left_right(-1.0),
+
+                    _ => (),
+                }
+            }
+
             EngineEvent::JoystickAxis(joystick, axis_index, value) => {
                 let normalized = value as f32 * (i16::MAX as f32).recip();
                 let input_settings = resources.get::<InputSettings>();
@@ -132,13 +179,13 @@ impl Game {
             EmptyFilter,
         )?;
 
-        world_builder.add_update("camera_position", 1_000, Self::camera_update, EmptyFilter)?;
+        // world_builder.add_update("camera_position", 1_000, Self::camera_update, EmptyFilter)?;
 
         Ok(())
     }
 
     pub fn setup_scene(world: &mut World) -> Result<()> {
-        let mut fighter = AssetHandler::create(world).create_entity("fighter")?;
+        let mut fighter = AssetHandler::create(world).create_entity("craft_cargoA")?;
         fighter.insert_component(FreeSpaceControl::new(FreeSpaceControlSettings::default()));
 
         let player = PlayerEntity(world.add_entity(fighter)?);
@@ -166,13 +213,15 @@ impl Game {
         _entity: Entity,
         control: &mut FreeSpaceControl,
     ) -> Result<()> {
+        const DEFAULT_CENTER: Vector4<f32> = vec4(0.0, 0.0, 0.0, 1.0);
+
         let scene = world.resources.get_mut::<Scene>();
         let view = scene.view_mut();
 
         view.camera_mut()
-            .set_center((control.translation() * Vector4::unit_w()).truncate());
+            .set_center((control.translation() * DEFAULT_CENTER).truncate());
         view.camera_mut()
-            .set_eye_dir(control.rotation() * Vector3::unit_y());
+            .set_eye_dir(control.rotation() * Vector3::unit_x());
 
         view.update_buffer()
     }

examples/free_space/src/main.rs

@@ -14,13 +14,17 @@ use skybox::SkyBox;
 fn main() -> Result<()> {
     let mut world_builder = World::builder();
 
-    Engine::new::<GameState>(EngineCreateInfo::default(), &mut world_builder)?;
+    let mut engine_ci = EngineCreateInfo::default();
+    engine_ci.resource_base_path = "/home/michaelh/Sync/space_game/".to_string();
+    engine_ci.asset_directories.gltf_file_directory = "objects".into();
+    engine_ci.raytracing_info.recursion_depth = 30;
+
+    Engine::new::<GameState>(engine_ci, &mut world_builder)?;
 
     world_builder.add_system(GameState::update);
     world_builder.resources.insert(GameState::default());
 
-    // let dir = Path::new("C:/Users/M.Huebner/Downloads/skybox");
-    let dir = Path::new("/home/michaelh/Sync/skybox");
+    let dir = Path::new("/home/michaelh/Sync/space_game/skybox");
     SkyBox::new(
         &mut world_builder,
         [