From 47839c03aacad0d484c4111938caaa4d37c9595f Mon Sep 17 00:00:00 2001
From: griffi-gh <prasol258@gmail.com>
Date: Tue, 13 Feb 2024 00:00:01 +0100
Subject: [PATCH] normalize rotation in `update_movement`

---
 kubi/src/fly_controller.rs | 105 +++++++++++++++++++------------------
 1 file changed, 53 insertions(+), 52 deletions(-)

diff --git a/kubi/src/fly_controller.rs b/kubi/src/fly_controller.rs
index 3d241e0..c13f760 100644
--- a/kubi/src/fly_controller.rs
+++ b/kubi/src/fly_controller.rs
@@ -1,52 +1,53 @@
-use glam::{Vec3, Mat4, Quat, EulerRot, Vec2};
-use shipyard::{Component, View, ViewMut, IntoIter, UniqueView, Workload, IntoWorkload, track};
-use std::f32::consts::PI;
-use crate::{transform::Transform, input::Inputs, settings::GameSettings, delta_time::DeltaTime};
-
-#[derive(Component)]
-pub struct FlyController;
-
-pub fn update_controllers() -> Workload {
-  (
-    update_look,
-    update_movement
-  ).into_sequential_workload()
-}
-
-const MAX_PITCH: f32 = PI/2. - 0.05;
-
-fn update_look(
-  controllers: View<FlyController>,
-  mut transforms: ViewMut<Transform, track::All>,
-  inputs: UniqueView<Inputs>,
-  settings: UniqueView<GameSettings>,
-  dt: UniqueView<DeltaTime>,
-) {
-  let look = inputs.look * settings.mouse_sensitivity * dt.0.as_secs_f32();
-  if look == Vec2::ZERO { return }
-  for (_, mut transform) in (&controllers, &mut transforms).iter() {
-    let (scale, mut rotation, translation) = transform.0.to_scale_rotation_translation();
-    let (mut yaw, mut pitch, _roll) = rotation.to_euler(EulerRot::YXZ);
-    yaw -= look.x;
-    pitch -= look.y;
-    pitch = pitch.clamp(-MAX_PITCH, MAX_PITCH);
-    rotation = Quat::from_euler(EulerRot::YXZ, yaw, pitch, 0.).normalize();
-    transform.0 = Mat4::from_scale_rotation_translation(scale, rotation, translation);
-  }
-}
-
-fn update_movement(
-  controllers: View<FlyController>,
-  mut transforms: ViewMut<Transform, track::All>,
-  inputs: UniqueView<Inputs>,
-  dt: UniqueView<DeltaTime>,
-) {
-  if inputs.movement == Vec2::ZERO { return }
-  let movement = inputs.movement * 30. * dt.0.as_secs_f32();
-  for (_, mut transform) in (&controllers, &mut transforms).iter() {
-    let (scale, rotation, mut translation) = transform.0.to_scale_rotation_translation();
-    translation += (rotation * Vec3::NEG_Z).normalize() * movement.y;
-    translation += (rotation * Vec3::X).normalize() * movement.x;
-    transform.0 = Mat4::from_scale_rotation_translation(scale, rotation, translation);
-  }
-}
+use glam::{Vec3, Mat4, Quat, EulerRot, Vec2};
+use shipyard::{Component, View, ViewMut, IntoIter, UniqueView, Workload, IntoWorkload, track};
+use std::f32::consts::PI;
+use crate::{transform::Transform, input::Inputs, settings::GameSettings, delta_time::DeltaTime};
+
+#[derive(Component)]
+pub struct FlyController;
+
+pub fn update_controllers() -> Workload {
+  (
+    update_look,
+    update_movement
+  ).into_sequential_workload()
+}
+
+const MAX_PITCH: f32 = PI/2. - 0.05;
+
+fn update_look(
+  controllers: View<FlyController>,
+  mut transforms: ViewMut<Transform, track::All>,
+  inputs: UniqueView<Inputs>,
+  settings: UniqueView<GameSettings>,
+  dt: UniqueView<DeltaTime>,
+) {
+  let look = inputs.look * settings.mouse_sensitivity * dt.0.as_secs_f32();
+  if look == Vec2::ZERO { return }
+  for (_, mut transform) in (&controllers, &mut transforms).iter() {
+    let (scale, mut rotation, translation) = transform.0.to_scale_rotation_translation();
+    let (mut yaw, mut pitch, _roll) = rotation.to_euler(EulerRot::YXZ);
+    yaw -= look.x;
+    pitch -= look.y;
+    pitch = pitch.clamp(-MAX_PITCH, MAX_PITCH);
+    rotation = Quat::from_euler(EulerRot::YXZ, yaw, pitch, 0.).normalize();
+    transform.0 = Mat4::from_scale_rotation_translation(scale, rotation, translation);
+  }
+}
+
+fn update_movement(
+  controllers: View<FlyController>,
+  mut transforms: ViewMut<Transform, track::All>,
+  inputs: UniqueView<Inputs>,
+  dt: UniqueView<DeltaTime>,
+) {
+  if inputs.movement == Vec2::ZERO { return }
+  let movement = inputs.movement * 30. * dt.0.as_secs_f32();
+  for (_, mut transform) in (&controllers, &mut transforms).iter() {
+    let (scale, rotation, mut translation) = transform.0.to_scale_rotation_translation();
+    let rotation_norm = rotation.normalize();
+    translation += (rotation_norm * Vec3::NEG_Z).normalize() * movement.y;
+    translation += (rotation_norm * Vec3::X).normalize() * movement.x;
+    transform.0 = Mat4::from_scale_rotation_translation(scale, rotation_norm, translation);
+  }
+}