chore: use bevy Transform for movement

Replace the custom Position component with Bevy's built-in Transform
for entity movement.

3 files changed, 11 insertions, 23 deletions

diff --git a/plugins/movement/src/lib.rs b/plugins/movement/src/lib.rs
index f7f6ba5..d279d3b 100644
--- a/plugins/movement/src/lib.rs
+++ b/plugins/movement/src/lib.rs
@@ -4,21 +4,23 @@
 //!
 //! # Included
 //!
-//! - **Velocity**: Represents the entity's current momentum, used by systems to calculate the next frame's position
-//! - **Position**: Represents the entity's current location
+//! - **Velocity**: Represents the entity's current momentum, used by systems to calculate the next frame's translation
 //! - **Movement**: A pure marker, used to flag this entity as movable
 //! - **VelocityReducer**: Controls how Velocity is reduced
+//!
+//! Movement is applied to the entity's [`Transform::translation`].
 
 #![deny(missing_docs)]
 
 use bevy::{
     app::{FixedUpdate, Plugin},
     ecs::{query::With, system::Query},
+    transform::components::Transform,
 };
 use ch_macro_rules::import;
 
 // Basic data
-import!(position, velocity, movement);
+import!(velocity, movement);
 
 // Modifiers
 import!(reducer);
@@ -35,13 +37,11 @@ impl Plugin for CHMovementPlugins {
 }
 
 fn update_movement(
-    query: Query<(&mut Position, &mut Velocity, Option<&VelocityReducer>), With<Movement>>,
+    query: Query<(&mut Transform, &mut Velocity, Option<&VelocityReducer>), With<Movement>>,
 ) {
-    for (mut pos, mut velo, reducer) in query {
-        // Add Velocity to Position
-        pos.x += velo.x;
-        pos.y += velo.y;
-        pos.z += velo.z;
+    for (mut transform, mut velo, reducer) in query {
+        // Add Velocity to the entity's translation
+        transform.translation += **velo;
 
         // Apply velocity reduction (default to Lerp(0.25) if no reducer present)
         match reducer {
diff --git a/plugins/movement/src/position.rs b/plugins/movement/src/position.rs
deleted file mode 100644
index c6dc598..0000000
--- a/plugins/movement/src/position.rs
+++ /dev/null
@@ -1,12 +0,0 @@
-use bevy::{
-    ecs::component::Component,
-    math::Vec3,
-    prelude::{Deref, DerefMut},
-};
-
-/// Used to represent the actual position of the current entity
-#[derive(Component, Deref, DerefMut, PartialEq, Default, Clone)]
-pub struct Position {
-    #[deref]
-    pos: Vec3,
-}
diff --git a/plugins/movement/src/reducer.rs b/plugins/movement/src/reducer.rs
index 334d37e..4827dd3 100644
--- a/plugins/movement/src/reducer.rs
+++ b/plugins/movement/src/reducer.rs
@@ -5,10 +5,10 @@ use crate::Velocity;
 /// Controls how Velocity is reduced
 #[derive(Component)]
 pub enum VelocityReducer {
-    /// Sync mode, only applies the current Velocity to Position each time, does not reduce itself
+    /// Sync mode, only applies the current Velocity to translation each time, does not reduce itself
     Sync,
 
-    /// Move mode, directly zeroes out the velocity (momentum is transferred to Position)
+    /// Move mode, directly zeroes out the velocity (momentum is transferred to translation)
     Move,
 
     /// Constant reduction mode, reduces by a fixed amount each time until it becomes Vec3::ZERO