Replace right/up/forward and counter parts with local_x/local_y and l…

…ocal_z (#1476)

crates/bevy_transform/src/components/global_transform.rs

@@ -75,35 +75,23 @@ impl GlobalTransform {
     }
 
     #[inline]
-    pub fn right(&self) -> Vec3 {
+    /// Get the unit vector in the local x direction
+    pub fn local_x(&self) -> Vec3 {
         self.rotation * Vec3::unit_x()
     }
 
     #[inline]
-    pub fn left(&self) -> Vec3 {
-        -self.right()
-    }
-
-    #[inline]
-    pub fn up(&self) -> Vec3 {
+    /// Get the unit vector in the local y direction
+    pub fn local_y(&self) -> Vec3 {
         self.rotation * Vec3::unit_y()
     }
 
     #[inline]
-    pub fn down(&self) -> Vec3 {
-        -self.up()
-    }
-
-    #[inline]
-    pub fn forward(&self) -> Vec3 {
+    /// Get the unit vector in the local z direction
+    pub fn local_z(&self) -> Vec3 {
         self.rotation * Vec3::unit_z()
     }
 
-    #[inline]
-    pub fn backward(&self) -> Vec3 {
-        -self.forward()
-    }
-
     #[inline]
     /// Rotate the transform by the given rotation
     pub fn rotate(&mut self, rotation: Quat) {

crates/bevy_transform/src/components/transform.rs

@@ -75,35 +75,23 @@ impl Transform {
     }
 
     #[inline]
-    pub fn right(&self) -> Vec3 {
+    /// Get the unit vector in the local x direction
+    pub fn local_x(&self) -> Vec3 {
         self.rotation * Vec3::unit_x()
     }
 
     #[inline]
-    pub fn left(&self) -> Vec3 {
-        -self.right()
-    }
-
-    #[inline]
-    pub fn up(&self) -> Vec3 {
+    /// Get the unit vector in the local y direction
+    pub fn local_y(&self) -> Vec3 {
         self.rotation * Vec3::unit_y()
     }
 
     #[inline]
-    pub fn down(&self) -> Vec3 {
-        -self.up()
-    }
-
-    #[inline]
-    pub fn forward(&self) -> Vec3 {
+    /// Get the unit vector in the local z direction
+    pub fn local_z(&self) -> Vec3 {
         self.rotation * Vec3::unit_z()
     }
 
-    #[inline]
-    pub fn backward(&self) -> Vec3 {
-        -self.forward()
-    }
-
     #[inline]
     /// Rotate the transform by the given rotation
     pub fn rotate(&mut self, rotation: Quat) {