From 7e368e0b782161813890722d3768a11852d5e391 Mon Sep 17 00:00:00 2001
From: RedlineTriad <39059512+RedlineTriad@users.noreply.github.com>
Date: Mon, 25 Jan 2021 04:05:30 +0000
Subject: [PATCH] Add more transform relative vectors (#1300)

* Add more transform relative vectors (#1298)

* Add inverse of relative directions (#1298)
---
 .../src/components/global_transform.rs        | 25 +++++++++++++++++++
 .../src/components/transform.rs               | 25 +++++++++++++++++++
 2 files changed, 50 insertions(+)

diff --git a/crates/bevy_transform/src/components/global_transform.rs b/crates/bevy_transform/src/components/global_transform.rs
index e829cd8be3..d964442ca2 100644
--- a/crates/bevy_transform/src/components/global_transform.rs
+++ b/crates/bevy_transform/src/components/global_transform.rs
@@ -74,11 +74,36 @@ impl GlobalTransform {
         Mat4::from_scale_rotation_translation(self.scale, self.rotation, self.translation)
     }
 
+    #[inline]
+    pub fn right(&self) -> Vec3 {
+        self.rotation * Vec3::unit_x()
+    }
+
+    #[inline]
+    pub fn left(&self) -> Vec3 {
+        -self.right()
+    }
+
+    #[inline]
+    pub fn up(&self) -> Vec3 {
+        self.rotation * Vec3::unit_y()
+    }
+
+    #[inline]
+    pub fn down(&self) -> Vec3 {
+        -self.up()
+    }
+
     #[inline]
     pub fn forward(&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) {
diff --git a/crates/bevy_transform/src/components/transform.rs b/crates/bevy_transform/src/components/transform.rs
index 6b370e5c16..ce8be11b0c 100644
--- a/crates/bevy_transform/src/components/transform.rs
+++ b/crates/bevy_transform/src/components/transform.rs
@@ -74,11 +74,36 @@ impl Transform {
         Mat4::from_scale_rotation_translation(self.scale, self.rotation, self.translation)
     }
 
+    #[inline]
+    pub fn right(&self) -> Vec3 {
+        self.rotation * Vec3::unit_x()
+    }
+
+    #[inline]
+    pub fn left(&self) -> Vec3 {
+        -self.right()
+    }
+
+    #[inline]
+    pub fn up(&self) -> Vec3 {
+        self.rotation * Vec3::unit_y()
+    }
+
+    #[inline]
+    pub fn down(&self) -> Vec3 {
+        -self.up()
+    }
+
     #[inline]
     pub fn forward(&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) {