Add Transform::new()

leniseev · Nov 28, 2018 · 6a59ce5 · 6a59ce5
1 parent 77285f6
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diff --git a/amethyst_core/src/transform/components/local_transform.rs b/amethyst_core/src/transform/components/local_transform.rs
@@ -24,6 +24,32 @@ pub struct Transform {
 }
 
 impl Transform {
+    /// Create a new Transform.
+    ///
+    /// # Examples
+    ///
+    /// ```rust
+    /// # use amethyst_core::transform::components::Transform;
+    /// # use amethyst_core::nalgebra::{Isometry3, Translation3, UnitQuaternion, Vector3};
+    /// let position = Translation3::new(0.0, 2.0, 4.0);
+    /// let rotation = UnitQuaternion::from_euler_angles(0.4, 0.2, 0.0);
+    /// let scale = Vector3::new(1.0, 1.0, 1.0);
+    ///
+    /// let t = Transform::new(position, rotation, scale);
+    ///
+    /// assert_eq!(t.translation().y, 2.0);
+    /// ```
+    pub fn new(
+        position: Translation3<f32>,
+        rotation: UnitQuaternion<f32>,
+        scale: Vector3<f32>,
+    ) -> Self {
+        Transform {
+            iso: Isometry3::from_parts(position, rotation),
+            scale,
+        }
+    }
+
     /// Makes the entity point towards `position`.
     ///
     /// `up` says which direction the entity should be 'rolled' to once it is pointing at

diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
@@ -26,6 +26,7 @@ The format is based on [Keep a Changelog][kc], and this project adheres to
 * `sprite_camera_follow` example showing how to use a Camera that has a sprite Parent ([#1099])
 * Added capabilities for the `DrawFlat2D` pass to draw `TextureHandle`s by themselves. Also added a simple example for this. ([#1153])
 * Added a `Flipped` component which allows flipping sprites or images horizontally and vertically. ([#1153])
+* Added transform constructor function `Transform::new()`. ([#1187])
 
 ### Changed
 
@@ -74,6 +75,9 @@ The format is based on [Keep a Changelog][kc], and this project adheres to
 [#1131]: https://github.com/amethyst/amethyst/pull/1131
 [#1153]: https://github.com/amethyst/amethyst/pull/1153
 [#1164]: https://github.com/amethyst/amethyst/pull/1164
+[#1142]: https://github.com/amethyst/amethyst/pull/1142
+[#1052]: https://github.com/amethyst/amethyst/pull/1052
+[#1187]: https://github.com/amethyst/amethyst/pull/1187
 [winit_018]: https://github.com/tomaka/winit/blob/v0.18.0/CHANGELOG.md#version-0180-2018-11-07
 [glutin_019]: https://github.com/tomaka/glutin/blob/master/CHANGELOG.md#version-0190-2018-11-09