Helper methods for the bone matrices

Given I target bevy as a game engine and bevy is stilll in glam 0.24, I think it is better to follow for now. Also add a few methods that can help with the bone calculation. Formula is like: translation * rotation * scale
anarelion · Jan 11, 2024 · 8e17a88 · 8e17a88
1 parent ec85c1b
commit 8e17a88
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Showing 3 changed files with 17 additions and 3 deletions.
diff --git a/Cargo.lock b/Cargo.lock
diff --git a/Cargo.toml b/Cargo.toml
@@ -8,7 +8,7 @@ edition = "2021"
 bitbybit = "1.2"
 bytes = "1.0"
 compress = "0.2"
-glam = "0.25"
+glam = "0.24"
 lazy_static = "1.4"
 thiserror = "1.0"
 tracing = "0.1"
diff --git a/src/wld/fragments/t18_skeleton_piece_track_def.rs b/src/wld/fragments/t18_skeleton_piece_track_def.rs
@@ -82,3 +82,17 @@ pub struct WldSkeletonPieceTrackFrameTransform {
     pub scale: f32,
     pub model_matrix: glam::Mat4,
 }
+
+impl WldSkeletonPieceTrackFrameTransform {
+    pub fn scale_matrix(&self) -> glam::Mat4 {
+        glam::Mat4::from_scale(glam::Vec3::from((self.scale, self.scale, self.scale)))
+    }
+
+    pub fn rotation_matrix(&self) -> glam::Mat4 {
+        glam::Mat4::from_quat(glam::Quat::from_array(self.rotation.to_array()))
+    }
+
+    pub fn translation_matrix(&self) -> glam::Mat4 {
+        glam::Mat4::from_translation(self.translation.to_array().into())
+    }
+}