Refactor: Remove obsolete IAnimatedMeshSceneNode interface (#16631)

irr/include/CBoneSceneNode.h

@@ -0,0 +1,68 @@
+// Copyright (C) 2002-2012 Nikolaus Gebhardt
+// This file is part of the "Irrlicht Engine".
+// For conditions of distribution and use, see copyright notice in irrlicht.h
+
+#pragma once
+
+// Used with SkinnedMesh and IAnimatedMeshSceneNode, for boned meshes
+
+#include "IBoneSceneNode.h"
+#include "Transform.h"
+#include "matrix4.h"
+
+#include <optional>
+
+namespace scene
+{
+
+class CBoneSceneNode : public IBoneSceneNode
+{
+public:
+	//! constructor
+	CBoneSceneNode(ISceneNode *parent, ISceneManager *mgr,
+			s32 id = -1, u32 boneIndex = 0,
+			const std::optional<std::string> &boneName = std::nullopt,
+			const core::Transform &transform = {},
+			const std::optional<core::matrix4> &matrix = std::nullopt) :
+		IBoneSceneNode(parent, mgr, id, boneIndex, boneName),
+		Matrix(matrix)
+	{
+		setTransform(transform);
+	}
+
+	void setTransform(const core::Transform &transform)
+	{
+		setPosition(transform.translation);
+		{
+			core::vector3df euler;
+			auto rot = transform.rotation;
+			// Invert to be consistent with setRotationDegrees
+			rot.makeInverse();
+			rot.toEuler(euler);
+			setRotation(euler * core::RADTODEG);
+		}
+		setScale(transform.scale);
+	}
+
+	core::Transform getTransform() const
+	{
+		return {
+			getPosition(),
+			core::quaternion(getRotation() * core::DEGTORAD).makeInverse(),
+			getScale()
+		};
+	}
+
+	core::matrix4 getRelativeTransformation() const override
+	{
+		if (Matrix)
+			return *Matrix;
+		return IBoneSceneNode::getRelativeTransformation();
+	}
+
+	//! Some file formats alternatively let bones specify a transformation matrix.
+	//! If this is set, it overrides the TRS properties.
+	std::optional<core::matrix4> Matrix;
+};
+
+} // end namespace scene