Add a header file

AnKi/Scene/Spatial.h

@@ -0,0 +1,124 @@
+// Copyright (C) 2009-2022, Panagiotis Christopoulos Charitos and contributors.
+// All rights reserved.
+// Code licensed under the BSD License.
+// http://www.anki3d.org/LICENSE
+
+#pragma once
+
+#include <AnKi/Scene/Octree.h>
+#include <AnKi/Collision.h>
+
+
+namespace anki {
+
+/// @addtogroup scene
+/// @{
+
+/// XXX
+class Spatial
+{
+public:
+	Spatial(SceneComponent* owner)
+	{
+		ANKI_ASSERT(owner);
+		m_octreeInfo.m_userData = owner;
+	}
+
+	Spatial(const Spatial&) = delete;
+
+	~Spatial()
+	{
+		ANKI_ASSERT(!m_placed && "Forgot to call removeFromOctree");
+	}
+
+	Spatial& operator=(const Spatial&) = delete;
+
+	const Aabb& getAabbWorldSpace() const
+	{
+		ANKI_ASSERT(!m_alwaysVisible || !m_dirty);
+		return m_aabb;
+	}
+
+	/// Update the "actual scene bounds" of the octree or not.
+	void setUpdatesOctreeBounds(Bool update)
+	{
+		m_updatesOctreeBounds = update;
+	}
+
+	/// Make it or not always visible.
+	void setAlwaysVisible(Bool alwaysVisible)
+	{
+		m_alwaysVisible = alwaysVisible;
+	}
+
+	/// Check if it's always visible or not.
+	Bool getAlwaysVisible() const
+	{
+		return m_alwaysVisible;
+	}
+
+	template<typename TCollisionShape>
+	void update(Octree& octree, const TCollisionShape& shape)
+	{
+		m_aabb = computeAabb(shape);
+		updateCommon(octree);
+	}
+
+	template<typename TVec>
+	void update(Octree& octree, ConstWeakArray<TVec> points)
+	{
+		ANKI_ASSERT(pointCount > 0);
+		TVec min(kMaxF32), max(kMinF32);
+		for(const TVec& point : points)
+		{
+			min = min.min(point);
+			max = max.max(point);
+		}
+		m_aabb.setMin(min.xyz());
+		m_aabb.setMax(max.xyz());
+		updateCommon(octree);
+	}
+
+	void removeFromOctree(Octree& octree)
+	{
+		if(m_placed)
+		{
+			octree.remove(m_octreeInfo);
+			m_placed = false;
+		}
+	}
+
+private:
+	Aabb m_aabb = Aabb(Vec3(-1.0f), Vec3(1.0f)); ///< A faster shape.
+
+	OctreePlaceable m_octreeInfo;
+
+	Bool m_placed : 1 = false;
+	Bool m_updatesOctreeBounds : 1 = true;
+	Bool m_alwaysVisible : 1 = false;
+
+	void updateCommon(Octree& octree)
+	{
+		if(!m_alwaysVisible) [[likely]]
+		{
+			octree.place(m_aabb, &m_octreeInfo, m_updatesOctreeBounds);
+		}
+		else
+		{
+			octree.placeAlwaysVisible(&m_octreeInfo);
+		}
+
+		m_placed = true;
+		m_octreeInfo.reset();
+	}
+};
+
+template<>
+void Spatial::update<Aabb>(Octree& octree, const Aabb& shape)
+{
+	m_aabb = shape;
+	updateCommon(octree);
+}
+/// @}
+
+} // end namespace anki