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include/engine/core/object.h

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+/* -----------------------------------------------------------------------------
+	GSFramework
+	Copyright 2001-2013 Emmanuel Julien. All Rights Reserved.
+----------------------------------------------------------------------------- */
+
+
+#ifndef	__NOBJECT__
+#define	__NOBJECT__
+
+
+		#include "core/renderable.h"
+		#include "core/skin.h"
+		#include "core/item.h"
+
+
+namespace GS {
+	namespace Core {
+
+/*!
+	@short	Object class.
+
+	This class simply links a geometry with an item and provide some wrapper
+	functions to render them.
+
+	@author Emmanuel Julien (ejulien@gsworks.fr)
+*/
+class	Object : public Item, public Renderable
+{
+protected:
+
+		AutoPtr <Skin> skin;
+
+public:
+
+struct	RenderData
+{	Render::sGeometry geometry;	};
+
+static	float			lod_bias;
+
+/*!
+	@name	Renderable interface.
+	@{
+*/
+		/// Compute the renderable minmax.
+virtual	void			ComputeRenderableMinMax(MinMax &);
+		/// Get the renderable primitive list for this renderable.
+virtual	uint			GetRenderablePrimitiveList(const Camera &view, const Camera &default_view, Stack <Render::Primitive *> &, Renderable::Context = Renderable::Context_Default, bool cull = true);
+
+		/// Setup item render data.
+virtual	void			RenderSetup(ResourceFactories * = 0);
+/// @}
+
+		bool			cache_geometry;			///< Whether the object should reuse cached geometry or create new instances.
+
+		/// Compute object world axis-aligned bounding box.
+		void			ComputeLocalMinMax(MinMax &) const;
+
+		/// Return the object skin.
+		Skin			*GetSkin() const { return skin; }
+
+		/// Return the binding bone matrix.
+		bool			GetBindMatrix(uint, Matrix4 &) const;
+		/// Update skin matrices.
+		void			UpdateSkin();
+
+		/// Has skin.
+inline	bool			HasSkin() const
+		{	return skin.IsValid() && skin->bones.GetCount();	}
+
+inline	uint			GetBoneCount() const
+		{	return skin.IsValid() ? skin->bones.GetCount() : 0;	}
+inline	Item			*GetBone(uint n) const
+		{	return skin.IsValid() ? skin->bones[n] : 0;	}
+
+		/// Allocate skin binding structures.
+virtual	bool			AllocateSkin(uint bone_count);
+		/// Free skin binding structures.
+virtual	void			FreeSkin();
+		/*!
+			@short	Bind a bone to this item's skin.
+
+			@note	You can specify the binding matrix for this bone. If you do
+					not the current bone item matrix will be used.
+		*/
+virtual	bool			BindBone(uint n, Item *bone);
+
+		String			geometry;
+		AutoPtr <RenderData> render_data;
+
+		bool			FromMetaTag(NML::Tag &);
+		NML::Tag		*AsMetaTag() const;
+
+		Object();
+};
+
+	} // Core
+} // GS
+
+
+#endif	// __NOBJECT__