/**************************************************************************/
/*  occluder_shape.h                                                      */
/**************************************************************************/
/*                         This file is part of:                          */
/*                             GODOT ENGINE                               */
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
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#ifndef OCCLUDER_SHAPE_H
#define OCCLUDER_SHAPE_H

#include "core/math/plane.h"
#include "core/resource.h"
#include "core/vector.h"

class OccluderShape : public Resource {
	GDCLASS(OccluderShape, Resource);
	OBJ_SAVE_TYPE(OccluderShape);
	RES_BASE_EXTENSION("occ");
	RID _shape;

protected:
	static void _bind_methods();

	RID get_shape() const { return _shape; }
	OccluderShape();

public:
	virtual RID get_rid() const { return _shape; }
	~OccluderShape();

	virtual Transform center_node(const Transform &p_global_xform, const Transform &p_parent_xform, real_t p_snap) = 0;

#ifdef TOOLS_ENABLED
	// for editor gizmo
	virtual AABB get_fallback_gizmo_aabb() const;
	virtual bool requires_uniform_scale() const { return false; }
#endif
};

class OccluderShapeSphere : public OccluderShape {
	GDCLASS(OccluderShapeSphere, OccluderShape);

	// We bandit a plane to store position / radius
	Vector<Plane> _spheres;
	const real_t _min_radius = 0.1;

#ifdef TOOLS_ENABLED
	AABB _aabb_local;
	void _update_aabb();
#endif

protected:
	static void _bind_methods();

public:
	void set_spheres(const Vector<Plane> &p_spheres);
	Vector<Plane> get_spheres() const { return _spheres; }

	void set_sphere_position(int p_idx, const Vector3 &p_position);
	void set_sphere_radius(int p_idx, real_t p_radius);

	void update_shape_to_visual_server();
	virtual Transform center_node(const Transform &p_global_xform, const Transform &p_parent_xform, real_t p_snap);

#ifdef TOOLS_ENABLED
	virtual AABB get_fallback_gizmo_aabb() const;
	virtual bool requires_uniform_scale() const { return false; }
#endif

	OccluderShapeSphere();
};

#endif // OCCLUDER_SHAPE_H