/**************************************************************************/
/*  openxr_composition_layer_equirect.h                                   */
/**************************************************************************/
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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 OPENXR_COMPOSITION_LAYER_EQUIRECT_H
#define OPENXR_COMPOSITION_LAYER_EQUIRECT_H

#include <openxr/openxr.h>

#include "openxr_composition_layer.h"

class OpenXRCompositionLayerEquirect : public OpenXRCompositionLayer {
	GDCLASS(OpenXRCompositionLayerEquirect, OpenXRCompositionLayer);

	XrCompositionLayerEquirect2KHR composition_layer;

	float radius = 1.0;
	float central_horizontal_angle = Math_PI / 2.0;
	float upper_vertical_angle = Math_PI / 4.0;
	float lower_vertical_angle = Math_PI / 4.0;
	uint32_t fallback_segments = 10;

protected:
	static void _bind_methods();

	void _notification(int p_what);

	virtual void _on_openxr_session_begun() override;
	virtual Ref<Mesh> _create_fallback_mesh() override;

public:
	void set_radius(float p_radius);
	float get_radius() const;

	void set_central_horizontal_angle(float p_angle);
	float get_central_horizontal_angle() const;

	void set_upper_vertical_angle(float p_angle);
	float get_upper_vertical_angle() const;

	void set_lower_vertical_angle(float p_angle);
	float get_lower_vertical_angle() const;

	void set_fallback_segments(uint32_t p_fallback_segments);
	uint32_t get_fallback_segments() const;

	virtual Vector2 intersects_ray(const Vector3 &p_origin, const Vector3 &p_direction) const override;

	OpenXRCompositionLayerEquirect();
	~OpenXRCompositionLayerEquirect();
};

#endif // OPENXR_COMPOSITION_LAYER_EQUIRECT_H