hydro_rigid_body.h

/*************************************************************************/
/* Copyright (c) 2019 Jon Ring                                           */
/*                                                                       */
/* Permission is hereby granted, free of charge, to any person obtaining */
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#ifndef WATERCRAFT_BODY_H
#define WATERCRAFT_BODY_H

#include "clippable_mesh.h"
#include "scene/3d/physics_body.h"

class ImmediateGeometry;
class MeshInstance;
class WaterArea;
class WatercraftBallast;
class WatercraftPropulsion;
class WatercraftRudder;

class HydroRigidBody : public RigidBody {

	GDCLASS(HydroRigidBody, RigidBody)

public:
	HydroRigidBody();

protected:
	NodePath m_hull_path;
	MeshInstance *m_hull_mesh;
	ImmediateGeometry *m_debug_mesh;
	Vector3 m_thrust_origin;
	Vector3 m_thrust_direction;
	float m_thrust_rotation;
	float m_thrust_value;
	float m_density;
	float m_volume;
	WaterArea *m_water_area;

	Vector<WatercraftBallast *> m_ballast;
	Vector<WatercraftPropulsion *> m_propulsion;
	Vector<WatercraftRudder *> m_rudders;

	static void _bind_methods();
	void _notification(int p_what);
	void _direct_state_changed(Object *p_state);

private:
	void update_hull();
	void draw_debug_face(const Face3 &face, const Transform &transform);
	void draw_debug_mesh(const ClippableMesh &mesh, const Transform &transform);
	void draw_debug_vector(const Vector3 &dir, const Vector3 &origin, const Transform &transform);

	friend class WaterArea;
	friend class WatercraftBallast;
	friend class WatercraftPropulsion;
	friend class WatercraftRudder;
};

#endif