135 lines
3.8 KiB
C++
135 lines
3.8 KiB
C++
// Copyright © 2008-2021 Pioneer Developers. See AUTHORS.txt for details
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// Licensed under the terms of the GPL v3. See licenses/GPL-3.txt
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#ifndef _DYNAMICBODY_H
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#define _DYNAMICBODY_H
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#include "ModelBody.h"
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#include "matrix4x4.h"
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#include "vector3.h"
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class Propulsion;
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class FixedGuns;
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class Orbit;
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class DynamicBody : public ModelBody {
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private:
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friend class Propulsion;
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friend class FixedGuns;
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public:
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OBJDEF(DynamicBody, ModelBody, DYNAMICBODY);
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DynamicBody();
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DynamicBody(const Json &jsonObj, Space *space);
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virtual ~DynamicBody();
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virtual vector3d GetVelocity() const override;
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virtual void SetVelocity(const vector3d &v) override;
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virtual void SetFrame(FrameId fId) override;
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vector3d GetAngVelocity() const;
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void SetAngVelocity(const vector3d &v);
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virtual bool OnCollision(Body *o, Uint32 flags, double relVel) override;
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vector3d GetAngularMomentum() const;
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double GetAngularInertia() const { return m_angInertia; }
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void SetMassDistributionFromModel();
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void SetMoving(bool isMoving) { m_isMoving = isMoving; }
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bool IsMoving() const { return m_isMoving; }
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virtual double GetMass() const override { return m_mass; } // XXX don't override this
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virtual void TimeStepUpdate(const float timeStep) override;
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double CalcAtmosphericDrag(double velSqr, double area, double coeff) const;
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void CalcExternalForce();
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void SetMass(double);
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void AddForce(const vector3d &);
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void AddTorque(const vector3d &);
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void SetForce(const vector3d &);
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void SetTorque(const vector3d &);
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vector3d GetLastForce() const { return m_lastForce; }
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vector3d GetLastTorque() const { return m_lastTorque; }
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// body-relative forces
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void AddRelForce(const vector3d &);
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void AddRelTorque(const vector3d &);
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vector3d GetExternalForce() const { return m_externalForce; }
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vector3d GetAtmosForce() const { return m_atmosForce; }
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vector3d GetGravityForce() const { return m_gravityForce; }
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virtual void UpdateInterpTransform(double alpha) override;
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virtual void PostLoadFixup(Space *space) override;
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Orbit ComputeOrbit() const;
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/* TODO: This is a big simplification...
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* something better because AI on dynamic is
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* a "loose" thing (also see AIError m_aiMessage
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* in line 83)
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*/
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enum AIError { // <enum scope='Ship' name=ShipAIError prefix=AIERROR_ public>
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AIERROR_NONE = 0,
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AIERROR_GRAV_TOO_HIGH,
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AIERROR_REFUSED_PERM,
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AIERROR_PRESS_TOO_HIGH,
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AIERROR_ORBIT_IMPOSSIBLE
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};
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AIError AIMessage(AIError msg = AIERROR_NONE)
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{
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AIError tmp = m_aiMessage;
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m_aiMessage = msg;
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return tmp;
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}
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enum Feature {
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PROPULSION = 0,
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FIXED_GUNS = 1,
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MAX_FEATURE = 2,
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};
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bool Have(Feature f) const { return m_features[f]; };
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void SetDecelerating(bool decel) { m_decelerating = decel; }
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const Propulsion *GetPropulsion() const;
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Propulsion *GetPropulsion();
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const FixedGuns *GetFixedGuns() const;
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FixedGuns *GetFixedGuns();
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void AddFeature(Feature f);
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protected:
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virtual void SaveToJson(Json &jsonObj, Space *space) override;
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void GetCurrentAtmosphericState(double &pressure, double &density) const;
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virtual vector3d CalcAtmosphericForce() const;
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static const double DEFAULT_DRAG_COEFF;
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double m_dragCoeff;
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bool m_decelerating;
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AIError m_aiMessage;
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private:
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vector3d m_oldPos;
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vector3d m_oldAngDisplacement;
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vector3d m_force;
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vector3d m_torque;
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vector3d m_vel;
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vector3d m_angVel;
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double m_mass;
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double m_massRadius; // set in a mickey-mouse fashion from the collision mesh and used to calculate m_angInertia
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double m_angInertia; // always sphere mass distribution
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bool m_isMoving;
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vector3d m_externalForce;
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vector3d m_atmosForce;
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vector3d m_gravityForce;
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// for time accel reduction fudge
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vector3d m_lastForce;
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vector3d m_lastTorque;
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bool m_features[MAX_FEATURE];
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RefCountedPtr<Propulsion> m_propulsion;
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RefCountedPtr<FixedGuns> m_fixedGuns;
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};
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#endif /* _DYNAMICBODY_H */
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