OpenMW/apps/openmw/mwmechanics/steering.hpp

#ifndef OPENMW_MECHANICS_STEERING_H
#define OPENMW_MECHANICS_STEERING_H

#include <osg/Math>

#include <algorithm>

namespace MWWorld
{
class Ptr;
}

namespace MWMechanics
{

// Max rotating speed, radian/sec
inline float getAngularVelocity(const float actorSpeed)
{
    constexpr float degreesPerFrame = 15.f;
    constexpr int framesPerSecond = 60;
    const float baseAngularVelocity = osg::DegreesToRadians(degreesPerFrame * framesPerSecond);
    const float baseSpeed = 200;
    return baseAngularVelocity * std::max(actorSpeed / baseSpeed, 1.0f);
}

/// configure rotation settings for an actor to reach this target angle (eventually)
/// @return have we reached the target angle?
bool zTurn(const MWWorld::Ptr& actor, float targetAngleRadians,
                                      float epsilonRadians = osg::DegreesToRadians(0.5));

bool smoothTurn(const MWWorld::Ptr& actor, float targetAngleRadians, int axis,
                                      float epsilonRadians = osg::DegreesToRadians(0.5));

}

#endif