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f90a049702
Refactoring related to "smooth movement" See merge request OpenMW/openmw!285 (cherry picked from commit 6eaf0a389d5aed3b74ab1a7cf89574612f964bdf) e847b4c8 Split getSpeed() to getMaxSpeed() and getCurrentSpeed() a96c46bc Refactor calculation of movement.mSpeedFactor 03ee9090 Use getMaxSpeed instead of getCurrentSpeed where it makes sense. a178af5c Create helper functions `normalizeAngle` and `rotateVec2f`
48 lines
1.3 KiB
C++
48 lines
1.3 KiB
C++
#include "steering.hpp"
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#include "../mwworld/class.hpp"
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#include "../mwworld/ptr.hpp"
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#include "../mwbase/environment.hpp"
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#include "movement.hpp"
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namespace MWMechanics
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{
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bool smoothTurn(const MWWorld::Ptr& actor, float targetAngleRadians, int axis, float epsilonRadians)
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{
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float currentAngle (actor.getRefData().getPosition().rot[axis]);
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float diff (targetAngleRadians - currentAngle);
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if (std::abs(diff) >= osg::DegreesToRadians(180.f))
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{
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if (diff >= 0)
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{
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diff = diff - osg::DegreesToRadians(360.f);
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}
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else
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{
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diff = osg::DegreesToRadians(360.f) + diff;
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}
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}
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float absDiff = std::abs(diff);
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// The turning animation actually moves you slightly, so the angle will be wrong again.
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// Use epsilon to prevent jerkiness.
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if (absDiff < epsilonRadians)
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return true;
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float limit = getAngularVelocity(actor.getClass().getMaxSpeed(actor)) * MWBase::Environment::get().getFrameDuration();
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if (absDiff > limit)
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diff = osg::sign(diff) * limit;
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actor.getClass().getMovementSettings(actor).mRotation[axis] = diff;
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return false;
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}
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bool zTurn(const MWWorld::Ptr& actor, float targetAngleRadians, float epsilonRadians)
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{
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return smoothTurn(actor, targetAngleRadians, 2, epsilonRadians);
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}
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}
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