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Fix possible NAN on some extreme tracks

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This commit is contained in:
Benau 2019-12-12 09:16:10 +08:00
parent edfd638cc4
commit e40ab453a6
1 changed files with 8 additions and 5 deletions
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13
src/physics/btKart.cpp
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@ -981,11 +981,14 @@ void btKart::adjustSpeed(btScalar min_speed, btScalar max_speed)
btVector3 upright_component = normal * normal.dot(velocity);
// Subtract the upright velocity component,
btVector3 v = velocity - upright_component;
const float velocity_ratio = min_speed / v.length();
// Scale the velocity in the plane, then add the upright component
// of the velocity back in.
m_chassisBody->setLinearVelocity( v*velocity_ratio
+ upright_component );
if (!v.fuzzyZero())
{
const float velocity_ratio = min_speed / v.length();
// Scale the velocity in the plane, then add the upright component
// of the velocity back in.
m_chassisBody->setLinearVelocity( v*velocity_ratio
+ upright_component );
}
}
}
else if (speed >0 && max_speed >= 0 && speed > max_speed)