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Don't apply gravity when swimming

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This commit is contained in:
Chris Robinson 2013-02-05 19:45:51 -08:00
parent fc307e64b0
commit 9cf30f39bd
3 changed files with 21 additions and 17 deletions
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32
apps/openmw/mwworld/physicssystem.cpp
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@ -81,7 +81,7 @@ namespace MWWorld
public:
static Ogre::Vector3 move(const MWWorld::Ptr &ptr, Ogre::Vector3 movement, float time,
OEngine::Physic::PhysicEngine *engine)
bool gravity, OEngine::Physic::PhysicEngine *engine)
{
const ESM::Position &refpos = ptr.getRefData().getPosition();
Ogre::Vector3 position(refpos.pos);
@ -100,8 +100,9 @@ namespace MWWorld
traceResults trace; //no initialization needed
int iterations=0, maxIterations=50; //arbitrary number. To prevent infinite loops. They shouldn't happen but it's good to be prepared.
float verticalVelocity = physicActor->getVerticalForce();
Ogre::Vector3 horizontalVelocity = movement/time;
float verticalVelocity = (gravity ? physicActor->getVerticalForce() :
horizontalVelocity.z);
Ogre::Vector3 velocity(horizontalVelocity.x, horizontalVelocity.y, verticalVelocity); // we need a copy of the velocity before we start clipping it for steps
Ogre::Vector3 clippedVelocity(horizontalVelocity.x, horizontalVelocity.y, verticalVelocity);
@ -115,18 +116,21 @@ namespace MWWorld
Ogre::Vector3 up(0.0f, 0.0f, 1.0f);
Ogre::Vector3 newPosition = position;
newtrace(&trace, position, position+Ogre::Vector3(0,0,-10), halfExtents, verticalRotation, isInterior, engine);
if(trace.fraction < 1.0f)
if(gravity)
{
if(getSlope(trace.planenormal) > sMaxSlope)
newtrace(&trace, position, position+Ogre::Vector3(0,0,-10), halfExtents, verticalRotation, isInterior, engine);
if(trace.fraction < 1.0f)
{
// if we're on a really steep slope, don't listen to user input
clippedVelocity.x = clippedVelocity.y = 0.0f;
}
else
{
// if we're within 10 units of the ground, force velocity to track the ground
clipVelocity(clippedVelocity, trace.planenormal, clippedVelocity, 1.0f);
if(getSlope(trace.planenormal) > sMaxSlope)
{
// if we're on a really steep slope, don't listen to user input
clippedVelocity.x = clippedVelocity.y = 0.0f;
}
else
{
// if we're within 10 units of the ground, force velocity to track the ground
clipVelocity(clippedVelocity, trace.planenormal, clippedVelocity, 1.0f);
}
}
}
@ -339,9 +343,9 @@ namespace MWWorld
}
}
Ogre::Vector3 PhysicsSystem::move(const MWWorld::Ptr &ptr, const Ogre::Vector3 &movement, float time)
Ogre::Vector3 PhysicsSystem::move(const MWWorld::Ptr &ptr, const Ogre::Vector3 &movement, float time, bool gravity)
{
return MovementSolver::move(ptr, movement, time, mEngine);
return MovementSolver::move(ptr, movement, time, gravity, mEngine);
}

2
apps/openmw/mwworld/physicssystem.hpp
View file

@ -35,7 +35,7 @@ namespace MWWorld
bool toggleCollisionMode();
Ogre::Vector3 move(const MWWorld::Ptr &ptr, const Ogre::Vector3 &movement, float time);
Ogre::Vector3 move(const MWWorld::Ptr &ptr, const Ogre::Vector3 &movement, float time, bool gravity);
std::pair<float, std::string> getFacedHandle (MWWorld::World& world, float queryDistance);
std::vector < std::pair <float, std::string> > getFacedHandles (float queryDistance);

4
apps/openmw/mwworld/worldimp.cpp
View file

@ -849,12 +849,12 @@ namespace MWWorld
player = iter;
continue;
}
Ogre::Vector3 vec = mPhysics->move(iter->first, iter->second, duration);
Ogre::Vector3 vec = mPhysics->move(iter->first, iter->second, duration, !isSwimming(iter->first));
moveObjectImp(iter->first, vec.x, vec.y, vec.z);
}
if(player != actors.end())
{
Ogre::Vector3 vec = mPhysics->move(player->first, player->second, duration);
Ogre::Vector3 vec = mPhysics->move(player->first, player->second, duration, !isSwimming(player->first));
moveObjectImp(player->first, vec.x, vec.y, vec.z);
}
}