mirror of
https://gitlab.com/OpenMW/openmw.git
synced 2025-01-10 15:39:02 +00:00
119 lines
4.2 KiB
C++
119 lines
4.2 KiB
C++
|
|
#include "trace.h"
|
|
|
|
#include <map>
|
|
|
|
#include <btBulletDynamicsCommon.h>
|
|
#include <btBulletCollisionCommon.h>
|
|
|
|
#include "physic.hpp"
|
|
#include "pmove.h"
|
|
|
|
|
|
enum traceWorldType
|
|
{
|
|
collisionWorldTrace = 1,
|
|
pickWorldTrace = 2,
|
|
bothWorldTrace = collisionWorldTrace | pickWorldTrace
|
|
};
|
|
|
|
enum collaborativePhysicsType
|
|
{
|
|
No_Physics = 0, // Both are empty (example: statics you can walk through, like tall grass)
|
|
Only_Collision = 1, // This object only has collision physics but no pickup physics (example: statics)
|
|
Only_Pickup = 2, // This object only has pickup physics but no collision physics (example: items dropped on the ground)
|
|
Both_Physics = 3 // This object has both kinds of physics (example: activators)
|
|
};
|
|
|
|
struct NewPhysTraceResults
|
|
{
|
|
Ogre::Vector3 endPos;
|
|
Ogre::Vector3 hitNormal;
|
|
float fraction;
|
|
bool startSolid;
|
|
//const Object* hitObj;
|
|
};
|
|
|
|
template <const traceWorldType traceType>
|
|
static const bool NewPhysicsTrace(NewPhysTraceResults* const out, const Ogre::Vector3& start, const Ogre::Vector3& end,
|
|
const Ogre::Vector3& BBHalfExtents, const Ogre::Vector3& rotation, bool isInterior,
|
|
OEngine::Physic::PhysicEngine* enginePass)
|
|
{
|
|
const btVector3 btstart(start.x, start.y, start.z + BBHalfExtents.z);
|
|
const btVector3 btend(end.x, end.y, end.z + BBHalfExtents.z);
|
|
const btQuaternion btrot(rotation.y, rotation.x, rotation.z); //y, x, z
|
|
|
|
const btBoxShape newshape(btVector3(BBHalfExtents.x, BBHalfExtents.y, BBHalfExtents.z));
|
|
//const btCapsuleShapeZ newshape(BBHalfExtents.x, BBHalfExtents.z * 2 - BBHalfExtents.x * 2);
|
|
const btTransform from(btrot, btstart);
|
|
const btTransform to(btrot, btend);
|
|
|
|
btCollisionWorld::ClosestConvexResultCallback newTraceCallback(btstart, btend);
|
|
|
|
newTraceCallback.m_collisionFilterMask = (traceType == collisionWorldTrace) ? Only_Collision : Only_Pickup;
|
|
|
|
enginePass->dynamicsWorld->convexSweepTest(&newshape, from, to, newTraceCallback);
|
|
|
|
// Copy the hit data over to our trace results struct:
|
|
out->fraction = newTraceCallback.m_closestHitFraction;
|
|
|
|
const btVector3& tracehitnormal = newTraceCallback.m_hitNormalWorld;
|
|
out->hitNormal.x = tracehitnormal.x();
|
|
out->hitNormal.y = tracehitnormal.y();
|
|
out->hitNormal.z = tracehitnormal.z();
|
|
|
|
const btVector3& tracehitpos = newTraceCallback.m_hitPointWorld;
|
|
out->endPos.x = tracehitpos.x();
|
|
out->endPos.y = tracehitpos.y();
|
|
out->endPos.z = tracehitpos.z();
|
|
|
|
// StartSolid test:
|
|
{
|
|
out->startSolid = false;
|
|
if(isInterior)
|
|
{
|
|
// If inside and out of the tree, we're solid
|
|
btVector3 aabbMin, aabbMax;
|
|
enginePass->broadphase->getBroadphaseAabb(aabbMin, aabbMax);
|
|
btVector3 point(start.x, start.y, start.z);
|
|
if(!TestPointAgainstAabb2(aabbMin, aabbMax, point))
|
|
{
|
|
//We're solid
|
|
//THIS NEEDS TO BE TURNED OFF IF WE WANT FALLING IN EXTERIORS TO WORK CORRECTLY!!!!!!!
|
|
//out->startSolid = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
return newTraceCallback.hasHit();
|
|
}
|
|
|
|
|
|
void newtrace(traceResults* const results, const Ogre::Vector3& start, const Ogre::Vector3& end, const Ogre::Vector3& BBHalfExtents, const float rotation, bool isInterior, OEngine::Physic::PhysicEngine* enginePass) //Traceobj was a Aedra Object
|
|
{
|
|
NewPhysTraceResults out;
|
|
const bool hasHit = NewPhysicsTrace<collisionWorldTrace>(&out, start, end, BBHalfExtents,
|
|
Ogre::Vector3(0.0f, 0.0f, 0.0f),
|
|
isInterior, enginePass);
|
|
if (out.fraction < 0.001f)
|
|
results->startsolid = true;
|
|
else
|
|
results->startsolid = false;
|
|
results->allsolid = out.startSolid;
|
|
|
|
if(!hasHit)
|
|
{
|
|
results->endpos = end;
|
|
results->planenormal = Ogre::Vector3(0.0f, 0.0f, 1.0f);
|
|
results->entityNum = ENTITYNUM_NONE;
|
|
results->fraction = 1.0f;
|
|
}
|
|
else
|
|
{
|
|
results->fraction = out.fraction;
|
|
results->planenormal = out.hitNormal;
|
|
results->endpos = (end-start)*results->fraction + start;
|
|
results->entityNum = ENTITYNUM_WORLD;
|
|
}
|
|
}
|