//.logicking >>
void StaticShape::updatePhysics()
{
SAFE_DELETE(mPhysicsRep);
if ( PHYSICSMGR)
{
mShapeInstance->animate();
// Get the interior collision geometry.
ConcretePolyList polylist;
if (buildPolyList(PLC_Collision, &polylist, getWorldBox(), getWorldSphere()))
{
polylist.triangulate();
PhysicsCollision *colShape = PHYSICSMGR->createCollision();
colShape->addTriangleMesh( polylist.mVertexList.address(),
polylist.mVertexList.size(),
polylist.mIndexList.address(),
polylist.mIndexList.size() / 3,
MatrixF::Identity );
PhysicsWorld *world = PHYSICSMGR->getWorld( isServerObject() ? "server" : "client" );
mPhysicsRep = PHYSICSMGR->createBody();
//.hack - set kinematic flag to prevent crash on deleting static shape in character sweep(deleting Doors)
mPhysicsRep->init( colShape, 0, PhysicsBody::BF_KINEMATIC, this, world );
}
if (isServerObject())
setMaskBits(PhysicsMask);
}
}
void ForestCell::buildPhysicsRep( Forest *forest )
{
AssertFatal( isLeaf(), "ForestCell::buildPhysicsRep() - This shouldn't be called on non-leaf cells!" );
bool isServer = forest->isServerObject();
// Already has a PhysicsBody, if it needed to be rebuilt it would
// already be null.
if ( mPhysicsRep[ isServer ] )
return;
if ( !PHYSICSMGR )
return;
PhysicsCollision *colShape = NULL;
// If we can steal the collision shape from the server-side cell
// then do so as it saves us alot of cpu time and memory.
if ( mPhysicsRep[ 1 ] )
{
colShape = mPhysicsRep[ 1 ]->getColShape();
}
else
{
// We must pass a sphere to buildPolyList but it is not used.
const static SphereF dummySphere( Point3F::Zero, 0 );
// Step thru them and build collision data.
ForestItemVector::iterator itemItr = mItems.begin();
ConcretePolyList polyList;
for ( ; itemItr != mItems.end(); itemItr++ )
{
const ForestItem &item = *itemItr;
const ForestItemData *itemData = item.getData();
// If not collidable don't need to build anything.
if ( !itemData->mCollidable )
continue;
// TODO: When we add breakable tree support this is where
// we would need to store their collision data seperately.
item.buildPolyList( &polyList, item.getWorldBox(), dummySphere );
// TODO: Need to support multiple collision shapes
// for really big forests at some point in the future.
}
if ( !polyList.isEmpty() )
{
colShape = PHYSICSMGR->createCollision();
if ( !colShape->addTriangleMesh( polyList.mVertexList.address(),
polyList.mVertexList.size(),
polyList.mIndexList.address(),
polyList.mIndexList.size() / 3,
MatrixF::Identity ) )
{
SAFE_DELETE( colShape );
}
}
}
// We might not have any trees.
if ( !colShape )
return;
PhysicsWorld *world = PHYSICSMGR->getWorld( isServer ? "server" : "client" );
mPhysicsRep[ isServer ] = PHYSICSMGR->createBody();
mPhysicsRep[ isServer ]->init( colShape, 0, 0, forest, world );
}
PhysicsCollision* CollisionComponent::buildColShapes()
{
PROFILE_SCOPE(CollisionComponent_buildColShapes);
PhysicsCollision *colShape = NULL;
U32 surfaceKey = 0;
TSShape* shape = mOwnerRenderInterface->getShape();
if (mCollisionType == VisibleMesh)
{
// Here we build triangle collision meshes from the
// visible detail levels.
// A negative subshape on the detail means we don't have geometry.
const TSShape::Detail &detail = shape->details[0];
if (detail.subShapeNum < 0)
return NULL;
// We don't try to optimize the triangles we're given
// and assume the art was created properly for collision.
ConcretePolyList polyList;
polyList.setTransform(&MatrixF::Identity, mOwner->getScale());
// Create the collision meshes.
S32 start = shape->subShapeFirstObject[detail.subShapeNum];
S32 end = start + shape->subShapeNumObjects[detail.subShapeNum];
for (S32 o = start; o < end; o++)
{
const TSShape::Object &object = shape->objects[o];
if (detail.objectDetailNum >= object.numMeshes)
continue;
// No mesh or no verts.... nothing to do.
TSMesh *mesh = shape->meshes[object.startMeshIndex + detail.objectDetailNum];
if (!mesh || mesh->mNumVerts == 0)
continue;
// Gather the mesh triangles.
polyList.clear();
mesh->buildPolyList(0, &polyList, surfaceKey, NULL);
// Create the collision shape if we haven't already.
if (!colShape)
colShape = PHYSICSMGR->createCollision();
// Get the object space mesh transform.
MatrixF localXfm;
shape->getNodeWorldTransform(object.nodeIndex, &localXfm);
colShape->addTriangleMesh(polyList.mVertexList.address(),
polyList.mVertexList.size(),
polyList.mIndexList.address(),
polyList.mIndexList.size() / 3,
localXfm);
}
// Return what we built... if anything.
return colShape;
}
else if (mCollisionType == CollisionMesh)
{
// Scan out the collision hulls...
//
// TODO: We need to support LOS collision for physics.
//
for (U32 i = 0; i < shape->details.size(); i++)
{
const TSShape::Detail &detail = shape->details[i];
const String &name = shape->names[detail.nameIndex];
// Is this a valid collision detail.
if (!dStrStartsWith(name, colisionMeshPrefix) || detail.subShapeNum < 0)
continue;
// Now go thru the meshes for this detail.
S32 start = shape->subShapeFirstObject[detail.subShapeNum];
S32 end = start + shape->subShapeNumObjects[detail.subShapeNum];
if (start >= end)
continue;
for (S32 o = start; o < end; o++)
{
const TSShape::Object &object = shape->objects[o];
const String &meshName = shape->names[object.nameIndex];
if (object.numMeshes <= detail.objectDetailNum)
continue;
// No mesh, a flat bounds, or no verts.... nothing to do.
TSMesh *mesh = shape->meshes[object.startMeshIndex + detail.objectDetailNum];
if (!mesh || mesh->getBounds().isEmpty() || mesh->mNumVerts == 0)
continue;
// We need the default mesh transform.
MatrixF localXfm;
shape->getNodeWorldTransform(object.nodeIndex, &localXfm);
// We have some sort of collision shape... so allocate it.
if (!colShape)
colShape = PHYSICSMGR->createCollision();
// Any other mesh name we assume as a generic convex hull.
//
// Collect the verts using the vertex polylist which will
// filter out duplicates. This is importaint as the convex
// generators can sometimes fail with duplicate verts.
//
VertexPolyList polyList;
MatrixF meshMat(localXfm);
Point3F t = meshMat.getPosition();
t.convolve(mOwner->getScale());
meshMat.setPosition(t);
polyList.setTransform(&MatrixF::Identity, mOwner->getScale());
mesh->buildPolyList(0, &polyList, surfaceKey, NULL);
colShape->addConvex(polyList.getVertexList().address(),
polyList.getVertexList().size(),
meshMat);
} // objects
} // details
}
return colShape;
}
