public BSActor(BSScene physicsScene, BSPhysObject pObj, string actorName)
{
m_physicsScene = physicsScene;
m_controllingPrim = pObj;
ActorName = actorName;
Enabled = true;
}
// Get a reference to a physical shape. Create if it doesn't exist
public static BSShape GetShapeReference(BSScene physicsScene, bool forceRebuild, BSPhysObject prim)
{
BSShape ret = null;
if (prim.PreferredPhysicalShape == BSPhysicsShapeType.SHAPE_CAPSULE)
{
// an avatar capsule is close to a native shape (it is not shared)
ret = BSShapeNative.GetReference(physicsScene, prim, BSPhysicsShapeType.SHAPE_CAPSULE,
FixedShapeKey.KEY_CAPSULE);
physicsScene.DetailLog("{0},BSShape.GetShapeReference,avatarCapsule,shape={1}", prim.LocalID, ret);
}
// Compound shapes are handled special as they are rebuilt from scratch.
// This isn't too great a hardship since most of the child shapes will have already been created.
if (ret == null && prim.PreferredPhysicalShape == BSPhysicsShapeType.SHAPE_COMPOUND)
{
// Getting a reference to a compound shape gets you the compound shape with the root prim shape added
ret = BSShapeCompound.GetReference(prim);
physicsScene.DetailLog("{0},BSShapeCollection.CreateGeom,compoundShape,shape={1}", prim.LocalID, ret);
}
// Avatars have their own unique shape
if (ret == null && prim.PreferredPhysicalShape == BSPhysicsShapeType.SHAPE_AVATAR)
{
// Getting a reference to a compound shape gets you the compound shape with the root prim shape added
ret = BSShapeAvatar.GetReference(prim);
physicsScene.DetailLog("{0},BSShapeCollection.CreateGeom,avatarShape,shape={1}", prim.LocalID, ret);
}
if (ret == null)
ret = GetShapeReferenceNonSpecial(physicsScene, forceRebuild, prim);
return ret;
}
// Create the geometry information in Bullet for later use.
// The objects needs a hull if it's physical otherwise a mesh is enough.
// if 'forceRebuild' is true, the geometry is unconditionally rebuilt. For meshes and hulls,
// shared geometries will be used. If the parameters of the existing shape are the same
// as this request, the shape is not rebuilt.
// Info in prim.BSShape is updated to the new shape.
// Returns 'true' if the geometry was rebuilt.
// Called at taint-time!
private bool CreateGeom(bool forceRebuild, BSPhysObject prim, ShapeDestructionCallback shapeCallback)
{
bool ret = false;
bool haveShape = false;
if (!haveShape && prim.PreferredPhysicalShape == BSPhysicsShapeType.SHAPE_CAPSULE)
{
// an avatar capsule is close to a native shape (it is not shared)
GetReferenceToNativeShape(prim, BSPhysicsShapeType.SHAPE_CAPSULE, FixedShapeKey.KEY_CAPSULE, shapeCallback);
if (DDetail) DetailLog("{0},BSShapeCollection.CreateGeom,avatarCapsule,shape={1}", prim.LocalID, prim.PhysShape);
ret = true;
haveShape = true;
}
// Compound shapes are handled special as they are rebuilt from scratch.
// This isn't too great a hardship since most of the child shapes will have already been created.
if (!haveShape && prim.PreferredPhysicalShape == BSPhysicsShapeType.SHAPE_COMPOUND)
{
ret = GetReferenceToCompoundShape(prim, shapeCallback);
if (DDetail) DetailLog("{0},BSShapeCollection.CreateGeom,compoundShape,shape={1}", prim.LocalID, prim.PhysShape);
haveShape = true;
}
if (!haveShape)
{
ret = CreateGeomNonSpecial(forceRebuild, prim, shapeCallback);
}
return ret;
}
// Create a body object in Bullet.
// Updates prim.BSBody with the information about the new body if one is created.
// Returns 'true' if an object was actually created.
// Called at taint-time.
private bool CreateBody(bool forceRebuild, BSPhysObject prim, BulletWorld sim, BodyDestructionCallback bodyCallback)
{
bool ret = false;
// the mesh, hull or native shape must have already been created in Bullet
bool mustRebuild = !prim.PhysBody.HasPhysicalBody;
// If there is an existing body, verify it's of an acceptable type.
// If not a solid object, body is a GhostObject. Otherwise a RigidBody.
if (!mustRebuild)
{
CollisionObjectTypes bodyType = (CollisionObjectTypes)PhysicsScene.PE.GetBodyType(prim.PhysBody);
if (prim.IsSolid && bodyType != CollisionObjectTypes.CO_RIGID_BODY
|| !prim.IsSolid && bodyType != CollisionObjectTypes.CO_GHOST_OBJECT)
{
// If the collisionObject is not the correct type for solidness, rebuild what's there
mustRebuild = true;
if (DDetail) DetailLog("{0},BSShapeCollection.CreateBody,forceRebuildBecauseChangingBodyType,bodyType={1}", prim.LocalID, bodyType);
}
}
if (mustRebuild || forceRebuild)
{
// Free any old body
DereferenceBody(prim.PhysBody, bodyCallback);
BulletBody aBody;
if (prim.IsSolid)
{
aBody = PhysicsScene.PE.CreateBodyFromShape(sim, prim.PhysShape, prim.LocalID, prim.RawPosition, prim.RawOrientation);
if (DDetail) DetailLog("{0},BSShapeCollection.CreateBody,mesh,body={1}", prim.LocalID, aBody);
}
else
{
aBody = PhysicsScene.PE.CreateGhostFromShape(sim, prim.PhysShape, prim.LocalID, prim.RawPosition, prim.RawOrientation);
if (DDetail) DetailLog("{0},BSShapeCollection.CreateBody,ghost,body={1}", prim.LocalID, aBody);
}
ReferenceBody(aBody);
prim.PhysBody = aBody;
ret = true;
}
return ret;
}
private BulletShape BuildPhysicalNativeShape(BSPhysObject prim, BSPhysicsShapeType shapeType,
FixedShapeKey shapeKey)
{
BulletShape newShape;
// Need to make sure the passed shape information is for the native type.
ShapeData nativeShapeData = new ShapeData();
nativeShapeData.Type = shapeType;
nativeShapeData.ID = prim.LocalID;
nativeShapeData.Scale = prim.Scale;
nativeShapeData.Size = prim.Scale; // unneeded, I think.
nativeShapeData.MeshKey = (ulong)shapeKey;
nativeShapeData.HullKey = (ulong)shapeKey;
if (shapeType == BSPhysicsShapeType.SHAPE_CAPSULE)
{
newShape = PhysicsScene.PE.BuildCapsuleShape(PhysicsScene.World, 1f, 1f, prim.Scale);
if (DDetail) DetailLog("{0},BSShapeCollection.BuildPhysicalNativeShape,capsule,scale={1}", prim.LocalID, prim.Scale);
}
else
{
// Native shapes are scaled in Bullet so set the scaling to the size
newShape = PhysicsScene.PE.BuildNativeShape(PhysicsScene.World, nativeShapeData);
}
if (!newShape.HasPhysicalShape)
{
PhysicsScene.Logger.ErrorFormat("{0} BuildPhysicalNativeShape failed. ID={1}, shape={2}",
LogHeader, prim.LocalID, shapeType);
}
newShape.shapeKey = (System.UInt64)shapeKey;
newShape.isNativeShape = true;
return newShape;
}
public bool GetBodyAndShape(bool forceRebuild, BulletWorld sim, BSPhysObject prim)
{
return GetBodyAndShape(forceRebuild, sim, prim, null, null);
}
public static BSShape GetReference(BSPhysObject prim)
{
return new BSShapeNull();
}
// Creates a native shape and assignes it to prim.BSShape.
// "Native" shapes are never shared. they are created here and destroyed in DereferenceShape().
private bool GetReferenceToNativeShape(BSPhysObject prim,
BSPhysicsShapeType shapeType, FixedShapeKey shapeKey,
ShapeDestructionCallback shapeCallback)
{
// release any previous shape
DereferenceShape(prim.PhysShape, shapeCallback);
BulletShape newShape = BuildPhysicalNativeShape(prim, shapeType, shapeKey);
// Don't need to do a 'ReferenceShape()' here because native shapes are not shared.
if (DDetail) DetailLog("{0},BSShapeCollection.AddNativeShapeToPrim,create,newshape={1},scale={2}",
prim.LocalID, newShape, prim.Scale);
// native shapes are scaled by Bullet
prim.PhysShape = newShape;
return true;
}
// See that hull shape exists in the physical world and update prim.BSShape.
// We could be creating the hull because scale changed or whatever.
// Return 'true' if a new hull was built. Otherwise, returning a shared hull instance.
private bool GetReferenceToHull(BSPhysObject prim, ShapeDestructionCallback shapeCallback)
{
BulletShape newShape;
float lod;
System.UInt64 newHullKey = ComputeShapeKey(prim.Size, prim.BaseShape, out lod);
// if the hull hasn't changed, don't rebuild it
if (newHullKey == prim.PhysShape.shapeKey && prim.PhysShape.type == BSPhysicsShapeType.SHAPE_HULL)
return false;
if (DDetail) DetailLog("{0},BSShapeCollection.GetReferenceToHull,create,oldKey={1},newKey={2}",
prim.LocalID, prim.PhysShape.shapeKey.ToString("X"), newHullKey.ToString("X"));
// Remove usage of the previous shape.
DereferenceShape(prim.PhysShape, shapeCallback);
newShape = CreatePhysicalHull(prim.PhysObjectName, newHullKey, prim.BaseShape, prim.Size, lod);
// It might not have been created if we're waiting for an asset.
newShape = VerifyMeshCreated(newShape, prim);
ReferenceShape(newShape);
prim.PhysShape = newShape;
return true; // 'true' means a new shape has been added to this prim
}
// return 'true' if the prim's shape was changed.
public bool CreateGeomMeshOrHull(BSPhysObject prim, ShapeDestructionCallback shapeCallback)
{
bool ret = false;
// Note that if it's a native shape, the check for physical/non-physical is not
// made. Native shapes work in either case.
if (prim.IsPhysical && BSParam.ShouldUseHullsForPhysicalObjects)
{
// Update prim.BSShape to reference a hull of this shape.
ret = GetReferenceToHull(prim, shapeCallback);
if (DDetail) DetailLog("{0},BSShapeCollection.CreateGeom,hull,shape={1},key={2}",
prim.LocalID, prim.PhysShape, prim.PhysShape.shapeKey.ToString("X"));
}
else
{
ret = GetReferenceToMesh(prim, shapeCallback);
if (DDetail) DetailLog("{0},BSShapeCollection.CreateGeom,mesh,shape={1},key={2}",
prim.LocalID, prim.PhysShape, prim.PhysShape.shapeKey.ToString("X"));
}
return ret;
}
// The simulation step is telling this object about a collision.
// Return 'true' if a collision was processed and should be sent up.
// Return 'false' if this object is not enabled/subscribed/appropriate for or has already seen this collision.
// Called at taint time from within the Step() function
public virtual bool Collide(uint collidingWith, BSPhysObject collidee,
OMV.Vector3 contactPoint, OMV.Vector3 contactNormal, float pentrationDepth)
{
bool ret = false;
bool p2col = true;
// We only need to test p2 for 'jump crouch purposes'
if (this.TypeName == "BSCharacter" && collidee is BSPrim)
{
// Testing if the collision is at the feet of the avatar
if ((this.Position.Z - contactPoint.Z) < (this.Size.Z * 0.5f))
p2col = false;
}
// The following lines make IsColliding(), CollidingGround() and CollidingObj work
if (p2col)
CollidingStep = PhysicsScene.SimulationStep;
TrueCollidingStep = PhysicsScene.SimulationStep;
CollisionAccumulation++;
// For movement tests, remember if we are colliding with an object that is moving.
ColliderIsMoving = collidee != null ? (collidee.RawVelocity != OMV.Vector3.Zero) : false;
// If someone has subscribed for collision events log the collision so it will be reported up
if (SubscribedEvents()) {
CollisionCollection.AddCollider(collidingWith, new ContactPoint(contactPoint, contactNormal, pentrationDepth, (ActorTypes)PhysicsActorType));
DetailLog("{0},{1}.Collison.AddCollider,call,with={2},point={3},normal={4},depth={5},colliderMoving={6}",
LocalID, TypeName, collidingWith, contactPoint, contactNormal, pentrationDepth, ColliderIsMoving);
ret = true;
}
return ret;
}
public override bool Collide(uint collidingWith, BSPhysObject collidee,
OMV.Vector3 contactPoint, OMV.Vector3 contactNormal, float pentrationDepth)
{
// prims in the same linkset cannot collide with each other
BSPrimLinkable convCollidee = collidee as BSPrimLinkable;
if (convCollidee != null && (this.Linkset.LinksetID == convCollidee.Linkset.LinksetID))
{
return false;
}
return base.Collide(collidingWith, collidee, contactPoint, contactNormal, pentrationDepth);
}
public static BSShape GetReference(BSScene physicsScene, BSPhysObject prim,
BSPhysicsShapeType shapeType, FixedShapeKey shapeKey)
{
// Native shapes are not shared and are always built anew.
//return new BSShapeNative(physicsScene, prim, shapeType, shapeKey);
return null;
}
private BSShapeNative(BSScene physicsScene, BSPhysObject prim,
BSPhysicsShapeType shapeType, FixedShapeKey shapeKey)
{
ShapeData nativeShapeData = new ShapeData();
nativeShapeData.Type = shapeType;
nativeShapeData.ID = prim.LocalID;
nativeShapeData.Scale = prim.Scale;
nativeShapeData.Size = prim.Scale;
nativeShapeData.MeshKey = (ulong)shapeKey;
nativeShapeData.HullKey = (ulong)shapeKey;
/*
if (shapeType == BSPhysicsShapeType.SHAPE_CAPSULE)
{
ptr = PhysicsScene.PE.BuildCapsuleShape(physicsScene.World, 1f, 1f, prim.Scale);
physicsScene.DetailLog("{0},BSShapeCollection.BuiletPhysicalNativeShape,capsule,scale={1}", prim.LocalID, prim.Scale);
}
else
{
ptr = PhysicsScene.PE.BuildNativeShape(physicsScene.World, nativeShapeData);
}
if (ptr == IntPtr.Zero)
{
physicsScene.Logger.ErrorFormat("{0} BuildPhysicalNativeShape failed. ID={1}, shape={2}",
LogHeader, prim.LocalID, shapeType);
}
type = shapeType;
key = (UInt64)shapeKey;
*/
}
private BulletShape CreatePhysicalMesh(BSPhysObject prim, System.UInt64 newMeshKey, PrimitiveBaseShape pbs, OMV.Vector3 size, float lod)
{
BulletShape newShape = new BulletShape();
MeshDesc meshDesc;
if (Meshes.TryGetValue(newMeshKey, out meshDesc))
{
// If the mesh has already been built just use it.
newShape = meshDesc.shape.Clone();
}
else
{
IMesh meshData = PhysicsScene.mesher.CreateMesh(prim.PhysObjectName, pbs, size, lod,
false // say it is not physical so a bounding box is not built
);
if (meshData != null)
{
int[] indices = meshData.getIndexListAsInt();
int realIndicesIndex = indices.Length;
float[] verticesAsFloats = meshData.getVertexListAsFloat();
if (BSParam.ShouldRemoveZeroWidthTriangles)
{
// Remove degenerate triangles. These are triangles with two of the vertices
// are the same. This is complicated by the problem that vertices are not
// made unique in sculpties so we have to compare the values in the vertex.
realIndicesIndex = 0;
for (int tri = 0; tri < indices.Length; tri += 3)
{
// Compute displacements into vertex array for each vertex of the triangle
int v1 = indices[tri + 0] * 3;
int v2 = indices[tri + 1] * 3;
int v3 = indices[tri + 2] * 3;
// Check to see if any two of the vertices are the same
if (!( ( verticesAsFloats[v1 + 0] == verticesAsFloats[v2 + 0]
&& verticesAsFloats[v1 + 1] == verticesAsFloats[v2 + 1]
&& verticesAsFloats[v1 + 2] == verticesAsFloats[v2 + 2])
|| ( verticesAsFloats[v2 + 0] == verticesAsFloats[v3 + 0]
&& verticesAsFloats[v2 + 1] == verticesAsFloats[v3 + 1]
&& verticesAsFloats[v2 + 2] == verticesAsFloats[v3 + 2])
|| ( verticesAsFloats[v1 + 0] == verticesAsFloats[v3 + 0]
&& verticesAsFloats[v1 + 1] == verticesAsFloats[v3 + 1]
&& verticesAsFloats[v1 + 2] == verticesAsFloats[v3 + 2]) )
)
{
// None of the vertices of the triangles are the same. This is a good triangle;
indices[realIndicesIndex + 0] = indices[tri + 0];
indices[realIndicesIndex + 1] = indices[tri + 1];
indices[realIndicesIndex + 2] = indices[tri + 2];
realIndicesIndex += 3;
}
}
}
DetailLog("{0},BSShapeCollection.CreatePhysicalMesh,origTri={1},realTri={2},numVerts={3}",
BSScene.DetailLogZero, indices.Length / 3, realIndicesIndex / 3, verticesAsFloats.Length / 3);
if (realIndicesIndex != 0)
{
newShape = PhysicsScene.PE.CreateMeshShape(PhysicsScene.World,
realIndicesIndex, indices, verticesAsFloats.Length / 3, verticesAsFloats);
}
else
{
PhysicsScene.Logger.DebugFormat("{0} All mesh triangles degenerate. Prim {1} at {2} in {3}",
LogHeader, prim.PhysObjectName, prim.RawPosition, PhysicsScene.Scene.RegionInfo.RegionName);
}
}
}
newShape.shapeKey = newMeshKey;
return newShape;
}
// The creation of a mesh or hull can fail if an underlying asset is not available.
// There are two cases: 1) the asset is not in the cache and it needs to be fetched;
// and 2) the asset cannot be converted (like failed decompression of JPEG2000s).
// The first case causes the asset to be fetched. The second case requires
// us to not loop forever.
// Called after creating a physical mesh or hull. If the physical shape was created,
// just return.
private BulletShape VerifyMeshCreated(BulletShape newShape, BSPhysObject prim)
{
// If the shape was successfully created, nothing more to do
if (newShape.HasPhysicalShape)
return newShape;
// VerifyMeshCreated is called after trying to create the mesh. If we think the asset had been
// fetched but we end up here again, the meshing of the asset must have failed.
// Prevent trying to keep fetching the mesh by declaring failure.
if (prim.PrimAssetState == BSPhysObject.PrimAssetCondition.Fetched)
{
prim.PrimAssetState = BSPhysObject.PrimAssetCondition.Failed;
PhysicsScene.Logger.WarnFormat("{0} Fetched asset would not mesh. {1}, texture={2}",
LogHeader, prim.PhysObjectName, prim.BaseShape.SculptTexture);
}
else
{
// If this mesh has an underlying asset and we have not failed getting it before, fetch the asset
if (prim.BaseShape.SculptEntry
&& prim.PrimAssetState != BSPhysObject.PrimAssetCondition.Failed
&& prim.PrimAssetState != BSPhysObject.PrimAssetCondition.Waiting
&& prim.BaseShape.SculptTexture != OMV.UUID.Zero
)
{
DetailLog("{0},BSShapeCollection.VerifyMeshCreated,fetchAsset", prim.LocalID);
// Multiple requestors will know we're waiting for this asset
prim.PrimAssetState = BSPhysObject.PrimAssetCondition.Waiting;
BSPhysObject xprim = prim;
Util.FireAndForget(delegate
{
BSPhysObject yprim = xprim; // probably not necessary, but, just in case.
PhysicsScene.Scene.AssetService.Get(yprim.BaseShape.SculptTexture.ToString(), null, delegate(string id, Object sender, AssetBase asset)
{
bool assetFound = false;
string mismatchIDs = String.Empty; // DEBUG DEBUG
if (asset != null && yprim.BaseShape.SculptEntry)
{
if (yprim.BaseShape.SculptTexture == asset.ID)
{
yprim.BaseShape.SculptData = asset.Data;
// This will cause the prim to see that the filler shape is not the right
// one and try again to build the object.
// No race condition with the normal shape setting since the rebuild is at taint time.
yprim.ForceBodyShapeRebuild(false /* inTaintTime */);
assetFound = true;
}
else
{
mismatchIDs = yprim.BaseShape.SculptTexture.ToString() + "/" + asset.ID;
}
}
if (assetFound)
yprim.PrimAssetState = BSPhysObject.PrimAssetCondition.Fetched;
else
yprim.PrimAssetState = BSPhysObject.PrimAssetCondition.Failed;
DetailLog("{0},BSShapeCollection,fetchAssetCallback,found={1},isSculpt={2},ids={3}",
yprim.LocalID, assetFound, yprim.BaseShape.SculptEntry, mismatchIDs );
});
});
}
else
{
if (prim.PrimAssetState == BSPhysObject.PrimAssetCondition.Failed)
{
PhysicsScene.Logger.WarnFormat("{0} Mesh failed to fetch asset. obj={1}, texture={2}",
LogHeader, prim.PhysObjectName, prim.BaseShape.SculptTexture);
}
}
}
// While we wait for the mesh defining asset to be loaded, stick in a simple box for the object.
BulletShape fillinShape = BuildPhysicalNativeShape(prim, BSPhysicsShapeType.SHAPE_BOX, FixedShapeKey.KEY_BOX);
DetailLog("{0},BSShapeCollection.VerifyMeshCreated,boxTempShape", prim.LocalID);
return fillinShape;
}
// Compound shapes are always built from scratch.
// This shouldn't be to bad since most of the parts will be meshes that had been built previously.
private bool GetReferenceToCompoundShape(BSPhysObject prim, ShapeDestructionCallback shapeCallback)
{
// Remove reference to the old shape
// Don't need to do this as the shape is freed when the new root shape is created below.
// DereferenceShape(prim.PhysShape, true, shapeCallback);
BulletShape cShape = PhysicsScene.PE.CreateCompoundShape(PhysicsScene.World, false);
// Create the shape for the root prim and add it to the compound shape. Cannot be a native shape.
CreateGeomMeshOrHull(prim, shapeCallback);
PhysicsScene.PE.AddChildShapeToCompoundShape(cShape, prim.PhysShape, OMV.Vector3.Zero, OMV.Quaternion.Identity);
if (DDetail) DetailLog("{0},BSShapeCollection.GetReferenceToCompoundShape,addRootPrim,compShape={1},rootShape={2}",
prim.LocalID, cShape, prim.PhysShape);
prim.PhysShape = cShape;
return true;
}
// Create a mesh, hull or native shape.
// Return 'true' if the prim's shape was changed.
public bool CreateGeomNonSpecial(bool forceRebuild, BSPhysObject prim, ShapeDestructionCallback shapeCallback)
{
bool ret = false;
bool haveShape = false;
bool nativeShapePossible = true;
PrimitiveBaseShape pbs = prim.BaseShape;
// If the prim attributes are simple, this could be a simple Bullet native shape
if (!haveShape
&& nativeShapePossible
&& pbs != null
&& !pbs.SculptEntry
&& ((pbs.SculptEntry && !BSParam.ShouldMeshSculptedPrim) || PrimHasNoCuts(pbs)) )
{
// Get the scale of any existing shape so we can see if the new shape is same native type and same size.
OMV.Vector3 scaleOfExistingShape = OMV.Vector3.Zero;
if (prim.PhysShape.HasPhysicalShape)
scaleOfExistingShape = PhysicsScene.PE.GetLocalScaling(prim.PhysShape);
if (DDetail) DetailLog("{0},BSShapeCollection.CreateGeom,maybeNative,force={1},primScale={2},primSize={3},primShape={4}",
prim.LocalID, forceRebuild, prim.Scale, prim.Size, prim.PhysShape.type);
// It doesn't look like Bullet scales native spheres so make sure the scales are all equal
if ((pbs.ProfileShape == ProfileShape.HalfCircle && pbs.PathCurve == (byte)Extrusion.Curve1)
&& pbs.Scale.X == pbs.Scale.Y && pbs.Scale.Y == pbs.Scale.Z)
{
haveShape = true;
if (forceRebuild
|| prim.Scale != scaleOfExistingShape
|| prim.PhysShape.type != BSPhysicsShapeType.SHAPE_SPHERE
)
{
ret = GetReferenceToNativeShape(prim, BSPhysicsShapeType.SHAPE_SPHERE,
FixedShapeKey.KEY_SPHERE, shapeCallback);
}
if (DDetail) DetailLog("{0},BSShapeCollection.CreateGeom,sphere,force={1},rebuilt={2},shape={3}",
prim.LocalID, forceRebuild, ret, prim.PhysShape);
}
if (!haveShape && pbs.ProfileShape == ProfileShape.Square && pbs.PathCurve == (byte)Extrusion.Straight)
{
haveShape = true;
if (forceRebuild
|| prim.Scale != scaleOfExistingShape
|| prim.PhysShape.type != BSPhysicsShapeType.SHAPE_BOX
)
{
ret = GetReferenceToNativeShape( prim, BSPhysicsShapeType.SHAPE_BOX,
FixedShapeKey.KEY_BOX, shapeCallback);
}
if (DDetail) DetailLog("{0},BSShapeCollection.CreateGeom,box,force={1},rebuilt={2},shape={3}",
prim.LocalID, forceRebuild, ret, prim.PhysShape);
}
}
// If a simple shape is not happening, create a mesh and possibly a hull.
if (!haveShape && pbs != null)
{
ret = CreateGeomMeshOrHull(prim, shapeCallback);
}
return ret;
}
// Builds a mesh shape in the physical world and updates prim.BSShape.
// Dereferences previous shape in BSShape and adds a reference for this new shape.
// Returns 'true' of a mesh was actually built. Otherwise .
// Called at taint-time!
private bool GetReferenceToMesh(BSPhysObject prim, ShapeDestructionCallback shapeCallback)
{
BulletShape newShape = new BulletShape();
float lod;
System.UInt64 newMeshKey = ComputeShapeKey(prim.Size, prim.BaseShape, out lod);
// if this new shape is the same as last time, don't recreate the mesh
if (newMeshKey == prim.PhysShape.shapeKey && prim.PhysShape.type == BSPhysicsShapeType.SHAPE_MESH)
return false;
if (DDetail) DetailLog("{0},BSShapeCollection.GetReferenceToMesh,create,oldKey={1},newKey={2},size={3},lod={4}",
prim.LocalID, prim.PhysShape.shapeKey.ToString("X"), newMeshKey.ToString("X"), prim.Size, lod);
// Since we're recreating new, get rid of the reference to the previous shape
DereferenceShape(prim.PhysShape, shapeCallback);
newShape = CreatePhysicalMesh(prim, newMeshKey, prim.BaseShape, prim.Size, lod);
// Take evasive action if the mesh was not constructed.
newShape = VerifyMeshCreated(newShape, prim);
ReferenceShape(newShape);
prim.PhysShape = newShape;
return true; // 'true' means a new shape has been added to this prim
}
// Called to update/change the body and shape for an object.
// First checks the shape and updates that if necessary then makes
// sure the body is of the right type.
// Return 'true' if either the body or the shape changed.
// 'shapeCallback' and 'bodyCallback' are, if non-null, functions called just before
// the current shape or body is destroyed. This allows the caller to remove any
// higher level dependencies on the shape or body. Mostly used for LinkSets to
// remove the physical constraints before the body is destroyed.
// Called at taint-time!!
public bool GetBodyAndShape(bool forceRebuild, BulletWorld sim, BSPhysObject prim,
ShapeDestructionCallback shapeCallback, BodyDestructionCallback bodyCallback)
{
PhysicsScene.AssertInTaintTime("BSShapeCollection.GetBodyAndShape");
bool ret = false;
// This lock could probably be pushed down lower but building shouldn't take long
lock (m_collectionActivityLock)
{
// Do we have the correct geometry for this type of object?
// Updates prim.BSShape with information/pointers to shape.
// Returns 'true' of BSShape is changed to a new shape.
bool newGeom = CreateGeom(forceRebuild, prim, shapeCallback);
// If we had to select a new shape geometry for the object,
// rebuild the body around it.
// Updates prim.BSBody with information/pointers to requested body
// Returns 'true' if BSBody was changed.
bool newBody = CreateBody((newGeom || forceRebuild), prim, PhysicsScene.World, bodyCallback);
ret = newGeom || newBody;
}
DetailLog("{0},BSShapeCollection.GetBodyAndShape,taintExit,force={1},ret={2},body={3},shape={4}",
prim.LocalID, forceRebuild, ret, prim.PhysBody, prim.PhysShape);
return ret;
}
public BSActorAvatarMove(BSScene physicsScene, BSPhysObject pObj, string actorName)
: base(physicsScene, pObj, actorName)
{
m_velocityMotor = null;
m_physicsScene.DetailLog("{0},BSActorAvatarMove,constructor", m_controllingPrim.LocalID);
}
public static BSShape GetShapeReferenceNonSpecial(BSScene physicsScene, bool forceRebuild, BSPhysObject prim)
{
return null;
}
