diff options
Diffstat (limited to 'source/gameengine/Ketsji/KX_ConvertPhysicsObjects.cpp')
-rw-r--r-- | source/gameengine/Ketsji/KX_ConvertPhysicsObjects.cpp | 338 |
1 files changed, 60 insertions, 278 deletions
diff --git a/source/gameengine/Ketsji/KX_ConvertPhysicsObjects.cpp b/source/gameengine/Ketsji/KX_ConvertPhysicsObjects.cpp index e0cd5a3bc9e..c95ab954022 100644 --- a/source/gameengine/Ketsji/KX_ConvertPhysicsObjects.cpp +++ b/source/gameengine/Ketsji/KX_ConvertPhysicsObjects.cpp @@ -680,188 +680,6 @@ void KX_ConvertODEEngineObject(KX_GameObject* gameobj, // forward declarations -static btCollisionShape* CreateBulletShapeFromMesh(RAS_MeshObject* meshobj, bool polytope) -{ - if (!meshobj) - return 0; - - btCollisionShape* collisionMeshShape = 0; - btConvexHullShape* convexHullShape = 0; - btTriangleMeshShape* concaveShape = 0; - - btTriangleMesh* collisionMeshData = 0; - - //see if there is any polygons, if not, bail out. - - int numPoints = 0; - btVector3* points = 0; - - // Mesh has no polygons! - int numpolys = meshobj->NumPolygons(); - if (!numpolys) - { - return NULL; - } - - // Count the number of collision polygons and check they all come from the same - // vertex array - int numvalidpolys = 0; - int vtxarray = -1; - RAS_IPolyMaterial *poly_material = NULL; - bool reinstance = true; - - for (int p=0; p<numpolys; p++) - { - RAS_Polygon* poly = meshobj->GetPolygon(p); - - // only add polygons that have the collisionflag set - if (poly->IsCollider()) - { - // check polygon is from the same vertex array - if (poly->GetVertexIndexBase().m_vtxarray != vtxarray) - { - if (vtxarray < 0) - vtxarray = poly->GetVertexIndexBase().m_vtxarray; - else - { - reinstance = false; - vtxarray = -1; - } - } - - // check poly is from the same material - if (poly->GetMaterial()->GetPolyMaterial() != poly_material) - { - if (poly_material) - { - reinstance = false; - poly_material = NULL; - } - else - poly_material = poly->GetMaterial()->GetPolyMaterial(); - } - - // count the number of collision polys - numvalidpolys++; - - // We have one collision poly, and we can't reinstance, so we - // might as well break here. - if (!reinstance) - break; - } - } - - // No collision polygons - if (numvalidpolys < 1) - return NULL; - - - if (polytope) - { - convexHullShape = new btConvexHullShape(&points[0].getX(),numPoints); - collisionMeshShape = convexHullShape; - } else - { - collisionMeshData = new btTriangleMesh(); -// concaveShape = new btTriangleMeshShape(collisionMeshData); - //collisionMeshShape = concaveShape; - - } - - - numvalidpolys = 0; - - for (int p2=0; p2<numpolys; p2++) - { - RAS_Polygon* poly = meshobj->GetPolygon(p2); - - // only add polygons that have the collisionflag set - if (poly->IsCollider()) - { - //Bullet can raycast any shape, so - if (polytope) - { - for (int i=0;i<poly->VertexCount();i++) - { - const float* vtx = meshobj->GetVertex(poly->GetVertexIndexBase().m_vtxarray, - poly->GetVertexIndexBase().m_indexarray[i], - poly->GetMaterial()->GetPolyMaterial())->getLocalXYZ(); - btPoint3 point(vtx[0],vtx[1],vtx[2]); - convexHullShape->addPoint(point); - } - if (poly->VertexCount()) - numvalidpolys++; - - } else - { - { - const float* vtx = meshobj->GetVertex(poly->GetVertexIndexBase().m_vtxarray, - poly->GetVertexIndexBase().m_indexarray[2], - poly->GetMaterial()->GetPolyMaterial())->getLocalXYZ(); - btPoint3 vertex0(vtx[0],vtx[1],vtx[2]); - vtx = meshobj->GetVertex(poly->GetVertexIndexBase().m_vtxarray, - poly->GetVertexIndexBase().m_indexarray[1], - poly->GetMaterial()->GetPolyMaterial())->getLocalXYZ(); - btPoint3 vertex1(vtx[0],vtx[1],vtx[2]); - vtx = meshobj->GetVertex(poly->GetVertexIndexBase().m_vtxarray, - poly->GetVertexIndexBase().m_indexarray[0], - poly->GetMaterial()->GetPolyMaterial())->getLocalXYZ(); - btPoint3 vertex2(vtx[0],vtx[1],vtx[2]); - collisionMeshData->addTriangle(vertex0,vertex1,vertex2); - numvalidpolys++; - } - if (poly->VertexCount() == 4) - { - const float* vtx = meshobj->GetVertex(poly->GetVertexIndexBase().m_vtxarray, - poly->GetVertexIndexBase().m_indexarray[3], - poly->GetMaterial()->GetPolyMaterial())->getLocalXYZ(); - btPoint3 vertex0(vtx[0],vtx[1],vtx[2]); - vtx = meshobj->GetVertex(poly->GetVertexIndexBase().m_vtxarray, - poly->GetVertexIndexBase().m_indexarray[2], - poly->GetMaterial()->GetPolyMaterial())->getLocalXYZ(); - btPoint3 vertex1(vtx[0],vtx[1],vtx[2]); - vtx = meshobj->GetVertex(poly->GetVertexIndexBase().m_vtxarray, - poly->GetVertexIndexBase().m_indexarray[0], - poly->GetMaterial()->GetPolyMaterial())->getLocalXYZ(); - btPoint3 vertex2(vtx[0],vtx[1],vtx[2]); - collisionMeshData->addTriangle(vertex0,vertex1,vertex2); - numvalidpolys++; - } - - } - } - } - - - - if (numvalidpolys > 0) - { - - if (!polytope) - { - bool useQuantization = true; - concaveShape = new btBvhTriangleMeshShape( collisionMeshData, useQuantization ); - //concaveShape = new btTriangleMeshShape( collisionMeshData ); - - concaveShape->recalcLocalAabb(); - if (collisionMeshShape) - delete collisionMeshShape; - collisionMeshShape = concaveShape; - - } - - - - return collisionMeshShape; - } - if (collisionMeshShape) - delete collisionMeshShape; - if (collisionMeshData) - delete collisionMeshData; - return NULL; - -} - void KX_ConvertBulletObject( class KX_GameObject* gameobj, class RAS_MeshObject* meshobj, @@ -878,6 +696,7 @@ void KX_ConvertBulletObject( class KX_GameObject* gameobj, bool isbulletdyna = false; CcdConstructionInfo ci; class PHY_IMotionState* motionstate = new KX_MotionState(gameobj->GetSGNode()); + class CcdShapeConstructionInfo *shapeInfo = new CcdShapeConstructionInfo(); @@ -894,120 +713,80 @@ void KX_ConvertBulletObject( class KX_GameObject* gameobj, ci.m_gravity = btVector3(0,0,0); ci.m_localInertiaTensor =btVector3(0,0,0); ci.m_mass = objprop->m_dyna ? shapeprops->m_mass : 0.f; + shapeInfo->m_radius = objprop->m_radius; isbulletdyna = objprop->m_dyna; ci.m_localInertiaTensor = btVector3(ci.m_mass/3.f,ci.m_mass/3.f,ci.m_mass/3.f); - btTransform trans; - trans.setIdentity(); - btCollisionShape* bm = 0; switch (objprop->m_boundclass) { case KX_BOUNDSPHERE: { - float radius = objprop->m_radius; - btVector3 inertiaHalfExtents ( - radius, - radius, - radius); + //float radius = objprop->m_radius; + //btVector3 inertiaHalfExtents ( + // radius, + // radius, + // radius); //blender doesn't support multisphere, but for testing: //bm = new MultiSphereShape(inertiaHalfExtents,,&trans.getOrigin(),&radius,1); - bm = new btSphereShape(objprop->m_radius); - bm->calculateLocalInertia(ci.m_mass,ci.m_localInertiaTensor); + shapeInfo->m_shapeType = PHY_SHAPE_SPHERE; + bm = shapeInfo->CreateBulletShape(); break; }; case KX_BOUNDBOX: { - MT_Vector3 halfExtents ( + shapeInfo->m_halfExtend.setValue( objprop->m_boundobject.box.m_extends[0], - objprop->m_boundobject.box.m_extends[1], - objprop->m_boundobject.box.m_extends[2]); - - halfExtents /= 2.f; - - //btVector3 he (halfExtents[0]-CONVEX_DISTANCE_MARGIN ,halfExtents[1]-CONVEX_DISTANCE_MARGIN ,halfExtents[2]-CONVEX_DISTANCE_MARGIN ); - //he = he.absolute(); - - btVector3 he (halfExtents[0],halfExtents[1],halfExtents[2]); - he = he.absolute(); - + objprop->m_boundobject.box.m_extends[1], + objprop->m_boundobject.box.m_extends[2]); - bm = new btBoxShape(he); - bm->calculateLocalInertia(ci.m_mass,ci.m_localInertiaTensor); + shapeInfo->m_halfExtend /= 2.0; + shapeInfo->m_halfExtend = shapeInfo->m_halfExtend.absolute(); + shapeInfo->m_shapeType = PHY_SHAPE_BOX; + bm = shapeInfo->CreateBulletShape(); break; }; case KX_BOUNDCYLINDER: { - btVector3 halfExtents ( + shapeInfo->m_halfExtend.setValue( objprop->m_boundobject.c.m_radius, objprop->m_boundobject.c.m_radius, objprop->m_boundobject.c.m_height * 0.5f ); - bm = new btCylinderShapeZ(halfExtents); - bm->calculateLocalInertia(ci.m_mass,ci.m_localInertiaTensor); - + shapeInfo->m_shapeType = PHY_SHAPE_CYLINDER; + bm = shapeInfo->CreateBulletShape(); break; } - case KX_BOUNDCONE: + case KX_BOUNDCONE: { - btVector3 halfExtents (objprop->m_boundobject.box.m_extends[0], - objprop->m_boundobject.box.m_extends[1], - objprop->m_boundobject.box.m_extends[2]); - - - halfExtents /= 2.f; - - bm = new btConeShapeZ(objprop->m_boundobject.c.m_radius,objprop->m_boundobject.c.m_height); - bm->calculateLocalInertia(ci.m_mass,ci.m_localInertiaTensor); - + shapeInfo->m_radius = objprop->m_boundobject.c.m_radius; + shapeInfo->m_height = objprop->m_boundobject.c.m_height; + shapeInfo->m_shapeType = PHY_SHAPE_CONE; + bm = shapeInfo->CreateBulletShape(); break; } - case KX_BOUNDPOLYTOPE: - { - bm = CreateBulletShapeFromMesh(meshobj,true); - if (bm) - { - bm->calculateLocalInertia(ci.m_mass,ci.m_localInertiaTensor); - } - break; - } - case KX_BOUNDMESH: - { - if (!ci.m_mass) - { - bm = CreateBulletShapeFromMesh(meshobj,false); - ci.m_localInertiaTensor.setValue(0.f,0.f,0.f); - //no moving concave meshes, so don't bother calculating inertia - //bm->calculateLocalInertia(ci.m_mass,ci.m_localInertiaTensor); - } - - break; - } - - default: - //interpret the shape as a concave triangle-mesh + case KX_BOUNDPOLYTOPE: { - if (meshobj) - { - bm = CreateBulletShapeFromMesh(meshobj,false); - ci.m_localInertiaTensor.setValue(0.f,0.f,0.f); - - // assert(0); - - /* - meshobj->ScheduleCollisionPolygons(); - - KX_DeformableMesh* gfxmesh = new KX_DeformableMesh(meshobj); - gfxmesh->sendFixedMapping(); - //trianglemesh - bm = new TriangleMeshInterface(gfxmesh,trans); - */ + shapeInfo->SetMesh(meshobj, true); + bm = shapeInfo->CreateBulletShape(); + break; + } + case KX_BOUNDMESH: + { + if (!ci.m_mass) + { + shapeInfo->SetMesh(meshobj, false); + bm = shapeInfo->CreateBulletShape(); + //no moving concave meshes, so don't bother calculating inertia + //bm->calculateLocalInertia(ci.m_mass,ci.m_localInertiaTensor); } + + break; } } @@ -1017,10 +796,13 @@ void KX_ConvertBulletObject( class KX_GameObject* gameobj, if (!bm) { delete motionstate; + delete shapeInfo; return; } bm->setMargin(0.06); + if (objprop->m_dyna) + bm->calculateLocalInertia(ci.m_mass,ci.m_localInertiaTensor); @@ -1030,31 +812,28 @@ void KX_ConvertBulletObject( class KX_GameObject* gameobj, //take relative transform into account! KX_BulletPhysicsController* parentCtrl = (KX_BulletPhysicsController*)objprop->m_dynamic_parent->GetPhysicsController(); assert(parentCtrl); + CcdShapeConstructionInfo* parentShapeInfo = parentCtrl->GetShapeInfo(); btRigidBody* rigidbody = parentCtrl->GetRigidBody(); btCollisionShape* colShape = rigidbody->getCollisionShape(); assert(colShape->isCompound()); btCompoundShape* compoundShape = (btCompoundShape*)colShape; - btTransform childTrans; - childTrans.setIdentity(); - NodeList& children = objprop->m_dynamic_parent->GetSGNode()->GetSGChildren(); MT_Point3 childPos = gameobj->GetSGNode()->GetLocalPosition(); MT_Matrix3x3 childRot = gameobj->GetSGNode()->GetLocalOrientation(); MT_Vector3 childScale = gameobj->GetSGNode()->GetLocalScale(); bm->setLocalScaling(btVector3(childScale.x(),childScale.y(),childScale.z())); - childTrans.setOrigin(btVector3(childPos.x(),childPos.y(),childPos.z())); + shapeInfo->m_childTrans.setOrigin(btVector3(childPos.x(),childPos.y(),childPos.z())); float rotval[12]; childRot.getValue(rotval); btMatrix3x3 newRot; newRot.setValue(rotval[0],rotval[1],rotval[2],rotval[4],rotval[5],rotval[6],rotval[8],rotval[9],rotval[10]); newRot = newRot.transpose(); - childTrans.setBasis(newRot); - - - compoundShape->addChildShape(childTrans,bm); - kxscene->AddShape(bm); + shapeInfo->m_childTrans.setBasis(newRot); + parentShapeInfo->AddShape(shapeInfo); + + compoundShape->addChildShape(shapeInfo->m_childTrans,bm); //do some recalc? //recalc inertia for rigidbody if (!rigidbody->isStaticOrKinematicObject()) @@ -1069,15 +848,16 @@ void KX_ConvertBulletObject( class KX_GameObject* gameobj, if (objprop->m_hasCompoundChildren) { - //replace shape by compoundShape + // create a compound shape info + CcdShapeConstructionInfo *compoundShapeInfo = new CcdShapeConstructionInfo(); + compoundShapeInfo->m_shapeType = PHY_SHAPE_COMPOUND; + compoundShapeInfo->AddShape(shapeInfo); + // create the compound shape manually as we already have the child shape btCompoundShape* compoundShape = new btCompoundShape(); - btTransform identTrans; - identTrans.setIdentity(); - compoundShape->addChildShape(identTrans,bm); - //note abount compoundShape: Bullet does not delete the child shapes when - //the compound shape is deleted, so insert also the child shapes - kxscene->AddShape(bm); + compoundShape->addChildShape(shapeInfo->m_childTrans,bm); + // now replace the shape bm = compoundShape; + shapeInfo = compoundShapeInfo; } @@ -1113,6 +893,7 @@ void KX_ConvertBulletObject( class KX_GameObject* gameobj, ci.m_collisionShape = bm; + ci.m_shapeInfo = shapeInfo; ci.m_friction = smmaterial->m_friction;//tweak the friction a bit, so the default 0.5 works nice ci.m_restitution = smmaterial->m_restitution; ci.m_physicsEnv = env; @@ -1125,8 +906,9 @@ void KX_ConvertBulletObject( class KX_GameObject* gameobj, ci.m_collisionFilterMask = (isbulletdyna) ? short(CcdConstructionInfo::AllFilter) : short(CcdConstructionInfo::AllFilter ^ CcdConstructionInfo::StaticFilter); ci.m_bRigid = objprop->m_dyna && objprop->m_angular_rigidbody; KX_BulletPhysicsController* physicscontroller = new KX_BulletPhysicsController(ci,isbulletdyna); - //remember that we created a shape so that we can delete it when the scene is removed (bullet will not delete it) - kxscene->AddShape(bm); + // shapeInfo is reference counted, decrement now as we don't use it anymore + if (shapeInfo) + shapeInfo->Release(); if (objprop->m_in_active_layer) { |