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work on pybullet/C-API createMultiBody (still preliminary, only sphere/box collision shapes, no links/hierarchies yet, soon)

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pybullet/C-API, expose linear/angular damping
fix some warnings (param name needs to be same in .h and .cpp)
fix potential startup threading issue (args were deleted in main thread while still possibly use in child thread)
fix for spinning/rolling friction in case of mixing maximal and reduced coordinate btMultiBody+btRigidBody
This commit is contained in:
Erwin Coumans
2017-06-04 22:04:16 -07:00
parent b23cb1dd2c
commit a7aed37632
12 changed files with 183 additions and 68 deletions
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36
examples/SharedMemory/PhysicsClientC_API.cpp
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@@ -877,6 +877,17 @@ int b3CreateMultiBodyBase(b3SharedMemoryCommandHandle commandHandle, double mass
return -2;
}
//useMaximalCoordinates are disabled by default, enabling them is experimental and not fully supported yet
void b3CreateMultiBodyUseMaximalCoordinates(b3SharedMemoryCommandHandle commandHandle)
{
struct SharedMemoryCommand* command = (struct SharedMemoryCommand*) commandHandle;
b3Assert(command);
b3Assert(command->m_type == CMD_CREATE_MULTI_BODY);
if (command->m_type==CMD_CREATE_MULTI_BODY)
{
command->m_updateFlags |= MULT_BODY_USE_MAXIMAL_COORDINATES;
}
}
int b3GetStatusMultiBodyUniqueId(b3SharedMemoryStatusHandle statusHandle)
{
@@ -1269,6 +1280,11 @@ int b3GetStatusBodyIndex(b3SharedMemoryStatusHandle statusHandle)
bodyId = status->m_rigidBodyCreateArgs.m_bodyUniqueId;
break;
}
case CMD_CREATE_MULTI_BODY_COMPLETED:
{
bodyId = status->m_dataStreamArguments.m_bodyUniqueId;
break;
}
default:
{
b3Assert(0);
@@ -1541,9 +1557,29 @@ int b3ChangeDynamicsInfoSetRestitution(b3SharedMemoryCommandHandle commandHandle
command->m_changeDynamicsInfoArgs.m_restitution = restitution;
command->m_updateFlags |= CHANGE_DYNAMICS_INFO_SET_RESTITUTION;
return 0;
}
int b3ChangeDynamicsInfoSetLinearDamping(b3SharedMemoryCommandHandle commandHandle, int bodyUniqueId,double linearDamping)
{
struct SharedMemoryCommand* command = (struct SharedMemoryCommand*) commandHandle;
b3Assert(command->m_type == CMD_CHANGE_DYNAMICS_INFO);
command->m_changeDynamicsInfoArgs.m_bodyUniqueId = bodyUniqueId;
command->m_changeDynamicsInfoArgs.m_linearDamping = linearDamping;
command->m_updateFlags |= CHANGE_DYNAMICS_INFO_SET_LINEAR_DAMPING;
return 0;
}
int b3ChangeDynamicsInfoSetAngularDamping(b3SharedMemoryCommandHandle commandHandle, int bodyUniqueId,double angularDamping)
{
struct SharedMemoryCommand* command = (struct SharedMemoryCommand*) commandHandle;
b3Assert(command->m_type == CMD_CHANGE_DYNAMICS_INFO);
command->m_changeDynamicsInfoArgs.m_bodyUniqueId = bodyUniqueId;
command->m_changeDynamicsInfoArgs.m_linearDamping = angularDamping;
command->m_updateFlags |= CHANGE_DYNAMICS_INFO_SET_ANGULAR_DAMPING;
return 0;
}
b3SharedMemoryCommandHandle b3InitCreateUserConstraintCommand(b3PhysicsClientHandle physClient, int parentBodyIndex, int parentJointIndex, int childBodyIndex, int childJointIndex, struct b3JointInfo* info)
{
PhysicsClient* cl = (PhysicsClient* ) physClient;