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Physics SharedMemory:

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Add flags BOX_SHAPE_HAS_MASS and  BOX_SHAPE_HAS_COLLISION_SHAPE_TYPE to CMD_CREATE_RIGID_BODY
(which maps to CMD_CREATE_BOX_COLLISION_SHAPE for backward compatibility for now)
Need to add way to receive world transform
This commit is contained in:
erwin coumans
2015-10-27 14:55:46 -07:00
parent 57f50f1778
commit 9cc2b1ec12
6 changed files with 154 additions and 22 deletions
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53
examples/SharedMemory/PhysicsClientC_API.cpp
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@@ -246,6 +246,45 @@ int b3CreateBoxCommandSetStartPosition(b3SharedMemoryCommandHandle commandHandle
return 0;
}
int b3CreateBoxCommandSetHalfExtents(b3SharedMemoryCommandHandle commandHandle, double halfExtentsX,double halfExtentsY,double halfExtentsZ)
{
struct SharedMemoryCommand* command = (struct SharedMemoryCommand*) commandHandle;
b3Assert(command);
b3Assert(command->m_type == CMD_CREATE_BOX_COLLISION_SHAPE);
command->m_updateFlags |=BOX_SHAPE_HAS_HALF_EXTENTS;
command->m_createBoxShapeArguments.m_halfExtentsX = halfExtentsX;
command->m_createBoxShapeArguments.m_halfExtentsY = halfExtentsY;
command->m_createBoxShapeArguments.m_halfExtentsZ = halfExtentsZ;
return 0;
}
int b3CreateBoxCommandSetMass(b3SharedMemoryCommandHandle commandHandle, double mass)
{
struct SharedMemoryCommand* command = (struct SharedMemoryCommand*) commandHandle;
b3Assert(command);
b3Assert(command->m_type == CMD_CREATE_BOX_COLLISION_SHAPE);
command->m_updateFlags |=BOX_SHAPE_HAS_MASS;
command->m_createBoxShapeArguments.m_mass = mass;
return 0;
}
int b3CreateBoxCommandSetCollisionShapeType(b3SharedMemoryCommandHandle commandHandle, int collisionShapeType)
{
struct SharedMemoryCommand* command = (struct SharedMemoryCommand*) commandHandle;
b3Assert(command);
b3Assert(command->m_type == CMD_CREATE_BOX_COLLISION_SHAPE);
command->m_updateFlags |=BOX_SHAPE_HAS_COLLISION_SHAPE_TYPE;
command->m_createBoxShapeArguments.m_collisionShapeType = collisionShapeType;
return 0;
}
int b3CreateBoxCommandSetStartOrientation(b3SharedMemoryCommandHandle commandHandle, double startOrnX,double startOrnY,double startOrnZ, double startOrnW)
{
struct SharedMemoryCommand* command = (struct SharedMemoryCommand*) commandHandle;
@@ -328,20 +367,6 @@ int b3CreatePoseCommandSetJointPosition(b3PhysicsClientHandle physClient, b3Shar
}
int b3CreateBoxCommandSetHalfExtents(b3SharedMemoryCommandHandle commandHandle, double halfExtentsX,double halfExtentsY,double halfExtentsZ)
{
struct SharedMemoryCommand* command = (struct SharedMemoryCommand*) commandHandle;
b3Assert(command);
b3Assert(command->m_type == CMD_CREATE_BOX_COLLISION_SHAPE);
command->m_updateFlags |=BOX_SHAPE_HAS_HALF_EXTENTS;
command->m_createBoxShapeArguments.m_halfExtentsX = halfExtentsX;
command->m_createBoxShapeArguments.m_halfExtentsY = halfExtentsY;
command->m_createBoxShapeArguments.m_halfExtentsZ = halfExtentsZ;
return 0;
}
b3SharedMemoryCommandHandle b3CreateSensorCommandInit(b3PhysicsClientHandle physClient)

3
examples/SharedMemory/PhysicsClientC_API.h
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@@ -84,6 +84,9 @@ b3SharedMemoryCommandHandle b3CreateBoxShapeCommandInit(b3PhysicsClientHandle ph
int b3CreateBoxCommandSetStartPosition(b3SharedMemoryCommandHandle commandHandle, double startPosX,double startPosY,double startPosZ);
int b3CreateBoxCommandSetStartOrientation(b3SharedMemoryCommandHandle commandHandle, double startOrnX,double startOrnY,double startOrnZ, double startOrnW);
int b3CreateBoxCommandSetHalfExtents(b3SharedMemoryCommandHandle commandHandle, double halfExtentsX,double halfExtentsY,double halfExtentsZ);
int b3CreateBoxCommandSetMass(b3SharedMemoryCommandHandle commandHandle, double mass);
int b3CreateBoxCommandSetCollisionShapeType(b3SharedMemoryCommandHandle commandHandle, int collisionShapeType);
///Initialize (teleport) the pose of a body/robot. You can individually set the base position, base orientation and joint angles.
///This will set all velocities of base and joints to zero.

20
examples/SharedMemory/PhysicsClientExample.cpp
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@@ -194,7 +194,7 @@ void PhysicsClientExample::prepareAndSubmitCommand(int commandId)
case CMD_LOAD_URDF:
{
b3SharedMemoryCommandHandle commandHandle = b3LoadUrdfCommandInit(m_physicsClientHandle, "r2d2.urdf");//kuka_lwr/kuka.urdf");
b3SharedMemoryCommandHandle commandHandle = b3LoadUrdfCommandInit(m_physicsClientHandle, "kuka_lwr/kuka.urdf");
//setting the initial position, orientation and other arguments are optional
double startPosX = 0;
@@ -214,6 +214,19 @@ void PhysicsClientExample::prepareAndSubmitCommand(int commandId)
b3SubmitClientCommand(m_physicsClientHandle, commandHandle);
break;
}
case CMD_CREATE_RIGID_BODY:
{
b3SharedMemoryCommandHandle commandHandle = b3CreateBoxShapeCommandInit(m_physicsClientHandle);
b3CreateBoxCommandSetStartPosition(commandHandle,0,0,0);
b3CreateBoxCommandSetMass(commandHandle,1);
b3CreateBoxCommandSetCollisionShapeType(commandHandle,COLLISION_SHAPE_TYPE_CYLINDER_Y);
double radius = 0.2;
double halfHeight = 0.5;
b3CreateBoxCommandSetHalfExtents(commandHandle,radius,halfHeight,radius);
b3SubmitClientCommand(m_physicsClientHandle, commandHandle);
break;
}
case CMD_REQUEST_ACTUAL_STATE:
{
b3SharedMemoryCommandHandle commandHandle = b3RequestActualStateCommandInit(m_physicsClientHandle);
@@ -360,6 +373,7 @@ void PhysicsClientExample::createButtons()
createButton("Get State",CMD_REQUEST_ACTUAL_STATE, isTrigger);
createButton("Send Desired State",CMD_SEND_DESIRED_STATE, isTrigger);
createButton("Create Box Collider",CMD_CREATE_BOX_COLLISION_SHAPE,isTrigger);
createButton("Create Cylinder Body",CMD_CREATE_RIGID_BODY,isTrigger);
createButton("Reset Simulation",CMD_RESET_SIMULATION,isTrigger);
createButton("Initialize Pose",CMD_INIT_POSE, isTrigger);
@@ -515,8 +529,8 @@ void PhysicsClientExample::stepSimulation(float deltaTime)
{
enqueueCommand(CMD_SEND_DESIRED_STATE);
enqueueCommand(CMD_STEP_FORWARD_SIMULATION);
enqueueCommand(CMD_REQUEST_DEBUG_LINES);
enqueueCommand(CMD_REQUEST_ACTUAL_STATE);
//enqueueCommand(CMD_REQUEST_DEBUG_LINES);
//enqueueCommand(CMD_REQUEST_ACTUAL_STATE);
}
}
}

76
examples/SharedMemory/PhysicsServer.cpp
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@@ -1309,6 +1309,7 @@ void PhysicsServerSharedMemory::processClientCommands()
break;
}
case CMD_CREATE_RIGID_BODY:
case CMD_CREATE_BOX_COLLISION_SHAPE:
{
btVector3 halfExtents(1,1,1);
@@ -1339,11 +1340,82 @@ void PhysicsServerSharedMemory::processClientCommands()
clientCmd.m_createBoxShapeArguments.m_initialOrientation[3]));
}
btScalar mass = 0.f;
if (clientCmd.m_updateFlags & BOX_SHAPE_HAS_MASS)
{
mass = clientCmd.m_createBoxShapeArguments.m_mass;
}
int shapeType = COLLISION_SHAPE_TYPE_BOX;
if (clientCmd.m_updateFlags & BOX_SHAPE_HAS_COLLISION_SHAPE_TYPE)
{
shapeType = clientCmd.m_createBoxShapeArguments.m_collisionShapeType;
}
btBulletWorldImporter* worldImporter = new btBulletWorldImporter(m_data->m_dynamicsWorld);
m_data->m_worldImporters.push_back(worldImporter);
btCollisionShape* shape = worldImporter->createBoxShape(halfExtents);
btScalar mass = 0.f;
btCollisionShape* shape = 0;
switch (shapeType)
{
case COLLISION_SHAPE_TYPE_CYLINDER_X:
{
btScalar radius = halfExtents[1];
btScalar height = halfExtents[0];
shape = worldImporter->createCylinderShapeX(radius,height);
break;
}
case COLLISION_SHAPE_TYPE_CYLINDER_Y:
{
btScalar radius = halfExtents[0];
btScalar height = halfExtents[1];
shape = worldImporter->createCylinderShapeY(radius,height);
break;
}
case COLLISION_SHAPE_TYPE_CYLINDER_Z:
{
btScalar radius = halfExtents[1];
btScalar height = halfExtents[2];
shape = worldImporter->createCylinderShapeZ(radius,height);
break;
}
case COLLISION_SHAPE_TYPE_CAPSULE_X:
{
btScalar radius = halfExtents[1];
btScalar height = halfExtents[0];
shape = worldImporter->createCapsuleShapeX(radius,height);
break;
}
case COLLISION_SHAPE_TYPE_CAPSULE_Y:
{
btScalar radius = halfExtents[0];
btScalar height = halfExtents[1];
shape = worldImporter->createCapsuleShapeY(radius,height);
break;
}
case COLLISION_SHAPE_TYPE_CAPSULE_Z:
{
btScalar radius = halfExtents[1];
btScalar height = halfExtents[2];
shape = worldImporter->createCapsuleShapeZ(radius,height);
break;
}
case COLLISION_SHAPE_TYPE_SPHERE:
{
btScalar radius = halfExtents[0];
shape = worldImporter->createSphereShape(radius);
break;
}
case COLLISION_SHAPE_TYPE_BOX:
default:
{
shape = worldImporter->createBoxShape(halfExtents);
}
}
bool isDynamic = (mass>0);
worldImporter->createRigidBody(isDynamic,mass,startTrans,shape,0);
m_data->m_guiHelper->autogenerateGraphicsObjects(this->m_data->m_dynamicsWorld);

7
examples/SharedMemory/SharedMemoryCommands.h
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@@ -202,7 +202,9 @@ enum EnumBoxShapeFlags
{
BOX_SHAPE_HAS_INITIAL_POSITION=1,
BOX_SHAPE_HAS_INITIAL_ORIENTATION=2,
BOX_SHAPE_HAS_HALF_EXTENTS=4
BOX_SHAPE_HAS_HALF_EXTENTS=4,
BOX_SHAPE_HAS_MASS=8,
BOX_SHAPE_HAS_COLLISION_SHAPE_TYPE=16,
};
///This command will be replaced to allow arbitrary collision shape types
struct CreateBoxShapeArgs
@@ -211,6 +213,9 @@ struct CreateBoxShapeArgs
double m_halfExtentsY;
double m_halfExtentsZ;
double m_mass;
int m_collisionShapeType;//see SharedMemoryPublic.h
double m_initialPosition[3];
double m_initialOrientation[4];
};

17
examples/SharedMemory/SharedMemoryPublic.h
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@@ -9,8 +9,8 @@ enum EnumSharedMemoryClientCommand
CMD_SEND_BULLET_DATA_STREAM,
CMD_CREATE_BOX_COLLISION_SHAPE,
// CMD_DELETE_BOX_COLLISION_SHAPE,
// CMD_CREATE_RIGID_BODY,
// CMD_DELETE_RIGID_BODY,
CMD_CREATE_RIGID_BODY,
CMD_DELETE_RIGID_BODY,
CMD_CREATE_SENSOR,///enable or disable joint feedback for force/torque sensors
// CMD_REQUEST_SENSOR_MEASUREMENTS,//see CMD_REQUEST_ACTUAL_STATE/CMD_ACTUAL_STATE_UPDATE_COMPLETED
CMD_INIT_POSE,
@@ -57,6 +57,19 @@ enum JointInfoFlags
{
JOINT_HAS_MOTORIZED_POWER=1,
};
enum
{
COLLISION_SHAPE_TYPE_BOX=1,
COLLISION_SHAPE_TYPE_CYLINDER_X,
COLLISION_SHAPE_TYPE_CYLINDER_Y,
COLLISION_SHAPE_TYPE_CYLINDER_Z,
COLLISION_SHAPE_TYPE_CAPSULE_X,
COLLISION_SHAPE_TYPE_CAPSULE_Y,
COLLISION_SHAPE_TYPE_CAPSULE_Z,
COLLISION_SHAPE_TYPE_SPHERE
};
struct b3JointInfo
{
char* m_linkName;