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|
Physics Constraints (bge.constraints)
=====================================
.. module:: bge.constraints
Examples
--------
.. include:: ../examples/bge.constraints.py
:start-line: 1
:end-line: 4
.. literalinclude:: ../examples/bge.constraints.py
:lines: 6-
Functions
---------
.. function:: createConstraint( \
physicsid_1, physicsid_2, constraint_type, \
pivot_x=0.0, pivot_y=0.0, pivot_z=0.0, \
axis_x=0.0, axis_y=0.0, axis_z=0.0, flag=0)
Creates a constraint.
:arg physicsid_1: The physics id of the first object in constraint.
:type physicsid_1: int
:arg physicsid_2: The physics id of the second object in constraint.
:type physicsid_2: int
:arg constraint_type: The type of the constraint, see `Create Constraint Constants`_.
:type constraint_type: int
:arg pivot_x: Pivot X position. (optional)
:type pivot_x: float
:arg pivot_y: Pivot Y position. (optional)
:type pivot_y: float
:arg pivot_z: Pivot Z position. (optional)
:type pivot_z: float
:arg axis_x: X axis angle in degrees. (optional)
:type axis_x: float
:arg axis_y: Y axis angle in degrees. (optional)
:type axis_y: float
:arg axis_z: Z axis angle in degrees. (optional)
:type axis_z: float
:arg flag: 128 to disable collision between linked bodies. (optional)
:type flag: int
:return: A constraint wrapper.
:rtype: :class:`~bge.types.KX_ConstraintWrapper`
.. function:: exportBulletFile(filename)
Exports a file representing the dynamics world (usually using ``.bullet`` extension).
See `Bullet binary serialization <http://bulletphysics.org/mediawiki-1.5.8/index.php/Bullet_binary_serialization>`__.
:arg filename: File path.
:type filename: str
.. function:: getAppliedImpulse(constraintId)
:arg constraintId: The id of the constraint.
:type constraintId: int
:return: The most recent applied impulse.
:rtype: float
.. function:: getVehicleConstraint(constraintId)
:arg constraintId: The id of the vehicle constraint.
:type constraintId: int
:return: A vehicle constraint object.
:rtype: :class:`~bge.types.KX_VehicleWrapper`
.. function:: getCharacter(gameobj)
:arg gameobj: The game object with the character physics.
:type gameobj: :class:`~bge.types.KX_GameObject`
:return: Character wrapper.
:rtype: :class:`~bge.types.KX_CharacterWrapper`
.. function:: removeConstraint(constraintId)
Removes a constraint.
:arg constraintId: The id of the constraint to be removed.
:type constraintId: int
.. function:: setCcdMode(ccdMode)
.. note::
Very experimental, not recommended
Sets the CCD (Continous Colision Detection) mode in the Physics Environment.
:arg ccdMode: The new CCD mode.
:type ccdMode: int
.. function:: setContactBreakingTreshold(breakingTreshold)
.. note::
Reasonable default is 0.02 (if units are meters)
Sets tresholds to do with contact point management.
:arg breakingTreshold: The new contact breaking treshold.
:type breakingTreshold: float
.. function:: setDeactivationAngularTreshold(angularTreshold)
Sets the angular velocity treshold.
:arg angularTreshold: New deactivation angular treshold.
:type angularTreshold: float
.. function:: setDeactivationLinearTreshold(linearTreshold)
Sets the linear velocity treshold.
:arg linearTreshold: New deactivation linear treshold.
:type linearTreshold: float
.. function:: setDeactivationTime(time)
Sets the time after which a resting rigidbody gets deactived.
:arg time: The deactivation time.
:type time: float
.. function:: setDebugMode(mode)
Sets the debug mode.
:arg mode: The new debug mode, see `Debug Mode Constants`_.
:type mode: int
.. function:: setGravity(x, y, z)
Sets the gravity force.
:arg x: Gravity X force.
:type x: float
:arg y: Gravity Y force.
:type y: float
:arg z: Gravity Z force.
:type z: float
.. function:: setLinearAirDamping(damping)
.. note::
Not implemented
Sets the linear air damping for rigidbodies.
.. function:: setNumIterations(numiter)
Sets the number of iterations for an iterative constraint solver.
:arg numiter: New number of iterations.
:type numiter: int
.. function:: setNumTimeSubSteps(numsubstep)
Sets the number of substeps for each physics proceed. Tradeoff quality for performance.
:arg numsubstep: New number of substeps.
:type numsubstep: int
.. function:: setSolverDamping(damping)
.. note::
Very experimental, not recommended
Sets the damper constant of a penalty based solver.
:arg damping: New damping for the solver.
:type damping: float
.. function:: setSolverTau(tau)
.. note::
Very experimental, not recommended
Sets the spring constant of a penalty based solver.
:arg tau: New tau for the solver.
:type tau: float
.. function:: setSolverType(solverType)
.. note::
Very experimental, not recommended
Sets the solver type.
:arg solverType: The new type of the solver.
:type solverType: int
.. function:: setSorConstant(sor)
.. note::
Very experimental, not recommended
Sets the successive overrelaxation constant.
:arg sor: New sor value.
:type sor: float
.. function:: setUseEpa(epa)
.. note::
Not implemented
Constants
+++++++++
.. attribute:: error
Symbolic constant string that indicates error.
:type: str
Debug Mode Constants
^^^^^^^^^^^^^^^^^^^^
Debug mode to be used with :func:`setDebugMode`.
.. data:: DBG_NODEBUG
No debug.
.. data:: DBG_DRAWWIREFRAME
Draw wireframe in debug.
.. data:: DBG_DRAWAABB
Draw Axis Aligned Bounding Box in debug.
.. data:: DBG_DRAWFREATURESTEXT
Draw features text in debug.
.. data:: DBG_DRAWCONTACTPOINTS
Draw contact points in debug.
.. data:: DBG_NOHELPTEXT
Debug without help text.
.. data:: DBG_DRAWTEXT
Draw text in debug.
.. data:: DBG_PROFILETIMINGS
Draw profile timings in debug.
.. data:: DBG_ENABLESATCOMPARISION
Enable sat comparision in debug.
.. data:: DBG_DISABLEBULLETLCP
Disable Bullet LCP.
.. data:: DBG_ENABLECCD
Enable Continous Collision Detection in debug.
.. data:: DBG_DRAWCONSTRAINTS
Draw constraints in debug.
.. data:: DBG_DRAWCONSTRAINTLIMITS
Draw constraint limits in debug.
.. data:: DBG_FASTWIREFRAME
Draw a fast wireframe in debug.
Create Constraint Constants
^^^^^^^^^^^^^^^^^^^^^^^^^^^
Constraint type to be used with :func:`createConstraint`.
.. data:: POINTTOPOINT_CONSTRAINT
.. to do
.. data:: LINEHINGE_CONSTRAINT
.. to do
.. data:: ANGULAR_CONSTRAINT
.. to do
.. data:: CONETWIST_CONSTRAINT
.. to do
.. data:: VEHICLE_CONSTRAINT
.. to do
.. data:: GENERIC_6DOF_CONSTRAINT
.. to do
|