Difference between revisions of "B2.createRevoluteJointDef"
From GiderosMobile
| Line 2: | Line 2: | ||
'''Available since:''' Gideros 2011.6<br/> | '''Available since:''' Gideros 2011.6<br/> | ||
=== Description === | === Description === | ||
| − | <br /> | + | <translate><br /> |
Creates and returns a revolute joint definition table with the bodies, local anchors, and reference angle using a world anchor point.<br /> | Creates and returns a revolute joint definition table with the bodies, local anchors, and reference angle using a world anchor point.<br /> | ||
(Please refer to [[b2.World:createJoint]] function for more information about all the information needed to create a revolute joint).<br /> | (Please refer to [[b2.World:createJoint]] function for more information about all the information needed to create a revolute joint).<br /> | ||
| − | <br /> | + | <br /></translate> |
<source lang="lua"> | <source lang="lua"> | ||
(table) = b2.createRevoluteJointDef(bodyA,bodyB,anchorx,anchory) | (table) = b2.createRevoluteJointDef(bodyA,bodyB,anchorx,anchory) | ||
</source> | </source> | ||
=== Parameters === | === Parameters === | ||
| − | '''bodyA''': (b2.Body) the first attached body <br/> | + | '''bodyA''': (b2.Body) <translate>the first attached body</translate> <br/> |
| − | '''bodyB''': (b2.Body) the second attached body <br/> | + | '''bodyB''': (b2.Body) <translate>the second attached body</translate> <br/> |
| − | '''anchorx''': (number) the x coordinate of the world anchor point <br/> | + | '''anchorx''': (number) <translate>the x coordinate of the world anchor point</translate> <br/> |
| − | '''anchory''': (number) the y coordinate of the world anchor point <br/> | + | '''anchory''': (number) <translate>the y coordinate of the world anchor point</translate> <br/> |
=== Return values === | === Return values === | ||
| − | '''Returns''' (table) A new revolute joint definition table<br/> | + | '''Returns''' (table) <translate>A new revolute joint definition table</translate><br/> |
=== Examples === | === Examples === | ||
'''Example'''<br/> | '''Example'''<br/> | ||
| − | <source lang="lua">local jointdef = b2.createRevoluteJointDef(bodyA, bodyB, anchorx, anchory) | + | <source lang="lua">local jointdef = b2.createRevoluteJointDef(bodyA, bodyB, anchorx, anchory) |
| − | local joint = b2.World:createJoint(jointdef) | + | local joint = b2.World:createJoint(jointdef)</source> |
'''Revolute joint'''<br/> | '''Revolute joint'''<br/> | ||
<source lang="lua">--create empty box2d body for joint | <source lang="lua">--create empty box2d body for joint | ||
Revision as of 13:34, 23 August 2018
Available since: Gideros 2011.6
Description
Creates and returns a revolute joint definition table with the bodies, local anchors, and reference angle using a world anchor point.
(Please refer to b2.World:createJoint function for more information about all the information needed to create a revolute joint).
(table) = b2.createRevoluteJointDef(bodyA,bodyB,anchorx,anchory)
Parameters
bodyA: (b2.Body) the first attached body
bodyB: (b2.Body) the second attached body
anchorx: (number) the x coordinate of the world anchor point
anchory: (number) the y coordinate of the world anchor point
Return values
Returns (table) A new revolute joint definition table
Examples
Example
local jointdef = b2.createRevoluteJointDef(bodyA, bodyB, anchorx, anchory)
local joint = b2.World:createJoint(jointdef)
Revolute joint
--create empty box2d body for joint
local ground = world:createBody({})
ground:setPosition(300, 480)
local jointDef = b2.createRevoluteJointDef(body, ground, 300, 300)
local revoluteJoint = world:createJoint(jointDef)
--will not let ball spin for ever
revoluteJoint:setMaxMotorTorque(1)
revoluteJoint:enableMotor(true)
