Difference between revisions of "B2.createRevoluteJointDef"
From GiderosMobile
| Line 1: | Line 1: | ||
__NOTOC__ | __NOTOC__ | ||
| − | '''Available since:''' Gideros 2011.6<br/> | + | '''<translate>Available since</translate>:''' Gideros 2011.6<br/> |
| − | === Description === | + | === <translate>Description</translate> === |
<translate><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 /> | ||
| Line 9: | Line 9: | ||
(table) = b2.createRevoluteJointDef(bodyA,bodyB,anchorx,anchory) | (table) = b2.createRevoluteJointDef(bodyA,bodyB,anchorx,anchory) | ||
</source> | </source> | ||
| − | === Parameters === | + | === <translate>Parameters</translate> === |
'''bodyA''': (b2.Body) <translate>the first attached body</translate> <br/> | '''bodyA''': (b2.Body) <translate>the first attached body</translate> <br/> | ||
'''bodyB''': (b2.Body) <translate>the second attached body</translate> <br/> | '''bodyB''': (b2.Body) <translate>the second attached body</translate> <br/> | ||
'''anchorx''': (number) <translate>the x coordinate of the world anchor point</translate> <br/> | '''anchorx''': (number) <translate>the x coordinate of the world anchor point</translate> <br/> | ||
'''anchory''': (number) <translate>the y coordinate of the world anchor point</translate> <br/> | '''anchory''': (number) <translate>the y coordinate of the world anchor point</translate> <br/> | ||
| − | === Return values === | + | === <translate>Return values</translate> === |
| − | '''Returns''' (table) <translate>A new revolute joint definition table</translate><br/> | + | '''<translate>Returns</translate>''' (table) <translate>A new revolute joint definition table</translate><br/> |
| − | === Examples === | + | === <translate>Examples</translate> === |
'''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) | ||
Revision as of 07:29, 24 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)
