Difference between revisions of "B2.createFrictionJointDef"
From GiderosMobile
| Line 9: | Line 9: | ||
(table) = b2.createFrictionJointDef(bodyA,bodyB,anchorx,anchory) | (table) = b2.createFrictionJointDef(bodyA,bodyB,anchorx,anchory) | ||
</source> | </source> | ||
| − | '''bodyA''': (b2.Body) the first attached body | + | === Parameters === |
| − | '''bodyB''': (b2.Body) the second attached body | + | '''bodyA''': (b2.Body) the first attached body <br/> |
| − | '''anchorx''': (number) the x coordinate of the world anchor point | + | '''bodyB''': (b2.Body) the second attached body <br/> |
| − | '''anchory''': (number) the y coordinate of the world anchor point | + | '''anchorx''': (number) the x coordinate of the world anchor point <br/> |
| + | '''anchory''': (number) the y coordinate of the world anchor point <br/> | ||
| + | === Return values === | ||
'''Returns''' (table) A new friction joint definition table<br/> | '''Returns''' (table) A new friction joint definition table<br/> | ||
| + | === Examples === | ||
| + | '''Friction joint'''<br/> | ||
| + | <source lang="lua">--create empty box2d body for joint | ||
| + | local ground = world:createBody({}) | ||
| + | ground:setPosition(350, 480) | ||
| + | |||
| + | --create friction joint | ||
| + | local jointDef = b2.createFrictionJointDef(body, ground, 350, 200) | ||
| + | local frictionJoint = world:createJoint(jointDef) | ||
| + | |||
| + | --set maximum friction force to slow down the ball | ||
| + | frictionJoint:setMaxForce(100)</source> | ||
Revision as of 10:41, 23 August 2018
Available since: Gideros 2011.6
Description
Creates and returns a friction joint definition table with the bodies and local anchors using a world anchor point.
(Please refer to b2.World:createJoint function for more information about all the information needed to create a friction joint).
(table) = b2.createFrictionJointDef(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 friction joint definition table
Examples
Friction joint
--create empty box2d body for joint
local ground = world:createBody({})
ground:setPosition(350, 480)
--create friction joint
local jointDef = b2.createFrictionJointDef(body, ground, 350, 200)
local frictionJoint = world:createJoint(jointDef)
--set maximum friction force to slow down the ball
frictionJoint:setMaxForce(100)
