Difference between revisions of "B2.createDistanceJointDef"
From GiderosMobile
| Line 1: | Line 1: | ||
__NOTOC__ | __NOTOC__ | ||
<languages /> | <languages /> | ||
| − | ''' | + | '''Available since:''' Gideros 2011.6<br/> |
| − | ''' | + | '''Class:''' [[Special:MyLanguage/b2|b2]]<br/> |
| − | === | + | |
| − | + | === Description === | |
| − | Creates and returns a distance joint definition table with the bodies, anchors, and length using the world anchors. | + | Creates and returns a distance joint definition table with the bodies, anchors, and length using the world anchors. |
| − | (Please refer to [[b2.World:createJoint]] function for more information about all the information needed to create a distance joint). | + | |
| − | + | (Please refer to [[b2.World:createJoint]] function for more information about all the information needed to create a distance joint). | |
<source lang="lua"> | <source lang="lua"> | ||
(table) = b2.createDistanceJointDef(bodyA,bodyB,anchorAx,anchorAy,anchorBx,anchorBy) | (table) = b2.createDistanceJointDef(bodyA,bodyB,anchorAx,anchorAy,anchorBx,anchorBy) | ||
</source> | </source> | ||
| − | === | + | |
| − | '''bodyA''': (b2.Body) | + | === Parameters === |
| − | '''bodyB''': (b2.Body) | + | '''bodyA''': (b2.Body) the first attached body <br/> |
| − | '''anchorAx''': (number) | + | '''bodyB''': (b2.Body) the second attached body <br/> |
| − | '''anchorAy''': (number) | + | '''anchorAx''': (number) the x coordinate of the world anchor point of bodyA <br/> |
| − | '''anchorBx''': (number) | + | '''anchorAy''': (number) the y coordinate of the world anchor point of bodyA <br/> |
| − | '''anchorBy''': (number) | + | '''anchorBx''': (number) the x coordinate of the world anchor point of bodyB <br/> |
| − | === | + | '''anchorBy''': (number) the y coordinate of the world anchor point of bodyB <br/> |
| − | ''' | + | |
| − | === | + | === Return values === |
| − | + | '''Returns''' (table) A new distance joint definition table<br/> | |
| − | <source lang="lua">local jointDef = b2.createDistanceJointDef(body1, body2, 100, 100, 200, 100) | + | |
| + | === Examples === | ||
| + | <source lang="lua"> | ||
| + | local jointDef = b2.createDistanceJointDef(body1, body2, 100, 100, 200, 100) | ||
local distanceJoint = world:createJoint(jointDef) | local distanceJoint = world:createJoint(jointDef) | ||
| − | --by default length between two bodies is the length they have between them when joint was created | + | --by default length between two bodies is the length they have between them when joint was created but it is possilbe to change it using |
| − | |||
distanceJoint:setLength(200) | distanceJoint:setLength(200) | ||
distanceJoint:setDampingRatio(0.5) | distanceJoint:setDampingRatio(0.5) | ||
| − | distanceJoint:setFrequency(4)</source> | + | distanceJoint:setFrequency(4) |
| + | </source> | ||
| + | |||
| + | {{B2}} | ||
Revision as of 04:39, 17 February 2020
Available since: Gideros 2011.6
Class: b2
Description
Creates and returns a distance joint definition table with the bodies, anchors, and length using the world anchors.
(Please refer to b2.World:createJoint function for more information about all the information needed to create a distance joint).
(table) = b2.createDistanceJointDef(bodyA,bodyB,anchorAx,anchorAy,anchorBx,anchorBy)
Parameters
bodyA: (b2.Body) the first attached body
bodyB: (b2.Body) the second attached body
anchorAx: (number) the x coordinate of the world anchor point of bodyA
anchorAy: (number) the y coordinate of the world anchor point of bodyA
anchorBx: (number) the x coordinate of the world anchor point of bodyB
anchorBy: (number) the y coordinate of the world anchor point of bodyB
Return values
Returns (table) A new distance joint definition table
Examples
local jointDef = b2.createDistanceJointDef(body1, body2, 100, 100, 200, 100)
local distanceJoint = world:createJoint(jointDef)
--by default length between two bodies is the length they have between them when joint was created but it is possilbe to change it using
distanceJoint:setLength(200)
distanceJoint:setDampingRatio(0.5)
distanceJoint:setFrequency(4)
