Difference between revisions of "B2.createPrismaticJointDef"
From GiderosMobile
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__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 prismatic joint definition table with the bodies, anchors, axis, and reference angle using the world anchor and world axis.<br /> | Creates and returns a prismatic joint definition table with the bodies, anchors, axis, and reference angle using the world anchor and world axis.<br /> | ||
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(table) = b2.createPrismaticJointDef(bodyA,bodyB,anchorx,anchory,axisx,axisy) | (table) = b2.createPrismaticJointDef(bodyA,bodyB,anchorx,anchory,axisx,axisy) | ||
</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/> | ||
| Line 16: | Line 16: | ||
'''axisx''': (number) <translate>the x coordinate of the world axis</translate> <br/> | '''axisx''': (number) <translate>the x coordinate of the world axis</translate> <br/> | ||
'''axisy''': (number) <translate>the y coordinate of the world axis</translate> <br/> | '''axisy''': (number) <translate>the y coordinate of the world axis</translate> <br/> | ||
| − | === Return values === | + | === <translate>Return values</translate> === |
| − | '''Returns''' (table) <translate>A new prismatic joint definition table</translate><br/> | + | '''<translate>Returns</translate>''' (table) <translate>A new prismatic joint definition table</translate><br/> |
| − | === Examples === | + | === <translate>Examples</translate> === |
'''Prismatic joint'''<br/> | '''Prismatic joint'''<br/> | ||
<source lang="lua">--create empty box2d body for joint | <source lang="lua">--create empty box2d body for joint | ||
Revision as of 08:27, 24 August 2018
Available since: Gideros 2011.6
Description
Creates and returns a prismatic joint definition table with the bodies, anchors, axis, and reference angle using the world anchor and world axis.
(Please refer to b2.World:createJoint function for more information about all the information needed to create a prismatic joint).
(table) = b2.createPrismaticJointDef(bodyA,bodyB,anchorx,anchory,axisx,axisy)
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
axisx: (number) the x coordinate of the world axis
axisy: (number) the y coordinate of the world axis
Return values
Returns (table) A new prismatic joint definition table
Examples
Prismatic joint
--create empty box2d body for joint
local ground = world:createBody({})
ground:setPosition(465, 480)
--axisx, axisy values usually between 0 and 1
--0 0 moves freely
--0 1 moves on y axis
--1 0 moves on x axis
--1 1 moves on diagonal
local jointDef = b2.createPrismaticJointDef(body, ground, 350, 100, 0.3, 1)
local prismaticJoint = world:createJoint(jointDef)
