Difference between revisions of "B2.createPrismaticJointDef"

From GiderosMobile
(5 intermediate revisions by one other user not shown)
Line 1: Line 1:
 
__NOTOC__
 
__NOTOC__
 +
<languages />
 
'''Available since:''' Gideros 2011.6<br/>
 
'''Available since:''' Gideros 2011.6<br/>
 +
'''Class:''' [[Special:MyLanguage/b2|b2]]<br/>
 +
 
=== Description ===
 
=== Description ===
<br />
+
Creates and returns a prismatic joint definition table with the bodies, anchors, axis, and reference angle using the world anchor and world axis.
Creates and returns a prismatic joint definition table with the bodies, anchors, axis, and reference angle using the world anchor and world axis.<br />
+
 
(Please refer to [[b2.World:createJoint]] function for more information about all the information needed to create a prismatic joint).<br />
+
(Please refer to [[b2.World:createJoint]] function for more information about all the information needed to create a prismatic joint).
<br />
 
 
<source lang="lua">
 
<source lang="lua">
 
(table) = b2.createPrismaticJointDef(bodyA,bodyB,anchorx,anchory,axisx,axisy)
 
(table) = b2.createPrismaticJointDef(bodyA,bodyB,anchorx,anchory,axisx,axisy)
 
</source>
 
</source>
'''bodyA''': (b2.Body) the first attached body ''''''<br/>
+
 
'''bodyB''': (b2.Body) the second attached body ''''''<br/>
+
=== Parameters ===
'''anchorx''': (number) the x coordinate of the world anchor point ''''''<br/>
+
'''bodyA''': (b2.Body) the first attached body <br/>
'''anchory''': (number) the y coordinate of the world anchor point ''''''<br/>
+
'''bodyB''': (b2.Body) the second attached body <br/>
'''axisx''': (number) the x coordinate of the world axis ''''''<br/>
+
'''anchorx''': (number) the x coordinate of the world anchor point <br/>
'''axisy''': (number) the y coordinate of the world axis ''''''<br/>
+
'''anchory''': (number) the y coordinate of the world anchor point <br/>
 +
'''axisx''': (number) the x coordinate of the world axis <br/>
 +
'''axisy''': (number) the y coordinate of the world axis <br/>
 +
 
 +
=== Return values ===
 
'''Returns''' (table) A new prismatic joint definition table<br/>
 
'''Returns''' (table) A new prismatic joint definition table<br/>
 +
 +
=== Examples ===
 +
<source lang="lua">
 +
--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)
 +
</source>
 +
 +
{{B2}}

Revision as of 04:50, 17 February 2020


Available since: Gideros 2011.6
Class: b2

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

--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)





LiquidFun