Difference between revisions of "B2.DistanceJoint"
From GiderosMobile
| (7 intermediate revisions by 2 users not shown) | |||
| Line 1: | Line 1: | ||
__NOTOC__ | __NOTOC__ | ||
<!-- GIDEROSOBJ:b2.DistanceJoint --> | <!-- GIDEROSOBJ:b2.DistanceJoint --> | ||
| − | ''' | + | '''Supported platforms:''' [[File:Platform android.png]][[File:Platform ios.png]][[File:Platform mac.png]][[File:Platform pc.png]][[File:Platform html5.png]][[File:Platform winrt.png]][[File:Platform win32.png]]<br/> |
| − | ''' | + | '''Available since:''' Gideros 2011.6<br/> |
| − | ''' | + | '''Inherits from:''' [[b2.Joint]]<br/> |
| − | === | + | |
| − | + | === Description === | |
| − | A distance joint constrains two points on two bodies to remain at a fixed distance from each other. You can view this as a massless, rigid rod. | + | A distance joint constrains two points on two bodies to remain at a fixed distance from each other. You can view this as a massless, rigid rod. |
| − | + | ||
| − | === | + | === Examples === |
| − | '''Distance joint''' | + | '''Distance joint''' |
| − | < | + | <syntaxhighlight 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)</ | + | distanceJoint:setFrequency(4) |
| + | </syntaxhighlight> | ||
| + | |||
{|- | {|- | ||
| style="width: 50%; vertical-align:top;"| | | style="width: 50%; vertical-align:top;"| | ||
| − | === | + | === Methods === |
| − | [[ | + | [[b2.DistanceJoint:getDampingRatio]] ''returns the damping ratio''<br/><!--GIDEROSMTD:b2.DistanceJoint:getDampingRatio() returns the damping ratio--> |
| − | [[ | + | [[b2.DistanceJoint:getFrequency]] ''returns the mass-spring-damper frequency in Hertz''<br/><!--GIDEROSMTD:b2.DistanceJoint:getFrequency() returns the mass-spring-damper frequency in Hertz--> |
| − | [[ | + | [[b2.DistanceJoint:getLength]] ''returns the length of this distance joint in meters''<br/><!--GIDEROSMTD:b2.DistanceJoint:getLength() returns the length of this distance joint in meters--> |
| − | [[ | + | [[b2.DistanceJoint:setDampingRatio]] ''sets the damping ratio (0 = no damping, 1 = critical damping)''<br/><!--GIDEROSMTD:b2.DistanceJoint:setDampingRatio(ratio) sets the damping ratio (0 = no damping, 1 = critical damping)--> |
| − | [[ | + | [[b2.DistanceJoint:setFrequency]] ''sets the mass-spring-damper frequency in Hertz''<br/><!--GIDEROSMTD:b2.DistanceJoint:setFrequency(frequency) sets the mass-spring-damper frequency in Hertz--> |
| − | [[ | + | [[b2.DistanceJoint:setLength]] ''sets the natural joint length in meters''<br/><!--GIDEROSMTD:b2.DistanceJoint:setLength(length) sets the natural joint length in meters--> |
| + | |||
| style="width: 50%; vertical-align:top;"| | | style="width: 50%; vertical-align:top;"| | ||
| − | === | + | === Events === |
| − | === | + | === Constants === |
|} | |} | ||
| + | |||
| + | ---- | ||
| + | *'''[[B2.Joint]]''' | ||
| + | *'''[[LiquidFun]]''' | ||
Latest revision as of 01:53, 1 December 2023
Supported platforms: 
Available since: Gideros 2011.6
Inherits from: b2.Joint
Description
A distance joint constrains two points on two bodies to remain at a fixed distance from each other. You can view this as a massless, rigid rod.
Examples
Distance joint
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)
Methodsb2.DistanceJoint:getDampingRatio returns the damping ratio |
EventsConstants |
