Difference between revisions of "B2.DistanceJoint:setDampingRatio"
From GiderosMobile
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=== Description === | === Description === | ||
Sets the damping ratio of this distance joint. 0 = no damping, 1 = critical damping. | Sets the damping ratio of this distance joint. 0 = no damping, 1 = critical damping. | ||
| − | < | + | <syntaxhighlight lang="lua"> |
b2.DistanceJoint:setDampingRatio(ratio) | b2.DistanceJoint:setDampingRatio(ratio) | ||
| − | </ | + | </syntaxhighlight> |
For a rigid distance joint you would set the frequency equals to 0 and the damping equals to 1. | For a rigid distance joint you would set the frequency equals to 0 and the damping equals to 1. | ||
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=== Example === | === Example === | ||
'''This is some code from an actual game ;-)''' | '''This is some code from an actual game ;-)''' | ||
| − | < | + | <syntaxhighlight lang="lua"> |
| + | self.body.ground = self.world:createBody({}) | ||
if g_currentlevel == 2 then | if g_currentlevel == 2 then | ||
self.body.ground:setPosition(xposx, xposy) | self.body.ground:setPosition(xposx, xposy) | ||
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self.body.joint:setFrequency(1.2) | self.body.joint:setFrequency(1.2) | ||
end | end | ||
| − | </ | + | </syntaxhighlight> |
{{B2.DistanceJoint}} | {{B2.DistanceJoint}} | ||
Latest revision as of 17:14, 12 July 2023
Available since: Gideros 2011.6
Class: b2.DistanceJoint
Description
Sets the damping ratio of this distance joint. 0 = no damping, 1 = critical damping.
b2.DistanceJoint:setDampingRatio(ratio)
For a rigid distance joint you would set the frequency equals to 0 and the damping equals to 1.
Parameters
ratio: (number) the damping ratio (usually between 0 and 1)
Example
This is some code from an actual game ;-)
self.body.ground = self.world:createBody({})
if g_currentlevel == 2 then
self.body.ground:setPosition(xposx, xposy)
local jointDef = b2.createDistanceJointDef(self.body.ground, self.body, xposx + 0, xposy - 64, xposx, xposy)
self.body.joint = self.world:createJoint(jointDef)
self.body.joint:setDampingRatio(0.5)
self.body.joint:setFrequency(1.2)
end
