B2.DistanceJoint:setFrequency

Available since: Gideros 2011.6
Class: b2.DistanceJoint

Description

Sets the mass-spring-damper frequency in Hertz, that is the speed of oscillation also known as the harmonic motion.

b2.DistanceJoint:setFrequency(frequency)

For a rigid distance joint you would set the frequency equals to 0 and the damping equals to 1.

Parameters

frequency: (number) the mass-spring-damper frequency in Hertz (usually between 1 and 5)

Example

This is some code from an actual game ;-)

self.body.ground = self.world:createBody({})
if g_currentlevel == 1 then
	self.body.ground:setPosition(xposx, xposy)
	local jointDef = b2.createDistanceJointDef(self.body.ground, self.body, xposx, xposy - 128, xposx, xposy)
	self.body.joint = self.world:createJoint(jointDef)
	self.body.joint:setDampingRatio(0.5)
	self.body.joint:setFrequency(1.2)
end

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• B2.DistanceJoint
• B2.DistanceJoint:getDampingRatio
• B2.DistanceJoint:getFrequency
• B2.DistanceJoint:getLength
• B2.DistanceJoint:setDampingRatio
• B2.DistanceJoint:setFrequency
• B2.DistanceJoint:setLength

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LiquidFun

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