lua.box2d.world.joint

joint=world:joint(def)

Create a joint in the world.

def contains the values that you can set in a b2jointDef and must be a unique table as it will be retained.

All of these are optional so can be nil.

Vectors are a table containing { x , y } values. This may also be a fake table created by lua meta.

Booleans should be true or false

localFrameA/B is a transform which is a vector plus a rotation in radians, so { x , y , r }

The boxid of a body ( for bodyIdA and bodyIdB ) can be found in body.boxid

bodyIdA
bodyIdB
localFrameA
localFrameB
forceThreshold
torqueThreshold
constraintHertz
constraintDampingRatio
collideConnected

if def.joint=="distance" then def also contains the values that you can set in a b2DistanceJointDef

length
enableSpring
lowerSpringForce
upperSpringForce
hertz
dampingRatio
enableLimit
minLength
maxLength
enableMotor
maxMotorForce
motorSpeed

if def.joint=="motor" then def also contains the values that you can set in a b2MotorJointDef

linearVelocity
maxVelocityForce
angularVelocity
maxVelocityTorque
linearHertz
linearDampingRatio
maxSpringForce
angularHertz
angularDampingRatio
maxSpringTorque

if def.joint=="filter" then def also contains the values that you can set in a b2FilterJointDef

-- no extra values just those found in b2jointDef

if def.joint=="prismatic" then def also contains the values that you can set in a b2PrismaticJointDef

enableSpring
hertz
dampingRatio
targetTranslation
enableLimit
lowerTranslation
upperTranslation
enableMotor
maxMotorForce
motorSpeed

if def.joint=="revolute" then def also contains the values that you can set in a b2RevoluteJointDef

targetAngle
enableSpring
hertz
dampingRatio
enableLimit
lowerAngle
upperAngle
enableMotor
maxMotorTorque
motorSpeed

if def.joint=="weld" then def also contains the values that you can set in a b2WeldJointDef

linearHertz
angularHertz
linearDampingRatio
angularDampingRatio

if def.joint=="wheel" then def also contains the values that you can set in a b2WheelJointDef

enableSpring
hertz
dampingRatio
enableLimit
lowerTranslation
upperTranslation
enableMotor
maxMotorTorque
motorSpeed