class nape.constraint.PulleyJoint extends Constraint
Available on all platforms
PulleyJoint limiting the weighted sum of distances between 2 pairs of 4 local anchor points of Bodies.
*
* The equation for this constraint could be written like:
*
* jointMin <= distance(body2.localPointToWorld(anchor2), body1.localPointToWorld(anchor1)) * + ratio * distance(body4.localPointToWorld(anchor4), body3.localPointToWorld(anchor3)) <= jointMax ** This joint is not designed to work when either of these pairs achieves a distance of 0, it will still work * but may not be entirely ideal. !1*
* This constraint can be used in a full 4-body set up, or a 3-body set up or a 2-body set up permitting * any arrangement as long as body1 != body2 and body3 != body4
Instance Fields
Anchor point on first Body.
*
* This anchor point is defined in the local coordinate system of body1.
Anchor point on second Body.
*
* This anchor point is defined in the local coordinate system of body2.
Anchor point on third Body.
*
* This anchor point is defined in the local coordinate system of body3.
Anchor point on fourth Body.
*
* This anchor point is defined in the local coordinate system of body4.
First Body in constraint.
*
* This value may be null, but trying to simulate the constraint whilst
* this body is null will result in an error.
Second Body in constraint.
*
* This value may be null, but trying to simulate the constraint whilst
* this body is null will result in an error.
Third Body in constraint.
*
* This value may be null, but trying to simulate the constraint whilst
* this body is null will result in an error.
Fourth Body in constraint.
*
* This value may be null, but trying to simulate the constraint whilst
* this body is null will result in an error.
Lower bound for constraint.
*
* This value must be less than or equal to jointMax, and greater equal to 0.
function new(body1:Null<Body>, body2:Null<Body>, body3:Null<Body>, body4:Null<Body>, anchor1:Vec2, anchor2:Vec2, anchor3:Vec2, anchor4:Vec2, jointMin:Float, jointMax:Float, ?ratio:Float = 1.0f):Void
Construct a new PulleyJoint. * *
body1 | The first body in PulleyJoint. * |
body2 | The second body in PulleyJoint. * |
body3 | The third body in PulleyJoint. * |
body4 | The fourth body in PulleyJoint. * |
anchor1 | The first local anchor for joint. * |
anchor2 | The second local anchor for joint. * |
anchor3 | The third local anchor for joint. * |
anchor4 | The fourth local anchor for joint. * |
jointMin | The lower bound for constraint. * |
jointMax | The upper bound for constraint. * |
ratio | The ratio for constraint. * |
returns | The constructed PulleyJoint. |