MouseJoint class
Pulls a body toward a target point using a spring force.
Typical use: dragging bodies with a pointer. It is a Dart joint on both backends: on the native one its force goes into the native body.
- Inheritance
-
- Object
- JointConstraint
- MouseJoint
Constructors
- MouseJoint({required PhysicsBody body, required Vector2 target, double stiffness = 500.0, double damping = 0.7, double maxForce = 50000.0})
Properties
-
bodies
→ List<
PhysicsBody> -
The bodies the joint holds; empty where it does not say.
no setteroverride
- body → PhysicsBody
-
final
- damping ↔ double
-
getter/setter pair
- hashCode → int
-
The hash code for this object.
no setterinherited
- maxForce ↔ double
-
getter/setter pair
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- stiffness ↔ double
-
getter/setter pair
- target → Vector2
-
World-space target position (update each frame to drag the body).
final
- type → JointType
-
finalinherited
Methods
-
applyConstraint(
double dt) → void -
Apply the constraint for one physics step.
override
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
setTarget(
double x, double y) → void - Move the target (call from the game loop when the pointer moves).
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited