DistanceJointBuilder

boxdd::joints

Struct DistanceJointBuilder 

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pub struct DistanceJointBuilder<'w> { /* private fields */ }
Expand description

Fluent builder for distance joints working in world space.

Use anchors_world and length_from_world_points to configure anchors and target length without manually computing local frames.

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impl<'w> DistanceJointBuilder<'w>

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pub fn anchors_world<VA: Into<Vec2>, VB: Into<Vec2>>(self, a: VA, b: VB) -> Self

Set world-space anchors for A and B.

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pub fn length(self, len: f32) -> Self

Set desired distance (meters).

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pub fn length_from_world_points<VA: Into<Vec2>, VB: Into<Vec2>>( self, a: VA, b: VB, ) -> Self

Compute desired distance from two world points.

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pub fn limit(self, min_len: f32, max_len: f32) -> Self

Enable limits with minimum/maximum length (meters).

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pub fn motor(self, max_force: f32, speed: f32) -> Self

Enable motor with maximum force (N) and speed (m/s).

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pub fn spring(self, hertz: f32, damping_ratio: f32) -> Self

Enable spring with stiffness (Hz) and damping ratio.

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pub fn collide_connected(self, flag: bool) -> Self

Allow bodies to collide while connected.

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pub fn with_limit_and_motor( self, min_len: f32, max_len: f32, max_force: f32, speed: f32, ) -> Self

Enable limits and motor together.

  • min_len/max_len: meters
  • max_force: Newtons
  • speed: meters/second
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pub fn with_limit_and_spring( self, min_len: f32, max_len: f32, hertz: f32, damping_ratio: f32, ) -> Self

Enable limits and spring together.

  • min_len/max_len: meters
  • hertz: stiffness (Hz), typical 4–20
  • damping_ratio: [0, 1], typical 0.1–0.7
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pub fn with_motor_and_spring( self, max_force: f32, speed: f32, hertz: f32, damping_ratio: f32, ) -> Self

Enable motor and spring together.

  • max_force: Newtons
  • speed: meters/second
  • hertz: stiffness (Hz), typical 4–20
  • damping_ratio: [0, 1], typical 0.1–0.7
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pub fn with_limit_motor_spring( self, min_len: f32, max_len: f32, max_force: f32, speed: f32, hertz: f32, damping_ratio: f32, ) -> Self

Enable limit, motor, and spring together.

  • min_len/max_len: meters
  • max_force: Newtons
  • speed: meters/second
  • hertz: stiffness (Hz), typical 4–20
  • damping_ratio: [0, 1], typical 0.1–0.7
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pub fn build(self) -> Joint<'w>

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pub fn try_build(self) -> ApiResult<Joint<'w>>

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pub fn build_owned(self) -> OwnedJoint

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pub fn try_build_owned(self) -> ApiResult<OwnedJoint>

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