33 lines
820 B
Rust
33 lines
820 B
Rust
//! Conversion utilities
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use cgmath::{Point2, Vector2};
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use nalgebra;
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use rapier2d::dynamics::RigidBody;
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// TODO: Migrate to nalgebra fully, remove these converters
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/// Convert a rigidbody position to a position in game coordinates
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pub fn rigidbody_position(r: &RigidBody) -> cgmath::Point2<f32> {
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Point2 {
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x: r.translation()[0],
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y: r.translation()[1],
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}
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}
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/// Convert a rigidbody rotation to a rotation in game coordinates
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pub fn rigidbody_rotation(r: &RigidBody) -> Vector2<f32> {
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Vector2 {
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x: r.rotation().re,
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y: r.rotation().im,
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}
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}
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/// Convert a rigidbody velocity to a velocity in game coordinates
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pub fn rigidbody_velocity(r: &RigidBody) -> cgmath::Vector2<f32> {
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let v = r.velocity_at_point(&nalgebra::Point2::new(
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r.translation()[0],
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r.translation()[1],
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));
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Vector2 { x: v.x, y: v.y }
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}
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