concinnity_physics/
types.rs

1// concinnity-physics/src/types.rs
2//
3// The collision shapes and body parameters the simulation is asked to build.
4// Plain data in the engine's `[f32; 3]` representation: no simulation math type
5// appears here, so a caller never has to name one.
6
7/// A collision shape, in the body's local space.
8#[derive(Debug, Clone, Copy, PartialEq)]
9pub enum ColliderShape {
10    /// Box with the given half-extents along x, y, z.
11    Cuboid {
12        /// Half-extents along each axis.
13        half_extents: [f32; 3],
14    },
15    /// Sphere of the given radius.
16    Ball {
17        /// Sphere radius.
18        radius: f32,
19    },
20    /// Y-axis capsule: a cylinder of `2 * half_height` capped by hemispheres.
21    Capsule {
22        /// Half the cylindrical section's height.
23        half_height: f32,
24        /// Cap and cylinder radius.
25        radius: f32,
26    },
27}
28
29/// Physical parameters for a dynamic (freely simulated) body.
30#[derive(Debug, Clone, Copy, PartialEq)]
31pub struct DynamicParams {
32    /// Mass in kilograms. `0.0` derives mass from the shape's volume.
33    pub mass: f32,
34    /// Coulomb friction coefficient.
35    pub friction: f32,
36    /// Bounciness in `[0, 1]`.
37    pub restitution: f32,
38    /// Multiplier on the world gravity for this body.
39    pub gravity_scale: f32,
40    /// Linear velocity damping (air drag).
41    pub linear_damping: f32,
42}
concinnity_physics/types.rs

concinnity_physics/
types.rs
