concinnity_core/components/
transform.rs

1// src/components/transform.rs
2
3/// World-space placement of an entity: translation, rotation, and scale.
4///
5/// Runtime-only placement state. Physics and interaction systems mutate it and
6/// the renderer reads it to position draws. Not authored directly in a world
7/// file; it carries the same transform fields a `Prop` declares.
8#[derive(Debug, Clone, Copy)]
9pub struct Transform {
10    /// World-space position [x, y, z].
11    pub position: [f32; 3],
12    /// Euler rotation in degrees [pitch, yaw, roll], applied in YXZ order.
13    pub rotation_deg: [f32; 3],
14    /// Non-uniform scale [x, y, z].
15    pub scale: [f32; 3],
16}
17
18impl Default for Transform {
19    fn default() -> Self {
20        Self {
21            position: [0.0, 0.0, 0.0],
22            rotation_deg: [0.0, 0.0, 0.0],
23            scale: [1.0, 1.0, 1.0],
24        }
25    }
26}
27
28impl Transform {
29    /// Build a column-major model matrix from this transform.
30    /// Order: scale, then YXZ Euler rotation, then translation.
31    pub fn model_matrix(&self) -> [[f32; 4]; 4] {
32        crate::gfx::transform::trs_matrix(self.position, self.rotation_deg, self.scale)
33    }
34}
concinnity_core/components/transform.rs

concinnity_core/components/
transform.rs
