classicube_sys/
particle.rs

1use crate::bindings::*;
2
3pub fn Particle_DoRender(
4    size: &Vec2,
5    pos: &Vec3,
6    rec: &TextureRec,
7    col: PackedCol,
8) -> [VertexTextured; 4] {
9    let sX = size.x * 0.5;
10    let sY = size.y * 0.5;
11    let mut centre = *pos;
12    centre.y += sY;
13    let view = unsafe { &Gfx.View };
14
15    let aX = view.row1.x * sX;
16    let aY = view.row2.x * sX;
17    let aZ = view.row3.x * sX; // right * size.x * 0.5f
18    let bX = view.row1.y * sY;
19    let bY = view.row2.y * sY;
20    let bZ = view.row3.y * sY; // up    * size.y * 0.5f
21
22    [
23        VertexTextured {
24            x: centre.x - aX - bX,
25            y: centre.y - aY - bY,
26            z: centre.z - aZ - bZ,
27            Col: col,
28            U: rec.u1,
29            V: rec.v2,
30        },
31        VertexTextured {
32            x: centre.x - aX + bX,
33            y: centre.y - aY + bY,
34            z: centre.z - aZ + bZ,
35            Col: col,
36            U: rec.u1,
37            V: rec.v1,
38        },
39        VertexTextured {
40            x: centre.x + aX + bX,
41            y: centre.y + aY + bY,
42            z: centre.z + aZ + bZ,
43            Col: col,
44            U: rec.u2,
45            V: rec.v1,
46        },
47        VertexTextured {
48            x: centre.x + aX - bX,
49            y: centre.y + aY - bY,
50            z: centre.z + aZ - bZ,
51            Col: col,
52            U: rec.u2,
53            V: rec.v2,
54        },
55    ]
56}
classicube_sys/particle.rs

classicube_sys/
particle.rs
