1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29

use crate::math::{Isometry, Real};
use crate::query::sat;
use crate::shape::Cuboid;

/// Intersection test between cuboids.
#[inline]
pub fn intersection_test_cuboid_cuboid(
    pos12: &Isometry<Real>,
    cuboid1: &Cuboid,
    cuboid2: &Cuboid,
) -> bool {
    let sep1 = sat::cuboid_cuboid_find_local_separating_normal_oneway(cuboid1, cuboid2, &pos12).0;

    if sep1 > 0.0 {
        return false;
    }

    let pos21 = pos12.inverse();
    let sep2 = sat::cuboid_cuboid_find_local_separating_normal_oneway(cuboid2, cuboid1, &pos21).0;
    if sep2 > 0.0 {
        return false;
    }

    #[cfg(feature = "dim2")]
    let sep3 = -Real::MAX; // This case does not exist in 2D.
    #[cfg(feature = "dim3")]
    let sep3 = sat::cuboid_cuboid_find_local_separating_edge_twoway(cuboid1, cuboid2, &pos12).0;
    sep3 <= 0.0
}