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
30
31
32
33
34

use embed::{ConvertMat4, PopVariable, PushVariable};
use {
    Runtime,
    Variable,
};

/// Wraps a 4D matrix for easier embedding with Dyon.
#[derive(Debug, Copy, Clone)]
pub struct Mat4(pub [[f32; 4]; 4]);

impl ConvertMat4 for Mat4 {
    fn from(val: [[f32; 4]; 4]) -> Self { Mat4(val) }
    fn to(&self) -> [[f32; 4]; 4] { self.0 }
}

impl PopVariable for Mat4 {
    fn pop_var(rt: &Runtime, var: &Variable) -> Result<Self, String> {
        if let Variable::Mat4(ref v) = *var {
            Ok(Mat4(**v))
        } else {
            Err(rt.expected(var, "mat4"))
        }
    }
}

impl PushVariable for Mat4 {
    fn push_var(&self) -> Variable { Variable::Mat4(Box::new(self.0)) }
}

impl From<[[f32; 4]; 4]> for Mat4 {
    fn from(val: [[f32; 4]; 4]) -> Mat4 {
        Mat4(val)
    }
}