good-web-game 0.6.1

An alternative implementation of the ggez game engine, based on miniquad
Documentation 
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
35
36
37

use cgmath::{BaseFloat, Matrix3, Vector2};

pub trait Transform2d<S> {
    fn from_translation(v: Vector2<S>) -> Self;
    fn from_scale(value: S) -> Self;
    fn from_nonuniform_scale(x: S, y: S) -> Self;
}

impl<S: BaseFloat> Transform2d<S> for Matrix3<S> {
    /// Create a homogeneous transformation matrix from a translation vector.
    #[inline]
    #[rustfmt::skip]
    fn from_translation(v: Vector2<S>) -> Matrix3<S> {
        Matrix3::new(
            S::one(), S::zero(), S::zero(),
            S::zero(), S::one(), S::zero(),
            v.x, v.y, S::one(),
        )
    }

    /// Create a homogeneous transformation matrix from a scale value.
    #[inline]
    fn from_scale(value: S) -> Matrix3<S> {
        Matrix3::from_nonuniform_scale(value, value)
    }

    /// Create a homogeneous transformation matrix from a set of scale values.
    #[inline]
    #[rustfmt::skip]
    fn from_nonuniform_scale(x: S, y: S) -> Matrix3<S> {
        Matrix3::new(
            x, S::zero(), S::zero(),
            S::zero(), y, S::zero(),
            S::zero(), S::zero(), S::one(),
        )
    }
}