hashavatar 1.1.0

Stable deterministic procedural avatars in Rust with configurable identity hashing, WebP, optional PNG/JPEG/GIF, and SVG export
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
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133

use super::*;

pub fn render_fox_avatar_for_identity(
    spec: AvatarSpec,
    identity: &AvatarIdentity,
    background: AvatarBackground,
) -> Result<RgbaImage, AvatarSpecError> {
    spec.validate()?;

    let width = spec.width as i32;
    let height = spec.height as i32;
    let center_x = width / 2;
    let center_y = (height as f32 * 0.56) as i32;
    let mut image =
        ImageBuffer::from_pixel(spec.width, spec.height, Color::rgb(255, 255, 255).into());
    let bg = hsl_to_color(22.0 + identity.unit_f32(0) * 26.0, 0.26, 0.92);
    let orange = hsl_to_color(18.0 + identity.unit_f32(1) * 20.0, 0.76, 0.58);
    let deep_orange = hsl_to_color(16.0 + identity.unit_f32(2) * 12.0, 0.72, 0.42);
    let cream = hsl_to_color(40.0 + identity.unit_f32(3) * 10.0, 0.32, 0.93);
    let eye = Color::rgb(34, 28, 24);
    let nose = Color::rgb(55, 40, 34);
    image
        .pixels_mut()
        .for_each(|pixel| *pixel = background_fill(background, bg).into());

    let head_rx = (width as f32 * (0.25 + identity.unit_f32(4) * 0.08)) as i32;
    let head_ry = (height as f32 * (0.22 + identity.unit_f32(5) * 0.08)) as i32;
    let ear_h = (height as f32 * (0.16 + identity.unit_f32(6) * 0.09)) as i32;
    let ear_w = (width as f32 * (0.12 + identity.unit_f32(7) * 0.05)) as i32;
    draw_background_accent(
        &mut image,
        center_x,
        center_y,
        head_rx,
        head_ry,
        deep_orange,
        0.35,
        background,
        identity,
    );
    draw_ear(
        &mut image,
        EarSpec::left(center_x, center_y, head_rx, head_ry, ear_w, ear_h, -0.2),
        orange,
        cream,
        deep_orange,
    );
    draw_ear(
        &mut image,
        EarSpec::right(center_x, center_y, head_rx, head_ry, ear_w, ear_h, 0.2),
        orange,
        cream,
        deep_orange,
    );
    draw_filled_ellipse_mut(
        &mut image,
        (center_x, center_y),
        head_rx,
        head_ry,
        orange.into(),
    );
    draw_filled_ellipse_mut(
        &mut image,
        (center_x, center_y + head_ry / 4),
        head_rx / 2,
        head_ry / 3,
        cream.into(),
    );
    draw_polygon_mut(
        &mut image,
        &[
            Point::new(center_x - head_rx / 2, center_y - head_ry / 8),
            Point::new(center_x, center_y + head_ry / 3),
            Point::new(center_x - head_rx / 8, center_y + head_ry / 2),
        ],
        cream.into(),
    );
    draw_polygon_mut(
        &mut image,
        &[
            Point::new(center_x + head_rx / 2, center_y - head_ry / 8),
            Point::new(center_x, center_y + head_ry / 3),
            Point::new(center_x + head_rx / 8, center_y + head_ry / 2),
        ],
        cream.into(),
    );

    let eye_y = center_y - head_ry / 7;
    let eye_offset = head_rx / 3;
    for x in [center_x - eye_offset, center_x + eye_offset] {
        draw_filled_ellipse_mut(
            &mut image,
            (x, eye_y),
            head_rx / 10,
            head_ry / 8,
            Color::rgb(255, 255, 255).into(),
        );
        draw_filled_ellipse_mut(
            &mut image,
            (x, eye_y),
            head_rx / 18,
            head_ry / 7,
            eye.into(),
        );
    }
    let nose_y = center_y + head_ry / 4;
    draw_polygon_mut(
        &mut image,
        &[
            Point::new(center_x - head_rx / 10, nose_y),
            Point::new(center_x + head_rx / 10, nose_y),
            Point::new(center_x, nose_y + head_ry / 10),
        ],
        nose.into(),
    );
    draw_smile_arc(
        &mut image,
        center_x - head_rx / 12,
        nose_y + head_ry / 10,
        head_rx / 7,
        nose,
        0.45,
    );
    draw_smile_arc(
        &mut image,
        center_x + head_rx / 12,
        nose_y + head_ry / 10,
        head_rx / 7,
        nose,
        0.45,
    );
    Ok(image)
}