ranim 0.2.0

An animation engine inspired by manim and JAnim
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

use ranim::glam;
use std::f64::consts::PI;

use glam::dvec3;
use ranim::{
    anims::{
        creation::{CreationAnim, WritingAnim},
        fading::FadingAnim,
        morph::MorphAnim,
    },
    color::palettes::manim,
    items::vitem::{
        VItem,
        geometry::{Circle, Polygon, Square},
    },
    prelude::*,
    utils::rate_functions::linear,
};

#[allow(unused)]
fn pentagon() -> VItem {
    Polygon::new(
        (0..=5)
            .map(|i: i32| {
                let angle = i as f64 / 5.0 * 2.0 * PI;
                dvec3(angle.cos(), angle.sin(), 0.0) * 2.0
            })
            .collect(),
    )
    .with(|x| {
        x.set_color(manim::RED_C);
        x.with_origin(AabbPoint::CENTER, |x| {
            x.rotate_on_z(PI / 2.0);
        });
    })
    .into()
}

#[allow(unused)]
#[scene]
#[output]
fn fading(r: &mut RanimScene) {
    let _r_cam = r.insert(CameraFrame::default());
    let mut pentagon_in = pentagon().with(|x| {
        x.move_to(dvec3(0.0, 2.0, 0.0));
    });
    let mut pentagon_out = pentagon().with(|x| {
        x.move_to(dvec3(0.0, -2.0, 0.0));
    });
    let r_in = r.insert_empty();
    let r_out = r.insert_empty();
    r.timeline_mut(r_in).play(pentagon_in.fade_in());
    r.timeline_mut(r_out).play(pentagon_out.fade_out());
}

#[allow(unused)]
#[scene]
fn creation(r: &mut RanimScene) {
    let _r_cam = r.insert(CameraFrame::default());

    let mut pentagon_in = pentagon().with(|x| {
        x.move_to(dvec3(0.0, 2.0, 0.0));
    });
    let mut pentagon_out = pentagon().with(|x| {
        x.move_to(dvec3(0.0, -2.0, 0.0));
    });
    let r_in = r.insert_empty();
    let r_out = r.insert_empty();
    r.timeline_mut(r_in).play(pentagon_in.create());
    r.timeline_mut(r_out).play(pentagon_out.uncreate());
}

#[allow(unused)]
#[scene]
#[output]
fn writing(r: &mut RanimScene) {
    let _r_cam = r.insert(CameraFrame::default());
    let mut pentagon_in = pentagon().with(|x| {
        x.move_to(dvec3(0.0, 2.0, 0.0));
    });
    let mut pentagon_out = pentagon().with(|x| {
        x.move_to(dvec3(0.0, -2.0, 0.0));
    });
    let r_in = r.insert_empty();
    let r_out = r.insert_empty();
    r.timeline_mut(r_in).play(pentagon_in.write());
    r.timeline_mut(r_out).play(pentagon_out.unwrite());
}

#[allow(unused)]
#[scene]
#[output]
fn transform(r: &mut RanimScene) {
    let _r_cam = r.insert(CameraFrame::default());
    let src = Square::new(2.0).with(|x| {
        x.set_color(manim::RED_C).move_to(dvec3(0.0, 2.0, 0.0));
    });
    let dst = Circle::new(1.5).with(|x| {
        x.set_color(manim::BLUE_C).move_to(dvec3(0.0, -2.0, 0.0));
    });
    // dst.with_origin(AabbPoint::CENTER, |x| { x.rotate_on_z(PI / 4.0 + PI); }); // rotate to match src
    let r_item = r.insert_empty();
    r.timeline_mut(r_item).play(
        VItem::from(src)
            .morph_to(VItem::from(dst))
            .with_rate_func(linear),
    );
}

fn main() {
    ranim::render_scene!(fading);
    ranim::render_scene!(creation);
    ranim::render_scene!(writing);
    ranim::render_scene!(transform);
}