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
134
135
136
137
138
139
140
141
142
143

pub mod idle;
pub mod swim;

// Reexports
pub use self::{idle::IdleAnimation, swim::SwimAnimation};

use super::{make_bone, vek::*, FigureBoneData, Offsets, Skeleton};
use common::comp::{self};
use core::convert::TryFrom;

pub type Body = comp::fish_medium::Body;

skeleton_impls!(struct FishMediumSkeleton {
    + head,
    + jaw,
    + chest_front,
    + chest_back,
    + tail,
    + fin_l,
    + fin_r,
});

impl Skeleton for FishMediumSkeleton {
    type Attr = SkeletonAttr;
    type Body = Body;

    const BONE_COUNT: usize = 7;
    #[cfg(feature = "use-dyn-lib")]
    const COMPUTE_FN: &'static [u8] = b"fish_medium_compute_mats\0";

    #[cfg_attr(feature = "be-dyn-lib", export_name = "fish_medium_compute_mats")]
    fn compute_matrices_inner(
        &self,
        base_mat: Mat4<f32>,
        buf: &mut [FigureBoneData; super::MAX_BONE_COUNT],
        body: Self::Body,
    ) -> Offsets {
        let base_mat = base_mat * Mat4::scaling_3d(1.0 / 11.0);

        let chest_front_mat = base_mat * Mat4::<f32>::from(self.chest_front);
        let chest_back_mat = Mat4::<f32>::from(self.chest_back);
        let head_mat = chest_front_mat * Mat4::<f32>::from(self.head);

        *(<&mut [_; Self::BONE_COUNT]>::try_from(&mut buf[0..Self::BONE_COUNT]).unwrap()) = [
            make_bone(head_mat),
            make_bone(head_mat * Mat4::<f32>::from(self.jaw)),
            make_bone(chest_front_mat),
            make_bone(chest_front_mat * chest_back_mat),
            make_bone(chest_front_mat * chest_back_mat * Mat4::<f32>::from(self.tail)),
            make_bone(chest_front_mat * Mat4::<f32>::from(self.fin_l)),
            make_bone(chest_front_mat * Mat4::<f32>::from(self.fin_r)),
        ];
        Offsets {
            viewpoint: Some((head_mat * Vec4::new(0.0, 5.0, 0.0, 1.0)).xyz()),
            // TODO: see quadruped_medium for how to animate this
            mount_bone: Transform {
                position: comp::Body::FishMedium(body)
                    .mount_offset()
                    .into_tuple()
                    .into(),
                ..Default::default()
            },
            ..Default::default()
        }
    }
}

pub struct SkeletonAttr {
    head: (f32, f32),
    jaw: (f32, f32),
    chest_front: (f32, f32),
    chest_back: (f32, f32),
    tail: (f32, f32),
    fin: (f32, f32, f32),
    tempo: f32,
    amplitude: f32,
}

impl<'a> TryFrom<&'a comp::Body> for SkeletonAttr {
    type Error = ();

    fn try_from(body: &'a comp::Body) -> Result<Self, Self::Error> {
        match body {
            comp::Body::FishMedium(body) => Ok(SkeletonAttr::from(body)),
            _ => Err(()),
        }
    }
}

impl Default for SkeletonAttr {
    fn default() -> Self {
        Self {
            head: (0.0, 0.0),
            jaw: (0.0, 0.0),
            chest_front: (0.0, 0.0),
            chest_back: (0.0, 0.0),
            tail: (0.0, 0.0),
            fin: (0.0, 0.0, 0.0),
            tempo: 0.0,
            amplitude: 0.0,
        }
    }
}

impl<'a> From<&'a Body> for SkeletonAttr {
    fn from(body: &'a Body) -> Self {
        use comp::fish_medium::Species::*;
        Self {
            head: match (body.species, body.body_type) {
                (Marlin, _) => (2.0, 1.5),
                (Icepike, _) => (3.0, 1.0),
            },
            jaw: match (body.species, body.body_type) {
                (Marlin, _) => (2.5, -3.0),
                (Icepike, _) => (0.0, 0.0),
            },
            chest_front: match (body.species, body.body_type) {
                (Marlin, _) => (0.0, 2.5),
                (Icepike, _) => (0.0, 2.5),
            },
            chest_back: match (body.species, body.body_type) {
                (Marlin, _) => (-1.0, 1.0),
                (Icepike, _) => (-4.5, 0.0),
            },
            tail: match (body.species, body.body_type) {
                (Marlin, _) => (-7.0, 0.0),
                (Icepike, _) => (-0.5, 1.5),
            },
            fin: match (body.species, body.body_type) {
                (Marlin, _) => (2.5, 1.0, 3.5),
                (Icepike, _) => (3.5, 3.0, 0.0),
            },
            tempo: match (body.species, body.body_type) {
                (Marlin, _) => 4.0,
                (Icepike, _) => 4.0,
            },
            amplitude: match (body.species, body.body_type) {
                (Marlin, _) => 4.0,
                (Icepike, _) => 4.0,
            },
        }
    }
}