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
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182

mod alpha;
mod combomelee;
mod idle;
mod jump;
mod leapmelee;
mod ripostemelee;
mod run;
mod stunned;
mod summon;
mod swim;

// Reexports
pub use self::{
    alpha::AlphaAnimation, combomelee::ComboAnimation, idle::IdleAnimation, jump::JumpAnimation,
    leapmelee::LeapMeleeAnimation, ripostemelee::RiposteMeleeAnimation, run::RunAnimation,
    stunned::StunnedAnimation, summon::SummonAnimation, swim::SwimAnimation,
};

use common::comp::{self};

use super::{make_bone, vek::*, FigureBoneData, Offsets, Skeleton};

pub type Body = comp::crustacean::Body;

skeleton_impls!(struct CrustaceanSkeleton {
    + chest,
    + tail_f,
    + tail_b,
    + arm_l,
    + pincer_l0,
    + pincer_l1,
    + arm_r,
    + pincer_r0,
    + pincer_r1,
    + leg_fl,
    + leg_cl,
    + leg_bl,
    + leg_fr,
    + leg_cr,
    + leg_br,
});

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

    const BONE_COUNT: usize = 15;
    #[cfg(feature = "use-dyn-lib")]
    const COMPUTE_FN: &'static [u8] = b"crustacean_compute_s\0";

    #[cfg_attr(feature = "be-dyn-lib", export_name = "crustacean_compute_s")]

    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(SkeletonAttr::from(&body).scaler / 6.0);

        let chest_mat = base_mat * Mat4::<f32>::from(self.chest);
        let tail_f_mat = chest_mat * Mat4::<f32>::from(self.tail_f);
        let tail_b_mat = chest_mat * Mat4::<f32>::from(self.tail_b);
        let arm_l_mat = chest_mat * Mat4::<f32>::from(self.arm_l);
        let pincer_l0_mat = arm_l_mat * Mat4::<f32>::from(self.pincer_l0);
        let pincer_l1_mat = pincer_l0_mat * Mat4::<f32>::from(self.pincer_l1);
        let arm_r_mat = chest_mat * Mat4::<f32>::from(self.arm_r);
        let pincer_r0_mat = arm_r_mat * Mat4::<f32>::from(self.pincer_r0);
        let pincer_r1_mat = pincer_r0_mat * Mat4::<f32>::from(self.pincer_r1);
        let leg_fl_mat = chest_mat * Mat4::<f32>::from(self.leg_fl);
        let leg_cl_mat = chest_mat * Mat4::<f32>::from(self.leg_cl);
        let leg_bl_mat = chest_mat * Mat4::<f32>::from(self.leg_bl);
        let leg_fr_mat = chest_mat * Mat4::<f32>::from(self.leg_fr);
        let leg_cr_mat = chest_mat * Mat4::<f32>::from(self.leg_cr);
        let leg_br_mat = chest_mat * Mat4::<f32>::from(self.leg_br);

        *(<&mut [_; Self::BONE_COUNT]>::try_from(&mut buf[0..Self::BONE_COUNT]).unwrap()) = [
            make_bone(chest_mat),
            make_bone(tail_f_mat),
            make_bone(tail_b_mat),
            make_bone(arm_l_mat),
            make_bone(pincer_l0_mat),
            make_bone(pincer_l1_mat),
            make_bone(arm_r_mat),
            make_bone(pincer_r0_mat),
            make_bone(pincer_r1_mat),
            make_bone(leg_fl_mat),
            make_bone(leg_cl_mat),
            make_bone(leg_bl_mat),
            make_bone(leg_fr_mat),
            make_bone(leg_cr_mat),
            make_bone(leg_br_mat),
        ];

        // TODO: mount points
        //use comp::arthropod::Species::*;
        let (mount_bone_mat, mount_bone_ori) = (chest_mat, self.chest.orientation);
        // Offset from the mounted bone's origin.
        // Note: This could be its own bone if we need to animate it independently.
        let mount_position = (mount_bone_mat * Vec4::from_point(mount_point(&body)))
            .homogenized()
            .xyz();
        // NOTE: We apply the ori from base_mat externally so we don't need to worry
        // about it here for now.
        let mount_orientation = mount_bone_ori;

        Offsets {
            viewpoint: Some((chest_mat * Vec4::new(0.0, 7.0, 0.0, 1.0)).xyz()),
            mount_bone: Transform {
                position: mount_position,
                orientation: mount_orientation,
                scale: Vec3::one(),
            },
            ..Default::default()
        }
    }
}

pub struct SkeletonAttr {
    chest: (f32, f32),
    arm: (f32, f32, f32),
    leg_f: (f32, f32, f32),
    leg_c: (f32, f32, f32),
    leg_b: (f32, f32, f32),
    leg_ori: (f32, f32, f32),
    move_sideways: bool,
    scaler: f32,
}

impl<'a> From<&'a Body> for SkeletonAttr {
    fn from(body: &'a Body) -> Self {
        use comp::crustacean::Species::*;
        Self {
            chest: match (body.species, body.body_type) {
                (Crab, _) => (0.0, 0.0),
                (SoldierCrab, _) => (0.0, 0.0),
                (Karkatha, _) => (0.0, 0.0),
            },
            arm: match (body.species, body.body_type) {
                (Crab, _) => (0.0, 5.0, 0.0),
                (SoldierCrab, _) => (0.0, 5.0, 0.0),
                (Karkatha, _) => (0.0, 0.0, 0.0),
            },
            leg_f: match (body.species, body.body_type) {
                (Crab, _) => (0.0, 0.0, 0.0),
                (SoldierCrab, _) => (0.0, 0.0, 0.0),
                (Karkatha, _) => (3.0, 0.0, 0.0),
            },
            leg_c: match (body.species, body.body_type) {
                (Crab, _) => (0.0, 0.0, 0.0),
                (SoldierCrab, _) => (0.0, 0.0, 0.0),
                (Karkatha, _) => (0.0, 0.0, 0.0),
            },
            leg_b: match (body.species, body.body_type) {
                (Crab, _) => (0.0, 0.0, 0.0),
                (SoldierCrab, _) => (0.0, 0.0, 0.0),
                (Karkatha, _) => (0.0, 0.0, 0.0),
            },
            leg_ori: match (body.species, body.body_type) {
                (Crab, _) => (-0.4, 0.0, 0.4),
                (SoldierCrab, _) => (-0.4, 0.0, 0.4),
                (Karkatha, _) => (-0.4, 0.0, 0.4),
            },
            move_sideways: match (body.species, body.body_type) {
                (Crab, _) => true,
                (SoldierCrab, _) => true,
                (Karkatha, _) => false,
            },
            scaler: match (body.species, body.body_type) {
                (Crab, _) => 0.62,
                (SoldierCrab, _) => 0.62,
                (Karkatha, _) => 1.2,
            },
        }
    }
}

fn mount_point(_body: &Body) -> Vec3<f32> {
    // TODO: mount points
    //use comp::arthropod::{BodyType::*, Species::*};
    (0.0, -6.0, 6.0).into()
}