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
183
184
185
186
187
188
189
190
191
192
193
194

use super::{
    super::{vek::*, Animation},
    CharacterSkeleton, SkeletonAttr,
};
use common::comp::item::{Hands, ToolKind};
use core::{f32::consts::PI, ops::Mul};

pub struct SwimAnimation;

type SwimAnimationDependency = (
    Option<ToolKind>,
    Option<ToolKind>,
    (Option<Hands>, Option<Hands>),
    Vec3<f32>,
    Vec3<f32>,
    Vec3<f32>,
    f32,
    Vec3<f32>,
);

impl Animation for SwimAnimation {
    type Dependency<'a> = SwimAnimationDependency;
    type Skeleton = CharacterSkeleton;

    #[cfg(feature = "use-dyn-lib")]
    const UPDATE_FN: &'static [u8] = b"character_swim\0";

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

    fn update_skeleton_inner(
        skeleton: &Self::Skeleton,
        (
            active_tool_kind,
            second_tool_kind,
            hands,
            velocity,
            orientation,
            last_ori,
            global_time,
            avg_vel,
        ): Self::Dependency<'_>,
        anim_time: f32,
        rate: &mut f32,
        s_a: &SkeletonAttr,
    ) -> Self::Skeleton {
        let mut next = (*skeleton).clone();
        let avgspeed = Vec2::<f32>::from(avg_vel).magnitude();

        let avgtotal = avg_vel.magnitude();

        let speed = velocity.magnitude();
        *rate = 1.0;
        let tempo = if speed > 0.5 { 1.5 } else { 0.7 };
        let intensity = if speed > 0.5 { 1.0 } else { 0.3 };

        let lab: f32 = 1.0 * tempo;

        let short = (anim_time * lab * 6.0 + PI * 0.9).sin();

        let foot = (anim_time * lab * 6.0 + PI * -0.1).sin();

        let footrotl = ((1.0 / (0.2 + (0.8) * ((anim_time * 6.0 * lab + PI * 1.4).sin()).powi(2)))
            .sqrt())
            * ((anim_time * 6.0 * lab + PI * 1.4).sin());

        let footrotr = ((1.0 / (0.2 + (0.8) * ((anim_time * 6.0 * lab + PI * 0.4).sin()).powi(2)))
            .sqrt())
            * ((anim_time * 6.0 * lab + PI * 0.4).sin());

        let foothoril = (anim_time * 6.0 * lab + PI * 1.4).sin();
        let foothorir = (anim_time * 6.0 * lab + PI * (0.4)).sin();
        let head_look = Vec2::new(
            (global_time + anim_time / 4.0 * (1.0 / tempo))
                .floor()
                .mul(7331.0)
                .sin()
                * 0.2,
            (global_time + anim_time / 4.0 * (1.0 / tempo))
                .floor()
                .mul(1337.0)
                .sin()
                * 0.1,
        );
        let ori: Vec2<f32> = Vec2::from(orientation);
        let last_ori = Vec2::from(last_ori);
        let tilt = if vek::Vec2::new(ori, last_ori)
            .map(|o| o.magnitude_squared())
            .map(|m| m > 0.001 && m.is_finite())
            .reduce_and()
            && ori.angle_between(last_ori).is_finite()
        {
            ori.angle_between(last_ori).min(0.8)
                * last_ori.determine_side(Vec2::zero(), ori).signum()
        } else {
            0.0
        } * 1.3;
        let abstilt = tilt.abs();

        let squash = if abstilt > 0.2 { 0.35 } else { 1.0 }; //condenses the body at strong turns
        next.head.position = Vec3::new(0.0, s_a.head.0, s_a.head.1 - 1.0 + short * 0.3);
        next.head.orientation =
            Quaternion::rotation_z(head_look.x * 0.3 + short * -0.2 * intensity + tilt * 3.0)
                * Quaternion::rotation_x(
                    (0.4 * head_look.y * (1.0 / intensity)).abs()
                        + 0.45 * intensity
                        + velocity.z * 0.03
                        - (abstilt * 1.8).min(0.0),
                );
        next.head.scale = Vec3::one() * s_a.head_scale;

        next.chest.position = Vec3::new(
            0.0,
            s_a.chest.0,
            -10.0 + s_a.chest.1 + short * 0.3 * intensity,
        );
        next.chest.orientation = Quaternion::rotation_z(short * 0.1 * intensity);

        next.belt.position = Vec3::new(0.0, s_a.belt.0, s_a.belt.1);
        next.belt.orientation = Quaternion::rotation_x(velocity.z.abs() * -0.005 + abstilt * 1.0)
            * Quaternion::rotation_z(short * -0.2 * intensity);

        next.back.position = Vec3::new(0.0, s_a.back.0, s_a.back.1);
        next.back.scale = Vec3::one() * 1.02;

        next.shorts.position = Vec3::new(0.0, s_a.shorts.0, s_a.shorts.1);
        next.shorts.orientation = Quaternion::rotation_x(velocity.z.abs() * -0.005 + abstilt * 1.0)
            * Quaternion::rotation_z(short * -0.3 * intensity);

        next.hand_l.position = Vec3::new(
            -1.0 - s_a.hand.0,
            1.5 + s_a.hand.1 - foot * 2.0 * intensity * squash,
            intensity * 5.0 + s_a.hand.2 + foot * -5.0 * intensity * squash,
        );
        next.hand_l.orientation = Quaternion::rotation_x(1.5 + foot * -1.2 * intensity * squash)
            * Quaternion::rotation_y(0.4 + foot * -0.35);
        next.hand_l.scale = Vec3::one() * 1.04;

        next.hand_r.position = Vec3::new(
            1.0 + s_a.hand.0,
            1.5 + s_a.hand.1 + foot * 2.0 * intensity * squash,
            intensity * 5.0 + s_a.hand.2 + foot * 5.0 * intensity * squash,
        );
        next.hand_r.orientation = Quaternion::rotation_x(1.5 + foot * 1.2 * intensity * squash)
            * Quaternion::rotation_y(-0.4 + foot * -0.35);
        next.hand_r.scale = Vec3::one() * 1.04;

        next.foot_l.position = Vec3::new(
            -s_a.foot.0,
            s_a.foot.1 + foothoril * 1.5 * intensity * squash,
            -10.0 + s_a.foot.2 + footrotl * 3.0 * intensity * squash,
        );
        next.foot_l.orientation =
            Quaternion::rotation_x(-0.8 * squash + footrotl * 0.4 * intensity * squash);

        next.foot_r.position = Vec3::new(
            s_a.foot.0,
            s_a.foot.1 + foothorir * 1.5 * intensity * squash,
            -10.0 + s_a.foot.2 + footrotr * 3.0 * intensity * squash,
        );
        next.foot_r.orientation =
            Quaternion::rotation_x(-0.8 * squash + footrotr * 0.4 * intensity * squash);

        next.shoulder_l.position = Vec3::new(-s_a.shoulder.0, s_a.shoulder.1, s_a.shoulder.2);
        next.shoulder_l.orientation = Quaternion::rotation_x(short * 0.15 * intensity);
        next.shoulder_l.scale = Vec3::one() * 1.1;

        next.shoulder_r.position = Vec3::new(s_a.shoulder.0, s_a.shoulder.1, s_a.shoulder.2);
        next.shoulder_r.orientation = Quaternion::rotation_x(short * -0.15 * intensity);
        next.shoulder_r.scale = Vec3::one() * 1.1;

        next.glider.position = Vec3::new(0.0, 0.0, 10.0);
        next.glider.scale = Vec3::one() * 0.0;

        next.do_tools_on_back(hands, active_tool_kind, second_tool_kind);

        next.lantern.position = Vec3::new(s_a.lantern.0, s_a.lantern.1, s_a.lantern.2);
        next.lantern.scale = Vec3::one() * 0.65;
        next.hold.scale = Vec3::one() * 0.0;

        let switch = if avg_vel.z > 0.0 && avgspeed < 0.5 {
            avgtotal.min(0.5)
        } else {
            avgtotal
        };
        next.torso.position = Vec3::new(0.0, 0.0, 11.0 - avgspeed * 0.55);
        next.torso.orientation = Quaternion::rotation_x(
            (((1.0 / switch) * PI / 2.0 + avg_vel.z * 0.12).min(PI / 2.0) - PI / 2.0)
                + avgspeed * avg_vel.z * -0.003,
        ) * Quaternion::rotation_y(tilt * 2.0)
            * Quaternion::rotation_z(tilt * 3.0);

        next
    }
}