veloren/voxygen/anim/src/biped_large/dash.rs

use super::{
    super::{vek::*, Animation},
    BipedLargeSkeleton, SkeletonAttr,
};
use common::{comp::item::ToolKind, states::utils::StageSection};
use std::f32::consts::PI;

pub struct DashAnimation;

impl Animation for DashAnimation {
    type Dependency = (
        Option<ToolKind>,
        Option<ToolKind>,
        Vec3<f32>,
        f64,
        Option<StageSection>,
        f32,
    );
    type Skeleton = BipedLargeSkeleton;

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

    #[cfg_attr(feature = "be-dyn-lib", export_name = "biped_large_dash")]
    #[allow(clippy::single_match)] // TODO: Pending review in #587
    fn update_skeleton_inner(
        skeleton: &Self::Skeleton,
        (_active_tool_kind, _second_tool_kind, velocity, _global_time, stage_section, acc_vel): Self::Dependency,
        anim_time: f64,
        rate: &mut f32,
        s_a: &SkeletonAttr,
    ) -> Self::Skeleton {
        *rate = 1.0;
        let mut next = (*skeleton).clone();
        let lab = 0.65 * s_a.tempo;
        let speed = Vec2::<f32>::from(velocity).magnitude();

        let speednorm = (speed / 12.0).powf(0.4);
        let foothoril = (acc_vel * lab as f32 + PI * 1.45).sin() * speednorm;
        let foothorir = (acc_vel * lab as f32 + PI * (0.45)).sin() * speednorm;
        let footrotl =
            (((1.0) / (0.5 + (0.5) * ((acc_vel * lab as f32 + PI * 1.4).sin()).powi(2))).sqrt())
                * ((acc_vel * lab as f32 + PI * 1.4).sin());

        let footrotr =
            (((1.0) / (0.5 + (0.5) * ((acc_vel * lab as f32 + PI * 0.4).sin()).powi(2))).sqrt())
                * ((acc_vel * lab as f32 + PI * 0.4).sin());

        next.main.position = Vec3::new(0.0, 0.0, 0.0);
        next.main.orientation = Quaternion::rotation_x(0.0);

        next.hand_l.position = Vec3::new(0.0, 0.0, s_a.grip);
        next.hand_r.position = Vec3::new(0.0, 0.0, s_a.grip);

        next.hand_l.orientation = Quaternion::rotation_x(0.0);
        next.hand_r.orientation = Quaternion::rotation_x(0.0);
        let (move1base, move2base, move3base, move4) = match stage_section {
            Some(StageSection::Buildup) => ((anim_time as f32).powf(0.25), 0.0, 0.0, 0.0),
            Some(StageSection::Charge) => (1.0, ((anim_time as f32).powf(4.0)).min(1.0), 0.0, 0.0),
            Some(StageSection::Swing) => (1.0, 1.0, anim_time as f32, 0.0),
            Some(StageSection::Recover) => (1.1, 1.0, 1.0, (anim_time as f32).powf(4.0)),
            _ => (0.0, 0.0, 0.0, 0.0),
        };
        let pullback = 1.0 - move4;
        let move1 = move1base * pullback;
        let move2 = move2base * pullback;
        let move3 = move3base * pullback;

        next.shoulder_l.position = Vec3::new(
            -s_a.shoulder.0,
            s_a.shoulder.1,
            s_a.shoulder.2 - foothorir * 1.0,
        );
        next.shoulder_l.orientation =
            Quaternion::rotation_x(0.6 * speednorm + (footrotr * -0.2) * speednorm);

        next.shoulder_r.position = Vec3::new(
            s_a.shoulder.0,
            s_a.shoulder.1,
            s_a.shoulder.2 - foothoril * 1.0,
        );
        next.shoulder_r.orientation =
            Quaternion::rotation_x(0.6 * speednorm + (footrotl * -0.2) * speednorm);
        next.torso.orientation = Quaternion::rotation_z(0.0);

        next.control_l.position = Vec3::new(-1.0, 1.0, 1.0);
        next.control_r.position = Vec3::new(0.0, 2.0, -3.0);
        next.head.orientation = Quaternion::rotation_x(move1 * -0.25)
            * Quaternion::rotation_z(move1 * -0.2 + move2 * 0.6);
        next.control.position = Vec3::new(
            -3.0 + move1 * -2.0 + move2 * 2.0,
            5.0 + s_a.grip / 1.2 + move1 * -4.0 + move2 * 2.0 + move3 * 8.0,
            -4.0 + -s_a.grip / 2.0 + move2 * -5.0 + move3 * 5.0,
        );
        next.upper_torso.orientation = Quaternion::rotation_x(move2 * -0.2 + move3 * 0.2)
            * Quaternion::rotation_z(move1 * 0.8 + move3 * -0.7);
        next.lower_torso.orientation = Quaternion::rotation_x(move2 * 0.2 + move3 * -0.2)
            * Quaternion::rotation_z(move1 * -0.8 + move3 * 0.7);
        next.control_l.orientation = Quaternion::rotation_x(PI / 2.0 + move1 * -0.5 + move2 * 1.5)
            * Quaternion::rotation_y(-0.2);
        next.control_r.orientation = Quaternion::rotation_x(PI / 2.2 + move1 * -0.5 + move2 * 1.5)
            * Quaternion::rotation_y(0.2)
            * Quaternion::rotation_z(0.0);

        next.control.orientation =
            Quaternion::rotation_x(-0.2 + move1 * 0.5 + move2 * -1.5 + move3 * -0.2)
                * Quaternion::rotation_y(-0.1 + move1 * -0.5 + move2 * 1.5 + move3 * -1.0)
                * Quaternion::rotation_z(-move3 * -1.5);

        next
    }
}