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Fix glider pitching down when trying to take off

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This commit is contained in:
Ludvig Böklin 2021-05-01 15:35:26 +02:00
parent a37174d6f2
commit d7ef414f59
1 changed files with 27 additions and 17 deletions
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44
common/src/states/glide.rs
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@ -11,6 +11,8 @@ use serde::{Deserialize, Serialize};
use std::f32::consts::PI;
use vek::*;
const PITCH_SLOW_TIME: f32 = 0.5;
#[derive(Copy, Clone, Debug, PartialEq, Serialize, Deserialize)]
pub struct Data {
/// The aspect ratio is the ratio of the span squared to actual planform
@ -19,6 +21,7 @@ pub struct Data {
pub planform_area: f32,
pub ori: Ori,
last_vel: Vel,
timer: f32,
}
impl Data {
@ -36,23 +39,27 @@ impl Data {
planform_area,
ori,
last_vel: Vel::zero(),
timer: 0.0,
}
}
}
fn tgt_dir(data: &JoinData) -> Dir {
let look_ori = Ori::from(data.inputs.look_dir);
look_ori
.yawed_right(PI / 3.0 * look_ori.right().xy().dot(data.inputs.move_dir))
.pitched_up(PI * 0.04)
.pitched_down(
data.inputs
.look_dir
.xy()
.try_normalized()
.map_or(0.0, |ld| PI * 0.1 * ld.dot(data.inputs.move_dir)),
)
.look_dir()
fn tgt_dir(&self, data: &JoinData) -> Dir {
let look_ori = Ori::from(data.inputs.look_dir);
look_ori
.yawed_right(PI / 3.0 * look_ori.right().xy().dot(data.inputs.move_dir))
.pitched_up(PI * 0.04)
.pitched_down(
data.inputs
.look_dir
.xy()
.try_normalized()
.map_or(0.0, |ld| {
PI * 0.1 * ld.dot(data.inputs.move_dir) * self.timer.min(PITCH_SLOW_TIME)
/ PITCH_SLOW_TIME
}),
)
.look_dir()
}
}
impl CharacterBehavior for Data {
@ -86,7 +93,7 @@ impl CharacterBehavior for Data {
Dir::from_unnormalized(air_flow.0)
.map(|flow_dir| {
let tgt_dir = tgt_dir(data);
let tgt_dir = self.tgt_dir(data);
let tgt_dir_ori = Ori::from(tgt_dir);
let tgt_dir_up = tgt_dir_ori.up();
// The desired up vector of our glider.
@ -110,7 +117,9 @@ impl CharacterBehavior for Data {
})
.unwrap_or_else(Dir::up);
let global_roll = tgt_dir_up.rotation_between(tgt_up);
let global_pitch = angle_of_attack(&tgt_dir_ori, &flow_dir);
let global_pitch = angle_of_attack(&tgt_dir_ori, &flow_dir)
* self.timer.min(PITCH_SLOW_TIME)
/ PITCH_SLOW_TIME;
self.ori.slerped_towards(
tgt_dir_ori.prerotated(global_roll).pitched_up(global_pitch),
@ -145,7 +154,7 @@ impl CharacterBehavior for Data {
let accel_factor = accel.magnitude_squared().min(1.0) / 1.0;
Quaternion::rotation_3d(
PI / 2.0 * accel_factor,
PI / 2.0 * accel_factor * if data.physics.on_ground { -1.0 } else { 1.0 },
ori.up()
.cross(accel)
.try_normalized()
@ -168,6 +177,7 @@ impl CharacterBehavior for Data {
update.character = CharacterState::Glide(Self {
ori,
last_vel: *data.vel,
timer: self.timer + data.dt.0,
..*self
});
} else {