veloren/common/src/states/glide.rs

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use crate::{
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comp::{CharacterState, StateUpdate},
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sys::character_behavior::{CharacterBehavior, JoinData},
util::Dir,
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};
use vek::Vec2;
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// Gravity is 9.81 * 4, so this makes gravity equal to .15
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const GLIDE_ANTIGRAV: f32 = crate::sys::phys::GRAVITY * 0.90;
const GLIDE_ACCEL: f32 = 12.0;
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const GLIDE_SPEED: f32 = 45.0;
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#[derive(Copy, Clone, Debug, PartialEq, Serialize, Deserialize, Eq, Hash)]
pub struct Data;
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impl CharacterBehavior for Data {
fn behavior(&self, data: &JoinData) -> StateUpdate {
let mut update = StateUpdate::from(data);
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// If glide button isn't held or player is on ground, end glide
if !data.inputs.glide.is_pressed() || data.physics.on_ground {
update.character = CharacterState::Idle;
return update;
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}
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// If there is a wall in front of character go to climb
if let Some(_) = data.physics.on_wall {
update.character = CharacterState::Climb;
return update;
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}
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// Move player according to movement direction vector
update.vel.0 += Vec2::broadcast(data.dt.0)
* data.inputs.move_dir
* if data.vel.0.magnitude_squared() < GLIDE_SPEED.powf(2.0) {
GLIDE_ACCEL
} else {
0.0
};
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// Determine orientation vector from movement direction vector
let ori_dir = Vec2::from(update.vel.0);
update.ori.0 = Dir::slerp_to_vec3(update.ori.0, ori_dir.into(), 2.0 * data.dt.0);
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// Apply Glide antigrav lift
if Vec2::<f32>::from(update.vel.0).magnitude_squared() < GLIDE_SPEED.powf(2.0)
&& update.vel.0.z < 0.0
{
let lift = GLIDE_ANTIGRAV + update.vel.0.z.abs().powf(2.0) * 0.15;
update.vel.0.z += data.dt.0
* lift
* (Vec2::<f32>::from(update.vel.0).magnitude() * 0.075)
.min(1.0)
.max(0.2);
}
update
}
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}