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Merge pull request #8 from Bendzae/replicon-0.25.2
Upgrade to Replicon 0.25.3
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,94 @@ | ||
| use std::collections::VecDeque; | ||
|
|
||
| use bevy::{ | ||
| ecs::{ | ||
| component::Component, | ||
| query::{With, Without}, | ||
| system::{Query, Res, Resource}, | ||
| }, | ||
| reflect::Reflect, | ||
| time::Time, | ||
| }; | ||
| use serde::{Deserialize, Serialize}; | ||
|
|
||
| use crate::prediction::Predicted; | ||
|
|
||
| pub trait Interpolate { | ||
| fn interpolate(&self, other: Self, t: f32) -> Self; | ||
| } | ||
|
|
||
| #[derive(Component, Deserialize, Serialize, Reflect)] | ||
| pub struct Interpolated; | ||
|
|
||
| #[derive(Deserialize, Serialize, Reflect)] | ||
| pub struct Snapshot<T: Component + Interpolate + Clone> { | ||
| tick: u32, | ||
| value: T, | ||
| } | ||
|
|
||
| #[derive(Component, Deserialize, Serialize, Reflect)] | ||
| pub struct SnapshotBuffer<T: Component + Interpolate + Clone> { | ||
| pub buffer: VecDeque<T>, | ||
| pub time_since_last_snapshot: f32, | ||
| pub latest_snapshot_tick: u32, | ||
| } | ||
|
|
||
| #[derive(Resource, Serialize, Deserialize, Debug)] | ||
| pub struct SnapshotInterpolationConfig { | ||
| pub max_tick_rate: u16, | ||
| } | ||
|
|
||
| impl<T: Component + Interpolate + Clone> SnapshotBuffer<T> { | ||
| pub fn new() -> Self { | ||
| Self { | ||
| buffer: VecDeque::new(), | ||
| time_since_last_snapshot: 0.0, | ||
| latest_snapshot_tick: 0, | ||
| } | ||
| } | ||
| pub fn insert(&mut self, element: T, tick: u32) { | ||
| if self.buffer.len() > 1 { | ||
| self.buffer.pop_front(); | ||
| } | ||
| self.buffer.push_back(element); | ||
| self.time_since_last_snapshot = 0.0; | ||
| self.latest_snapshot_tick = tick; | ||
| } | ||
|
|
||
| pub fn latest_snapshot(&self) -> T { | ||
| self.buffer.iter().last().unwrap().clone() | ||
| } | ||
|
|
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| pub fn latest_snapshot_tick(&self) -> u32 { | ||
| self.latest_snapshot_tick | ||
| } | ||
|
|
||
| pub fn age(&self) -> f32 { | ||
| self.time_since_last_snapshot | ||
| } | ||
| } | ||
|
|
||
| /// Interpolate between snapshots. | ||
| pub fn snapshot_interpolation_system<T: Component + Interpolate + Clone>( | ||
| mut q: Query<(&mut T, &mut SnapshotBuffer<T>), (With<Interpolated>, Without<Predicted>)>, | ||
| time: Res<Time>, | ||
| config: Res<SnapshotInterpolationConfig>, | ||
| ) { | ||
| for (mut component, mut snapshot_buffer) in q.iter_mut() { | ||
| let buffer = &snapshot_buffer.buffer; | ||
| let elapsed = snapshot_buffer.time_since_last_snapshot; | ||
| if buffer.len() < 2 { | ||
| continue; | ||
| } | ||
|
|
||
| let tick_duration = 1.0 / (config.max_tick_rate as f32); | ||
|
|
||
| if elapsed > tick_duration + time.delta_seconds() { | ||
| continue; | ||
| } | ||
|
|
||
| let t = (elapsed / tick_duration).clamp(0., 1.); | ||
| *component = buffer[0].interpolate(buffer[1].clone(), t); | ||
| snapshot_buffer.time_since_last_snapshot += time.delta_seconds(); | ||
| } | ||
| } |
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