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Проектная работа - WIP

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Баранов Александр Сергеевич
2026-06-04 09:32:33 +03:00
parent 75d9360007
commit a3b91cf30e
13 changed files with 149 additions and 225 deletions
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snake-game/src/observers.rs
+19 -30
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@@ -4,18 +4,12 @@ use bevy::prelude::*;
#[allow(unused)]
/// Слушатель событий [GridBarier] для хвоста, обновляющий направление его движения из ресурса [SnakePath] и позволяющий следовать за головой
pub fn tail_observer(
event: On<GridBarier>,
mut query: Query<(&mut Direction, &Transform)>,
snake_path: Res<SnakePath>,
) {
if event.observer() == event.0 {
if let Ok((mut direction, transform)) = query.get_mut(event.0) {
if let Some((x, y, new_direction)) = snake_path.pick(transform) {
trace!(
"change direction for {:?} in ({:?}, {:?}) to {:?}",
event.0, x, y, new_direction
);
pub fn tail_observer(event: On<GridBarier>, mut query: Query<(&mut Direction, &Transform)>, snake_path: Res<SnakePath>) {
let entity = event.entity;
if event.observer() == entity {
if let Ok((mut direction, transform)) = query.get_mut(event.entity) {
if let Some((position, new_direction)) = snake_path.pick(transform) {
trace!("change direction for {entity:?} in {position:?} to {new_direction:?}");
*direction = new_direction;
}
}
@@ -23,33 +17,28 @@ pub fn tail_observer(
}
/// Слушатель событий [GridBarier] для конца змеи, обновляющий направление его движения из ресурса [SnakePath] и удаляющий полученные значения из [SnakePath]
pub fn cleanup_snake_path(
event: On<GridBarier>,
mut commands: Commands,
query: Query<&Transform, With<End>>,
) {
if let Ok(transform) = query.get(event.0) {
pub fn cleanup_snake_path(event: On<GridBarier>, mut commands: Commands, query: Query<&Transform, With<End>>) {
if let Ok(transform) = query.get(event.entity) {
// trace!("schedule cleaning SnakePath for {:?}", transform);
let transform = transform.clone();
commands.queue(move |world: &mut World| {
let mut snake_path = world.resource_mut::<SnakePath>();
if let Some((x, y, dir)) = snake_path.drop(&transform) {
trace!(
"removed entry from SnakePath: ({:?}, {:?}) => {:?}\n\tsnake_path: {:?}",
x, y, dir, *snake_path
);
if let Some((pos, dir)) = snake_path.drop(&transform) {
let map = snake_path.debug();
trace!("removed entry from SnakePath: {pos:?} => {dir:?}\n\tsnake_path: {map:?}");
}
});
}
}
/// Запланировать установку скорости движения [Velocity] при следующем событии [GridBarier]
pub fn schedule_set_velocity(tail: Entity) -> impl Fn(On<GridBarier>, Commands) {
move |event: On<GridBarier>, mut commands: Commands| {
commands
.entity(tail)
.entry::<Velocity>()
.and_modify(|mut velocity| velocity.0 = SNAKE_VELOCITY as f32);
commands.entity(event.observer()).despawn();
pub fn schedule_set_velocity(tail: Entity) -> impl Fn(On<GridBarier>, Commands, Query<(&mut Velocity, &Transform)>) {
move |event: On<GridBarier>, mut commands: Commands, mut query: Query<(&mut Velocity, &Transform)>| {
if let Ok((mut velocity, transform)) = query.get_mut(tail) {
if event.dst_pos != transform.into() {
velocity.0 = SNAKE_VELOCITY as f32;
commands.entity(event.observer()).despawn();
}
}
}
}