Проектная работа - WIP

2026-06-07 15:32:05 +03:00
parent 5cc62bc430
commit 45502cceaf
8 changed files with 60 additions and 4 deletions
@@ -2,7 +2,7 @@

 use bevy::prelude::*;

-use crate::domain::GridBarier;
+use crate::domain::{GridBarier, GrowUp};

 /// вывод всех сущностей мира
 pub fn print_all_entities(mut commands: Commands, query: Query<Entity>) {
@@ -102,3 +102,10 @@ pub fn trace_snake_moving(e: On<GridBarier>) {
    let direction = e.direction;
    trace!("...<{entity:?}> is moving on {position} {direction:?}");
 }
+
+/// событие [GrowUp] по нажатию Tab
+pub fn grow_up_on_tab(input: Res<ButtonInput<KeyCode>>, mut commands: Commands) {
+    if input.just_pressed(KeyCode::Tab) {
+        commands.trigger(GrowUp);
+    }
+}
@@ -4,7 +4,7 @@ mod direction;
 pub use direction::Direction;

 mod events;
-pub use events::GridBarier;
+pub use events::{GridBarier, GrowUp};

 mod snake_path;
 pub use snake_path::SnakePath;
@@ -15,3 +15,6 @@ impl GridBarier {
        Self { entity, position, direction }
    }
 }
+
+#[derive(Event)]
+pub struct GrowUp;
@@ -1,6 +1,9 @@
 use std::{fmt::Display, ops::Deref};

-use bevy::transform::components::Transform;
+use bevy::{
+    math::{Vec2, vec2},
+    transform::components::Transform,
+};

 use crate::domain::{Direction, GRID_SIZE};

@@ -23,6 +26,10 @@ impl Position {
            Direction::Right => self.x += 1,
        }
    }
+
+    pub fn translation(&self) -> Vec2 {
+        vec2(self.x as f32 * GRID_SIZE as f32, self.y as f32 * GRID_SIZE as f32)
+    }
 }

 impl Display for Position {
@@ -29,9 +29,17 @@ pub fn head_rotation(
        head.0 = new_direction;
        transform.rotation = new_direction.orientation();
        trace!("running {direction} at {cur_pos} {translation}: go {new_direction}");
+    } else if input.just_pressed(KeyCode::ArrowUp) {
+        let (mut transform, mut head, direction) = query.into_inner();
+        let translation = transform.translation.clone();
+        let cur_pos = Position::from(&*transform);
+        head.0 = direction.clone();
+        transform.rotation = direction.orientation();
+        trace!("running {direction} at {cur_pos} {translation}: go {direction}");
    }
 }

+/// Общая механика движения
 fn moving(
    velocity: &f32,
    time: &Time<Fixed>,
@@ -68,6 +76,7 @@ fn moving(
    }
 }

+/// Система движения головы змеи
 pub fn head_moving(
    query: Query<(&mut Transform, &mut Direction, &Velocity, &Head, Entity)>,
    time: Res<Time<Fixed>>,
@@ -86,6 +95,7 @@ pub fn head_moving(
    }
 }

+/// Система движения тела змеи
 pub fn snake_moving(
    query: Query<(&mut Transform, &mut Direction, &Velocity, Entity), (With<Tail>, Without<Head>)>,
    time: Res<Time<Fixed>>,
@@ -32,7 +32,14 @@ fn main() {
                // snake_game::debug::print_all_entities,
            ),
        )
-        .add_systems(Update, (head_rotation,))
+        .add_systems(
+            Update,
+            (
+                || {}, //
+                head_rotation,
+                snake_game::debug::grow_up_on_tab,
+            ),
+        )
        .add_systems(FixedUpdate, (head_moving, snake_moving))
        .add_systems(
            PostUpdate,
@@ -21,3 +21,24 @@ pub fn clean_snake_path(event: On<GridBarier>, query: Query<&End>, mut snake_pat
        snake_path.remove(&event.position);
    }
 }
+
+/// Обработка события [GrowUp]
+pub fn grow_up_snake(_: On<GrowUp>, mut commands: Commands, query: Single<(Entity, &Direction, &Transform), (With<Tail>, With<End>)>) {
+    let (entity, direction, transform) = query.into_inner();
+    commands.entity(entity).remove::<End>();
+    let pos = Position::from(transform);
+    let new_end = commands
+        .spawn((
+            Tail,
+            End,
+            direction.clone(),
+            Velocity(0.0),
+            Sprite::from_color(Color::srgb(0.75, 0.75, 0.75), vec2(HEAD_SIZE as f32 * 0.8, HEAD_SIZE as f32 * 0.8)),
+            Transform {
+                translation: pos.translation().extend(0.0),
+                ..Default::default()
+            },
+        ))
+        .id();
+    commands.entity(entity).observe(schedule_set_velocity(new_end));
+}
@@ -20,6 +20,7 @@ fn spawn_snake(commands: &mut Commands) {
    commands.insert_resource(SnakePath::default());

    commands.spawn(Observer::new(crate::observers::clean_snake_path));
+    commands.spawn(Observer::new(crate::observers::grow_up_snake));

    commands.spawn(Observer::new(crate::debug::trace_snake_moving));