Проектная работа - WIP

snake-game/src/startup.rs

@@ -1,17 +1,29 @@
 use std::time::Duration;
 
-use bevy::{ecs::spawn, prelude::*, winit::WinitSettings};
+use bevy::{prelude::*, winit::WinitSettings};
 
-use crate::domain::{Direction, FRAMES_PER_SECOND, GRID_SIZE, Inert, SNAKE_VELOCITY, Velocity};
+use crate::domain::Tail;
 
-/// Инициализация игрового мира
-pub fn startup(mut commands: Commands, mut winit: ResMut<WinitSettings>) {
-    use crate::domain::{HEAD_SIZE, Head};
+/// Настройка частоты кадров
+pub fn setup_frame_rate(mut winit: ResMut<WinitSettings>) {
+    use crate::domain::FRAMES_PER_SECOND;
 
     winit.focused_mode =
         bevy::winit::UpdateMode::reactive(Duration::from_secs_f32(1. / FRAMES_PER_SECOND as f32));
     winit.unfocused_mode =
         bevy::winit::UpdateMode::reactive(Duration::from_secs_f32(1. / FRAMES_PER_SECOND as f32));
+}
+
+/// Инициализация игрового мира
+pub fn startup(mut commands: Commands) {
+    spawn_snake(&mut commands);
+    spawn_grid(&mut commands);
+    commands.spawn(Camera2d);
+}
+
+/// Создать голову змеи
+fn spawn_snake(commands: &mut Commands) {
+    use crate::domain::{Direction, HEAD_SIZE, Head, Inert, SNAKE_VELOCITY, Velocity};
 
     let head = commands
         .spawn((
@@ -24,7 +36,7 @@ pub fn startup(mut commands: Commands, mut winit: ResMut<WinitSettings>) {
                 vec2(HEAD_SIZE as f32, HEAD_SIZE as f32),
             ),
             Transform {
-                translation: vec3(0., 0., 0.),
+                translation: vec3(0.0, 0.0, 1.0),
                 ..Default::default()
             },
         ))
@@ -35,7 +47,7 @@ pub fn startup(mut commands: Commands, mut winit: ResMut<WinitSettings>) {
             vec2(HEAD_SIZE as f32 * 0.3, HEAD_SIZE as f32 * 0.3),
         ),
         Transform {
-            translation: vec3(HEAD_SIZE as f32 * -0.25, HEAD_SIZE as f32 * 0.25, 0.),
+            translation: vec3(HEAD_SIZE as f32 * -0.25, HEAD_SIZE as f32 * 0.25, 0.0),
             ..Default::default()
         },
         ChildOf(head),
@@ -46,12 +58,33 @@ pub fn startup(mut commands: Commands, mut winit: ResMut<WinitSettings>) {
             vec2(HEAD_SIZE as f32 * 0.2, HEAD_SIZE as f32 * 0.2),
         ),
         Transform {
-            translation: vec3(HEAD_SIZE as f32 * 0.25, HEAD_SIZE as f32 * 0.25, 0.),
+            translation: vec3(HEAD_SIZE as f32 * 0.25, HEAD_SIZE as f32 * 0.25, 0.0),
             ..Default::default()
         },
         ChildOf(head),
     ));
 
+    commands.spawn((
+        Tail(0),
+        Direction::default(),
+        Inert::default(),
+        Velocity(0.0),
+        Sprite::from_color(
+            Color::srgb(0.7, 0.7, 0.7),
+            vec2(HEAD_SIZE as f32 * 0.8, HEAD_SIZE as f32 * 0.8),
+        ),
+        Transform {
+            translation: vec3(0.0, 0.0, 0.0),
+            ..Default::default()
+        },
+        // ChildOf(head),
+    ));
+}
+
+/// Создать координатную сетку
+fn spawn_grid(commands: &mut Commands) {
+    use crate::domain::GRID_SIZE;
+
     for x in -20..=20 {
         commands.spawn((
             Sprite::from_color(Color::srgb(1.0, 1.0, 0.5), vec2(1.0, 2000.0)),
@@ -70,6 +103,4 @@ pub fn startup(mut commands: Commands, mut winit: ResMut<WinitSettings>) {
             },
         ));
     }
-
-    commands.spawn(Camera2d);
 }