Проектная работа - WIP

snake-game/src/domain.rs

@@ -10,7 +10,7 @@ pub const SNAKE_VELOCITY: u8 = (GRID_SIZE as f32 / 1.0) as u8;
 pub struct Head;
 
 /// Направление движения
-#[derive(Component)]
+#[derive(Component, PartialEq)]
 pub enum Direction {
     Up,
     Left,
@@ -18,10 +18,6 @@ pub enum Direction {
     Right,
 }
 
-/// Скорость движения
-#[derive(Component)]
-pub struct Velocity(f32);
-
 impl Direction {
     pub fn rotate_left(&mut self) {
         *self = match self {
@@ -40,6 +36,15 @@ impl Direction {
             Direction::Left => Direction::Up,
         };
     }
+
+    pub fn vector(&self) -> Vec2 {
+        match self {
+            Direction::Up => vec2(0., 1.),
+            Direction::Right => vec2(-1., 0.),
+            Direction::Down => vec2(0., -1.),
+            Direction::Left => vec2(1., 0.),
+        }
+    }
 }
 
 impl Default for Direction {
@@ -47,3 +52,11 @@ impl Default for Direction {
         Direction::Up
     }
 }
+
+/// Скорость движения
+#[derive(Component)]
+pub struct Velocity(pub f32);
+
+/// Инерция
+#[derive(Component, Default)]
+pub struct Inert(pub Direction);