From 079341f5a84b743de068b4c1f25064915e23050b Mon Sep 17 00:00:00 2001
From: Rendo <geometicalplayer@gmail.com>
Date: Sat, 15 Nov 2025 19:04:08 +0500
Subject: [PATCH] Projectrile movement and moving refactor

---
 src/damagable.rs    |  7 +++++
 src/main.rs         |  8 +++--
 src/movable.rs      | 42 -------------------------
 src/projectile.rs   | 31 ++++++++++++++++++-
 src/ships/enemy.rs  |  4 +--
 src/ships/mod.rs    |  6 ++--
 src/ships/player.rs |  7 ++---
 src/velocity.rs     | 75 +++++++++++++++++++++++++++++++++++++++++++++
 8 files changed, 125 insertions(+), 55 deletions(-)
 delete mode 100644 src/movable.rs
 create mode 100644 src/velocity.rs

diff --git a/src/damagable.rs b/src/damagable.rs
index 70849e8..fbe082d 100644
--- a/src/damagable.rs
+++ b/src/damagable.rs
@@ -1,4 +1,5 @@
 use bevy::prelude::*;
+use std::default::Default;
 
 pub struct DamagablePlugin;
 
@@ -14,6 +15,12 @@ pub struct Damagable {
     max_hp: u32,
 }
 
+impl Default for Damagable {
+    fn default() -> Self {
+        Self { max_hp: 15, hp: 15 }
+    }
+}
+
 impl Damagable {
     pub fn new(max_hp: u32) -> Damagable {
         Damagable { max_hp, hp: max_hp }
diff --git a/src/main.rs b/src/main.rs
index 8d72a61..d143aa6 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -2,21 +2,23 @@ use bevy::prelude::*;
 
 use crate::collision::CollisionPlugin;
 use crate::damagable::DamagablePlugin;
-use crate::movable::MovablePlugin;
+use crate::projectile::ProjectilePlugin;
 use crate::ships::ShipsPlugin;
+use crate::velocity::VelocityPlugin;
 
 mod collision;
 mod damagable;
-mod movable;
 mod projectile;
 mod ships;
+mod velocity;
 
 fn main() {
     App::new()
         .add_plugins(DefaultPlugins)
-        .add_plugins(MovablePlugin)
+        .add_plugins(VelocityPlugin)
         .add_plugins(CollisionPlugin)
         .add_plugins(ShipsPlugin)
         .add_plugins(DamagablePlugin)
+        .add_plugins(ProjectilePlugin)
         .run();
 }
diff --git a/src/movable.rs b/src/movable.rs
deleted file mode 100644
index 4fcd820..0000000
--- a/src/movable.rs
+++ /dev/null
@@ -1,42 +0,0 @@
-use bevy::prelude::*;
-
-pub struct MovablePlugin;
-
-impl Plugin for MovablePlugin {
-    fn build(&self, app: &mut App) {
-        app.insert_resource(Time::<Fixed>::from_hz(60.0))
-            .add_systems(FixedUpdate, movement_system);
-    }
-}
-
-#[derive(Component)]
-pub struct Movable {
-    pub linear_speed: f32,
-    pub rotation_speed: f32,
-    pub max_linear_speed: f32,
-    pub max_rotation_speed: f32,
-}
-
-impl Movable {
-    pub fn new(max_linear_speed: f32, max_rotation_speed: f32) -> Movable {
-        Movable {
-            linear_speed: 0.,
-            rotation_speed: 0.,
-            max_linear_speed: max_linear_speed,
-            max_rotation_speed: max_rotation_speed,
-        }
-    }
-}
-
-fn movement_system(time: Res<Time>, query: Query<(&Movable, &mut Transform)>) {
-    for (movable, mut transform) in query {
-        transform.rotate_z(movable.rotation_speed * time.delta_secs());
-        let movement_direction = transform.rotation * Vec3::X;
-        let movement_distance = movable.linear_speed * time.delta_secs();
-        let translation_delta = movement_direction * movement_distance;
-
-        transform.translation += translation_delta;
-
-        //TODO: Loop on bounds
-    }
-}
diff --git a/src/projectile.rs b/src/projectile.rs
index 078ae10..c2c4290 100644
--- a/src/projectile.rs
+++ b/src/projectile.rs
@@ -4,17 +4,44 @@ use crate::{
     collision::{Collided, Collider},
     damagable::Damagable,
     ships::Factions,
+    velocity::Velocity,
 };
 
 #[derive(Component)]
 pub struct Projectile {
     damage: u32,
     faction: Factions,
+    despawn_countdown: Timer,
 }
 
+pub struct ProjectilePlugin;
+
 impl Projectile {
     pub fn new(damage: u32, faction: Factions) -> Projectile {
-        Projectile { damage, faction }
+        Projectile {
+            damage,
+            faction,
+            despawn_countdown: Timer::from_seconds(20., TimerMode::Once),
+        }
+    }
+}
+
+impl Plugin for ProjectilePlugin {
+    fn build(&self, app: &mut App) {
+        app.add_systems(FixedPreUpdate, projectile_despawn_countdown);
+    }
+}
+
+pub fn projectile_despawn_countdown(
+    mut commands: Commands,
+    time: Res<Time>,
+    query: Query<(Entity, &mut Projectile)>,
+) {
+    for (entity, mut projectile) in query {
+        projectile.despawn_countdown.tick(time.delta());
+        if projectile.despawn_countdown.is_finished() {
+            commands.get_entity(entity).unwrap().despawn();
+        }
     }
 }
 
@@ -30,9 +57,11 @@ pub fn spawn_projectile(
             Sprite::from(sprite),
             Collider::new(8.),
             Transform::from_xyz(0., 0., 0.),
+            Velocity::moving(128.0, 0.0),
         ))
         .observe(observe_collision);
 }
+
 pub fn observe_collision(
     collision: On<Collided>,
     mut commands: Commands,
diff --git a/src/ships/enemy.rs b/src/ships/enemy.rs
index 320a702..11edd83 100644
--- a/src/ships/enemy.rs
+++ b/src/ships/enemy.rs
@@ -1,6 +1,6 @@
 use bevy::prelude::*;
 
-use crate::{collision::Collider, damagable::Damagable, movable::Movable, ships::Factions};
+use crate::{collision::Collider, damagable::Damagable, ships::Factions, velocity::Velocity};
 
 #[derive(Component)]
 pub struct Enemy;
@@ -9,7 +9,7 @@ pub fn spawn_enemy(commands: &mut Commands, sprite: Handle<Image>, at: Vec2) {
     commands.spawn((
         Enemy,
         Collider::new(8.),
-        Movable::new(500., f32::to_radians(360.)),
+        Velocity::stopped(500., f32::to_radians(360.)),
         Sprite::from(sprite),
         Transform::from_xyz(at.x, at.y, 0.),
         Damagable::new(10),
diff --git a/src/ships/mod.rs b/src/ships/mod.rs
index 0685c1e..d57737b 100644
--- a/src/ships/mod.rs
+++ b/src/ships/mod.rs
@@ -51,7 +51,7 @@ fn startup(mut commands: Commands, asset_server: Res<AssetServer>) {
 
     commands.spawn(Camera2d);
 
-    player::spawn_player(&mut commands, player_sprite, Vec2::new(100., 100.));
-    enemy::spawn_enemy(&mut commands, enemy_sprite.clone(), Vec2::new(0., 0.));
-    spawn_projectile(&mut commands, projectile, 100, Factions::PlayerFaction);
+    player::spawn_player(&mut commands, player_sprite, Vec2::new(0., 0.));
+    enemy::spawn_enemy(&mut commands, enemy_sprite.clone(), Vec2::new(100., 100.));
+    spawn_projectile(&mut commands, projectile, 1, Factions::PlayerFaction);
 }
diff --git a/src/ships/player.rs b/src/ships/player.rs
index bc20a9e..2f39199 100644
--- a/src/ships/player.rs
+++ b/src/ships/player.rs
@@ -1,7 +1,8 @@
-use crate::{collision::Collider, damagable::Damagable, movable::Movable, ships::Factions};
+use crate::{collision::Collider, damagable::Damagable, ships::Factions, velocity::Velocity};
 use bevy::prelude::*;
 
 #[derive(Component)]
+#[require(Velocity, Damagable)]
 pub struct Player {
     pub(super) acceleration: f32,
 }
@@ -10,10 +11,8 @@ pub fn spawn_player(commands: &mut Commands, sprite: Handle<Image>, at: Vec2) {
     commands.spawn((
         Player { acceleration: 100. },
         Collider::new(8.),
-        Movable::new(500., f32::to_radians(360.)),
         Sprite::from(sprite),
         Transform::from_xyz(at.x, at.y, 0.),
-        Damagable::new(10),
         Factions::PlayerFaction,
     ));
 }
@@ -21,7 +20,7 @@ pub fn spawn_player(commands: &mut Commands, sprite: Handle<Image>, at: Vec2) {
 pub(super) fn player_movement_system(
     time: Res<Time>,
     keyboard_input: Res<ButtonInput<KeyCode>>,
-    query: Single<(&mut Movable, &Player)>,
+    query: Single<(&mut Velocity, &Player)>,
 ) {
     let (mut movable, player) = query.into_inner();
     let mut movement_factor = 0.0;
diff --git a/src/velocity.rs b/src/velocity.rs
new file mode 100644
index 0000000..f3db730
--- /dev/null
+++ b/src/velocity.rs
@@ -0,0 +1,75 @@
+use bevy::prelude::*;
+use std::default::Default;
+
+pub struct VelocityPlugin;
+
+impl Plugin for VelocityPlugin {
+    fn build(&self, app: &mut App) {
+        app.insert_resource(Time::<Fixed>::from_hz(60.0))
+            .add_systems(FixedUpdate, movement_system);
+    }
+}
+
+#[derive(Component)]
+pub struct Velocity {
+    pub linear_speed: f32,
+    pub rotation_speed: f32,
+    pub max_linear_speed: f32,
+    pub max_rotation_speed: f32,
+}
+
+impl Velocity {
+    pub fn new(
+        linear_speed: f32,
+        rotation_speed: f32,
+        max_linear_speed: f32,
+        max_rotation_speed: f32,
+    ) -> Velocity {
+        Velocity {
+            linear_speed,
+            rotation_speed,
+            max_linear_speed: max_linear_speed,
+            max_rotation_speed: max_rotation_speed,
+        }
+    }
+    pub fn stopped(max_linear_speed: f32, max_rotation_speed: f32) -> Velocity {
+        Velocity {
+            linear_speed: 0.,
+            rotation_speed: 0.,
+            max_linear_speed: max_linear_speed,
+            max_rotation_speed: max_rotation_speed,
+        }
+    }
+    pub fn moving(max_linear_speed: f32, max_rotation_speed: f32) -> Velocity {
+        Velocity {
+            linear_speed: max_linear_speed,
+            rotation_speed: 0.,
+            max_linear_speed: max_linear_speed,
+            max_rotation_speed: max_rotation_speed,
+        }
+    }
+}
+
+impl Default for Velocity {
+    fn default() -> Self {
+        Self {
+            linear_speed: 0.,
+            rotation_speed: 0.,
+            max_linear_speed: 64.,
+            max_rotation_speed: f32::to_radians(360.),
+        }
+    }
+}
+
+fn movement_system(time: Res<Time>, query: Query<(&Velocity, &mut Transform)>) {
+    for (movable, mut transform) in query {
+        transform.rotate_z(movable.rotation_speed * time.delta_secs());
+        let movement_direction = transform.rotation * Vec3::X;
+        let movement_distance = movable.linear_speed * time.delta_secs();
+        let translation_delta = movement_direction * movement_distance;
+
+        transform.translation += translation_delta;
+
+        //TODO: Loop on bounds
+    }
+}