movement + collision untested and unsued

src/kirby.rs

@@ -1,19 +1,63 @@
-use bevy::{prelude::*, render::renderer};
+use crate::physics_body::PhysicsBody;
+use crate::sphere_collider::SphereCollider;
+use bevy::prelude::*;
 
 #[derive(Component)]
-#[require(Transform, Sprite)]
+#[require(Sprite, PhysicsBody, SphereCollider)]
-pub struct Kirby();
+pub struct Kirby {
+    move_speed: f32,
+}
 
 pub fn kirby_spawn(mut commands: Commands, asset_server: Res<AssetServer>) {
     let sprite = Sprite::from_image(asset_server.load("sprites/kirby.png"));
-    commands.spawn((Kirby(), Transform::from_xyz(0.0, 0.0, 0.0), sprite));
+    let body = PhysicsBody {
+        mass: 10.0,
+        force: Vec2::ZERO,
+        velocity: Vec2::ZERO,
+        drag: 0.01,
+    };
+    let transform = Transform::from_xyz(0.0, 0.0, 0.0).with_scale(Vec3::ONE * 0.25);
+    commands.spawn((Kirby { move_speed: 200.0 }, transform, sprite, body));
 }
 
-pub fn kirby_input(
+pub fn get_dir(keys: Res<ButtonInput<KeyCode>>) -> Vec2 {
-    keyboard_input: Res<ButtonInput<KeyCode>>,
+    if keys.pressed(KeyCode::Space) {
-    // query: Query<&mut Transform, With<Kirby>>,
-) {
-    if keyboard_input.pressed(KeyCode::Space) {
         println!("SUCKING");
     }
+
+    let mut dir = Vec2::ZERO;
+
+    if keys.pressed(KeyCode::KeyW) {
+        dir.y += 1.0;
+    }
+    if keys.pressed(KeyCode::KeyS) {
+        dir.y -= 1.0;
+    }
+    if keys.pressed(KeyCode::KeyA) {
+        dir.x -= 1.0;
+    }
+    if keys.pressed(KeyCode::KeyD) {
+        dir.x += 1.0;
+    }
+
+    dir.normalize_or_zero()
+}
+
+pub fn kirby_player_move(
+    keys: Res<ButtonInput<KeyCode>>,
+    mut query: Query<(&mut PhysicsBody, &Kirby), With<Kirby>>,
+) {
+    if keys.pressed(KeyCode::Space) {
+        println!("SUCKING");
+    }
+    let dir = get_dir(keys);
+    for (mut body, kirby) in &mut query {
+        body.velocity = dir * kirby.move_speed;
+    }
+}
+
+#[derive(Component)]
+#[require(Sprite, Transform)]
+pub struct KirbySuction {
+    box_size: Vec2,
 }

src/main.rs

@@ -1,15 +1,19 @@
 use bevy::prelude::*;
 use camera::spawn_camera;
-use kirby::kirby_input;
+use kirby::kirby_player_move;
 use kirby::kirby_spawn;
+use physics_body::integrate;
+
 mod camera;
 mod kirby;
+mod physics_body;
+mod sphere_collider;
 
 fn main() {
     App::new()
         .add_plugins(DefaultPlugins)
         .add_systems(Startup, spawn_camera)
         .add_systems(Startup, kirby_spawn)
-        .add_systems(Update, kirby_input)
+        .add_systems(FixedUpdate, (kirby_player_move, integrate).chain())
         .run();
 }