added small game logic, cooking burger and serving customer

src/main.rs

@@ -4,14 +4,42 @@ fn main() {
     App::new()
         .add_plugins(DefaultPlugins)
         .add_systems(Startup, setup)
-        .add_systems(Update, (handle_click, move_to_target))
+        .add_systems(
+            Update,
+            (handle_click, move_to_target, fryer_cook, customer_serve),
+        )
         .run();
 }
 
+#[derive(PartialEq)]
+enum Item {
+    None,
+    Burger,
+}
+
+#[derive(Component)]
+struct Customer {
+    order: Item,
+    served: bool,
+    range: f32,
+}
+
+#[derive(Component)]
+struct Fryer {
+    range: f32,
+    speed: f32,
+}
+
+#[derive(Component)]
+struct Unit {
+    move_speed: f32,
+    height_offset: f32,
+}
+
 #[derive(Component)]
 struct Player {
-    move_speed: f32,
-    height_offset: f32,
+    holding: Item,
+    progress: f32,
 }
 
 #[derive(Component)]
@@ -31,22 +59,7 @@ fn setup(
         Transform::from_xyz(0.0, 25.0, -25.0).looking_at(Vec3::ZERO, Vec3::Y),
     ));
 
-    // Player
-    commands.spawn((
-        SceneRoot(asset_server.load("models/employee.glb#Scene0")),
-        //MeshMaterial3d(materials.add(Color::srgb(0.9, 0.83, 0.6))),
-        Transform::from_xyz(0.0, 1.5, 0.0).with_scale(Vec3::splat(0.5)),
-        Player {
-            move_speed: 10.0,
-            height_offset: 1.5,
-        },
-        MoveTarget {
-            position: Vec3::new(0.0, 0.0, 0.0),
-        },
-    ));
-
     // Light
-
     commands.insert_resource(AmbientLight {
         color: Color::WHITE,
         brightness: 200.0, // Subtle fill light so shadows aren't pitch black
@@ -67,27 +80,71 @@ fn setup(
         )),
     ));
 
-    /*commands.spawn((
-        PointLight {
-            intensity: 1000000.0,
-            shadows_enabled: true,
-            ..default()
-        },
-        Transform::from_xyz(0.0, 10.0, 0.0),
-    ));*/
-
     // Plane
     commands.spawn((
         Mesh3d(meshes.add(Plane3d::new(Vec3::Y, Vec2::splat(50.0)))),
         MeshMaterial3d(materials.add(Color::srgb(0.3, 0.5, 0.3))),
     ));
+
+    // Fryer
+    commands.spawn((
+        Mesh3d(meshes.add(Cuboid::new(2.0, 1.75, 2.0))),
+        Transform::from_xyz(-10.0, 0.875, 0.0),
+        MeshMaterial3d(materials.add(Color::srgb(0.1, 0.1, 0.1))),
+        Fryer {
+            range: 3.0,
+            speed: 50.0,
+        },
+    ));
+
+    // Front Counter
+    commands.spawn((
+        Mesh3d(meshes.add(Cuboid::new(2.0, 1.5, 10.0))),
+        Transform::from_xyz(10.0, 0.75, 0.0),
+        MeshMaterial3d(materials.add(Color::srgb(0.7, 0.7, 0.7))),
+    ));
+
+    // Player
+    commands.spawn((
+        SceneRoot(asset_server.load("models/employee.glb#Scene0")),
+        Transform::from_xyz(0.0, 1.5, 0.0).with_scale(Vec3::splat(0.5)),
+        Unit {
+            move_speed: 10.0,
+            height_offset: 1.5,
+        },
+        Player {
+            holding: Item::None,
+            progress: 0.0,
+        },
+        MoveTarget {
+            position: Vec3::new(0.0, 0.0, 0.0),
+        },
+    ));
+
+    // Customer
+    commands.spawn((
+        SceneRoot(asset_server.load("models/customer.glb#Scene0")),
+        Transform::from_xyz(20.0, 1.5, 0.0).with_scale(Vec3::splat(0.5)),
+        Unit {
+            move_speed: 5.0,
+            height_offset: 1.5,
+        },
+        Customer {
+            order: Item::Burger,
+            served: false,
+            range: 4.0,
+        },
+        MoveTarget {
+            position: Vec3::new(12.0, 0.0, 0.0),
+        },
+    ));
 }
 
 fn handle_click(
     mouse_button: Res<ButtonInput<MouseButton>>,
     windows: Query<&Window>,
     camera_query: Query<(&Camera, &GlobalTransform)>,
-    mut target_query: Query<&mut MoveTarget>,
+    mut target_query: Query<&mut MoveTarget, With<Player>>,
 ) {
     // Guard clause
     if !mouse_button.just_pressed(MouseButton::Right) {
@@ -126,9 +183,9 @@ fn handle_click(
     }
 }
 
-fn move_to_target(mut query: Query<(&mut Transform, &MoveTarget, &Player)>, time: Res<Time>) {
-    for (mut transform, target, player) in query.iter_mut() {
-        let adjusted_target = target.position + Vec3::Y * player.height_offset;
+fn move_to_target(mut query: Query<(&mut Transform, &MoveTarget, &Unit)>, time: Res<Time>) {
+    for (mut transform, target, unit) in query.iter_mut() {
+        let adjusted_target = target.position + Vec3::Y * unit.height_offset;
         let direction = adjusted_target - transform.translation;
         let distance = direction.length();
 
@@ -137,16 +194,62 @@ fn move_to_target(mut query: Query<(&mut Transform, &MoveTarget, &Player)>, time
             continue;
         }
 
-        let move_amount = player.move_speed * time.delta_secs();
+        let move_amount = unit.move_speed * time.delta_secs();
 
         // Snap
         if distance < move_amount {
             transform.translation = adjusted_target;
         } else {
             transform.translation += direction.normalize() * move_amount;
-
-            let target_look = target.position + Vec3::Y * player.height_offset;
-            transform.look_at(target_look, Vec3::Y);
+            transform.look_at(adjusted_target, Vec3::Y);
+        }
+    }
+}
+
+fn fryer_cook(
+    mut player: Query<(&mut Player, &Transform)>,
+    fryer: Query<(&Fryer, &Transform)>,
+    time: Res<Time>,
+) {
+    for (mut player_data, player_transform) in player.iter_mut() {
+        if player_data.holding == Item::Burger {
+            continue;
+        }
+        for (fryer, fryer_transform) in fryer.iter() {
+            let distance = player_transform.translation - fryer_transform.translation;
+            if distance.length() < fryer.range {
+                player_data.progress += fryer.speed * time.delta_secs();
+
+                if player_data.progress > 100.0 {
+                    player_data.holding = Item::Burger;
+                    println!("YOU HAVE BURGER!!");
+                }
+            } else {
+                player_data.progress = 0.0;
+            }
+        }
+    }
+}
+
+fn customer_serve(
+    mut customer: Query<(&mut Customer, &mut MoveTarget, &Transform)>,
+    mut player: Query<(&mut Player, &Transform)>,
+) {
+    for (mut player_data, player_transform) in player.iter_mut() {
+        if player_data.holding == Item::None {
+            continue;
+        }
+        for (mut customer_data, mut customer_target, customer_transform) in customer.iter_mut() {
+            if player_data.holding != customer_data.order {
+                continue;
+            }
+
+            let distance = player_transform.translation - customer_transform.translation;
+            if distance.length() < customer_data.range {
+                player_data.holding = Item::None;
+                customer_data.served = true;
+                customer_target.position = Vec3::new(20.0, 0.0, 0.0);
+            }
         }
     }
 }