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-rw-r--r--ecs/examples/component_changed_event.rs78
-rw-r--r--ecs/examples/component_events.rs64
-rw-r--r--ecs/examples/component_relationship.rs65
-rw-r--r--ecs/examples/component_removed_event.rs46
-rw-r--r--ecs/examples/error_handling.rs79
-rw-r--r--ecs/examples/event_loop.rs120
-rw-r--r--ecs/examples/extension.rs70
-rw-r--r--ecs/examples/multiple_queries.rs85
-rw-r--r--ecs/examples/optional_component.rs81
-rw-r--r--ecs/examples/relationship.rs56
-rw-r--r--ecs/examples/simple.rs42
-rw-r--r--ecs/examples/with_local.rs70
-rw-r--r--ecs/examples/with_sole.rs61
13 files changed, 0 insertions, 917 deletions
diff --git a/ecs/examples/component_changed_event.rs b/ecs/examples/component_changed_event.rs
deleted file mode 100644
index 2168df0..0000000
--- a/ecs/examples/component_changed_event.rs
+++ /dev/null
@@ -1,78 +0,0 @@
-use ecs::event::component::{Changed, EventMatchExt};
-use ecs::pair::Pair;
-use ecs::phase::UPDATE as UPDATE_PHASE;
-use ecs::system::observer::Observe;
-use ecs::{Component, Query, World};
-
-#[derive(Component)]
-struct SomeData
-{
- num: u64,
-}
-
-#[derive(Component)]
-struct Greeting
-{
- greeting: String,
-}
-
-fn say_hello(query: Query<(&SomeData, &mut Greeting)>)
-{
- for (data, mut greeting) in &query {
- println!("{}: {}", greeting.greeting, data.num);
-
- if greeting.greeting == "Good evening" {
- greeting.greeting = "Good morning".to_string();
- greeting.set_changed();
- }
- }
-}
-
-fn print_changed_greetings(observe: Observe<'_, Pair<Changed, Greeting>>)
-{
- println!("\nChanged greetings:");
-
- for evt_match in &observe {
- let greeting = evt_match.get_ent_target_comp();
-
- println!("A greeting changed to {}", greeting.greeting);
- }
-
- println!("");
-}
-
-fn main()
-{
- let mut world = World::new();
-
- world.register_system(*UPDATE_PHASE, say_hello);
-
- world.register_observer(print_changed_greetings);
-
- world.create_entity((
- SomeData { num: 987_654 },
- Greeting {
- greeting: "Good afternoon".to_string(),
- },
- ));
-
- world.create_entity((
- SomeData { num: 345 },
- Greeting { greeting: "Good evening".to_string() },
- ));
-
- world.step();
-
- world.step();
-
- for (mut greeting,) in &world.query::<(&mut Greeting,), ()>() {
- if greeting.greeting == "Good afternoon" {
- greeting.greeting = "Yo yo".to_string();
- greeting.set_changed();
- }
- }
-
- world.step();
-
- world.step();
-}
diff --git a/ecs/examples/component_events.rs b/ecs/examples/component_events.rs
deleted file mode 100644
index 06e7fab..0000000
--- a/ecs/examples/component_events.rs
+++ /dev/null
@@ -1,64 +0,0 @@
-use ecs::actions::Actions;
-use ecs::component::Component;
-use ecs::event::component::{Changed, EventMatchExt, Removed};
-use ecs::pair::Pair;
-use ecs::phase::UPDATE;
-use ecs::system::observer::Observe;
-use ecs::{Component, Query, World};
-
-#[derive(Debug, Component)]
-struct CheeseCrumbs
-{
- cnt: usize,
-}
-
-#[derive(Debug, Component)]
-struct Cheese
-{
- name: &'static str,
-}
-
-fn eat_cheese(query: Query<(&Cheese, &mut CheeseCrumbs)>, mut actions: Actions)
-{
- for (cheese_ent_id, (_, mut cheese_crumbs)) in query.iter_with_euids() {
- println!("Eating cheese!");
-
- cheese_crumbs.cnt += 40;
- cheese_crumbs.set_changed();
-
- actions.remove_components(cheese_ent_id, [Cheese::id()]);
- }
-}
-
-fn on_cheese_removed(observe: Observe<Pair<Removed, Cheese>>)
-{
- for evt_match in &observe {
- let cheese = evt_match.get_ent_target_comp();
-
- println!("{} cheese was eaten", cheese.name);
- }
-}
-
-fn on_cheese_crumbs_changed(observe: Observe<Pair<Changed, CheeseCrumbs>>)
-{
- for evt_match in &observe {
- let cheese_crumbs = evt_match.get_ent_target_comp();
-
- println!("Cheese crumbs count changed to {}", cheese_crumbs.cnt);
- }
-}
-
-fn main()
-{
- let mut world = World::new();
-
- world.register_system(*UPDATE, eat_cheese);
- world.register_observer(on_cheese_removed);
- world.register_observer(on_cheese_crumbs_changed);
-
- world.create_entity((Cheese { name: "Brie" }, CheeseCrumbs { cnt: 0 }));
- world.create_entity((Cheese { name: "Parmesan" }, CheeseCrumbs { cnt: 0 }));
- world.create_entity((Cheese { name: "Gouda" }, CheeseCrumbs { cnt: 0 }));
-
- world.step();
-}
diff --git a/ecs/examples/component_relationship.rs b/ecs/examples/component_relationship.rs
deleted file mode 100644
index e07b214..0000000
--- a/ecs/examples/component_relationship.rs
+++ /dev/null
@@ -1,65 +0,0 @@
-use ecs::pair::Pair;
-use ecs::phase::START as START_PHASE;
-use ecs::{Component, Query, World};
-
-#[derive(Component)]
-struct Person
-{
- name: String,
-}
-
-fn print_dog_likers(query: Query<(&Person, Pair<Likes, &Dogs>)>)
-{
- for (person, liked_dogs) in &query {
- println!(
- "{} likes {} dogs!",
- person.name,
- if liked_dogs.large { "large" } else { "small" },
- );
- }
-}
-
-#[derive(Component)]
-struct Likes;
-
-#[derive(Component)]
-struct Cats;
-
-#[derive(Component)]
-struct Dogs
-{
- large: bool,
-}
-
-fn main()
-{
- let mut world = World::new();
-
- world.register_system(*START_PHASE, print_dog_likers);
-
- world.create_entity((
- Person { name: "Irving".to_string() },
- Pair::builder()
- .relation::<Likes>()
- .target_as_data(Dogs { large: true })
- .build(),
- ));
-
- world.create_entity((
- Person { name: "Mark".to_string() },
- Pair::builder()
- .relation::<Likes>()
- .target_as_data(Cats)
- .build(),
- ));
-
- world.create_entity((
- Person { name: "Helena".to_string() },
- Pair::builder()
- .relation::<Likes>()
- .target_as_data(Dogs { large: false })
- .build(),
- ));
-
- world.step();
-}
diff --git a/ecs/examples/component_removed_event.rs b/ecs/examples/component_removed_event.rs
deleted file mode 100644
index 9b73b1a..0000000
--- a/ecs/examples/component_removed_event.rs
+++ /dev/null
@@ -1,46 +0,0 @@
-use ecs::actions::Actions;
-use ecs::component::Component;
-use ecs::event::component::{EventMatchExt, Removed};
-use ecs::pair::Pair;
-use ecs::phase::UPDATE;
-use ecs::system::observer::Observe;
-use ecs::{Component, Query, World};
-
-#[derive(Debug, Component)]
-struct Cheese
-{
- name: &'static str,
-}
-
-fn eat_cheese(query: Query<(&Cheese,)>, mut actions: Actions)
-{
- for (cheese_ent_id, (_,)) in query.iter_with_euids() {
- println!("Eating cheese!");
-
- actions.remove_components(cheese_ent_id, [Cheese::id()]);
- }
-}
-
-fn on_cheese_removed(observe: Observe<Pair<Removed, Cheese>>)
-{
- for evt_match in &observe {
- let cheese = evt_match.get_ent_target_comp();
-
- println!("{} cheese was eaten", cheese.name);
- }
-}
-
-fn main()
-{
- let mut world = World::new();
-
- world.register_system(*UPDATE, eat_cheese);
- world.register_observer(on_cheese_removed);
-
- world.create_entity((Cheese { name: "Brie" },));
- world.create_entity((Cheese { name: "Parmesan" },));
- world.create_entity((Cheese { name: "Gouda" },));
-
- world.step();
- world.step();
-}
diff --git a/ecs/examples/error_handling.rs b/ecs/examples/error_handling.rs
deleted file mode 100644
index dc34c5f..0000000
--- a/ecs/examples/error_handling.rs
+++ /dev/null
@@ -1,79 +0,0 @@
-use ecs::error::Error;
-use ecs::event::component::{Changed, EventMatchExt};
-use ecs::pair::Pair;
-use ecs::phase::UPDATE;
-use ecs::query::Query;
-use ecs::system::observer::Observe;
-use ecs::{Component, World, error};
-use tracing::level_filters::LevelFilter;
-use tracing_subscriber::EnvFilter;
-use tracing_subscriber::fmt::time::ChronoLocal;
-use tracing_subscriber::layer::SubscriberExt;
-use tracing_subscriber::util::SubscriberInitExt;
-
-#[derive(Component)]
-struct State
-{
- value: u32,
-}
-
-fn do_something_fallible(query: Query<(&mut State,)>) -> Result<(), Error>
-{
- for (mut state,) in &query {
- state.value += 1;
-
- state.set_changed();
-
- if state.value > 3 {
- return Err(error!("Invalid state value {}", state.value));
- }
- }
-
- Ok(())
-}
-
-fn handle_state_changed(observe: Observe<Pair<Changed, State>>) -> Result<(), Error>
-{
- for evt_match in &observe {
- let state = evt_match.get_ent_target_comp();
-
- if state.value > 3 {
- return Err(error!("Invalid state value {}", state.value));
- }
-
- tracing::info!("State has valid value {}", state.value);
- }
-
- Ok(())
-}
-
-fn main()
-{
- tracing_subscriber::registry()
- .with(
- tracing_subscriber::fmt::layer()
- .with_timer(ChronoLocal::new("%T%.6f".to_string())),
- )
- .with(
- EnvFilter::builder()
- .with_default_directive(LevelFilter::DEBUG.into())
- .from_env()
- .unwrap(),
- )
- .init();
-
- let mut world = World::new();
-
- world.set_err_handler(ecs::error::err_handler_log_error);
-
- world.create_entity((State { value: 0 },));
-
- world.register_system(*UPDATE, do_something_fallible);
-
- world.register_observer(handle_state_changed);
-
- world.step();
- world.step();
- world.step();
- world.step();
-}
diff --git a/ecs/examples/event_loop.rs b/ecs/examples/event_loop.rs
deleted file mode 100644
index bec2c00..0000000
--- a/ecs/examples/event_loop.rs
+++ /dev/null
@@ -1,120 +0,0 @@
-use ecs::actions::Actions;
-use ecs::pair::{ChildOf, Pair};
-use ecs::phase::{Phase, UPDATE as UPDATE_PHASE};
-use ecs::{declare_entity, Component, Query, World};
-
-#[derive(Component)]
-struct Wool
-{
- remaining: u32,
-}
-
-#[derive(Component)]
-struct Health
-{
- health: u32,
-}
-
-#[derive(Component)]
-struct Name
-{
- name: &'static str,
-}
-
-fn sheer(query: Query<(&mut Wool, &Name)>)
-{
- for (mut wool, name) in &query {
- if wool.remaining == 0 {
- println!("{} Has no wool left", name.name);
-
- continue;
- }
-
- // Sheer the whool
- wool.remaining -= 5;
-
- println!("Sheered 5 wool from {}", name.name);
- }
-}
-
-fn feed(query: Query<(&mut Health, &Name)>)
-{
- for (mut health, name) in &query {
- health.health += 1;
-
- println!("Feeded {} which gained 1 health", name.name);
- }
-}
-
-fn age(query: Query<(&mut Health, &Name)>, mut actions: Actions)
-{
- for (mut health, name) in &query {
- if health.health <= 2 {
- health.health = 0;
-
- println!("{} passed away", name.name);
-
- actions.stop();
-
- continue;
- }
-
- health.health -= 2;
-
- println!("{} aged and lost 2 health", name.name);
- }
-}
-
-declare_entity!(
- SHEER_PHASE,
- (
- Phase,
- Pair::builder()
- .relation::<ChildOf>()
- .target_id(*UPDATE_PHASE)
- .build()
- )
-);
-
-declare_entity!(
- FEED_PHASE,
- (
- Phase,
- Pair::builder()
- .relation::<ChildOf>()
- .target_id(*SHEER_PHASE)
- .build()
- )
-);
-
-declare_entity!(
- AGE_PHASE,
- (
- Phase,
- Pair::builder()
- .relation::<ChildOf>()
- .target_id(*FEED_PHASE)
- .build()
- )
-);
-
-fn main()
-{
- let mut world = World::new();
-
- world.create_declared_entity(&SHEER_PHASE);
- world.create_declared_entity(&FEED_PHASE);
- world.create_declared_entity(&AGE_PHASE);
-
- world.register_system(*SHEER_PHASE, sheer);
- world.register_system(*FEED_PHASE, feed);
- world.register_system(*AGE_PHASE, age);
-
- world.create_entity((
- Wool { remaining: 30 },
- Health { health: 3 },
- Name { name: "Bessy" },
- ));
-
- world.start_loop();
-}
diff --git a/ecs/examples/extension.rs b/ecs/examples/extension.rs
deleted file mode 100644
index f6282e1..0000000
--- a/ecs/examples/extension.rs
+++ /dev/null
@@ -1,70 +0,0 @@
-use ecs::actions::Actions;
-use ecs::extension::{Collector as ExtensionCollector, Extension};
-use ecs::phase::UPDATE as UPDATE_PHASE;
-use ecs::{Component, Query, World};
-
-#[derive(Debug, Component)]
-struct Position
-{
- x: u32,
- y: u32,
-}
-
-#[derive(Debug, Component)]
-struct EnemySpawnSource;
-
-#[derive(Debug, Component)]
-enum EvilnessLevel
-{
- Medium,
-}
-
-fn spawn_enemies(
- spawner_query: Query<(&EnemySpawnSource, &Position)>,
- enemies_query: Query<(&EvilnessLevel,)>,
- mut actions: Actions,
-)
-{
- let Some((_, enemy_spawner_position)) = spawner_query.iter().next() else {
- return;
- };
-
- let enemy_cnt = enemies_query.iter().count();
-
- if enemy_cnt > 3 {
- return;
- }
-
- actions.spawn((
- EvilnessLevel::Medium,
- Position {
- x: enemy_spawner_position.x * enemy_cnt as u32,
- y: enemy_spawner_position.y,
- },
- ));
-
- println!("Spawned enemy with medium evilness and 45 strength");
-}
-
-struct EnemySpawningExtension;
-
-impl Extension for EnemySpawningExtension
-{
- fn collect(self, mut collector: ExtensionCollector<'_>)
- {
- collector.add_system(*UPDATE_PHASE, spawn_enemies);
-
- collector.add_entity((Position { x: 187, y: 30 }, EnemySpawnSource));
- }
-}
-
-fn main()
-{
- let mut world = World::new();
-
- world.add_extension(EnemySpawningExtension);
-
- for _ in 0..7 {
- world.step();
- }
-}
diff --git a/ecs/examples/multiple_queries.rs b/ecs/examples/multiple_queries.rs
deleted file mode 100644
index e0c957f..0000000
--- a/ecs/examples/multiple_queries.rs
+++ /dev/null
@@ -1,85 +0,0 @@
-use std::fmt::Display;
-
-use ecs::phase::START as START_PHASE;
-use ecs::{Component, Query, World};
-
-#[derive(Component)]
-struct Health
-{
- health: u32,
-}
-
-#[derive(Component)]
-enum AttackStrength
-{
- Strong,
- Weak,
-}
-
-#[derive(Component)]
-struct EnemyName
-{
- name: String,
-}
-
-impl Display for EnemyName
-{
- fn fmt(&self, formatter: &mut std::fmt::Formatter<'_>) -> std::fmt::Result
- {
- self.name.fmt(formatter)
- }
-}
-
-fn do_attacks(
- attacker_query: Query<(&AttackStrength,)>,
- enemy_query: Query<(&mut Health, &EnemyName)>,
-)
-{
- for (attack_strength,) in &attacker_query {
- for (mut health, enemy_name) in &enemy_query {
- let damage = match *attack_strength {
- AttackStrength::Strong => 20,
- AttackStrength::Weak => 10,
- };
-
- if health.health <= damage {
- println!("Enemy '{}' died", *enemy_name);
-
- health.health = 0;
-
- continue;
- }
-
- health.health -= damage;
-
- println!("Enemy '{}' took {damage} damage", *enemy_name);
- }
- }
-}
-
-fn main()
-{
- let mut world = World::new();
-
- world.register_system(*START_PHASE, do_attacks);
-
- world.create_entity((
- Health { health: 100 },
- EnemyName { name: "Big spider".to_string() },
- ));
-
- world.create_entity((
- Health { health: 30 },
- EnemyName { name: "Small goblin".to_string() },
- ));
-
- world.create_entity((
- Health { health: 30 },
- EnemyName { name: "Headcrab".to_string() },
- ));
-
- world.create_entity((AttackStrength::Strong,));
- world.create_entity((AttackStrength::Weak,));
-
- world.step();
-}
diff --git a/ecs/examples/optional_component.rs b/ecs/examples/optional_component.rs
deleted file mode 100644
index ebc9115..0000000
--- a/ecs/examples/optional_component.rs
+++ /dev/null
@@ -1,81 +0,0 @@
-use ecs::phase::UPDATE as UPDATE_PHASE;
-use ecs::{Component, Query, World};
-
-#[derive(Debug, Component)]
-struct PettingCapacity
-{
- capacity_left: u32,
-}
-
-#[derive(Debug, Clone, Copy, Component)]
-enum Aggressivity
-{
- High,
- Medium,
- Low,
-}
-
-#[derive(Debug, Component)]
-pub struct CatName
-{
- name: String,
-}
-
-fn pet_cats(query: Query<(&CatName, &mut PettingCapacity, Option<&Aggressivity>)>)
-{
- for (cat_name, mut petting_capacity, aggressivity) in &query {
- let Some(aggressivity) = aggressivity else {
- println!("Aggressivity of cat {} is unknown. Skipping", cat_name.name);
- continue;
- };
-
- if let Aggressivity::High = *aggressivity {
- println!("Cat {} is aggressive. Skipping", cat_name.name);
- continue;
- }
-
- if petting_capacity.capacity_left == 0 {
- println!(
- "Cat {} have had enough of being petted. Skipping",
- cat_name.name
- );
- continue;
- }
-
- println!("Petting cat {}", cat_name.name);
-
- petting_capacity.capacity_left -= 1;
- }
-}
-
-fn main()
-{
- let mut world = World::new();
-
- world.register_system(*UPDATE_PHASE, pet_cats);
-
- world.create_entity((
- CatName { name: "Jasper".to_string() },
- Aggressivity::Medium,
- PettingCapacity { capacity_left: 5 },
- ));
-
- world.create_entity((
- CatName { name: "Otto".to_string() },
- PettingCapacity { capacity_left: 9 },
- ));
-
- world.create_entity((
- CatName { name: "Carrie".to_string() },
- PettingCapacity { capacity_left: 2 },
- Aggressivity::High,
- ));
-
- world.create_entity((
- CatName { name: "Tommy".to_string() },
- PettingCapacity { capacity_left: 1 },
- Aggressivity::Low,
- ));
-
- world.step();
-}
diff --git a/ecs/examples/relationship.rs b/ecs/examples/relationship.rs
deleted file mode 100644
index 4e94151..0000000
--- a/ecs/examples/relationship.rs
+++ /dev/null
@@ -1,56 +0,0 @@
-use ecs::pair::{Pair, Wildcard};
-use ecs::phase::START as START_PHASE;
-use ecs::{Component, Query, World};
-
-#[derive(Component)]
-struct Sword
-{
- attack_strength: u32,
-}
-
-#[derive(Component)]
-struct Player;
-
-#[derive(Component)]
-struct Health
-{
- health: u32,
-}
-
-#[derive(Component)]
-struct Holding;
-
-fn print_player_stats(player_query: Query<(&Player, &Health, Pair<Holding, Wildcard>)>)
-{
- for (_, health, target_sword) in &player_query {
- println!("Player health: {}", health.health);
-
- if let Some(sword_ent) = target_sword.get_target_ent() {
- let sword = sword_ent
- .get::<Sword>()
- .expect("Sword entity is missing sword component");
-
- println!("Player sword attack strength: {}", sword.attack_strength);
- }
- }
-}
-
-fn main()
-{
- let mut world = World::new();
-
- world.register_system(*START_PHASE, print_player_stats);
-
- let sword_uid = world.create_entity((Sword { attack_strength: 17 },));
-
- world.create_entity((
- Player,
- Health { health: 180 },
- Pair::builder()
- .relation::<Holding>()
- .target_id(sword_uid)
- .build(),
- ));
-
- world.step();
-}
diff --git a/ecs/examples/simple.rs b/ecs/examples/simple.rs
deleted file mode 100644
index 0169062..0000000
--- a/ecs/examples/simple.rs
+++ /dev/null
@@ -1,42 +0,0 @@
-use ecs::phase::START as START_PHASE;
-use ecs::{Component, Query, World};
-
-#[derive(Component)]
-struct SomeData
-{
- num: u64,
-}
-
-#[derive(Component)]
-struct Greeting
-{
- greeting: String,
-}
-
-fn say_hello(query: Query<(&SomeData, &Greeting)>)
-{
- for (data, greeting) in &query {
- println!("{}: {}", greeting.greeting, data.num);
- }
-}
-
-fn main()
-{
- let mut world = World::new();
-
- world.register_system(*START_PHASE, say_hello);
-
- world.create_entity((
- SomeData { num: 987_654 },
- Greeting {
- greeting: "Good afternoon".to_string(),
- },
- ));
-
- world.create_entity((
- SomeData { num: 345 },
- Greeting { greeting: "Good evening".to_string() },
- ));
-
- world.step();
-}
diff --git a/ecs/examples/with_local.rs b/ecs/examples/with_local.rs
deleted file mode 100644
index 7a36d0e..0000000
--- a/ecs/examples/with_local.rs
+++ /dev/null
@@ -1,70 +0,0 @@
-use ecs::component::local::Local;
-use ecs::phase::UPDATE as UPDATE_PHASE;
-use ecs::system::initializable::Initializable;
-use ecs::system::Into;
-use ecs::{Component, Query, World};
-
-#[derive(Component)]
-struct SomeData
-{
- num: u64,
-}
-
-#[derive(Component)]
-struct Name
-{
- name: String,
-}
-
-#[derive(Component)]
-struct SayHelloState
-{
- cnt: usize,
-}
-
-fn say_hello(query: Query<(&SomeData,)>, mut state: Local<SayHelloState>)
-{
- for (data,) in &query {
- println!("Hello there. Count {}: {}", state.cnt, data.num);
-
- state.cnt += 1;
- }
-}
-
-fn say_whats_up(query: Query<(&SomeData, &Name)>, mut state: Local<SayHelloState>)
-{
- for (data, name) in &query {
- println!(
- "Whats up, {}. Number is {}. Count {}",
- name.name, data.num, state.cnt
- );
-
- state.cnt += 1;
- }
-}
-
-fn main()
-{
- let mut world = World::new();
-
- world.register_system(
- *UPDATE_PHASE,
- say_hello
- .into_system()
- .initialize((SayHelloState { cnt: 0 },)),
- );
-
- world.register_system(
- *UPDATE_PHASE,
- say_whats_up
- .into_system()
- .initialize((SayHelloState { cnt: 0 },)),
- );
-
- world.create_entity((SomeData { num: 987_654 }, Name { name: "Bob".to_string() }));
-
- world.create_entity((SomeData { num: 345 },));
-
- world.step();
- world.step();
-}
diff --git a/ecs/examples/with_sole.rs b/ecs/examples/with_sole.rs
deleted file mode 100644
index 7e89b0a..0000000
--- a/ecs/examples/with_sole.rs
+++ /dev/null
@@ -1,61 +0,0 @@
-use ecs::pair::{ChildOf, Pair};
-use ecs::phase::{Phase, UPDATE as UPDATE_PHASE};
-use ecs::sole::Single;
-use ecs::{declare_entity, Component, Query, Sole, World};
-
-#[derive(Component)]
-struct Ammo
-{
- ammo_left: u32,
-}
-
-#[derive(Sole, Default)]
-struct AmmoCounter
-{
- counter: u32,
-}
-
-fn count_ammo(query: Query<(&Ammo,)>, mut ammo_counter: Single<AmmoCounter>)
-{
- for (ammo,) in &query {
- println!("Found {} ammo", ammo.ammo_left);
-
- ammo_counter.counter += ammo.ammo_left;
- }
-}
-
-fn print_total_ammo_count(ammo_counter: Single<AmmoCounter>)
-{
- println!("Total ammo count: {}", ammo_counter.counter);
-
- assert_eq!(ammo_counter.counter, 19);
-}
-
-declare_entity!(
- PRINT_AMMO_COUNT_PHASE,
- (
- Phase,
- Pair::builder()
- .relation::<ChildOf>()
- .target_id(*UPDATE_PHASE)
- .build()
- )
-);
-
-fn main()
-{
- let mut world = World::new();
-
- world.create_declared_entity(&PRINT_AMMO_COUNT_PHASE);
-
- world.register_system(*UPDATE_PHASE, count_ammo);
- world.register_system(*PRINT_AMMO_COUNT_PHASE, print_total_ammo_count);
-
- world.create_entity((Ammo { ammo_left: 4 },));
- world.create_entity((Ammo { ammo_left: 7 },));
- world.create_entity((Ammo { ammo_left: 8 },));
-
- world.add_sole(AmmoCounter::default()).unwrap();
-
- world.step();
-}
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2026-05-25 17:01:39 +0000