Add chapter: 18

src/main.rs

@@ -14,7 +14,10 @@ use player::*;
 use visibility_system::*;
 
 use crate::gamelog::GameLog;
-use crate::inventory_system::{ItemCollectionSystem, ItemDropSystem, ItemRemoveSystem, ItemUseSystem};
+use crate::inventory_system::{
+    ItemCollectionSystem, ItemDropSystem, ItemRemoveSystem, ItemUseSystem,
+};
+use crate::particle_system::ParticleSpawnSystem;
 
 mod components;
 mod damage_system;
@@ -25,6 +28,7 @@ mod map;
 mod map_indexing_system;
 mod melee_combat_system;
 mod monster_ai_system;
+mod particle_system;
 mod player;
 mod random_table;
 mod rect;
@@ -221,6 +225,9 @@ impl State {
         let mut remove_items = ItemRemoveSystem {};
         remove_items.run_now(&self.ecs);
 
+        let mut particle_spawn = ParticleSpawnSystem {};
+        particle_spawn.run_now(&self.ecs);
+
         self.ecs.maintain();
     }
 }
@@ -234,6 +241,7 @@ impl GameState for State {
         }
 
         ctx.cls();
+        particle_system::cull_dead_particles(&mut self.ecs, ctx);
 
         match new_run_state {
             RunState::MainMenu { .. } => {}
@@ -392,7 +400,9 @@ impl GameState for State {
                     gui::GameOverResult::NoSelection => {}
                     gui::GameOverResult::QuitToMenu => {
                         self.game_over_cleanup();
-                        new_run_state = RunState::MainMenu { menu_selection: gui::MainMenuSelection::NewGame };
+                        new_run_state = RunState::MainMenu {
+                            menu_selection: gui::MainMenuSelection::NewGame,
+                        };
                     }
                 }
             }
@@ -417,6 +427,7 @@ fn main() -> rltk::BError {
     let mut gs = State { ecs: World::new() };
 
     gs.ecs.insert(rltk::RandomNumberGenerator::new());
+    gs.ecs.insert(particle_system::ParticleBuilder::new());
 
     gs.ecs.register::<Position>();
     gs.ecs.register::<Renderable>();
@@ -446,6 +457,7 @@ fn main() -> rltk::BError {
     gs.ecs.register::<MeleePowerBonus>();
     gs.ecs.register::<DefenseBonus>();
     gs.ecs.register::<WantsToRemoveItem>();
+    gs.ecs.register::<ParticleLifetime>();
 
     gs.ecs.insert(SimpleMarkerAllocator::<SerializeMe>::new());