Add chapter: 18

src/melee_combat_system.rs

@@ -2,11 +2,13 @@ use specs::prelude::*;
 
 use crate::components::{CombatStats, Name, SufferDamage, WantsToMelee};
 use crate::gamelog::GameLog;
-use crate::{DefenseBonus, Equipped, MeleePowerBonus};
+use crate::particle_system::ParticleBuilder;
+use crate::{DefenseBonus, Equipped, MeleePowerBonus, Position};
 
 pub struct MeleeCombatSystem {}
 
 impl<'a> System<'a> for MeleeCombatSystem {
+    #[allow(clippy::complexity)]
     type SystemData = (
         Entities<'a>,
         WriteExpect<'a, GameLog>,
@@ -17,6 +19,8 @@ impl<'a> System<'a> for MeleeCombatSystem {
         ReadStorage<'a, MeleePowerBonus>,
         ReadStorage<'a, DefenseBonus>,
         ReadStorage<'a, Equipped>,
+        WriteExpect<'a, ParticleBuilder>,
+        ReadStorage<'a, Position>,
     );
 
     fn run(&mut self, data: Self::SystemData) {
@@ -30,6 +34,8 @@ impl<'a> System<'a> for MeleeCombatSystem {
             melee_bonus,
             defense_bonus,
             equipped,
+            mut particle_builder,
+            positions,
         ) = data;
 
         for (entity, wants_melee, name, stats) in
@@ -58,6 +64,17 @@ impl<'a> System<'a> for MeleeCombatSystem {
                         }
                     }
 
+                    if let Some(pos) = positions.get(wants_melee.target) {
+                        particle_builder.request(
+                            pos.x,
+                            pos.y,
+                            rltk::RGB::named(rltk::ORANGE),
+                            rltk::RGB::named(rltk::BLACK),
+                            rltk::to_cp437('‼'),
+                            200.0,
+                        );
+                    }
+
                     let damage = i32::max(
                         0,
                         (stats.power + offensive_bonus) - (target_stats.defense + defensive_bonus),