ai refactor, mob spawns now take into account player level, small fixes

src/ai/turn_status_system.rs

@@ -0,0 +1,45 @@
+use crate::{gamelog, Confusion, Name, ParticleBuilder, Position, RunState, TakingTurn};
+use rltk::prelude::*;
+use specs::prelude::*;
+
+pub struct TurnStatusSystem {}
+
+impl<'a> System<'a> for TurnStatusSystem {
+    #[allow(clippy::type_complexity)]
+    type SystemData = (
+        WriteStorage<'a, TakingTurn>,
+        WriteStorage<'a, Confusion>,
+        Entities<'a>,
+        ReadExpect<'a, RunState>,
+        ReadStorage<'a, Name>,
+        ReadStorage<'a, Position>,
+        WriteExpect<'a, ParticleBuilder>,
+    );
+
+    fn run(&mut self, data: Self::SystemData) {
+        let (mut turns, mut confusion, entities, runstate, names, positions, mut particle_builder) = data;
+        if *runstate != RunState::Ticking {
+            return;
+        }
+        let mut remove_turn: Vec<Entity> = Vec::new();
+        let mut remove_confusion: Vec<Entity> = Vec::new();
+        for (entity, _turn, confused, name, pos) in (&entities, &mut turns, &mut confusion, &names, &positions).join() {
+            confused.turns -= 1;
+            if confused.turns < 1 {
+                remove_confusion.push(entity);
+                gamelog::Logger::new().npc_name(&name.name).colour(WHITE).append("snaps out of it.").log();
+                particle_builder.request(pos.x, pos.y, RGB::named(LIGHT_BLUE), RGB::named(BLACK), to_cp437('!'), 200.0);
+            } else {
+                remove_turn.push(entity);
+                gamelog::Logger::new().npc_name(&name.name).colour(WHITE).append("is confused.").log();
+                particle_builder.request(pos.x, pos.y, RGB::named(MAGENTA), RGB::named(BLACK), to_cp437('?'), 200.0);
+            }
+        }
+        for e in remove_turn {
+            turns.remove(e);
+        }
+        for e in remove_confusion {
+            confusion.remove(e);
+        }
+    }
+}