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

src/ai/energy_system.rs

@@ -32,6 +32,7 @@ impl<'a> System<'a> for EnergySystem {
             if energy.current >= TURN_COST {
                 energy.current -= TURN_COST;
                 crate::gamelog::record_event("turns", 1);
+                // Handle spawning mobs each turn
                 if LOG_TICKS {
                     console::log(format!("===== TURN {} =====", crate::gamelog::get_event_count("turns")));
                 }

src/ai/mod.rs

@@ -1,4 +1,6 @@
 mod energy_system;
 pub use energy_system::{EnergySystem, NORMAL_SPEED};
-mod turn_status;
-pub use turn_status::TurnStatusSystem;
+mod turn_status_system;
+pub use turn_status_system::TurnStatusSystem;
+mod quip_system;
+pub use quip_system::QuipSystem;

src/ai/quip_system.rs

@@ -0,0 +1,38 @@
+use crate::{gamelog, Name, Quips, TakingTurn, Viewshed};
+use rltk::prelude::*;
+use specs::prelude::*;
+
+pub struct QuipSystem {}
+
+impl<'a> System<'a> for QuipSystem {
+    #[allow(clippy::type_complexity)]
+    type SystemData = (
+        WriteStorage<'a, Quips>,
+        ReadStorage<'a, Name>,
+        ReadStorage<'a, TakingTurn>,
+        ReadExpect<'a, Point>,
+        ReadStorage<'a, Viewshed>,
+        WriteExpect<'a, RandomNumberGenerator>,
+    );
+
+    fn run(&mut self, data: Self::SystemData) {
+        let (mut quips, names, turns, player_pos, viewsheds, mut rng) = data;
+        for (quip, name, viewshed, _turn) in (&mut quips, &names, &viewsheds, &turns).join() {
+            if !quip.available.is_empty() && viewshed.visible_tiles.contains(&player_pos) && rng.roll_dice(1, 6) == 1 {
+                let quip_index = if quip.available.len() == 1 {
+                    0
+                } else {
+                    (rng.roll_dice(1, quip.available.len() as i32) - 1) as usize
+                };
+                gamelog::Logger::new()
+                    .append("The")
+                    .npc_name(&name.name)
+                    .append_n("says \"")
+                    .append_n(&quip.available[quip_index])
+                    .append("\"")
+                    .log();
+                quip.available.remove(quip_index);
+            }
+        }
+    }
+}