Fix wall drawing bug and get rid of clippy warnings

src/gui.rs

@@ -209,6 +209,7 @@ pub fn show_inventory(gs: &mut State, ctx: &mut Rltk) -> (ItemMenuResult, Option
 
     let mut equippable: Vec<Entity> = Vec::new();
     let mut j = 0;
+    #[allow(clippy::explicit_counter_loop)]
     for (entity, _pack, name) in (&entities, &backpack, &names)
         .join()
         .filter(|item| item.1.owner == *player_entity)
@@ -296,6 +297,7 @@ pub fn drop_item_menu(gs: &mut State, ctx: &mut Rltk) -> (ItemMenuResult, Option
 
     let mut equippable: Vec<Entity> = Vec::new();
     let mut j = 0;
+    #[allow(clippy::explicit_counter_loop)]
     for (entity, _pack, name) in (&entities, &backpack, &names)
         .join()
         .filter(|item| item.1.owner == *player_entity)
@@ -383,6 +385,7 @@ pub fn remove_item_menu(gs: &mut State, ctx: &mut Rltk) -> (ItemMenuResult, Opti
 
     let mut equippable: Vec<Entity> = Vec::new();
     let mut j = 0;
+    #[allow(clippy::explicit_counter_loop)]
     for (entity, _pack, name) in (&entities, &backpack, &names)
         .join()
         .filter(|item| item.1.owner == *player_entity)

src/map.rs

@@ -261,7 +261,7 @@ pub fn draw_map(ecs: &World, ctx: &mut Rltk) {
 }
 
 fn wall_glyph(map: &Map, x: i32, y: i32) -> rltk::FontCharType {
-    if x < 1 || x > map.width - 1 || y < 1 || y > map.height - 1 as i32 {
+    if x < 1 || x > map.width - 2 || y < 1 || y > map.height - 2 {
         return 35;
     }
 

src/monster_ai_system.rs

@@ -72,7 +72,7 @@ impl<'a> System<'a> for MonsterAI {
                     let path = rltk::a_star_search(
                         map.xy_idx(pos.x, pos.y) as i32,
                         map.xy_idx(player_pos.x, player_pos.y) as i32,
-                        &mut *map,
+                        &*map,
                     );
 
                     if path.success && path.steps.len() > 1 {

src/saveload_system.rs

@@ -92,7 +92,7 @@ macro_rules! deserialize_individually {
         $(
         DeserializeComponents::<NoError, _>::deserialize(
             &mut ( &mut $ecs.write_storage::<$type>(), ),
-            &mut $data.0, // entities
+            &$data.0, // entities
             &mut $data.1, // marker
             &mut $data.2, // allocater
             &mut $de,