Complete Section 5.9

src/gui.rs

@@ -1,3 +1,5 @@
+use std::cmp::Ordering;
+
 use ::rltk::{Point, Rltk, VirtualKeyCode, RGB};
 use ::specs::prelude::*;
 
@@ -164,13 +166,12 @@ fn draw_attribute(name: &str, attribute: &Attribute, y: i32, ctx: &mut Rltk) {
     let attr_gray = RGB::from_hex("#CCCCCC").expect("Oops");
     ctx.print_color(50, y, attr_gray, black, name);
 
-    let color = if attribute.modifiers < 0 {
-        RGB::from_f32(1.0, 0.0, 0.0)
-    } else if attribute.modifiers == 0 {
-        RGB::named(rltk::WHITE)
-    } else {
-        RGB::from_f32(0.0, 1.0, 0.0)
+    let color = match attribute.modifiers.cmp(&0) {
+        Ordering::Less => RGB::from_f32(1.0, 0.0, 0.0),
+        Ordering::Equal => RGB::named(rltk::WHITE),
+        Ordering::Greater => RGB::from_f32(0.0, 1.0, 0.0),
     };
+
     ctx.print_color(
         67,
         y,
@@ -267,28 +268,28 @@ fn draw_tooltips(ecs: &World, ctx: &mut Rltk) {
                 let mut s = String::new();
                 if attr.might.bonus < 0 {
                     s += "Weak. "
-                } else if attr.might.bonus > 0 {
+                }
+                if attr.might.bonus > 0 {
                     s += "String. "
                 }
-
                 if attr.quickness.bonus < 0 {
                     s += "Clumsy. "
-                } else if attr.quickness.bonus > 0 {
+                }
+                if attr.quickness.bonus > 0 {
                     s += "Agile. "
                 }
-
                 if attr.fitness.bonus < 0 {
                     s += "Unhealthy. "
-                } else if attr.fitness.bonus > 0 {
+                }
+                if attr.fitness.bonus > 0 {
                     s += "Healthy. "
                 }
-
                 if attr.intelligence.bonus < 0 {
                     s += "Unintelligent. "
-                } else if attr.intelligence.bonus > 0 {
+                }
+                if attr.intelligence.bonus > 0 {
                     s += "Smart. "
                 }
-
                 if s.is_empty() {
                     s = "Quite Average".to_string();
                 }

src/player.rs

@@ -193,7 +193,70 @@ fn skip_turn(ecs: &mut World) -> RunState {
     RunState::PlayerTurn
 }
 
+fn use_consumable_hotkey(gs: &mut State, key: i32) -> RunState {
+    use crate::components::{Consumable, InBackpack, Ranged, WantsToUseItem};
+
+    let consumables = gs.ecs.read_storage::<Consumable>();
+    let backpack = gs.ecs.read_storage::<InBackpack>();
+    let player_entity = gs.ecs.fetch::<Entity>();
+    let entities = gs.ecs.entities();
+    let mut carried_consumables = Vec::new();
+
+    for (entity, carried_by, _consumable) in (&entities, &backpack, &consumables).join() {
+        if carried_by.owner == *player_entity {
+            carried_consumables.push(entity);
+        }
+    }
+
+    if (key as usize) < carried_consumables.len() {
+        if let Some(ranged) = gs
+            .ecs
+            .read_storage::<Ranged>()
+            .get(carried_consumables[key as usize])
+        {
+            return RunState::ShowTargeting {
+                range: ranged.range,
+                item: carried_consumables[key as usize],
+            };
+        }
+
+        let mut intent = gs.ecs.write_storage::<WantsToUseItem>();
+        intent
+            .insert(
+                *player_entity,
+                WantsToUseItem {
+                    item: carried_consumables[key as usize],
+                    target: None,
+                },
+            )
+            .expect("Unable to insert intent to use item.");
+
+        return RunState::PlayerTurn;
+    }
+
+    RunState::PlayerTurn
+}
+
 pub fn player_input(gs: &mut State, ctx: &mut Rltk) -> RunState {
+    // Hotkeys
+    if ctx.shift && ctx.key.is_some() {
+        let key: Option<i32> = match ctx.key.unwrap() {
+            VirtualKeyCode::Key1 => Some(1),
+            VirtualKeyCode::Key2 => Some(2),
+            VirtualKeyCode::Key3 => Some(3),
+            VirtualKeyCode::Key4 => Some(4),
+            VirtualKeyCode::Key5 => Some(5),
+            VirtualKeyCode::Key6 => Some(6),
+            VirtualKeyCode::Key7 => Some(7),
+            VirtualKeyCode::Key8 => Some(8),
+            VirtualKeyCode::Key9 => Some(9),
+            _ => None,
+        };
+        if let Some(key) = key {
+            return use_consumable_hotkey(gs, key - 1);
+        }
+    }
+
     // Mac OS is special when it comes to the numpad. Instead of reporting
     // the keys as Numpad-specific numbers, it reports the number row scan
     // codes. The quick fix is to match on both types of number scan codes.