Added chapter 2.9

src/spawner.rs

@@ -1,10 +1,7 @@
 use rltk::{FontCharType, RandomNumberGenerator, RGB};
 use specs::prelude::*;
 
-use crate::{
-    BlocksTile, CombatStats, Item, MAP_WIDTH, MAX_ITEMS, MAX_MONSTER, Monster, Name, Player, Position,
-    Potion, Renderable, Viewshed,
-};
+use crate::{AreaOfEffect, BlocksTile, CombatStats, Confusion, Consumable, InflictsDamage, Item, MAP_WIDTH, MAX_ITEMS, MAX_MONSTER, Monster, Name, Player, Position, Potion, ProvidesHealing, Ranged, Renderable, Viewshed};
 use crate::rect::Rect;
 
 pub fn player(ecs: &mut World, player_x: i32, player_y: i32) -> Entity {
@@ -130,7 +127,7 @@ pub fn spawn_room(ecs: &mut World, room: &Rect) {
     for idx in item_spawn_points.iter() {
         let x = *idx % MAP_WIDTH;
         let y = *idx / MAP_WIDTH;
-        health_potion(ecs, x as i32, y as i32);
+        random_item(ecs, x as i32, y as i32);
     }
 }
 
@@ -147,6 +144,80 @@ pub fn health_potion(ecs: &mut World, x: i32, y: i32) {
             name: "Health Potion".to_string(),
         })
         .with(Item {})
-        .with(Potion { heal_amount: 8 })
+        .with(Consumable {})
+        .with(ProvidesHealing { heal_amount: 8 })
         .build();
 }
+
+pub fn magic_missile_scroll(ecs: &mut World, x: i32, y: i32) {
+    ecs.create_entity()
+        .with(Position { x, y })
+        .with(Renderable {
+            glyph: rltk::to_cp437(')'),
+            fg: RGB::named(rltk::CYAN),
+            bg: RGB::named(rltk::BLACK),
+            render_order: 2,
+        })
+        .with(Name {
+            name: "Magic Missile Scroll".to_string(),
+        })
+        .with(Item {})
+        .with(Consumable {})
+        .with(Ranged { range: 6 })
+        .with(InflictsDamage { damage: 8 })
+        .build();
+}
+
+pub fn fireball_scroll(ecs: &mut World, x: i32, y: i32) {
+    ecs.create_entity()
+        .with(Position { x, y })
+        .with(Renderable {
+            glyph: rltk::to_cp437(')'),
+            fg: RGB::named(rltk::CYAN),
+            bg: RGB::named(rltk::BLACK),
+            render_order: 2,
+        })
+        .with(Name {
+            name: "Fireball Scroll".to_string(),
+        })
+        .with(Item {})
+        .with(Consumable {})
+        .with(Ranged { range: 6 })
+        .with(InflictsDamage { damage: 20 })
+        .with(AreaOfEffect { radius: 3 })
+        .build();
+}
+
+pub fn confusion_scroll(ecs: &mut World, x: i32, y: i32) {
+    ecs.create_entity()
+        .with(Position { x, y })
+        .with(Renderable {
+            glyph: rltk::to_cp437(')'),
+            fg: RGB::named(rltk::CYAN),
+            bg: RGB::named(rltk::BLACK),
+            render_order: 2,
+        })
+        .with(Name {
+            name: "Confusion Scroll".to_string(),
+        })
+        .with(Item {})
+        .with(Consumable {})
+        .with(Ranged { range: 6 })
+        .with(Confusion { turns: 4 })
+        .build();
+}
+
+
+pub fn random_item(ecs: &mut World, x: i32, y: i32) {
+    let roll: i32;
+    {
+        let mut rng = ecs.write_resource::<RandomNumberGenerator>();
+        roll = rng.roll_dice(1, 4);
+    }
+    match roll {
+        1 => health_potion(ecs, x, y),
+        2 => fireball_scroll(ecs, x, y),
+        3 => confusion_scroll(ecs, x, y),
+        _ => magic_missile_scroll(ecs, x, y),
+    }
+}