Placing items

src/main.rs

@@ -46,6 +46,7 @@ const PANEL_Y: i32 = SCREEN_HEIGHT - PANEL_HEIGHT;
 const MSG_X: i32 = BAR_WIDTH + 2;
 const MSG_WIDTH: i32 = SCREEN_WIDTH - BAR_WIDTH - 2;
 const MSG_HEIGHT: usize = PANEL_HEIGHT as usize - 1;
+const MAX_ROOM_ITEMS: i32 = 2;
 
 struct Tcod {
   root: Root,
@@ -178,6 +179,7 @@ type Map = Vec<Vec<Tile>>;
 struct Game {
   map: Map,
   messages: Messages,
+  inventory: Vec<Object>,
 }
 
 // A rectangle on the map, used to characterise a room.
@@ -269,6 +271,11 @@ impl DeathCallback {
   }
 }
 
+#[derive(Clone, Copy, Debug, PartialEq)]
+enum Item {
+  Heal,
+}
+
 fn handle_keys(tcod: &mut Tcod, game: &mut Game, objects: &mut Vec<Object>) -> PlayerAction {
   use tcod::input::Key;
   use tcod::input::KeyCode::*;
@@ -380,6 +387,7 @@ fn create_v_tunnel(y1: i32, y2: i32, x: i32, map: &mut Map) {
 }
 
 fn place_objects(room: Rect, map: &Map, objects: &mut Vec<Object>) {
+  // Generate some monsters
   let num_monsters = rand::thread_rng().gen_range(0, MAX_ROOM_MONSTERS + 1);
 
   for _ in 0..num_monsters {
@@ -417,6 +425,22 @@ fn place_objects(room: Rect, map: &Map, objects: &mut Vec<Object>) {
       objects.push(monster);
     }
   }
+
+  // Generate some items
+  let num_items = rand::thread_rng().gen_range(0, MAX_ROOM_ITEMS + 1);
+
+  for _ in 0..num_items {
+    // Choose random spot for this item
+    let x = rand::thread_rng().gen_range(room.x1 + 1, room.x2);
+    let y = rand::thread_rng().gen_range(room.y1 + 1, room.y2);
+
+    // Only place it if the tile is note blocked
+    if !is_blocked(x, y, map, objects) {
+      // Create a healing potion
+      let mut object = Object::new(x, y, '!', "healing potion", VIOLET, false);
+      objects.push(object);
+    }
+  }
 }
 
 fn is_blocked(x: i32, y: i32, map: &Map, objects: &[Object]) -> bool {
@@ -570,6 +594,24 @@ fn get_names_under_mouse(mouse: Mouse, objects: &[Object], fov_map: &FovMap) ->
   names.join(", ")
 }
 
+fn pick_item_up(object_id: usize, game: &mut Game, objects: &mut Vec<Object>) {
+  if game.inventory.len() >= 26 {
+    game.messages.add(
+      format!(
+        "Your inventory is full, cannot pick up {}.",
+        objects[object_id].name
+      ),
+      RED,
+    );
+  } else {
+    let item = objects.swap_remove(object_id);
+    game
+      .messages
+      .add(format!("You picked up a {}!", item.name), GREEN);
+    game.inventory.push(item);
+  }
+}
+
 fn render_all(tcod: &mut Tcod, game: &mut Game, objects: &[Object], fov_recompute: bool) {
   if fov_recompute {
     let player = &objects[PLAYER];
@@ -718,6 +760,7 @@ fn main() {
     // Generate map
     map: make_map(&mut objects),
     messages: Messages::new(),
+    inventory: vec![],
   };
 
   // Populate FOV map, according to generated map