Allow inspecting things for sale in shops.

blastmud_game/src/message_handler/user_commands/help/registered.yaml

@@ -49,7 +49,12 @@ northwest: *movement
 up: *movement
 down: *movement
 in: *movement
-look: &look Try <bold>look<reset>, <bold>l<reset>, <bold>examine<reset> or <bold>ex<reset> to look at the current room. Follow it with the name of an exit to look at an adjacent room. Or name an object or player in the room to look at that.
+look: &look >-
+  Try <bold>look<reset>, <bold>l<reset>, <bold>examine<reset> or <bold>ex<reset> to look at the current room.
+  Follow it with the name of an exit to look at an adjacent room.
+  Or name an object or player in the room to look at that.
+  You can also use <bold>look at<reset> thing <bold>for sale<reset> while in a shop to inspect the wares before
+  you buy.
 l: *look
 ex: *look
 read: *look

blastmud_game/src/message_handler/user_commands/look.rs

@@ -20,7 +20,7 @@ use crate::{
     static_content::{
         dynzone,
         possession_type::{possession_data, recipe_craft_by_recipe},
-        room::{self, Direction},
+        room::{self, room_map_by_code, Direction},
         species::species_info_map,
     },
 };
@@ -706,6 +706,38 @@ pub async fn direction_to_item(
     Ok(trans.find_item_by_type_code("room", &new_room.code).await?)
 }
 
+async fn describe_store_item(
+    ctx: &VerbContext<'_>,
+    player_item: &Item,
+    location_type: &str,
+    location_code: &str,
+    item: &str,
+) -> UResult<()> {
+    if location_type != "room" {
+        user_error("Nothing is for sale here.".to_owned())?;
+    }
+    let room = room_map_by_code()
+        .get(location_code)
+        .ok_or_else(|| UserError("Couldn't find your room to look.".to_owned()))?;
+    if room.stock_list.is_empty() {
+        user_error("Nothing is for sale here.".to_owned())?
+    }
+    let (poss_type, _poss_data) = room
+        .stock_list
+        .iter()
+        .filter(|rs| rs.can_buy)
+        .filter_map(|rs| match possession_data().get(&rs.possession_type) {
+            Some(pd) => Some((rs.possession_type.clone(), pd)),
+            None => None,
+        })
+        .find(|(_, pd)| {
+            pd.display.starts_with(item) || pd.aliases.iter().any(|a| a.starts_with(item))
+        })
+        .ok_or_else(|| UserError("Couldn't find anything like that for sale.".to_owned()))?;
+    let tmp_item: Item = poss_type.clone().into();
+    describe_normal_item(&player_item, ctx, &tmp_item).await
+}
+
 pub struct Verb;
 #[async_trait]
 impl UserVerb for Verb {
@@ -722,6 +754,9 @@ impl UserVerb for Verb {
         if rem_trim.starts_with("in ") {
             rem_trim = rem_trim[3..].trim_start().to_owned();
         }
+        if rem_trim.starts_with("at ") {
+            rem_trim = rem_trim[3..].trim_start().to_owned();
+        }
         let use_location = if player_item.death_data.is_some() {
             "room/repro_xv_respawn"
         } else {
@@ -730,6 +765,18 @@ impl UserVerb for Verb {
         let (heretype, herecode) = use_location
             .split_once("/")
             .unwrap_or(("room", "repro_xv_chargen"));
+
+        if rem_trim.ends_with(" for sale") {
+            return Ok(describe_store_item(
+                ctx,
+                &player_item,
+                heretype,
+                herecode,
+                rem_trim[0..(rem_trim.len() - 9)].trim_end(),
+            )
+            .await?);
+        }
+
         let item: Arc<Item> = if rem_trim == "" {
             ctx.trans
                 .find_item_by_type_code(heretype, herecode)
@@ -838,5 +885,6 @@ impl UserVerb for Verb {
         Ok(())
     }
 }
+
 static VERB_INT: Verb = Verb;
 pub static VERB: UserVerbRef = &VERB_INT as UserVerbRef;