From 988ddf1ebf47d62ed83ae59166b18228fbb01605 Mon Sep 17 00:00:00 2001
From: Toasterkitten <owen@ericfeldman.com>
Date: Thu, 25 Jun 2026 15:40:40 -0400
Subject: [PATCH] shop

---
 untitled/content.py        |  4 +++-
 untitled/rules.py          |  8 ++++++++
 untitled/screens/common.py |  7 +++++++
 untitled/screens/house.py  |  6 ++++--
 untitled/screens/shop.py   | 29 +++++++++++++++++++++++++++++
 5 files changed, 51 insertions(+), 3 deletions(-)
 create mode 100644 untitled/screens/shop.py

diff --git a/untitled/content.py b/untitled/content.py
index 5e39f38..13f89b6 100644
--- a/untitled/content.py
+++ b/untitled/content.py
@@ -8,7 +8,9 @@ BASE_HAPPINESS_DECAY_PER_HOUR = 2
 HUNGER_SADNESS_THRESHOLD = 30
 HUNGER_SADNESS_PENALTY_PER_HOUR = 5
 
-BASE_INVENTORY = {"food": 0, "medicine": 0, "catnip": 0}
+ITEMS = {"food": 3, "medicine": 5, "catnip": 5}
+
+BASE_INVENTORY = {item: 0 for item in ITEMS.keys()}
 
 CAT_COLORS = [
     "orange tabby",
diff --git a/untitled/rules.py b/untitled/rules.py
index 153cbba..8b0745b 100644
--- a/untitled/rules.py
+++ b/untitled/rules.py
@@ -52,3 +52,11 @@ def feed(cat, amount=100):
 def excite(cat, amount=100):
     cat.happiness += amount
     cat.happiness = _clamp(cat.happiness)
+
+
+def buy(player, item, price):
+    if price > player.money:
+        return False
+    player.money -= price
+    player.inventory[item] += 1
+    return True
diff --git a/untitled/screens/common.py b/untitled/screens/common.py
index cf63d48..7973fa7 100644
--- a/untitled/screens/common.py
+++ b/untitled/screens/common.py
@@ -1,4 +1,5 @@
 from untitled import ui
+from untitled.screens import shop
 
 
 def options():
@@ -10,3 +11,9 @@ def options():
                 return "save"
             case "Save and quit":
                 return "savequit"
+
+
+def go_to(save):
+    match ui.select("Where do you want to go?", ["The shop", "Back"]):
+        case "The shop":
+            shop.shop(save)
diff --git a/untitled/screens/house.py b/untitled/screens/house.py
index 1061be5..3042d11 100644
--- a/untitled/screens/house.py
+++ b/untitled/screens/house.py
@@ -1,7 +1,7 @@
 import time
 
 from untitled import generation, model, persistence, rules, ui
-from untitled.screens.common import options
+from untitled.screens.common import options, go_to
 
 
 def house(save: model.Save):
@@ -9,7 +9,7 @@ def house(save: model.Save):
     while True:
         match ui.select(
             "What do you want to do?",
-            ["Check on your cat", "Feed your cat", "Pet your cat", "Menu"],
+            ["Check on your cat", "Feed your cat", "Pet your cat", "Go to...", "Menu"],
         ):
             case "Check on your cat":
                 rules.reconcile(save.cat, time.time())
@@ -24,6 +24,8 @@ def house(save: model.Save):
                 rules.reconcile(save.cat, time.time())
                 rules.excite(save.cat)
                 print(f"You pet {save.cat.name}, {save.cat.name} is now happy.")
+            case "Go to...":
+                go_to(save)
             case "Menu":
                 result = options()
                 match result:
diff --git a/untitled/screens/shop.py b/untitled/screens/shop.py
new file mode 100644
index 0000000..82048bd
--- /dev/null
+++ b/untitled/screens/shop.py
@@ -0,0 +1,29 @@
+from untitled import ui, content, model, rules
+
+
+def shop(save: model.Save):
+    print("Welcome to the shop!")
+    while True:
+        match ui.select("What do you want to do?", ["Buy items", "Leave"]):
+            case "Buy items":
+                while True:
+                    print(f"You have ${save.player.money}.")
+                    item = ui.select(
+                        "Please choose an item to buy:",
+                        [
+                            ui.Choice(f"{item.capitalize()}: ${price}", (item, price))
+                            for item, price in content.ITEMS.items()
+                        ]
+                        + ["Back"],
+                    )
+                    if item == "Back":
+                        break
+                    if ui.confirm(
+                        f"Are you sure you want to buy {item[0]} for ${item[1]}?"
+                    ):
+                        if rules.buy(save.player, item[0], item[1]):
+                            print("Done!")
+                        else:
+                            print("You don't have enough money!")
+            case "Leave":
+                break