define most app variables and begin working on skill check logic

ai_prompts/2.txt

@@ -1,9 +1,28 @@
 ###############################################
 Prompt to Kiro AI (Default):
 
-
+from now on, I will mostly be asking questions about approach, so please do not perform any actions or code edits unless explicitly requested. also, please be less verbose - I want nice, quick answers that provide the necessary context. How can I check if a file exists/isreadable for my loadSave function?
 
 Response:
 
+Two clean options:
+
+os.path.exists(path) — checks the file is there before opening.
+
+python
+
+import os
+if os.path.exists(path):
+    # open and read
+try/except — just attempt to open and catch the failure. This is the more Pythonic approach and also handles the "exists but unreadable/corrupt" case in one shot:
+
+python
+
+try:
+    with open(path) as f:
+        ...
+except (FileNotFoundError, IOError):
+    return defaultState()
+For loadSave, the try/except is the better fit since you also want to catch bad JSON — wrap json.load in the same block and catch json.JSONDecodeError too, falling back to a fresh default state on any failure.
 
 ###############################################

citations

@@ -9,3 +9,8 @@ Description: The main AI agent in kiro, used for most if not all of the promptin
 Source: Google Search / Google Search AI
 Description: Used infrequently just for general questions regarding python or graphics, no specific usage (and google search AI is just kind of always there)
 ###############################################
+
+###############################################
+Source: CMU Graphics Documentation (https://academy.cs.cmu.edu/cpcs-docs)
+Description: Refferred to for implementation and MVC architecture along with how to interface with graphics
+###############################################

main.py

@@ -10,6 +10,7 @@
 # =============================================================================
 
 from cmu_graphics import *
+import json
 
 
 # =============================================================================
@@ -44,19 +45,31 @@ def loadCreatures(path="creatures.tsv"):
     return creatures
 
 
-def loadSave(path):
+def loadSave(path="save.json"):
     # Load save.json and return the player's saved state (money, owned baits,
     # owned upgrades, current bait, caught log, etc.). If the file is missing
     # or unreadable, return a fresh default-state dict so a first-time player
     # starts cleanly. This is the only place that reads the save file.
-    pass
+    defaultState = {
+        "cash": 0,
+        "owned_baits": [],
+        "owned_upgrades": [],
+        "current_bait": "worm",
+        "catch_log": []
+    }
+    try:
+        with open(path, "r") as f:
+            return json.load(f)
+    except (FileNotFoundError, IOError):
+        return defaultState
 
 
-def writeSave(path, saveState):
+def writeSave(saveState, path="save.json"):
     # Serialize the current player state to save.json. Call this at key moments
     # (after a sale, after a purchase, on quit) so progress persists between
     # sessions. Keep the written structure identical to what loadSave expects.
-    pass
+    with open(path, "w") as f: #overwrite existing
+        f.write(json.dumps(saveState))
 
 
 # =============================================================================
@@ -66,17 +79,52 @@ def writeSave(path, saveState):
 # No drawing and no event handling here - just state.
 # =============================================================================
 
+AVAILABLE_UPGRADES = [ # (name, bonus_type, bonus_modifier, price)
+    #power mods
+    ("Smart Rod", "power", 2, 100),
+    ("Clever Rod", "power", 7, 350),
+    ("Intelligent Rod", "power", 10, 1500),
+    ("Genius Rod", "power", 20, 20000)
+]
+
 def onAppStart(app):
     # cmu_graphics entry point. Initialize ALL app.* state here:
     #   - window/layout constants (width, height, dock/water/grass regions)
     #   - app.creatures  (from loadCreatures)
     #   - app.save       (from loadSave) and derived player values
-    #   - app.scene      (which screen is active: 'dock', 'shop', 'catch', ...)
     #   - fishing state  (idle / waiting-for-bite / skill-check / result)
     #   - skill-check state placeholders (cursor angle, bars, speed, result)
     #   - app.stepsPerSecond for the game loop cadence
     # Delegates to the smaller setup helpers below to keep this readable.
-    pass
+    
+    #DRAWING CONSTANTS
+    app.width = 600
+    app.height = 400
+    app.background = 'lightSkyBlue'
+    app.waterColor = 'midnightBlue'
+    app.grassColor = 'seaGreen'
+    app.waterHeight = app.height // 3
+    app.waterBottom = app.height = app.waterHeight
+    app.grassHeight = 20
+    app.grassBottom = app.height - app.waterHeight - app.grassHeight
+
+    #GAME STATE/SETUP
+    app.stepsPerSecond = 30
+    app.creatures = loadCreatures()
+    app.save = loadSave()
+    app.scene = "idle" # idle, waiting-for-bite, skill-check, result, shopping, menu
+    
+    #SKILL CHECK
+    app.skillCheckAngle = 0
+    app.skillCheckSpeed = 1
+    app.skillCheckBars = []
+    app.skillCheckSpeed = 1
+    app.skillCheckFailed = False
+
+    #FISHING
+    app.fishingTimer = 0
+    app.hookedFish = None
+
 
 
 def resetFishingState(app):
@@ -102,6 +150,12 @@ def startSkillCheck(app, creature):
     # bar length/width. Also apply any owned upgrades that modify these values
     # (e.g. slower cursor, wider bars, extra forgiveness). Stores the resulting
     # parameters on app for the controller/view to use.
+    app.scene = "skill-check"
+    difficulty = creature["difficulty"]
+
+    fishingPower = 1 + sum(upgrade[2] for upgrade in AVAILABLE_UPGRADES if (upgrade[0] in app.save["owned_upgrades"] and upgrade[1] == "power"))
+
+    app.skillCheckSpeed = difficulty / fishingPower
     pass