Update app.py

app.py

@@ -95,19 +95,14 @@ async def perform_roll(interaction: discord.Interaction):
     user_id = interaction.user.id
     luck_multiplier = luck_multipliers.get(user_id, 1)
     
-    # Calculate total difficulty
-    total_difficulty = sum(pet['configData']['difficulty'] for pet in pets)
-
-    # Generate a random number between 0 and total_difficulty
-    random_value = random.uniform(0, total_difficulty)
-
-    # Select a pet based on the random value and luck multiplier
-    cumulative_probability = 0
-    for pet in sorted(pets, key=lambda x: x['configData']['difficulty'], reverse=True):
-        cumulative_probability += pet['configData']['difficulty'] * luck_multiplier
-        if random_value <= cumulative_probability:
-            rolled_pet = pet
-            break
+    # Sort pets by difficulty
+    sorted_pets = sorted(pets, key=lambda x: x['configData']['difficulty'])
+    
+    # Calculate the index based on luck
+    index = int((len(sorted_pets) - 1) * (1 - 1/luck_multiplier))
+    
+    # Select a random pet from the start of the list to the calculated index
+    rolled_pet = random.choice(sorted_pets[:index+1])
 
     pet_rap = next((pet for pet in rap_data['data'] if pet['configData']['id'] == rolled_pet['configName']), None)
 
@@ -153,14 +148,14 @@ async def perform_roll(interaction: discord.Interaction):
         if result:
             await interaction.followup.send(embed=result[0], view=result[1])
         else:
-            await interaction.followup.send("errer")
+            await interaction.followup.send("errer.")
 
     roll_again_button.callback = roll_again_callback
 
     view = discord.ui.View()
     view.add_item(roll_again_button)
 
-    if random.random() < 0.2:
+    if random.random() < 0.2: 
         increase_luck_button = discord.ui.Button(style=discord.ButtonStyle.success, label="Increase Luck", custom_id="increase_luck")
         
         async def increase_luck_callback(interaction: discord.Interaction):