Create app.py

app.py

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+import streamlit as st
+import json
+import random
+import time
+import os
+
+# Constants
+GRID_SIZE = 10
+MAX_PLAYERS = 10
+UPDATE_INTERVAL = 3
+GAME_STATE_FILE = "game_state.json"
+
+# Initialize session state
+if "player_name" not in st.session_state:
+    st.session_state.player_name = f"Player_{random.randint(1000, 9999)}"
+if "selected_player" not in st.session_state:
+    st.session_state.selected_player = None
+
+# Function to load game state
+def load_game_state():
+    if os.path.exists(GAME_STATE_FILE):
+        with open(GAME_STATE_FILE, "r") as f:
+            return json.load(f)
+    return {"players": {}}
+
+# Function to save game state
+def save_game_state(state):
+    with open(GAME_STATE_FILE, "w") as f:
+        json.dump(state, f)
+
+# Function to update player position
+def update_player_position(player_name, x, y):
+    state = load_game_state()
+    if player_name in state["players"]:
+        state["players"][player_name]["x"] = x
+        state["players"][player_name]["y"] = y
+    else:
+        if len(state["players"]) < MAX_PLAYERS:
+            state["players"][player_name] = {"x": x, "y": y}
+    save_game_state(state)
+
+# Streamlit app
+st.title("Multiplayer Grid Game")
+
+# Display player name and allow updates
+player_name = st.text_input("Your name", value=st.session_state.player_name)
+if player_name != st.session_state.player_name:
+    st.session_state.player_name = player_name
+    update_player_position(player_name, GRID_SIZE // 2, GRID_SIZE // 2)
+
+# Create grid
+grid = st.empty()
+
+# Main game loop
+while True:
+    # Load current game state
+    game_state = load_game_state()
+    
+    # Create grid representation
+    grid_repr = [["." for _ in range(GRID_SIZE)] for _ in range(GRID_SIZE)]
+    for player, pos in game_state["players"].items():
+        x, y = pos["x"], pos["y"]
+        grid_repr[y][x] = player[0].upper()
+    
+    # Display grid
+    grid.text("\n".join(" ".join(row) for row in grid_repr))
+    
+    # Handle player movement
+    col1, col2 = st.columns(2)
+    with col1:
+        if st.button("Select Your Character"):
+            st.session_state.selected_player = st.session_state.player_name
+    
+    with col2:
+        if st.session_state.selected_player:
+            target_x = st.number_input("Target X", min_value=0, max_value=GRID_SIZE-1, value=GRID_SIZE//2)
+            target_y = st.number_input("Target Y", min_value=0, max_value=GRID_SIZE-1, value=GRID_SIZE//2)
+            if st.button("Move"):
+                update_player_position(st.session_state.player_name, target_x, target_y)
+    
+    # Wait for update interval
+    time.sleep(UPDATE_INTERVAL)
+    st.experimental_rerun()