Initial commit of isometric Game Boy adventure prototype

2026-06-20 16:30:15 +02:00
commit 20a5d8604b
17 changed files with 927 additions and 0 deletions
@@ -0,0 +1,59 @@
+from pyboy import PyBoy
+from pyboy.utils import WindowEvent
+
+def main():
+    pyboy = PyBoy('hello_iso.gb', window='null', cgb=False)
+    # Let the game boot and generate the maze
+    for _ in range(60 * 2):
+        pyboy.tick()
+        
+    # Read player position from RAM
+    # player_lx at 0xC4E8, player_ly at 0xC4E9
+    lx = pyboy.memory[0xC4E8]
+    ly = pyboy.memory[0xC4E9]
+    print(f"Initial player coordinates in RAM: lx={lx}, ly={ly}")
+    
+    # Read maze array from RAM (7x7 starting at 0xC0B1)
+    maze = []
+    for y in range(7):
+        row = []
+        for x in range(7):
+            val = pyboy.memory[0xC0B1 + y * 7 + x]
+            row.append(val)
+        maze.append(row)
+        
+    print("\nMaze layout in RAM (0=wall, 1=path):")
+    for y, row in enumerate(maze):
+        row_str = f"{y:02d}: "
+        for x, val in enumerate(row):
+            if x == lx and y == ly:
+                row_str += "P" # Player
+            else:
+                row_str += str(val)
+        print(row_str)
+        
+    # Check neighbors of player
+    print(f"\nPlayer neighbors: Up={maze[ly-1][lx]}, Down={maze[ly+1][lx]}, Left={maze[ly][lx-1]}, Right={maze[ly][lx+1]}")
+    
+    # Try pressing Down (Down-Left)
+    print("\nSimulating pressing DOWN...")
+    pyboy.send_input(WindowEvent.PRESS_ARROW_DOWN)
+    pyboy.tick()
+    pyboy.send_input(WindowEvent.RELEASE_ARROW_DOWN)
+    for _ in range(30):
+        pyboy.tick()
+    print(f"Player coordinates after DOWN: lx={pyboy.memory[0xC4E8]}, ly={pyboy.memory[0xC4E9]}")
+    
+    # Try pressing Right (Down-Right)
+    print("\nSimulating pressing RIGHT...")
+    pyboy.send_input(WindowEvent.PRESS_ARROW_RIGHT)
+    pyboy.tick()
+    pyboy.send_input(WindowEvent.RELEASE_ARROW_RIGHT)
+    for _ in range(30):
+        pyboy.tick()
+    print(f"Player coordinates after RIGHT: lx={pyboy.memory[0xC4E8]}, ly={pyboy.memory[0xC4E9]}")
+    
+    pyboy.stop()
+
+if __name__ == "__main__":
+    main()