Fixed crash

tools/editortool/map/chunk.py

@@ -1,14 +1,53 @@
-from editortool.map.chunk import Tile
+import json
+import os
+from dusk.event import Event
 
 class Chunk:
-  def __init__(self, x=0, y=0, z=0, size_x=1, size_y=1, size_z=1):
+  def __init__(self, map, x, y, z):
+    self.map = map
     self.x = x
     self.y = y
     self.z = z
-    self.data = [[[Tile() for _ in range(size_z)] for _ in range(size_y)] for _ in range(size_x)]
+    self.current = {}
+    self.original = {}
+    self.onChunkData = Event()
 
-  def draw(self):
-    for x in range(len(self.data)):
-      for y in range(len(self.data[x])):
-        for z in range(len(self.data[x][y])):
-          self.data[x][y][z].draw(x, y, z)
+  def load(self):
+    fname = self.getFilename()
+    if not fname or not os.path.exists(fname):
+      self.new()
+      return
+    try:
+      with open(fname, 'r') as f:
+        self.current = json.load(f)
+      self.original = json.loads(json.dumps(self.current))  # Deep copy
+      self.onChunkData.invoke(self.current)
+    except Exception as e:
+      raise RuntimeError(f"Failed to load chunk file: {e}")
+
+  def save(self):
+    fname = self.getFilename()
+    if not fname:
+      raise ValueError("No filename specified for saving chunk.")
+    try:
+      with open(fname, 'w') as f:
+        json.dump(self.current, f, indent=2)
+      self.original = json.loads(json.dumps(self.current))  # Deep copy
+    except Exception as e:
+      raise RuntimeError(f"Failed to save chunk file: {e}")
+
+  def new(self):
+    self.current = {}
+    self.original = {}
+    self.onChunkData.invoke(self.current)
+
+  def isDirty(self):
+    return json.dumps(self.current, sort_keys=True) != json.dumps(self.original, sort_keys=True)
+
+  def getFilename(self):
+    if not self.map or not hasattr(self.map, 'getMapDirectory'):
+      return None
+    dir_path = self.map.getMapDirectory()
+    if dir_path is None:
+      return None
+    return f"{dir_path}/{self.x}_{self.y}_{self.z}.json"