Update analyzer.py, commander.py and three other files

nullptr/models/base.py

@@ -12,7 +12,10 @@ class Base:
     self.symbol = symbol
   
   def __hash__(self):
-    return hash(self.symbol)
+    return hash((str(type(self)), self.symbol))
+  
+  def __eq__(self, other):
+    return self.symbol == other.symbol and type(self) == type(other)
     
   def seta(self, attr,  d, name=None):
     if name is None:

nullptr/models/system.py

@@ -21,4 +21,4 @@ class System(Base):
     return f'atlas/{sector}/{symbol[0:1]}/{self.symbol}.{self.ext()}'
   
   def distance(self, other):
-    return sqrt((self.x - other.x) ** 2 + (self.y - other.y) ** 2)
+    return int(sqrt((self.x - other.x) ** 2 + (self.y - other.y) ** 2))