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

nullptr/analyzer.py

@@ -1,7 +1,28 @@
 from nullptr.models.marketplace import Marketplace
 from nullptr.models.jumpgate import Jumpgate
 from nullptr.models.system import System
+from dataclasses import dataclass
 
+@dataclass
+class SearchNode:
+  system: System
+  parent: 'SearchNode'
+
+  def __hash__(self):
+    return hash(self.system.symbol)
+    
+  def path(self):
+    result = []
+    n = self
+    while n is not None:
+      result.append(n.system)
+      n = n.parent
+    result.reverse()
+    return result
+    
+  def __repr__(self):
+    return self.system.symbol
+ 
 class Analyzer:
   def __init__(self, store):
     self.store = store
@@ -15,28 +36,22 @@ class Analyzer:
   def get_jumpgate(self, system):
     gates = self.store.all_members(system, Jumpgate)
     return next(gates, None)
-    
-  def find_path(self, orig, to):
-    if orig == to: return []
-    jg = self.get_jumpgate(orig)
-    if jg is None: 
-      print(f'{orig} no jg')
-      return None
-    best_distance = orig.distance(to)
-    best_hop = None
-    for hop_str in jg.systems:
-      hop = self.store.get(System, hop_str)
-      if hop is None: 
-        print(f'{hop_str} hopnon')
-        continue
-      dist = hop.distance(to)
-      if dist < best_distance:
-        best_distance = dist
-        best_hop = hop
-    if best_hop is None: 
-      print('nobest')
-      return None
-    print(best_hop, best_distance)
-    tail = self.find_path(best_hop, to)
-    if tail is None: return None
-    return [best_hop] + tail
+
+   
+  def find_path(self, orig, to, depth=100):
+    if depth < 1: return None
+    if type(orig) == System:
+      orig = set([SearchNode(orig,None)])
+    result = [n for n in orig if n.system==to]
+    if len(result) > 0:
+      return result[0].path()
+    dest = set()
+    for o in orig:
+      jg = self.get_jumpgate(o.system)
+      if jg is None: continue
+      for s in jg.systems:
+        system = self.store.get(System, s)
+        if system is None: continue
+        dest.add(SearchNode(system, o))
+    if len(dest) == 0: return None
+    return  self.find_path(dest, to, depth-1)

nullptr/commander.py

@@ -87,5 +87,7 @@ class Commander(CommandLine):
   def do_path(self):
     orig = self.ask_obj(System, 'from: ')
     dest = self.ask_obj(System, 'to: ')
+    # orig = self.store.get(System, 'X1-KS52')
+    # dest = self.store.get(System, 'X1-DA90')
     path = self.analyzer.find_path(orig, dest)
     pprint(path)

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))

nullptr/store.py

@@ -71,6 +71,7 @@ class Store:
     self.data[typ][symbol] = obj
     if issubclass(typ, SystemMember):
       system_str = obj.system()
+      
       if system_str not in self.system_members:
         self.system_members[system_str] = set()
       self.system_members[system_str].add(obj)
@@ -101,6 +102,8 @@ class Store:
   def all_members(self, system, typ=None):
     if type(system) == System:
       system = system.symbol
+    if system not in self.system_members:
+      return 
     for m in self.system_members[system]:
       if typ is None or type(m) == typ:
         yield m