2024(6): troubleshooting be whut

2024/06/part1.py

@@ -3,7 +3,7 @@ from enum import Enum
 import copy
 
 
-verbose = False
+verbose = True
 
 class Map:
 	"""
@@ -102,6 +102,7 @@ class Map:
 		self.trace.append(self.pos)
 		self.direction = self.map[self.pos]
 		self.map[self.pos] = self.Tiles.FREE.value
+		self.pos_counter = np.zeros(self.map.shape)
 
 	class LoopException(Exception):
 		"""
@@ -128,6 +129,7 @@ class Map:
 			# TODO: Really take a step! Do not only turn.
 			self.pos = self.next_pos()
 			self.trace.append(self.pos)
+			self.pos_counter[self.pos] += 1
 			return True
 		elif next_tile == self.Tiles.OBSTACLE:
 			self.direction = self.next_direction(self.direction)
@@ -158,7 +160,7 @@ class Map:
 		least twice from at least one direction.
 		"""
 
-		return self.trace.count(self.pos) > 4
+		return self.pos_counter[self.pos] > 4
 
 	def copy(self):
 		if verbose:

2024/06/part2.py

@@ -19,13 +19,14 @@ position; see Pigeonhole principle).
 
 if __name__ == "__main__":
 	m = Map()
-	#m.load_map("testinput")
-	m.load_map("input")
+	m.load_map("testinput")
+	#m.load_map("input")
 
 	# Prepare forked map for speed
-	forked_map = m.copy()
-	#forked_map = Map()
+	#forked_map = m.copy()
+	forked_map = Map()
 	#forked_map.load_map("input")
+	forked_map.load_map("testinput")
 	begin_pos = m.pos
 	begin_direction = m.direction
 
@@ -42,11 +43,14 @@ if __name__ == "__main__":
 		#forked_map = Map()
 		#forked_map.load_map("input")
 		#forked_map.map = m.map.copy()
+		print(f"Forking map, setting obstacle at {m.next_pos()}, resetting current {m.pos} to {m.map[m.pos]}")
+		forked_map.show()
 		forked_map.map[m.next_pos()] = Map.Tiles.OBSTACLE.value
 		forked_map.map[m.pos] = m.map[m.pos]
 		forked_map.pos = begin_pos
 		forked_map.direction = begin_direction
 		forked_map.trace = [begin_pos]
+		forked_map.show()
 		print(f"Forking at {forked_map.next_pos()}... ", end="")
 		try:
 			while forked_map.step():
@@ -57,8 +61,8 @@ if __name__ == "__main__":
 		else:
 			print("no loop.")
 		i += 1
-		if i > 100:
-			break
+		#if i > 100:
+		#	break
 		#m.show()
 	#print(len(m.trace), m.trace)
 	#print(len(set(m.trace)))