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PathNodeRule.gd
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PathNodeRule.gd
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extends NodeRule
class_name PathNodeRule
func check_correctness(local_node: PuzzleNode) -> bool:
if local_node.connections.size() > 1:
return false
if local_node.connections.is_empty():
return false
var found_good_node := false
var next_checks: Array = [local_node]
var already_checked: Array = []
while next_checks.size() > 0:
var currently_checking = next_checks.pop_back()
already_checked.append(currently_checking)
for neighbor in currently_checking.connections:
if neighbor in already_checked or neighbor == local_node:
continue
if neighbor.node_rule is PathNodeRule:
var good_node :bool = neighbor.node_rule.color == color or neighbor.node_rule.color == COLORS.black or color == COLORS.black
if not good_node:
return false
else:
found_good_node = true
next_checks.append(neighbor)
return found_good_node