Behavior Tree addon

addons/beehave/nodes/decorators/decorator.gd

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+extends BeehaveNode
+
+class_name Decorator, "../../icons/category_decorator.svg"
+
+
+func _ready():
+	if self.get_child_count() != 1:
+		push_error("Beehave Error: Decorator %s should have only one child (NodePath: %s)" % [self.name, self.get_path()])

addons/beehave/nodes/decorators/failer.gd

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+extends Decorator
+
+class_name AlwaysFailDecorator, "../../icons/fail.svg"
+
+
+func tick(action, blackboard):
+	for c in get_children():
+		var response = c.tick(action, blackboard)
+		if response == RUNNING:
+			return RUNNING
+	return FAILURE

addons/beehave/nodes/decorators/inverter.gd

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+extends Decorator
+
+class_name InverterDecorator, "../../icons/inverter.svg"
+
+
+func tick(action, blackboard):
+	for c in get_children():
+		var response = c.tick(action, blackboard)
+
+		if response == SUCCESS:
+			return FAILURE
+		if response == FAILURE:
+			return SUCCESS
+
+		if c is Leaf and response == RUNNING:
+			blackboard.set("running_action", c)
+		return RUNNING

addons/beehave/nodes/decorators/limiter.gd

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+extends Decorator
+
+class_name LimiterDecorator, "../../icons/limiter.svg"
+
+onready var cache_key = 'limiter_%s' % self.get_instance_id()
+
+export (float) var max_count = 0
+
+func tick(actor, blackboard):
+	var current_count = blackboard.get(cache_key)
+
+	if current_count == null:
+		current_count = 0
+
+	if current_count <= max_count:
+		blackboard.set(cache_key, current_count + 1)
+		return self.get_child(0).tick(actor, blackboard)
+	else:
+		return FAILED

addons/beehave/nodes/decorators/succeeder.gd

@@ -0,0 +1,11 @@
+extends Decorator
+
+class_name AlwaysSucceedDecorator, "../../icons/succeed.svg"
+
+
+func tick(action, blackboard):
+	for c in get_children():
+		var response = c.tick(action, blackboard)
+		if response == RUNNING:
+			return RUNNING
+		return SUCCESS