import fife
from scripts.common.common import ProgrammingError

class Agent(fife.InstanceActionListener):
	def __init__(self, model, agentName, layer, uniqInMap=True):
		fife.InstanceActionListener.__init__(self)
		self.model = model
		self.agentName = agentName
		self.layer = layer
		if uniqInMap:
			self.agent = layer.getInstance(agentName)
			self.agent.addActionListener(self)

	def onInstanceActionFinished(self, instance, action):
		raise ProgrammingError('No OnActionFinished defined for Agent')

	def start(self):
		raise ProgrammingError('No start defined for Agent')


def create_anonymous_agents(model, objectName, layer, agentClass):
	agents = []
	instances = [a for a in layer.getInstances() if a.getObject().getId() == objectName]
	i = 0
	for a in instances:
		agentName = '%s:i:%d' % (objectName, i)
		i += 1
		agent = agentClass(model, agentName, layer, False)
		agent.agent = a
		a.addActionListener(agent)
		agents.append(agent)
	return agents