import java.util.Collection;
/**
 * IAgent was too cumbersome -- this requires functions which do equivalent things
 * but with simpler signatures.
 * @author mds
 *
 */
public  interface  ISimpAgent<TMsg extends IMsg, TVars extends ILogicVarBundle> {

	/**
	 * Given a collection of messages, calculates the next state of the logic
	 * variables for this agent.  IAgent wrapper would call this after running
	 * AccumMsgs to create the message bag.
	 * @param bagMsg collection of messages to process (usually these should include
	 * the id of the sending agent!!!)
	 * @return next state of the logic variables for this agent (no control function)
	 */
	public TVars stateNext(TVars varsPrev, Collection<TMsg> bagMsg);
	
	/**
	 * Gets one individual IMsg to send to one specific agent.
	 * IAgent wrapper for this class would call this in a loop and push
	 * the results onto CommLink objects.
	 * @param varsPrev current state of this agent
	 * @param nIdDst UID of agent to send message to
	 * @return message to send to agent nIdDst
	 */
	public TMsg getMsg(TVars varsPrev, int nIdDst);
}