SimpleEnvironmentView.java

package aima.core.agent.impl;

import aima.core.agent.*;

/**
 * Simple environment view which uses the standard output stream to inform about
 * relevant events.
 * 
 * @author Ruediger Lunde
 */
public class SimpleEnvironmentView implements EnvironmentView {
	@Override
	public void notify(String msg) {
		System.out.println("Message: " + msg);
	}

	@Override
	public void agentAdded(Agent agent, Environment source) {
		int agentId = source.getAgents().indexOf(agent) + 1;
		System.out.println("Agent " + agentId + " added.");
	}

	@Override
	public void agentActed(Agent agent, Percept percept, Action action, Environment source) {
		StringBuilder builder = new StringBuilder();
		int agentId = source.getAgents().indexOf(agent) + 1;
		builder.append("Agent " + agentId + " acted.");
		builder.append("\n   Percept: " + percept.toString());
		builder.append("\n   Action: " + action.toString());
		System.out.println(builder.toString());
	}
}