final AbstractEnvironment<?> fatherEnv,
final ParCollection params) {
super(ident, id, fatherEnv, params);
this.pars = params;
this.envVisualizerObject = new StandardVisualizer(this);
this.agents2D = new HashMap<Integer, AgentType>();
this.collidingAgents = new HashMap<Integer, AgentType>();
this.agentPositions = new HashMap<Integer, Vector2D>();
this.agentAngles = new HashMap<Integer, Double>();