EnvEdit - A GRAPHICAL ENVIRONMENT EDITOR - Approaches towards a Fast and Simple Way of Building Complex Environments in Multi Agent Simulations Topics: Agent Models and Architectures; Agent Platforms and Interoperability; Programming Environments and Languages; Simulation In Proceedings of the 4th International Conference on Agents and Artificial Intelligence - Volume 1: ICAART, 305-308, 2012 , Vilamoura, Algarve, Portugal