Turtles and patches can interact with one another. This document provides a short introduction to the Java version of StarLogo. It describes the basic features of StarLogo, and it suggests initial activities for using and learning StarLogo. At the end are pointers to other documents that provide a more complete description of the StarLogo language. You can add more specialized traits and properties.
Patches are pieces of the world in which the turtles live.
Patches are not merely passive objects upon which the turtles act. Like turtles, patches can execute StarLogo commands, and they can act on turtles and patches. Patches are arranged in a grid, with each patch corresponding to a square in the Graphics area. The observer looks down on the turtles and patches from a bird s eye perspective. The observer can create new turtles, and it can monitor the activity of the existing turtles and patches.