The 'SENSOR' will follow the mouse pointer. The other 'cat' is the 'FOREIGNER' or 'TARGET'. The FOREIGNERs X and Y is in the Foreign X and Foreign Y. The XDif and YDif find out the difference between each individuals X and Y. The RANGE is the variable you should be interested in the most. Its the actual EXACT distance for each cat
Foreign Cat is green Also, remember...RANGE is sensed from your center, so its not how far from the edge of sprite, but how far from the 'sprite as a whole'