Some basic syntax
-message
- declares a method called `message'. E.g. ‘step’
-message:(type) v
- declares method called ‘message:’ that takes one argument
-setX:(type)x Y:(type)y
- declares method called ‘setX:Y:’ that takes two arguments
@interface Bug:SwarmObject {
int worldXSize,worldYSize;
-setX: (int) x Y: (int) y;