I've been tasked with writing a scheduler for football pitches. Each pitch can also be divided into two half pitches. Obviously if a half pitch is booked then the full pitch cannot be booked at the same time and I need to add a 15 minute interval between every booking. So if a half pitch is booked for 2pm the full pitch cannot be booked until 3.15pm (1 hour + 15 minutes). However, someone could book the other half for 2.15pm which means the full pitch would not be available until 3.30pm (2.15 + 1 hour + 15 minutes). I have tried to do this using resources but I cannot work out how to create a resource (pitch) which could be 1st half or 2nd half or full depending on the other bookings (appointments) around it.
Any help / ideas / pointers would be very much appreciated.