Formation to describe how the squad should arrange themselves.

Formation.swift

import SpriteKit

class Formation {
    
    // The vectors for a 3x3 formation.
    var positions : Array<CGVector> = [
        CGVectorMake(0, 0),
        CGVectorMake(-64, 0),
        CGVectorMake(64, 0),
        CGVectorMake(-64, 64),
        CGVectorMake(0, 64),
        CGVectorMake(64, 64),
        CGVectorMake(-64, -64),
        CGVectorMake(0, -64),
        CGVectorMake(64, -64)
    ]
    
    init() {
        
    }
    
    func getVectorAtPosition(position:Int) -> CGVector {
        return self.positions[position]
    }
    
}