public void SetNotSelfish()
 {
     selfishType = SelfishType.NOT_SELFISH;
     FillColour  = NODE_COLOUR_NOT_SELFISH;
 }
 public void SetPureSelfish()
 {
     selfishType = SelfishType.PURE_SELFISH;
     FillColour  = NODE_COLOUR_PURE_SELFISH;
 }
 public void SetPartialSelfish()
 {
     selfishType = SelfishType.PARTIAL_SELFISH;
     FillColour  = NODE_COLOUR_PARTIAL_SELFISH;
 }