if (Input.GetMouseButtonDown(0) && selectedTile == null){
            Ray ray = playerCam.ScreenPointToRay(Input.mousePosition);
            RaycastHit hit;
            //if (selectedTile != null) selectedTile.GetComponentInChildren<ChangeColor>().DisableSelectedTile();
            if (Physics.Raycast(ray, out hit)){ //sets selection, waits for confirmation to claim
                if (hit.transform.tag.Equals ("Tile")) {
                    selectedTile = hit.transform.gameObject.GetComponent<Tile> ();
                        if (isTrading == true && offerSelected == false){
                            if(selectedTile.owner == curPlayer){
                                offer.Add(selectedTile);
                                offerSelected = true;
                            }
                            else{
                                selectedTile = null;
                            }
                        }
                        else if (isTrading == true && offerSelected == true) {
                            if(selectedTile.owner == curPlayer){
                                selectedTile = null;
                            }
                            else{
                                want.Add(selectedTile);
                                wantSelected = true;

                            }
                        }
                        else if (isTrading == false && offerSelected == false && wantSelected == false){
                            if (selectedTile.owner != 0)
                            selectedTile = null;
                            UI.ChangeUserConfirmation ();
                            selectedTile.GetComponentInChildren<ChangeColor> ().HighlightSelectedTile ();
                            timer = 0;
                        }
                }

            }
        }