public void removePlayersBuildingsUnits(Player player) {
		for (Cell[] cell1 : cells) {
			for (Cell cell : cell1) {
				// remove buildings
				if (cell.getBuilding() != null) {
					if (Teams.comparePlayers(cell.getBuilding().getOwner(),
							player)) {
						cell.building = null;
					}
				}
				// remove units
				if (cell.getUnit() != null) {
					if (Teams.comparePlayers(cell.getUnit().getOwner(), player)) {
						cell.unit = null;
					}
				}

			}
		}
	}