public void tick() {
		if (displayedMessage > -1) {
			if (!fading) {
				displayTicks++;
				if (displayTicks == TICKS_PER_MESSAGE) {
					displayTicks = 0;
					fading = true;
				}
			} else {
				fadingTicks++;
				if (fadingTicks == FADE_TICKS) {
					fadingTicks = 0;
					fading = false;
					displayedMessage--;
				}
			}
		}
	}