public void keyPressed(KeyEvent event) {
		switch (event.getKeyCode()) {
			case KeyEvent.VK_SHIFT:
				b1 = true;
				break;
			case KeyEvent.VK_CONTROL:
				b2 = true;
				break;
			case KeyEvent.VK_LEFT:
				bl = true;
				break;
			case KeyEvent.VK_UP:
				bu = true;
				break;
			case KeyEvent.VK_DOWN:
				bd = true;
				break;
			case KeyEvent.VK_RIGHT:
				br = true;
				break;
			default:
				return;
		}
		clkcanvas.repaint();
		
		onInput();
	}