NoDown Version:
    		if (mc.thePlayer.onGround)mc.thePlayer.fallDistance = 0.1f;
			if (mc.thePlayer.fallDistance > 0) {
				mc.thePlayer.motionY = mc.gameSettings.keyBindJump.pressed ? 0.06 : 0.0405;
				mc.thePlayer.fallDistance = 0;
			}
Other:
    		if (mc.thePlayer.onGround)mc.thePlayer.fallDistance = 0.1f;
			if (mc.thePlayer.fallDistance > 0) {
				mc.thePlayer.motionY = 0.1;
				mc.thePlayer.fallDistance = 0.0f;
			}