I made the following script for 4 rotating disks;
Code:

---

DEFINE disk_ID			skill1;

var disk_pos[4];		// pos disk --> 1 - 12
var end_pos[4];		// in degrees
var disk_is_moving[4];
var solved_puzzle03;

function turn_disk_event()
{
	if(event_type==event_sonar)
	{
		if(key_pressed(280)==on && (cursor_action_pan.pos_x>-200) && solved_puzzle03==0)
		{
			my.enable_sonar=off;
			while(mouse_left==1) {wait(1);}			// wait for release mouse_left button
			disk_is_moving[my.disk_ID]=1;				// disk is moving
			cursor_action_pan.visible=off;			// hide cursor panel
			end_pos[my.disk_ID]=int(my.pan)+30;		// set end pos for ring (degrees)
			end_pos[my.disk_ID]%=360;					// max. 360 degrees
			//
			debug_val[4]=end_pos[my.disk_ID];
			//
			while(my.pan<end_pos[my.disk_ID])
			{
				my.pan+=.5*time_step;
				wait(1);
			}
			my.pan%=360;
			my.pan=int(end_pos[my.disk_ID]);
			cursor_action_pan.visible=on;
			//
			debug_val[5]=my.pan;
			//
			disk_pos[my.disk_ID]+=1;					// set disk pos (1 to 12)
			disk_pos[my.disk_ID]%=12;					// max. 12
			//	
			debug_val[0]=disk_pos[my.disk_ID];
			//
//			check_puzzle_03_event();
			if(solved_puzzle03==0)						// wrong answer
			{
				disk_is_moving[my.disk_ID]=0;			// reset disk
			}
		}
	}
	wait(1);
}

// uses: disk_ID
action disk_act
{
	my.enable_sonar=on;
	my.event=turn_disk_event;
	
	while(1)
	{
		if(disk_is_moving[my.disk_ID])
		{
			my.enable_sonar=off;
		}
		else
		{
			my.enable_sonar=on;
		}
		wait(1);
	}
}

---

Now I have some trouble with disk_pos[my.disk_ID]+=1;.
This value is not updated with 1 every time I click the mouse. It depents on the time I hold the left button down.
I thought I could prevent that with while(mouse_left==1) {wait(1);} but that does not help.
Same thing happens with end_pos[my.disk_ID]=int(my.pan)+30;. Here get the pan.value also a random value depending on how long I keep the mouse button down.
I think that I am doing something wrong in this script, but I don't know what, has anybody an idea???