1 |
schoenebeck |
2936 |
<html> |
2 |
|
|
<head> |
3 |
|
|
<meta name="author" content="Christian Schoenebeck"> |
4 |
|
|
<title>event_status() function</title> |
5 |
|
|
<meta name="description" content="Returns the current status of a note."> |
6 |
|
|
</head> |
7 |
|
|
<body> |
8 |
|
|
<h1>event_status()</h1> |
9 |
|
|
<p> |
10 |
|
|
Checks and returns the current status of the requested note. You can use |
11 |
|
|
this function to check if a note is still "alive". A note is considered |
12 |
|
|
"alive" as long as there are still active voices associated with it, which |
13 |
|
|
might for example still be the case even long time after the respective |
14 |
|
|
note's key had been released by the musician (i.e. because the voice uses |
15 |
|
|
a very long release envelope stage). |
16 |
|
|
</p> |
17 |
|
|
<p> |
18 |
|
|
If you are rather just interested whether a certain note key is currently |
19 |
|
|
pressed down, then you can read the built-in array variable |
20 |
|
|
<code lang="nksp">%KEY_DOWN[]</code> instead. |
21 |
|
|
</p> |
22 |
|
|
|
23 |
|
|
<h3>Function Prototype</h3> |
24 |
|
|
<p/> |
25 |
|
|
<code lang="nksp"> |
26 |
|
|
event_status(??note??) |
27 |
|
|
</code> |
28 |
|
|
|
29 |
|
|
<h3>Arguments</h3> |
30 |
|
|
<table> |
31 |
|
|
<tr> |
32 |
|
|
<th>Argument Name</th> <th>Data Type</th> <th>Description</th> |
33 |
|
|
</tr> |
34 |
|
|
<tr> |
35 |
|
|
<td><code>??note??</code></td> |
36 |
|
|
<td>Note ID Number</td> |
37 |
|
|
<td>Status of this note will be checked.<br> |
38 |
|
|
[required]</td> |
39 |
|
|
</tr> |
40 |
|
|
</table> |
41 |
|
|
|
42 |
|
|
<h3>Return Value</h3> |
43 |
|
|
<p> |
44 |
|
|
Returns either <code>$EVENT_STATUS_INACTIVE</code> if the requested note |
45 |
|
|
is already dead and gone, or <code>$EVENT_STATUS_NOTE_QUEUE</code> if |
46 |
|
|
the note is still alive. |
47 |
|
|
</p> |
48 |
|
|
<note> |
49 |
|
|
Even though there are currently just two possible return values, |
50 |
|
|
<code>$EVENT_STATUS_NOTE_QUEUE</code> is defined as bit flag though, and since |
51 |
|
|
other bit flags might be added in future you should only compare bitwise with |
52 |
|
|
<code>$EVENT_STATUS_NOTE_QUEUE</code>. See example below. |
53 |
|
|
</note> |
54 |
|
|
|
55 |
|
|
<h3>Examples</h3> |
56 |
|
|
<p> |
57 |
|
|
The following example shows a simple stuttering effect. The script |
58 |
|
|
runs in an endless loop and turns down and up the volume all 200ms. |
59 |
|
|
To stop the endless loop once the respective note died, the return |
60 |
|
|
value of <code>event_status()</code> is compared bitwise with built-in constant bit flag |
61 |
|
|
<code>$EVENT_STATUS_NOTE_QUEUE</code>. |
62 |
|
|
</p> |
63 |
|
|
<code> |
64 |
|
|
on note |
65 |
|
|
while (1) |
66 |
|
|
wait(200000) |
67 |
|
|
if (not (event_status($EVENT_ID) .and. $EVENT_STATUS_NOTE_QUEUE)) |
68 |
|
|
exit() |
69 |
|
|
end if |
70 |
|
|
change_vol($EVENT_ID, -20000) { Reduce volume by 20 dB. } |
71 |
|
|
|
72 |
|
|
wait(200000) |
73 |
|
|
if (not (event_status($EVENT_ID) .and. $EVENT_STATUS_NOTE_QUEUE)) |
74 |
|
|
exit() |
75 |
|
|
end if |
76 |
|
|
change_vol($EVENT_ID, 0) { Increase volume to 0 dB. } |
77 |
|
|
end while |
78 |
|
|
end on |
79 |
|
|
</code> |
80 |
|
|
|
81 |
|
|
<h3>Availabilty</h3> |
82 |
|
|
<p>Since LinuxSampler 2.0.0.svn12.<p> |
83 |
|
|
|
84 |
|
|
<note> |
85 |
|
|
LinuxSampler does currently not support KSP's <code>$EVENT_STATUS_MIDI_QUEUE</code> flag as return value. |
86 |
|
|
</note> |
87 |
|
|
|
88 |
|
|
</body> |
89 |
|
|
</html> |