jtdancemusician

I was successful in passing messages to a global variable as per the example in the JS Tutorial. But when I put in a second Global variable, my code broke (specifically, Max can't execute function msg_int() ). Commenting it out fixes the code.

Can only one Global variable be declared per script?

var d1 = 8000, d2 = 8000, d3 = 8000; //durations

var c1 = 1, c2 = 2, c3 = 3; //MIDI channels

var counter1 = 0, counter2 = 0, counter3 = 0; //counts through loop

var note1Area = false, note2Area = false, note3Area = false; //mouse coords that activate notes

//set pitches as variable values from outside of this script

function msg_int(val) //checks for input, calls other functions

    if (vals[0] > 100 && vals[0] < 300 && vals[1] > 150 && vals[1] < 350) {

            note1Area = false;

    if (vals[0] > 500 && vals[0] < 800 && vals[1] > 150 && vals[1] < 350) {

            note2Area = false;

    if (vals[0] > 1100 && vals[0] < 1400 && vals[1] > 150 && vals[1] < 350) {

            note3Area = false;

    if (counter1 == 0 && note1Area == true) {

            outlet(3, c1); //outputs MIDI channel on right outlet

            outlet(2, d1); //outputs duration on mid-right outlet

            outlet(1, glob.v1); //outputs vel on mid-left outlet

            outlet(0, glob.p1); //outputs pitch on left outlet - plays note

            } else if (counter1 != 0 && note1Area == false) {

            outlet(1, 0); //outputs 0 vel on middle outlet - turns note off

            outlet(0, glob.p1); //outputs pitch on right outlet

    if (counter2 == 0 && note2Area == true) {

            outlet(1, glob.v2);

            outlet(0, glob.p2);

            } else if (counter2 != 0 && note2Area == false) {

    if (counter3 == 0 && note3Area == true) {

            outlet(1, glob.v3);

            outlet(0, glob.p3);

            } else if (counter3 != 0 && note3Area == false) {

inlets = 2;
outlets = 4;
var vals = [0, 0];//input array
var d1 = 8000, d2 = 8000, d3 = 8000; //durations
var c1 = 1, c2 = 2, c3 = 3; //MIDI channels
var counter1 = 0, counter2 = 0, counter3 = 0; //counts through loop
var note1Area = false, note2Area = false, note3Area = false; //mouse coords that activate notes

//set pitches as variable values from outside of this script
//using Global (Max namespace) variables
glob = new Global("notes");
glob.p1 = 64;
glob.p2 = 80;
glob.p3 = 72;
glob.v1 = 100;
glob.v2 = 80;
glob.v3 = 127;

function msg_int(val) //checks for input, calls other functions
{
	if (inlet == 1) {
		vals[1] = val;
		} else {
			vals[0] = val;
			noteAreas();
			note1(val);
			note2(val);
			note3(val);
			}
}

function noteAreas()
{
	if (vals[0] > 100 && vals[0] < 300 && vals[1] > 150 && vals[1] < 350) {
		note1Area = true;
		} else {
			note1Area = false;
			}

	if (vals[0] > 500 && vals[0] < 800 && vals[1] > 150 && vals[1] < 350) {
		note2Area = true;
		} else {
			note2Area = false;
			}

	if (vals[0] > 1100 && vals[0] < 1400 && vals[1] > 150 && vals[1] < 350) {
		note3Area = true;
		} else {
			note3Area = false;
			}
}

more-than-one-global-variable

You can use more then one global variable and nothing is breaking here. Can you create a stripped down example to illustrate your problem?

More than one Global variable?