clock_style

/*

simple 2d clock-style beat display
the beat is assigned to the bottom of the circle, the clock hand swings past
this point on the ictus of each beat. A visual indication of beat membership
is triggered within a threshold of +/- 0.1 of beat phase.  The display is driven
via a float phase input.  Whole numbers correspond to beats and intermediate 
float values indicate some fraction of the beat around the circle.

One notes the low-priority queue limitations here--particularly for faster beat
values, the "blink" on the beat becomes intermittent due to the low frame refresh
rate of the GUI object.

Jeremy Wagner, July 26, 2022
*/

sketch.default2d();
var val = 0;
var theta=0;
var r = 0.8;
var blink =  false;

draw();

function draw()
{
	var width = box.rect[2] - box.rect[0];
	
	with (sketch) {
		shapeslice(180,1);
		// erase background
		glclearcolor(0,0,0,1);
		glclear();
		moveto(0,0);
		gllinewidth(1);
		glcolor(1,1,1,1);
		circle(0.8);
		glcolor(0,0,0,1);
		circle(0.78);
		glcolor(1,1,1,1);
		lineto(0.8*Math.cos(theta),0.8*Math.sin(theta));
		moveto(0,0);
		lineto(0,-0.8);
		if(blink){
			blink=false;
			circle(0.2);
			glcolor(0,0,0,1);
			circle(.15);
		}
		glcolor(1,1,1,1);
		circle(0.05);
		
		
	}
}

function bang()
{
	draw();
	refresh();
	outlet(0,val);
}

function msg_float(v)
{
	theta = -(v+.25 % 1.0) * 6.2831853072;
	if(Math.abs(v % 1.0)<0.1){
		blink = true;
	}
	notifyclients();
	bang();
}

function forcesize(w,h)
{
	if (w!=h) {
		h = w;
		box.size(w,h);
	}
}
forcesize.local = 1; //private

function onresize(w,h)
{
	forcesize(w,h);
	r = 0.4*Math.min(box.rect[2] - box.rect[0], box.rect[3] - box.rect[1]);
	draw();
	refresh();
}
onresize.local = 1; //private