Oscillators (wave functions)

function sin(l){
	val = Math.sin(l * Math.PI/180);
	return val;
}

function tri(l){
	p = 360; // period
	l = l + 90;
	val = (2 * Math.abs(2 * ((l/p) - Math.floor((l/p) + (1/2)))) - 1);
	return val;
}

function saw(l){
	p = 360;
	val = 2 * ((l/p) - Math.floor((1/2) + (l/p)));
	return val;
}

function squ(l){
	val = Math.sign(Math.sin(l * Math.PI/180));
	return val;
}

Smart object

function osc(type){
	this.type = type;
	if(type == "sin"){
		this.calc = sin;
	}else if(type == "tri"){
		this.calc = tri;
	}else if(type == "squ"){
		this.calc = squ;
	}else if(type == "saw"){
		this.calc = saw;
	}else if(type == "non"){
		this.calc = non;
	}
	this.updateOscType = updateOscType;
}

function updateOscType(type){
	if(type == "sin"){
		this.calc = sin;
	}else if(type == "tri"){
		this.calc = tri;
	}else if(type == "squ"){
		this.calc = squ;
	}else if(type == "saw"){
		this.calc = saw;
	}else if(type == "non"){
		this.calc = non;
	}
}

function non(l){
	return 1;
}

function sin(l){
	val = Math.sin(l * Math.PI/180);
	return val;
}

function tri(l){
	p = 360; // period
	l = l + 90;
	val = (2 * Math.abs(2 * ((l/p) - Math.floor((l/p) + (1/2)))) - 1);
	return val;
}

function saw(l){
	p = 360;
	val = 2 * ((l/p) - Math.floor((1/2) + (l/p)));
	return val;
}

function squ(l){
	val = Math.sign(Math.sin(l * Math.PI/180));// (2*Math.floor(p*l) - Math.floor(2*p*l))+1;
	return val;
}

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