/* ------------------	*/
/* index-controls.js   		    */
/* ------------------	*/

// ----------------			// drag listeners
var dragstarted = function dragstarted(d) {
  if (!d3.event.active) simulation.alphaTarget(0.3).restart()
}

function dragged(d) {
}

function dragended(d) {
  if (!d3.event.active) simulation.alphaTarget(0);
}

// ----------------			// mouse listeners
function pauseEvent(e){
			if(e.stopPropagation) e.stopPropagation();
			if(e.preventDefault) e.preventDefault();
			e.cancelBubble=true;
			e.returnValue=false;
			return false;
	}	
	
function mousemove(svgElement) {
		moving = 1
		mousePosition = d3.mouse(svgElement)		// updateMousePos
		var e = d3.event
		pauseEvent(e)				
}		
 	
function mouseleave() {
		moving = 0 
		// stopParticles();		
}					

function mousedown() {
		// mousedown = 1
		// updateMousePos();
		// startParticles();
}	

function mousedown() {
		// touchstart = 1
		// updateMousePos();
		// startParticles();
}	

function touchmove(svgElement) {
		moving = 1
		mousePosition = d3.mouse(svgElement)		// updateMousePos
		var e = d3.event
		pauseEvent(e)				
}		
function mouseup() {
		// mouseup = 1
		// stopParticles();
}	
function touchend() {
		// touchend = 1
		// stopParticles();
}