//TGear JSFL by iceeLyne Nov. 12, 2003.

var theTool;//Flash Tool Object
var thePath;//Store Gear Path
var nSides = 6;
var nHSides = 6;
var rio = 0.75;
var rho = 0.25;
var didDrag = false;

function configureTool(){
	theTool = fl.tools.activeTool;
	theTool.setToolName("Gear Tool");
	theTool.setIcon("Gear.png");
	theTool.setMenuString("Gear Tool");
	theTool.setToolTip("Gear Tool");
	theTool.setOptionsFile("Gear.xml");
	theTool.setPI("shape");
}

function notifySettingsChanged(){
	theTool = fl.tools.activeTool;
	nSides = theTool.nsides;
	nHSides = theTool.nhsides;
	rio = theTool.rio;
	rho = theTool.rho;
}

function setCursor(){
	fl.tools.setCursor(0);
}

function activate(){
	theTool = fl.tools.activeTool;
	nSides = theTool.nsides;
	nHSides = theTool.nhsides;
	rio = theTool.rio;
	rho = theTool.rho;
}

function deactivate(){
}

function mouseDown(){
	fl.drawingLayer.beginDraw();
	didDrag = false;
}

function mouseMove(mouseLoc){
	if(fl.tools.mouseIsDown){
		var pt1 = fl.tools.penDownLoc;
		var pt2 = fl.tools.snapPoint(mouseLoc);
		var dx = Math.abs(pt1.x-pt2.x);
		var dy = Math.abs(pt1.y-pt2.y);
		var rad = Math.sqrt(dx*dx+dy*dy);
		var angle = Math.PI/2;
		if(fl.tools.shiftIsDown){
			if(dx>dy){
				if(pt2.x<pt1.x){
					angle += Math.PI/2;
				}else{
					angle -= Math.PI/2;
				}
			}else if(pt2.y<pt1.y){
				angle = -angle;
			}
			pt2.x = pt1.x+rad*Math.cos(angle);
			pt2.y = pt1.y+rad*Math.sin(angle);
		}
		if(rad>2){
			didDrag = true;
			thePath = buildGearPath(pt1,pt2);
			fl.drawingLayer.beginFrame();
			fl.drawingLayer.drawPath(thePath);
			fl.drawingLayer.endFrame();
		}
	}
}

function mouseUp(){
	fl.drawingLayer.endDraw();
	if(didDrag){
		thePath.makeShape();
	}
}

function buildGearPath(pt1,pt2){
	var centx = pt1.x,centy = pt1.y;
	var outerRadius = fl.Math.pointDistance(pt1,pt2);
	var innerRadius = outerRadius*rio;
	var holeRadius = outerRadius*rho;
	var step = 2*Math.PI/nSides;
	var qtrStep = step/4;
	var hStep = 2*Math.PI/nHSides;
	var x = pt2.x-pt1.x;
	var y = pt2.y-pt1.y;
	var start = x>=0 ? Math.atan(y/x) : Math.atan(y/x)+Math.PI;
	var path = fl.drawingLayer.newPath();
	for(var i=0;i<nSides;i++){
		path.addPoint(centx+Math.cos(start+step*i)*outerRadius,centy+Math.sin(start+step*i)*outerRadius);
		path.addPoint(centx+Math.cos(start+step*i+qtrStep)*outerRadius,centy+Math.sin(start+step*i+qtrStep)*outerRadius);
		path.addPoint(centx+Math.cos(start+step*i+qtrStep*2)*innerRadius,centy+Math.sin(start+step*i+qtrStep*2)*innerRadius);
		path.addPoint(centx+Math.cos(start+step*i+qtrStep*3)*innerRadius,centy+Math.sin(start+step*i+qtrStep*3)*innerRadius);
	}
	path.close();
	path.newContour();
	for(var i=0;i<nHSides;i++){
		path.addPoint(centx+Math.cos(start+hStep*i)*holeRadius,centy+Math.sin(start+hStep*i)*holeRadius);
	}
	path.close();
	return path;
}