Exey Panteleev

public var p3d:Plane3D; // just for hold plane orientation
public var spot:Shape = new Shape();

public var spotColor:Number
public var spotWidth:int
public var spotHeight:int
public var spotDepth:int

public var sx:int
public var sy:int
public var sz:int

public var movieFromMat:Sprite;

public static const MIN_DISTANCE:uint = 400;

public function ColorSpotCaster(plane3d:Plane3D, movieFromMaterial:Sprite, color:Number, width:int, height:int) 
{
	this.p3d = plane3d
	this.movieFromMat = movieFromMaterial
	this.spotColor = color
	this.spotWidth = width
	this.spotHeight = height 
	this.spotDepth = width
	drawSpot();
}


public function drawSpot():void
{
	 spot.name = "spot";
	 var gType:String = GradientType.RADIAL;  

	 var matrix:Matrix = new Matrix();   
	 matrix.createGradientBox(spotWidth,spotHeight,0,-spotWidth*0.5, -spotHeight*0.5);  

	 var gColors:Array = [spotColor, 0x000000];  
	 var gAlphas:Array = [1,0];  
	 var gRatio:Array = [0,255];  

	 var g:Graphics = spot.graphics
	 g.beginGradientFill(gType,gColors,gAlphas,gRatio,matrix);  
	 g.drawRect(-spotWidth*0.5, -spotHeight*0.5, spotWidth, spotHeight); 
	 movieFromMat.addChild(spot)
}

public function updateSpotPositions(relativeColorThingPosition:Number3D, planeSize:uint, distance:uint):void 
{
	if (p3d.normal.y == 1) {
		spot.x = relativeColorThingPosition.x
		spot.y = planeSize-relativeColorThingPosition.z
	}else if (p3d.normal.z == 1) {
		spot.x = relativeColorThingPosition.x
		spot.y = planeSize-relativeColorThingPosition.y
	}else if (p3d.normal.x == 1) {
		spot.x = relativeColorThingPosition.z
		spot.y = planeSize-relativeColorThingPosition.y
	}
	
	spot.alpha = (MIN_DISTANCE - distance) / MIN_DISTANCE
	
	if(distance > MIN_DISTANCE*0.5)
		spot.scaleX = spot.scaleY =2+distance/100
	else
		spot.scaleX = spot.scaleY =2+(MIN_DISTANCE-distance)/100
}