public override HashSet <AnimatedPoint> RenderFrame(int currentFrame)
{
var animatedPoints = new HashSet <AnimatedPoint>();
//accumulate all points in the current column represented by frame index
List <SkiaSharp.SKPoint> framePoints = new List <SkiaSharp.SKPoint>();
for (int i = 0; i < NumFrames; i++)
{
var p = new SkiaSharp.SKPointI(currentFrame, i);
if (SeperatedPoints.ContainsKey(p))
{
framePoints.AddRange(SeperatedPoints[p]);
}
}
foreach (var point in framePoints)
{
var distCanMove = shortestDistanceFromPoints(point);
var xComponent = Geometry.getXComponent(_direction, distCanMove);
var yComponent = Geometry.getYComponent(_direction, distCanMove);
var p = new AnimatedPoint(point, (float)xComponent, (float)yComponent);
animatedPoints.Add(p);
}
return(animatedPoints);
}
public override void SetupAnimation()
{
base.SetupAnimation();
//visible rec so that the start of the anim is from a point visible on screen
var visibleRecX = Random.Rand.Next(NumFrames);
var visibleRecY = Random.Rand.Next(NumFrames);
var recIndex = new SKPointI(visibleRecX, visibleRecY);
//keep geting a random index until one exists
while (!SeperatedPoints.ContainsKey(recIndex))
{
visibleRecX = Random.Rand.Next(NumFrames);
visibleRecY = Random.Rand.Next(NumFrames);
recIndex = new SKPointI(visibleRecX, visibleRecY);
}
//index of a randoom point on the random visible rec
var index = Random.Rand.Next(SeperatedPoints[recIndex].Count);
//pointF version of the point
var pointT = SeperatedPoints[recIndex].ToArray()[index];
//vertex version of the point
var point = new Vertex(pointT.X, pointT.Y);
//index of the chosen point in the overall points list
var indexT = InternalPoints.IndexOf(point);
//set the first point as used
_pointUsed[indexT] = true;
_animateList = new Queue <Vertex>();
_animateList.Enqueue(point);
IsSetup = true;
}
//saves
internal HashSet <SKPoint> getTouchAreaRecPoints()
{
var touch = new HashSet <SKPoint>();
var BL = new SKPoint(TouchLocation.X - TouchRadius, TouchLocation.Y - TouchRadius);
var TR = new SKPoint(TouchLocation.X + TouchRadius, TouchLocation.Y + TouchRadius);
var BLindex = new SKPointI();
var TRindex = new SKPointI();
GridRotation.CellCoordsFromOriginPoint(ref BLindex, BL);
GridRotation.CellCoordsFromOriginPoint(ref TRindex, TR);
var upperX = TRindex.X > BLindex.X ? TRindex.X : BLindex.X;
var lowerX = TRindex.X < BLindex.X ? TRindex.X : BLindex.X;
var upperY = TRindex.Y > BLindex.Y ? TRindex.Y : BLindex.Y;
var lowerY = TRindex.Y < BLindex.Y ? TRindex.Y : BLindex.Y;
var p = new SKPointI();
for (var i = lowerX; i <= upperX; i++)
{
for (var j = lowerY; j <= upperY; j++)
{
p.X = i;
p.Y = j;
if (SeperatedPoints.ContainsKey(p))
{
touch.UnionWith(SeperatedPoints[p]);
}
}
}
return(touch);
}
