public DistanceEffect(TibiaGameData GameData, int ID, MapPosition From, MapPosition To)
{
this.ID = ID;
Sprite = GameData.GetDistanceEffectSprite(ID);
int dx = To.X - From.X;
int dy = To.Y - From.Y;
/*
* 0 = NW
* 1 = N
* 2 = NE
* 3 = W
* 4 = C
* 5 = E
* 6 = SW
* 7 = S
* 8 = SE
* */
double tan = 10;
if (dx != 0)
{
tan = (float)dy / (float)dx;
}
if (Math.Abs(tan) < 0.4142f)
{
if (dx > 0)
{
Frame = 5; // EAST
}
else
{
Frame = 3;// WEST
}
}
else if (Math.Abs(tan) < 2.4142f)
{
if (tan > 0)
{
if (dy > 0)
{
Frame = 8;// SOUTH EAST
}
else
{
Frame = 0;// NORTH WEST;
}
}
else
{ //tan < 0
if (dx > 0)
{
Frame = 2;// NORTH EAST;
}
else
{
Frame = 6;// SOUTH WEST
}
}
}
else
{
if (dy > 0)
{
Frame = 7;// SOUTH
}
else
{
Frame = 1;// NORTH
}
}
Duration = Math.Sqrt(dx * dx + dy * dy) / 10;
Offset = new Vector2(
(From.X - Math.Max(From.X, To.X)) * 32,
(From.Y - Math.Max(From.Y, To.Y)) * 32
);
Speed = new Vector2(Math.Sign(dx) * 160, Math.Sign(dy) * 160);
//Speed -= Offset;
}
