public CircleSquareHitbox(Character user, Alignment targetAlignments, bool hitTiles, TileAlignment burstTiles, Loc origin, FiniteEmitter tileEmitter,
CircleSquareEmitter emitter, int maxRadius, int speed, int delay, AreaLimit hitArea, Dir8 dir)
: base(user, origin * GraphicsManager.TileSize, tileEmitter, delay)
{
TargetAlignments = targetAlignments;
HitTiles = hitTiles;
BurstTiles = burstTiles;
Origin = origin;
MaxRadius = maxRadius;
Speed = (speed > 0) ? speed : Math.Max(1, (int)Math.Ceiling(MaxRadius * 1.4142136 * GraphicsManager.MAX_FPS));
HitArea = hitArea;
Dir = dir;
Emitter = (CircleSquareEmitter)emitter.Clone();
Emitter.SetupEmit(MapLoc, user.CharDir, HitArea, MaxRadius * GraphicsManager.TileSize + GraphicsManager.TileSize / 2, Speed * GraphicsManager.TileSize);
}
public static bool IsInCircleSquareHitbox(Loc loc, Loc origin, int radius, int squareRadius, AreaLimit limit, Dir8 dir)
{
//check if inside circle and square
if ((origin - loc).DistSquared() > radius * radius)
{
return(false);
}
return(IsInSquareHitbox(loc, origin, squareRadius, limit, dir));
}
public static bool IsInSquareHitbox(Loc loc, Loc origin, int squareRadius, AreaLimit limit, Dir8 dir)
{
if (loc.X < origin.X - squareRadius || loc.X > origin.X + squareRadius)
{
return(false);
}
if (loc.Y < origin.Y - squareRadius || loc.Y > origin.Y + squareRadius)
{
return(false);
}
if (limit == AreaLimit.Cone)
{
//check if it's inside the cone
//get line diff
Loc diff = loc - origin;
//get cone vectors
Dir8 cone1 = DirExt.AddAngles(dir, Dir8.DownRight);
Dir8 cone2 = DirExt.AddAngles(dir, Dir8.DownLeft);
//get vector orthogonal1 to first cone line (aka, -second cone line)
Loc ortho1 = cone2.GetLoc() * -1;
//get vector orthogonal2 to second cone line ( aka, first cone line)
Loc ortho2 = cone1.GetLoc();
//get dot product of diff to orthogonal1; must be less than or equal to 0
int dot1 = Loc.Dot(diff, ortho1);
//get dot product of diff to orthogonal2; must be greater than or equal to 0
int dot2 = Loc.Dot(diff, ortho2);
if (dot1 > 0 || dot2 < 0)
{
return(false);
}
}
else if (limit == AreaLimit.Sides)
{
Loc diff = loc - origin;
if (dir.IsDiagonal())
{
//get cone vectors
Dir8 cone1 = DirExt.AddAngles(dir.Reverse(), Dir8.DownRight);
Dir8 cone2 = DirExt.AddAngles(dir.Reverse(), Dir8.DownLeft);
//get vector orthogonal1 to first cone line (aka, -second cone line)
Loc ortho1 = cone2.GetLoc() * -1;
//get vector orthogonal2 to second cone line ( aka, first cone line)
Loc ortho2 = cone1.GetLoc();
//get dot product of diff to orthogonal1; must be less than or equal to 0
int dot1 = Loc.Dot(diff, ortho1);
//get dot product of diff to orthogonal2; must be greater than or equal to 0
int dot2 = Loc.Dot(diff, ortho2);
if (dot1 > 0 || dot2 < 0)
{
return(false);
}
//additionally, both dot products cannot be a nonzero
if (dot1 != 0 && dot2 != 0)
{
return(false);
}
}
else
{
//check if it's inside the sides
int dot = Loc.Dot(diff, dir.GetLoc());
//check if the other point is EXACTLY perpendicular
if (dot != 0)
{
return(false);
}
}
}
return(true);
}
