///////////////////////////////////////////////////////////////////////////
/// <summary>
/// Creates new vision shape.
/// </summary>
/// <param name="fow"></param>
/// <returns></returns>
FogShape CreateShape(FogManager fow)
{
if (ShapeType == FogShapeType.Circle)
{
FogCircle shape = new FogCircle();
FillShape(fow, shape);
shape.InnerRadius = InnerRadius;
shape.Angle = Angle;
return(shape);
}
else if (ShapeType == FogShapeType.Texture)
{
if (Texture == null)
{
return(null);
}
FogShapeTexture shape = new FogShapeTexture();
FillShape(fow, shape);
shape.Texture = Texture;
shape.RotateToForward = RotateToForward;
return(shape);
}
return(null);
}
///////////////////////////////////////////////////////////////////////////
protected override void DrawCircle(FogCircle shape)
{
int fogradius = Mathf.RoundToInt(shape.Radius * _Map.PixelSize);
int fogradiussqr = fogradius * fogradius;
DrawInfo info = new DrawInfo(_Map, shape, fogradius, fogradius);
// view angle stuff
float dotangle = 1 - shape.Angle / 90;
for (int y = info.yMin; y <= info.yMax; ++y)
{
for (int x = info.xMin; x <= info.xMax; ++x)
{
// is pixel within circle radius
Vector2 centeroffset = new Vector2(x, y) - info.fogCenterPos;
if (shape.VisibleCells == null && centeroffset.sqrMagnitude >= fogradiussqr)
{
continue;
}
// check if in view angle
if (dotangle > -0.99f && Vector2.Dot(centeroffset.normalized, info.fogForward) <= dotangle)
{
continue;
}
// can see pixel
Vector2_1 offset = new Vector2_1(x, y) - info.fogEyePos;
if (!LineOfSightCanSee(shape, offset.vector2, fogradius))
{
continue;
}
if (!LineOfSightCanSeeCell(shape, offset))
{
continue;
}
Unfog(x, y, shape.GetFallOff(centeroffset.magnitude / (_Map.PixelSize * shape.Radius)));
}
}
}
protected abstract void DrawCircle(FogCircle circle);
