/// <summary>Gets a Field-of-View for this board synchronously.</summary>
public static IFov GetFieldOfView(this IFovBoard <IHex> @this, HexCoords origin, FovTargetMode targetMode, int heightOfMan, int hexesPerMile)
{
Traces.FieldOfView.Trace("GetFieldOfView");
var fov = new ArrayFieldOfView(@this);
if (@this.IsPassable(origin))
{
ShadowCasting.ComputeFieldOfView(origin, @this, targetMode, coords => fov[coords] = true, heightOfMan, hexesPerMile);
}
return(fov);
}
/// <summary>TODO</summary>
public static IFov GetFieldOfView(this IFovBoard <IHex> @this, HexCoords origin, FovTargetMode targetMode)
{
TraceFlags.FieldOfView.Trace("GetFieldOfView");
var fov = new ArrayFieldOfView(@this);
if (@this.IsPassable(origin))
{
Func <HexCoords, int> target;
int observer;
switch (targetMode)
{
case FovTargetMode.EqualHeights:
observer = @this[origin].ElevationASL + 1;
target = coords => @this[coords].ElevationASL + 1;
break;
case FovTargetMode.TargetHeightEqualZero:
observer = @this[origin].HeightObserver;
target = coords => @this[coords].ElevationASL;
break;
default:
case FovTargetMode.TargetHeightEqualActual:
observer = @this[origin].HeightObserver;
target = coords => @this[coords].HeightTarget;
break;
}
ShadowCasting.ShadowCasting.ComputeFieldOfView(
origin,
@this.FovRadius,
observer,
coords => @this.IsOnboard(coords),
target,
coords => @this[coords].HeightTerrain,
coords => fov[coords] = true
);
}
return(fov);
}
