// FUNCTIONS
///////////////////////////////////////////////////////////////////////////
public DrawInfo(FogMap map, FogShape shape, float xradius, float yradius)
{
// convert size to fog space
fogForward = shape.Forward;
forwardAngle = FogTools.ClockwiseAngle(Vector2.up, fogForward) * Mathf.Deg2Rad;
float sin = Mathf.Sin(-forwardAngle);
float cos = Mathf.Cos(-forwardAngle);
Vector2 relativeoffset = new Vector2(shape.Offset.x * cos - shape.Offset.y * sin, shape.Offset.x * sin + shape.Offset.y * cos);
fogCenterPos = FogConversion.WorldToFog(FogConversion.WorldToFogPlane(shape.EyePosition, map.Plane) + relativeoffset, map.Offset, map.Resolution, map.Size);
fogEyePos = new Vector2_1(FogConversion.WorldToFog(shape.EyePosition, map.Plane, map.Offset, map.Resolution, map.Size));
// find ranges
if (shape.VisibleCells == null)
{
xMin = Mathf.Max(0, Mathf.RoundToInt(fogCenterPos.x - xradius));
xMax = Mathf.Min(map.Resolution.x - 1, Mathf.RoundToInt(fogCenterPos.x + xradius));
yMin = Mathf.Max(0, Mathf.RoundToInt(fogCenterPos.y - yradius));
yMax = Mathf.Min(map.Resolution.y - 1, Mathf.RoundToInt(fogCenterPos.y + yradius));
}
else
{
fogCenterPos = FogConversion.SnapToNearestFogPixel(fogCenterPos);
fogEyePos = new Vector2_1(FogConversion.SnapToNearestFogPixel(FogConversion.WorldToFog(shape.EyePosition, map.Offset, map.Resolution, map.Size)));
Vector2_1 pos = new Vector2_1(Mathf.RoundToInt(fogCenterPos.x), Mathf.RoundToInt(fogCenterPos.y));
Vector2_1 rad = new Vector2_1(Mathf.RoundToInt(xradius), Mathf.RoundToInt(yradius));
xMin = Mathf.Max(0, Mathf.RoundToInt(pos.x - rad.x));
xMax = Mathf.Min(map.Resolution.x - 1, Mathf.RoundToInt(pos.x + rad.x));
yMin = Mathf.Max(0, Mathf.RoundToInt(pos.y - rad.y));
yMax = Mathf.Min(map.Resolution.y - 1, Mathf.RoundToInt(pos.y + rad.y));
}
}
////////////////////////////////////////////////////////////////////////////////
public void Unfog(Bounds bounds)
{
Rect rect = new Rect();
rect.min = FogConversion.WorldToFog(bounds.min, Plane, MapOffset, MapResolution, MapSize);
rect.max = FogConversion.WorldToFog(bounds.max, Plane, MapOffset, MapResolution, MapSize);
Unfog(rect);
}
////////////////////////////////////////////////////////////////////////////////
/// <summary>
/// Draw map area bounds.
/// </summary>
void OnDrawGizmos()
{
Gizmos.color = Color.red;
Vector3 offset = FogConversion.FogPlaneToWorld(MapOffset.x, MapOffset.y, 0, Plane);
Vector3 size = FogConversion.FogPlaneToWorld(MapSize, MapSize, 0, Plane);
Gizmos.DrawWireCube(offset, size);
Gizmos.color = new Color(1, 0, 0, 0.2f);
Gizmos.DrawCube(offset, size);
}
////////////////////////////////////////////////////////////////////////////////
public Vector2_1 WorldPositionToFogPosition(Vector3 position)
{
Vector2 mappos = FogConversion.WorldToFogPlane(position, Plane) - MapOffset;
mappos.Scale(MapResolution.vector2 / MapSize);
Vector2_1 mapposi = new Vector2_1(mappos);
mapposi += new Vector2_1(MapResolution.x >> 1, MapResolution.y >> 1);
return(mapposi);
}
///////////////////////////////////////////////////////////////////////////
void FillShape(FogManager fow, FogShape shape)
{
if (AntiFlicker)
{
// snap to nearest fog pixel
shape.EyePosition = FogConversion.SnapWorldPositionToNearestFogPixel(fow, FogConversion.WorldToFogPlane(_Transform.position, fow.Plane), fow.MapOffset, fow.MapResolution, fow.MapSize);
shape.EyePosition = FogConversion.FogPlaneToWorld(shape.EyePosition.x, shape.EyePosition.y, _Transform.position.y, fow.Plane);
}
else
{
shape.EyePosition = _Transform.position;
}
shape.Forward = FogConversion.TransformFogPlaneForward(_Transform, fow.Plane);
shape.Offset = Offset;
shape.Radius = Radius;
}
////////////////////////////////////////////////////////////////////////////////
// Checks the visibility of an area, where a value of 0 is fully unfogged and 1 if fully fogged
public float VisibilityOfArea(Bounds worldbounds)
{
Vector2 min = FogConversion.WorldToFog(worldbounds.min, Plane, MapOffset, MapResolution, MapSize);
Vector2 max = FogConversion.WorldToFog(worldbounds.max, Plane, MapOffset, MapResolution, MapSize);
int xmin = Mathf.Clamp(Mathf.RoundToInt(min.x), 0, MapResolution.x);
int xmax = Mathf.Clamp(Mathf.RoundToInt(max.x), 0, MapResolution.x);
int ymin = Mathf.Clamp(Mathf.RoundToInt(min.y), 0, MapResolution.y);
int ymax = Mathf.Clamp(Mathf.RoundToInt(max.y), 0, MapResolution.y);
float total = 0;
int count = 0;
for (int y = ymin; y < ymax; ++y)
{
for (int x = xmin; x < xmax; ++x)
{
++count;
total += _FogValuesCopy[y * MapResolution.x + x] / 255.0f;
}
}
return(total / count);
}