///////////////////////////////////////////////////////////////////////////
/// <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);
}
///////////////////////////////////////////////////////////////////////////
void DrawRotatedTexture(FogShapeTexture shape)
{
if (shape.Texture == null)
{
return;
}
// convert size to fog space
float size = new Vector2(shape.Radius, shape.Radius).magnitude *_Map.PixelSize;
Vector2 sizemul = new Vector2(size / (shape.Radius * _Map.PixelSize), size / (shape.Radius * _Map.PixelSize));
float fogradius = size;
DrawInfo info = new DrawInfo(_Map, shape, size, size);
// rotation stuff
float sin = Mathf.Sin(info.forwardAngle);
float cos = Mathf.Cos(info.forwardAngle);
for (int y = info.yMin; y < info.yMax; ++y)
{
for (int x = info.xMin; x < info.xMax; ++x)
{
// get rotated uvs
float u = Mathf.InverseLerp(info.xMin, info.xMax, x) - 0.5f;
float v = Mathf.InverseLerp(info.yMin, info.yMax, y) - 0.5f;
float uu = (u * cos - v * sin) * sizemul.x + 0.5f;
float vv = (v * cos + u * sin) * sizemul.y + 0.5f;
if (uu < 0 || uu >= 1 || vv < 0 || vv >= 1)
{
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;
}
// read texture
Unfog(x, y, SampleTexture(shape.Texture, uu, vv));
}
}
}
///////////////////////////////////////////////////////////////////////////
protected override void DrawTexture(FogShapeTexture shape)
{
if (shape.Texture == null)
{
return;
}
if (shape.RotateToForward)
{
DrawRotatedTexture(shape);
return;
}
// convert size to fog space
float fogradius = shape.Radius * _Map.PixelSize;
DrawInfo info = new DrawInfo(_Map, shape, shape.Radius * _Map.PixelSize, shape.Radius * _Map.PixelSize);
for (int y = info.yMin; y <= info.yMax; ++y)
{
for (int x = info.xMin; x <= info.xMax; ++x)
{
// 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;
}
// read texture
float u = Mathf.InverseLerp(info.xMin, info.xMax, x);
float v = Mathf.InverseLerp(info.yMin, info.yMax, y);
Unfog(x, y, SampleTexture(shape.Texture, u, v));
}
}
}
protected abstract void DrawTexture(FogShapeTexture texture);
