FogOfWarShape CreateShape(FogOfWar fow)
{
if (shapeType == FogOfWarShapeType.Circle)
{
FogOfWarShapeCircle shape = new FogOfWarShapeCircle();
FillShape(fow, shape);
shape.innerRadius = innerRadius;
shape.angle = angle;
return(shape);
}
else if (shapeType == FogOfWarShapeType.Box)
{
FogOfWarShapeBox shape = new FogOfWarShapeBox();
FillShape(fow, shape);
return(shape);
}
else if (shapeType == FogOfWarShapeType.Texture)
{
if (texture == null)
{
return(null);
}
FogOfWarShapeTexture shape = new FogOfWarShapeTexture();
FillShape(fow, shape);
shape.texture = texture;
shape.rotateToForward = rotateToForward;
return(shape);
}
return(null);
}
void DrawRotatedTexture(FogOfWarShapeTexture 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
Vector2i offset = new Vector2i(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(FogOfWarShapeTexture 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
Vector2i offset = new Vector2i(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(FogOfWarShapeTexture shape);
