void LineDraw(DrawState drawstate)
{
if (drawstate == null) throw new ArgumentNullException("drawstate");
if (drawstate.Mode != DrawMode.Lines) throw new ArgumentException("Incorrect drawstate");
m_effect.CurrentTechnique = (UseOldShader == true) ? m_effect.Techniques["DrawOLD"] : m_effect.Techniques["Draw"];
SetShaderParameters(drawstate.ShaderParameters, drawstate.Pixels, drawstate.Palette);
Int32 count = 0;
Boolean point = false;
foreach (DrawData data in drawstate)
{
if (point == false)
{
point = true;
m_drawbuffer[count * 2 + 0] = new Vertex(data.Location + CameraShift, Vector2.Zero, data.Tint);
}
else
{
point = false;
m_drawbuffer[count * 2 + 1] = new Vertex(data.Location + CameraShift, Vector2.Zero, data.Tint);
++count;
}
}
if (count > 0) FinishDrawing(PrimitiveType.LineList, count);
}
static void SetTextureCoords(Vertex[] buffer, Int32 offset, SpriteEffects flip)
{
SetTextureCoords(buffer, offset, new Point(1, 1), new Rectangle(0, 0, 1, 1), flip);
}
static void SetPosition(Vertex[] buffer, Int32 offset, FRect r, Single rotation, Vector2 axis)
{
Vector2 v1 = RotatePoint(new Vector2(r.Left, r.Top), rotation, axis);
Vector2 v2 = RotatePoint(new Vector2(r.Right, r.Bottom), rotation, axis);
buffer[offset + 0].Position = new Vector2(v1.X, v1.Y);
buffer[offset + 1].Position = new Vector2(v2.X, v1.Y);
buffer[offset + 2].Position = new Vector2(v2.X, v2.Y);
buffer[offset + 3].Position = new Vector2(v1.X, v1.Y);
buffer[offset + 4].Position = new Vector2(v2.X, v2.Y);
buffer[offset + 5].Position = new Vector2(v1.X, v2.Y);
}
static void SetTextureCoords(Vertex[] buffer, Int32 offset, Point textsize, Rectangle textrect, SpriteEffects flip)
{
Single x1 = (Single)textrect.Left / (Single)textsize.X;
Single x2 = (Single)textrect.Right / (Single)textsize.X;
Single y1 = (Single)textrect.Top / (Single)textsize.Y;
Single y2 = (Single)textrect.Bottom / (Single)textsize.Y;
if ((flip & SpriteEffects.FlipHorizontally) == SpriteEffects.FlipHorizontally)
{
Single temp = x1;
x1 = x2;
x2 = temp;
}
if ((flip & SpriteEffects.FlipVertically) == SpriteEffects.FlipVertically)
{
Single temp = y1;
y1 = y2;
y2 = temp;
}
buffer[offset + 0].TextureCoordinate = new Vector2(x1, y1);
buffer[offset + 1].TextureCoordinate = new Vector2(x2, y1);
buffer[offset + 2].TextureCoordinate = new Vector2(x2, y2);
buffer[offset + 3].TextureCoordinate = new Vector2(x1, y1);
buffer[offset + 4].TextureCoordinate = new Vector2(x2, y2);
buffer[offset + 5].TextureCoordinate = new Vector2(x1, y2);
}
static void SetColor(Vertex[] buffer, Int32 offset, Color c)
{
buffer[offset + 0].Tint = c;
buffer[offset + 1].Tint = c;
buffer[offset + 2].Tint = c;
buffer[offset + 3].Tint = c;
buffer[offset + 4].Tint = c;
buffer[offset + 5].Tint = c;
}
