/// <summary>
/// Render a (textured) quad to the screen.
/// </summary>
/// <param name="position">The position of the quad.</param>
/// <param name="size">The size of the quad.</param>
/// <param name="color">The color of the quad.</param>
/// <param name="texture">The texture of the quad, if any.</param>
/// <param name="textureArea">The texture area of the quad's texture, if any.</param>
/// <param name="flipX">Whether to flip the texture on the x axis.</param>
/// <param name="flipY">Whether to flip the texture on the y axis.</param>
public void RenderSprite(Vector3 position, Vector2 size, Color color, Texture texture = null, Rectangle?textureArea = null, bool flipX = false, bool flipY = false)
{
SpriteBatchBase <VertexData> batch = GetBatch();
Span <VertexData> vertices = batch.GetData(texture);
Debug.Assert(vertices.Length >= 4);
VertexData.SpriteToVertexData(vertices, position, size, color, texture, textureArea, flipX, flipY);
}
/// <summary>
/// Render a line made out of quads.
/// </summary>
/// <param name="pointOne">The point to start the line.</param>
/// <param name="pointTwo">The point to end the line at.</param>
/// <param name="color">The color of the line.</param>
/// <param name="thickness">The thickness of the line.</param>
public void RenderLine(Vector3 pointOne, Vector3 pointTwo, Color color, float thickness = 1f)
{
SpriteBatchBase <VertexData> batch = GetBatch();
Span <VertexData> vertices = batch.GetData(null);
Vector2 normal = Vector2.Normalize(new Vector2(pointTwo.Y - pointOne.Y, -(pointTwo.X - pointOne.X))) * thickness;
float z = Math.Max(pointOne.Z, pointTwo.Z);
vertices[0].Vertex = new Vector3(pointOne.X + normal.X, pointOne.Y + normal.Y, z);
vertices[1].Vertex = new Vector3(pointTwo.X + normal.X, pointTwo.Y + normal.Y, z);
vertices[2].Vertex = new Vector3(pointTwo.X - normal.X, pointTwo.Y - normal.Y, z);
vertices[3].Vertex = new Vector3(pointOne.X - normal.X, pointOne.Y - normal.Y, z);
uint c = color.ToUint();
vertices[0].Color = c;
vertices[1].Color = c;
vertices[2].Color = c;
vertices[3].Color = c;
}
/// <summary>
/// Renders a sprite without a texture, but with uploaded UVs.
/// If no uvRect is provided 0, 1, 1, 0 is uploaded instead.
/// </summary>
public void RenderUVRect(Vector3 pos, Vector2 size, Color color, Rectangle?uvRect = null)
{
SpriteBatchBase <VertexData> batch = GetBatch();
Span <VertexData> vertices = batch.GetData(null);
vertices[0].Vertex = pos;
vertices[1].Vertex = new Vector3(pos.X + size.X, pos.Y, pos.Z);
vertices[2].Vertex = new Vector3(pos.X + size.X, pos.Y + size.Y, pos.Z);
vertices[3].Vertex = new Vector3(pos.X, pos.Y + size.Y, pos.Z);
uint c = color.ToUint();
vertices[0].Color = c;
vertices[1].Color = c;
vertices[2].Color = c;
vertices[3].Color = c;
Rectangle uv = uvRect ?? new Rectangle(0, 1, 1, 0);
vertices[0].UV = new Vector2(uv.X, uv.Y);
vertices[1].UV = new Vector2(uv.Width, uv.Y);
vertices[2].UV = new Vector2(uv.Width, uv.Height);
vertices[3].UV = new Vector2(uv.X, uv.Height);
}
