/// <summary>
/// Draws a rectangle using top left and bottom right point with specified colors for each corner.
/// </summary>
public static void Draw(float x1, float y1, float x2, float y2, bool isOutline, Color c1, Color c2, Color c3, Color c4)
{
GraphicsMode mode;
short[] indices;
if (isOutline)
{
mode = GraphicsMode.LinePrimitives;
indices = _rectangleIndices[1];
}
else
{
mode = GraphicsMode.TrianglePrimitives;
indices = _rectangleIndices[0];
}
var vertices = new List <VertexPositionColorTexture>
{
new VertexPositionColorTexture(new Vector3(x1, y1, 0), c1, Vector2.Zero),
new VertexPositionColorTexture(new Vector3(x2, y1, 0), c2, Vector2.Zero),
new VertexPositionColorTexture(new Vector3(x2, y2, 0), c3, Vector2.Zero),
new VertexPositionColorTexture(new Vector3(x1, y2, 0), c4, Vector2.Zero)
};
GraphicsMgr.AddVertices(mode, null, vertices, indices);
}
public void Draw()
{
GraphicsMgr.AddVertices(
_graphicsMode,
_texture,
GetConvertedVertices(),
GetIndices()
);
}
/// <summary>
/// Draws a line with specified colors.
/// </summary>
public static void Draw(float x1, float y1, float x2, float y2, Color c1, Color c2)
{
var vertices = new List <VertexPositionColorTexture>
{
new VertexPositionColorTexture(new Vector3(x1, y1, 0), c1, Vector2.Zero),
new VertexPositionColorTexture(new Vector3(x2, y2, 0), c2, Vector2.Zero)
};
GraphicsMgr.AddVertices(GraphicsMode.LinePrimitives, null, vertices, new short[] { 0, 1 });
}
/// <summary>
/// Draws a line with specified width and colors.
/// </summary>
public static void Draw(float x1, float y1, float x2, float y2, float thickness, Color c1, Color c2)
{
var normal2 = new Vector2(y2 - y1, x1 - x2);
normal2 = normal2.GetSafeNormalize(); // The result is a unit vector rotated by 90 degrees.
normal2 *= thickness / 2;
var normal = normal2.ToVector3();
var vertices = new List <VertexPositionColorTexture>
{
new VertexPositionColorTexture(new Vector3(x1, y1, 0) - normal, c1, Vector2.Zero),
new VertexPositionColorTexture(new Vector3(x1, y1, 0) + normal, c1, Vector2.Zero),
new VertexPositionColorTexture(new Vector3(x2, y2, 0) + normal, c2, Vector2.Zero),
new VertexPositionColorTexture(new Vector3(x2, y2, 0) - normal, c2, Vector2.Zero)
};
// Thick line is in fact just a rotated rectangle.
GraphicsMgr.AddVertices(GraphicsMode.TrianglePrimitives, null, vertices, _thickLineIndices);
}
