/// <summary>
/// Function to create a polygon object.
/// </summary>
/// <param name="name">Name of the polygon.</param>
/// <param name="position">Position of the polygon.</param>
/// <param name="color">Color of the polygon.</param>
/// <param name="vertices">[Optional] Vertices for the polygon.</param>
/// <param name="indices">[Optional] Indices for the polygon.</param>
/// <param name="type">[Optional] The type of primitive to use when drawing the polygon.</param>
/// <param name="useDynamicVertexBuffer">[Optional] TRUE to use a dynamic buffer to hold the vertices, FALSE to use a static buffer.</param>
/// <param name="useDynamicIndexBuffer">[Optional] TRUE to use a dynamic buffer to hold the indices, FALSE to use a static buffer.</param>
/// <returns>A new polygon object.</returns>
/// <remarks>Passing NULL (Nothing in VB.Net) to the <paramref name="indices"/> parameter will disable the index buffer on the polygon. An index buffer can help with performance by
/// decreasing the required number of vertices to be sent to the video device.</remarks>
/// <exception cref="System.ArgumentNullException">Thrown when the <paramref name="name"/> parameter is NULL (Nothing in VB.Net). </exception>
/// <exception cref="System.ArgumentException">Thrown when the <paramref name="name"/> parameter is empty.</exception>
public GorgonPolygon CreatePolygon(string name,
Vector2 position,
GorgonColor color,
GorgonPolygonPoint[] vertices = null,
int[] indices = null,
PolygonType type = PolygonType.Triangle,
bool useDynamicVertexBuffer = false,
bool useDynamicIndexBuffer = false)
{
if (name == null)
{
throw new ArgumentNullException("name");
}
if (string.IsNullOrWhiteSpace(name))
{
throw new ArgumentException(Resources.GOR2D_PARAMETER_MUST_NOT_BE_EMPTY, "name");
}
var result = new GorgonPolygon(_gorgon2D, name, type)
{
UseDynamicVertexBuffer = useDynamicVertexBuffer,
UseDynamicIndexBuffer = useDynamicIndexBuffer,
Color = color,
Position = position
};
if (vertices != null)
{
result.SetVertexData(vertices);
}
if (indices != null)
{
result.SetIndexData(indices);
}
_gorgon2D.TrackedObjects.Add(result);
return(result);
}
public void TestPolygon()
{
_form.Show();
_form.ClientSize = new Size(1280, 800);
_form.Location = new Point(Screen.PrimaryScreen.WorkingArea.Width / 2 - 640, Screen.PrimaryScreen.WorkingArea.Height / 2 - 400);
_form.BringToFront();
_form.WindowState = FormWindowState.Minimized;
_form.WindowState = FormWindowState.Normal;
GorgonPolygon polygon = _renderer.Renderables.CreatePolygon("Test", new Vector2(320, 240), Color.RosyBrown);
polygon.SetVertexData(new GorgonPolygonPoint[]
{
new GorgonPolygonPoint(new Vector2(0, 20), GorgonColor.White),
new GorgonPolygonPoint(new Vector2(20, 0), GorgonColor.White),
new GorgonPolygonPoint(new Vector2(40, 20), GorgonColor.White),
new GorgonPolygonPoint(new Vector2(10, 40), GorgonColor.White),
new GorgonPolygonPoint(new Vector2(30, 40), GorgonColor.White)
});
polygon.SetIndexData(new []
{
0, 1, 2,
2, 3, 0,
3, 2, 4
});
GorgonPolygon polygon2 = _renderer.Renderables.CreatePolygon("Test", new Vector2(320, 240), Color.GreenYellow);
polygon2.PolygonType = PolygonType.Line;
polygon2.SetVertexData(new GorgonPolygonPoint[]
{
new GorgonPolygonPoint(new Vector2(0, 20), GorgonColor.White),
new GorgonPolygonPoint(new Vector2(20, 0), GorgonColor.White),
new GorgonPolygonPoint(new Vector2(40, 20), GorgonColor.White),
new GorgonPolygonPoint(new Vector2(10, 40), GorgonColor.White),
new GorgonPolygonPoint(new Vector2(30, 40), GorgonColor.White)
});
polygon2.SetIndexData(new[]
{
0, 1,
1, 2,
2, 4,
4, 3,
3, 0
});
Gorgon.Run(_form, () =>
{
_renderer.Clear(Color.Black);
polygon.Draw();
polygon2.Draw();
_renderer.Render();
return(true);
});
Assert.IsTrue(_form.TestResult == DialogResult.Yes);
}
