public void FillTriangleFan(Vector2 center, IList <Vector2> ps, Color color)
{
var di = DrawInfo.ForFill(BasicEffect, _blankTexture);
CheckFlush(di);
if (ps.Count < 3)
{
throw new Exception("Triangle fan needs at least 3 points.");
}
var centerIndex = AddVertex(center, color);
var v0 = AddVertex(ps[0], color);
var v1 = AddVertex(ps[0], color);
for (var i = 1; i < ps.Count; i++)
{
var v2 = AddVertex(ps[i], color);
AddIndex(v1);
AddIndex(v2);
AddIndex(centerIndex);
v1 = v2;
}
AddIndex(v1);
AddIndex(v0);
AddIndex(centerIndex);
}
public void FillTriangleStrip(IEnumerable <VertexPos2Texture> ps, Texture2D texture = null, Color?c = null)
{
var color = c ?? Color.White;
var tex = texture ?? _blankTexture;
var di = DrawInfo.ForFill(BasicEffect, tex, PrimitiveType.TriangleStrip);
CheckFlush(di);
var en = ps.GetEnumerator();
if (!en.MoveNext())
{
throw new Exception("Need at least 3 vertices for a triangle strip.");
}
AddIndex(AddVertex(en.Current.Pos, color, en.Current.Uv));
if (!en.MoveNext())
{
throw new Exception("Need at least 3 vertices for a triangle strip.");
}
AddIndex(AddVertex(en.Current.Pos, color, en.Current.Uv));
while (en.MoveNext())
{
AddIndex(AddVertex(en.Current.Pos, color, en.Current.Uv));
}
en.Dispose();
}
public void FillRect(RectangleF rect, Sprite sprite)
{
var di = DrawInfo.ForFill(BasicEffect, sprite.Texture);
CheckFlush(di);
var v1 = AddVertex(new Vector2(rect.Left, rect.Top), sprite.UV1);
var v2 = AddVertex(new Vector2(rect.Right, rect.Top), sprite.UV2);
var v3 = AddVertex(new Vector2(rect.Right, rect.Bottom), sprite.UV3);
var v4 = AddVertex(new Vector2(rect.Left, rect.Bottom), sprite.UV4);
AddIndex(v1);
AddIndex(v2);
AddIndex(v4);
AddIndex(v4);
AddIndex(v2);
AddIndex(v3);
}
public void FillRoundedRect(RectangleF rect, Texture2D tex)
{
var di = DrawInfo.ForFill(BasicEffect, tex);
CheckFlush(di);
var v1 = AddVertex(new Vector2(rect.Left, rect.Top), Vector2.Zero);
var v2 = AddVertex(new Vector2(rect.Right, rect.Top), Vector2.UnitX);
var v3 = AddVertex(new Vector2(rect.Right, rect.Bottom), Vector2.One);
var v4 = AddVertex(new Vector2(rect.Left, rect.Bottom), Vector2.UnitY);
AddIndex(v1);
AddIndex(v2);
AddIndex(v4);
AddIndex(v4);
AddIndex(v2);
AddIndex(v3);
}
public void FillRect(RectangleF rect, Color c1, Color c2, Color c3, Color c4)
{
var di = DrawInfo.ForFill(BasicEffect, _blankTexture);
CheckFlush(di);
var v1 = AddVertex(new Vector2(rect.Left, rect.Top), c1);
var v2 = AddVertex(new Vector2(rect.Right, rect.Top), c2);
var v3 = AddVertex(new Vector2(rect.Right, rect.Bottom), c3);
var v4 = AddVertex(new Vector2(rect.Left, rect.Bottom), c4);
AddIndex(v1);
AddIndex(v2);
AddIndex(v4);
AddIndex(v4);
AddIndex(v2);
AddIndex(v3);
}