public void DrawLine(Vector2 p1, Vector2 p2, Color color, int lineWidth = 1)
{
var di = DrawInfo.ForLine(BasicEffect, _blankTexture, lineWidth);
CheckFlush(di);
var v1 = AddVertex(p1, color);
var v2 = AddVertex(p2, color);
AddIndex(v1);
AddIndex(v2);
}
public void DrawRoundedRect(RectangleF rect, Color color, int lineWidth = 1)
{
var di = DrawInfo.ForLine(BasicEffect, _blankTexture, lineWidth);
CheckFlush(di);
var v1 = AddVertex(new Vector2(rect.Left, rect.Top), color);
var v2 = AddVertex(new Vector2(rect.Right, rect.Top), color);
var v3 = AddVertex(new Vector2(rect.Right, rect.Bottom), color);
var v4 = AddVertex(new Vector2(rect.Left, rect.Bottom), color);
AddIndex(v1);
AddIndex(v2);
AddIndex(v2);
AddIndex(v3);
AddIndex(v3);
AddIndex(v4);
AddIndex(v4);
AddIndex(v1);
}
public void DrawLineStrip(IEnumerable <Vector2> points, Color color, int lineWidth = 1)
{
var di = DrawInfo.ForLine(BasicEffect, _blankTexture, lineWidth);
CheckFlush(di);
var enumerator = points.GetEnumerator();
if (!enumerator.MoveNext())
{
throw new Exception("Need at least 3 vertices for a triangle strip.");
}
var v0 = AddVertex(enumerator.Current, color);
while (enumerator.MoveNext())
{
var v1 = AddVertex(enumerator.Current, color);
AddIndex(v0);
AddIndex(v1);
v0 = v1;
}
enumerator.Dispose();
}