public override void Draw(SharpGL.OpenGL gl) { if ( _trail > 1) { for ( int t = 0; t<_trail;t++ ) { PointFloat trailPos = GetPosition(); PointFloat vel = GetVelocity(); PointFloat dit = new PointFloat(trailPos.x - vel.x*t, trailPos.y - vel.y*t); PointFloat[] pointData = RenderLogics.RectPoint(dit, GetSize(), GetRotation()); GetTexture().UseTexure(gl); gl.Begin(OpenGL.GL_QUADS); byte[] col = GetColor(); gl.Color(col[0], col[1], col[2]); gl.TexCoord(0, 0); gl.Vertex(pointData[1].x, pointData[1].y); gl.TexCoord(0, 1); gl.Vertex(pointData[0].x, pointData[0].y); gl.TexCoord(1, 1); gl.Vertex(pointData[3].x, pointData[3].y); gl.TexCoord(1, 0); gl.Vertex(pointData[2].x, pointData[2].y); gl.End(); } } base.Draw(gl); }