public void AddRectangle(Vector3 pos, Vector2 dimensions, float rot)
{
Vector3 vert = new Vector3(0, 0, pos.Z);
// bottom left corner
vert.X = -dimensions.X / 2.0f;
vert.Y = -dimensions.Y / 2.0f;
vert = new Vector3(JabMath.RotateVector(new Vector2(vert.X, vert.Y), rot).X, JabMath.RotateVector(new Vector2(vert.X, vert.Y), rot).Y, pos.Z);
vert += pos;
AddVertex(vert);
// bottom right corner
vert.X = dimensions.X / 2.0f;
vert.Y = -dimensions.Y / 2.0f;
vert = new Vector3(JabMath.RotateVector(new Vector2(vert.X, vert.Y), rot).X, JabMath.RotateVector(new Vector2(vert.X, vert.Y), rot).Y, pos.Z);
vert += pos;
AddVertex(vert);
// top left corner
vert.X = -dimensions.X / 2.0f;
vert.Y = dimensions.Y / 2.0f;
vert = new Vector3(JabMath.RotateVector(new Vector2(vert.X, vert.Y), rot).X, JabMath.RotateVector(new Vector2(vert.X, vert.Y), rot).Y, pos.Z);
vert += pos;
AddVertex(vert);
rot += 1.0f * (float)Math.PI;
// bottom left corner
vert.X = -dimensions.X / 2.0f;
vert.Y = -dimensions.Y / 2.0f;
vert = new Vector3(JabMath.RotateVector(new Vector2(vert.X, vert.Y), rot).X, JabMath.RotateVector(new Vector2(vert.X, vert.Y), rot).Y, pos.Z);
vert += pos;
AddVertex(vert);
// bottom right corner
vert.X = dimensions.X / 2.0f;
vert.Y = -dimensions.Y / 2.0f;
vert = new Vector3(JabMath.RotateVector(new Vector2(vert.X, vert.Y), rot).X, JabMath.RotateVector(new Vector2(vert.X, vert.Y), rot).Y, pos.Z);
vert += pos;
AddVertex(vert);
// top left corner
vert.X = -dimensions.X / 2.0f;
vert.Y = dimensions.Y / 2.0f;
vert = new Vector3(JabMath.RotateVector(new Vector2(vert.X, vert.Y), rot).X, JabMath.RotateVector(new Vector2(vert.X, vert.Y), rot).Y, pos.Z);
vert += pos;
AddVertex(vert);
}