public void Draw(SpriteBatch sprite_batch)
{
var viewMatrix = m_camera.GetTransform();
// World
sprite_batch.Begin(SpriteSortMode.Deferred, BlendState.NonPremultiplied, null, null, null, null, viewMatrix);
m_stagemanager.Draw(sprite_batch);
dots.Draw(sprite_batch);
sprite_batch.End();
// draw UI
sprite_batch.Begin(SpriteSortMode.Immediate, BlendState.AlphaBlend, null, null, new RasterizerState {
ScissorTestEnable = true
}, null, null);
ui_manager.DrawUI(sprite_batch);
sprite_batch.End();
}