/// <summary>
/// Draws all LayerElements in view
/// </summary>
/// <param name="camera">Current view to draw</param>
public void Draw(CameraManager camera)
{
//Sorts layers lowest to highest
LayerList.Sort(delegate(Layer x, Layer y)
{
return(x.Depth.CompareTo(y.Depth));
});
//create transformation matrix for different screen resolutions and apply it at drawing
float horScaling = (float)GraphicsDevice.PresentationParameters.BackBufferWidth / BaseScreenSize.X;
float verScaling = (float)GraphicsDevice.PresentationParameters.BackBufferHeight / BaseScreenSize.Y;
Vector3 screenScalingFactor = new Vector3(horScaling, verScaling, 1);
Matrix globalTransformation = Matrix.CreateScale(screenScalingFactor);
SpriteBatch.Begin(SpriteSortMode.Deferred, null, null, null, null, null, globalTransformation);
//apply previous transformation
foreach (Layer l in LayerList)
{
foreach (ISpriteInterface le in l.elementList)
{ //draw texture at position * zoom relative to the camera center at a size*zoom
//The actual position of the element in the world + camera position
//area of the screen ocupied by the element
Rectangle drawElement = getAreaOnScreen(le.Position, le, camera);
//draw only if visible, not need to worry about depth as layers are sorted lowest to highest
if (drawElement.Intersects(camera.DrawArea))
{
le.Draw(SpriteBatch, drawElement, camera);
}
}
if (l.Depth == Player.Depth)
{
Vector2 screenPos = getScreenPos(Player.Position, camera);
Player.Sprite.Draw(SpriteBatch, getAreaOnScreen(Player.Position, Player.Sprite, camera), camera);
}
}
SpriteBatch.End();
}