public RenderState Prepare(bool drawHint)
{
Coordinates focusedTile = _gameState.Camera.FocusedTile;
Point dist = new Point((_gameState.Camera.GetWidth() / 2 / Game.Unit) + 1,
_gameState.Camera.GetHeight() / 2 / Game.Unit);
Point renderBegin = new Point(Math.Max(0, focusedTile.X - dist.X),
Math.Max(0, focusedTile.Y - dist.Y - 1));
Point renderEnd = new Point(Math.Min(Width, focusedTile.X + dist.X + 1),
Math.Min(Height, focusedTile.Y + dist.Y + 6));
EntityColection onScreenEntities = new EntityColection();
EntityColection aliveEntities = new EntityColection();
for (int x = renderBegin.X; x < renderEnd.X; x++)
{
for (int y = renderBegin.Y; y < renderEnd.Y; y++)
{
onScreenEntities.AddRange(GetEntitiesAt(x, y));
}
}
if (drawHint)
{
onScreenEntities.SortForRender();
}
// TODO: For now the alives entities is equal to on screen entities,
// BUT: in the futur this will depend on the field of view of all the player connected on the server.
aliveEntities.AddRange(onScreenEntities);
return(new RenderState(renderBegin, renderEnd, onScreenEntities, aliveEntities));
}
public RenderState(Point renderBegin, Point renderEnd, EntityColection onScreenEntities, EntityColection aliveEntities)
{
RenderBegin = renderBegin;
RenderEnd = renderEnd;
OnScreenEntities = onScreenEntities;
AliveEntities = aliveEntities;
}
