public void MoveActor(DynamicActor actor, Vector2 newPos, float newRot)
{
if (actor.CollisionClass == CollisionClass.IsolatedNoPersist)
{
actor.Position = newPos;
actor.Rotation = newRot;
throw new Exception("you really shouldn't be doing this");
return;
}
moveActor_overlaps(actor, newPos, newRot);
}
/// <summary>
/// move an actor, updating ActorOverlaps for all affected tiles
/// </summary>
/// <param name="actor"></param>
/// <param name="newPos"></param>
void moveActor_overlaps(DynamicActor actor, Vector2 newPos, float newRot)
{
var initUV = actor.GetPosUV();
var initProximity = actor.GetProximityOverlaps();
actor.Position = newPos;
actor.Rotation = newRot;
var finalUV = actor.GetPosUV();
var finalProximity = actor.GetProximityOverlaps();
//main events
if (initUV != finalUV)
{
var initTile = TileGrid[initUV];
var finalTile = TileGrid[finalUV];
initTile.OnMainExit(actor, finalTile);
finalTile.OnMainEnter(actor, initTile);
}
//overlap events
//note: could be optimized
foreach (Tile ftile in finalProximity)
{
if (!initProximity.Contains(ftile))
{
lock (ftile.ProximityActors)
{
ftile.ProximityActors.Add(actor);
ftile.OnProximityEnter(actor);
}
}
}
foreach (Tile itile in initProximity)
{
if (!finalProximity.Contains(itile))
{
lock (itile.ProximityActors)
{
itile.ProximityActors.Remove(actor);
itile.OnProximityExit(actor);
}
}
}
}