func (n *Npc) OnCreatureMove(_creature pul.ICreature, _from pul.ITile, _to pul.ITile, _teleport bool) {
// Check if _creature is a Player, otherwise return
if _creature.GetType() != CTYPE_PLAYER {
return
}
canSeeFromTile := CanSeePosition(n.GetPosition(), _from.GetPosition())
canSeeToTile := CanSeePosition(n.GetPosition(), _to.GetPosition())
if canSeeFromTile && !canSeeToTile { // Leaving viewport
n.RemoveVisibleCreature(_creature)
_creature.RemoveVisibleCreature(n)
} else if canSeeToTile && !canSeeFromTile { // Entering viewport
n.AddVisibleCreature(_creature)
_creature.RemoveVisibleCreature(n)
} else { // Moving inside viewport
n.AddVisibleCreature(_creature)
_creature.AddVisibleCreature(n)
}
}
func (m *SendTilesMessage) AddTile(_tile pul.ITile) {
m.Tiles[_tile.GetPosition().Hash()] = _tile
}