/// <summary>
/// Finds a node to wander
/// </summary>
/// <param name="pea"></param>
/// <returns></returns>
protected void FindWanderNode(DataPea pea, Node<MoveNode> prev = null)
{
var snapshot = GetSnapshot(pea);
var block = pea.GridPosition.Y >= 0 ? _grid.Grid[pea.GridPosition.X][pea.GridPosition.Y] : new DataBlock(new Point(pea.GridPosition.X, pea.GridPosition.Y - 1), BlockType.None, null);
var node = (prev == null) ? (snapshot.WanderingNode.HasValue &&
snapshot.WanderingNode.Value.Action != MoveNode.Type.None &&
snapshot.WanderingNode.Value.Position == pea.GridPosition
? new Node<MoveNode>() { Value = snapshot.WanderingNode.Value }
: CreateNode(block, MoveNode.Type.Walk, MoveNode.Direction.None)
) : prev;
var possibleNodes = CreateMoveNodesFrom(node);
if (possibleNodes.Count > 0)
{
// Find nodes that go higher (non walk nodes and non lineair jumps)
var nonwalk = possibleNodes.Where(a => a.Value.Action != MoveNode.Type.Walk &&
!((a.Value.Action == MoveNode.Type.Jump) && (a.Value.Dir == MoveNode.Direction.None)));
// Limit to these if needed
if (nonwalk.Count() > 0) {
possibleNodes = nonwalk.ToList();
}
else if (DataPea.Random.Next(100) < 10)
{
snapshot.Wander(node.Value, null);
pea.Jump(null);
return;
}
snapshot.Wander(node.Value, possibleNodes[DataPea.Random.Next(possibleNodes.Count)].Value);
}
else
{
snapshot.Wander(node.Value, null);
pea.Jump(null);
}
}
/// <summary>
/// Jumping start
/// </summary>
/// <param name="pea"></param>
/// <param name="gameTime"></param>
public void Jump(DataPea pea, GameTime gameTime)
{
var snapshot = GetSnapshot(pea);
var d = (snapshot.Target.Source.Position + Vector2.UnitX * 35 - Vector2.UnitY * 8 - pea.Position);
// If not in range of the target, stop jumping
if (d.Length() > 5 || !IsValid(snapshot.Target) ||
((snapshot.Target.Placement == DataJumpSpot.Location.Left ?
(snapshot.Target.Source == null ? snapshot.Target : snapshot.Target.Source.JumpLeft) :
(snapshot.Target.Source == null ? snapshot.Target : snapshot.Target.Source.JumpRight)) ?? snapshot.Target).HasJumped(pea))
{
// TODO REMOVE JUMPSPOT FROM CANDIDATES
snapshot.Target = null;
return;
}
pea.Jump(snapshot.Target);
}