bool checkWalkable(Vector3 position, Vector3 direction)
{
Vector3 walkPosition = position + direction;
Vector3 floorCubePosition = walkPosition + new Vector3(0, -1, 0);
SimplePathElement walkElement = null;
SimplePathElement floorElement = null;
level.GetAllElements().TryGetValue(walkPosition, out walkElement);
level.GetAllElements().TryGetValue(floorCubePosition, out floorElement);
if (floorElement != null)
{
if (floorElement.topBarrier == Barrier.Walkable)
{
if (walkElement != null)
{
if (walkElement.getBarrierByDirection(-direction) == Barrier.Walkable)
{
return(true);
}
}
else
{
return(true);
}
}
}
return(false);
}
//Liste aller benachbarten PathElements
List <AStarObject> findAdjacents(AStarObject ao)
{
List <AStarObject> adjacents = new List <AStarObject>();
//Check if curretn Position is PathElement
SimplePathElement currentPositionElement = null;
level.GetAllElements().TryGetValue(ao.getPosition(), out currentPositionElement);
Vector3[] directions =
{
Vector3.forward,
Vector3.back,
Vector3.left,
Vector3.right
};
if (currentPositionElement != null)
{
foreach (Vector3 direction in directions)
{
if (currentPositionElement.getBarrierByDirection(direction) == Barrier.Walkable)
{
AStarObject newAO = getAdjacent(ao, ao.getPosition(), direction);
if (newAO != null)
{
adjacents.Add(newAO);
}
}
}
}
else
{
foreach (Vector3 direction in directions)
{
AStarObject newAO = getAdjacent(ao, ao.getPosition(), direction);
if (newAO != null)
{
adjacents.Add(newAO);
}
}
}
return(adjacents);
}
AStarObject getAdjacent(AStarObject ao, Vector3 position, Vector3 direction)
{
Vector3 walkPosition = position + direction;
Vector3 floorCubePosition = walkPosition + new Vector3(0, -1, 0);
SimplePathElement walkElement = null;
SimplePathElement floorElement = null;
level.GetAllElements().TryGetValue(walkPosition, out walkElement);
level.GetAllElements().TryGetValue(floorCubePosition, out floorElement);
//Normal Walk
if (walkElement != null)
{
if (walkElement.bottomBarrier == Barrier.Walkable && walkElement.getBarrierByDirection(-direction) == Barrier.Walkable)
{
//Adjazenz Block existiert
return(new AStarObject(ao, position + direction));
}
}
else
{
if (floorElement != null)
{
if (floorElement.topBarrier == Barrier.Walkable)
{
//Adjazenz Block existiert
return(new AStarObject(ao, position + direction));
}
}
}
//Stairs Up
if (walkElement != null)
{
if (walkElement.getBarrierByDirection(-direction) == Barrier.Stairs)
{
SimplePathElement aboveStairEntry = null;
Vector3 aboveStairEntryPosition = position + Vector3.up;
level.GetAllElements().TryGetValue(aboveStairEntryPosition, out aboveStairEntry);
if (aboveStairEntry == null)
{
//checke Treppen Ende
return(getAdjacent(ao, position + direction + Vector3.up, direction));
}
}
}
//Stairs Down
if (walkElement == null)
{
if (floorElement != null)
{
if (floorElement.topBarrier == Barrier.Stairs)
{
if (floorElement.getBarrierByDirection(direction) == Barrier.Stairs)
{
SimplePathElement aboveStairExit = null;
Vector3 aboveStairExitPosition = walkPosition + direction;
level.GetAllElements().TryGetValue(aboveStairExitPosition, out aboveStairExit);
if (aboveStairExit == null)
{
//checke Treppen Start
return(getAdjacent(ao, position + direction + Vector3.down, direction));
}
}
}
}
}
return(null);
}
