public void AddToPlacementGrid(Mesh mesh, Chunk chunk, Transform chunkTransform)
{
if (_placementGrid.ContainsKey(chunk))
{
return;
}
List <Vector3> centerPoints = new List <Vector3>();
Vector3 firstPoint = new Vector3();
Vector3 lastPoint = new Vector3();
List <PlaceableCell> placeableCells = new List <PlaceableCell>();
//For every square (4 vertices) store the center point
int length = mesh.vertices.Length;
for (int i = 0; i < length; i += 4)
{
firstPoint = mesh.vertices [i]; //1
lastPoint = mesh.vertices [i + 2]; //3
Vector3 centerPoint = ((chunkTransform.transform.TransformPoint(firstPoint) + chunkTransform.transform.TransformPoint(lastPoint)) / 2);
centerPoints.Add(centerPoint);
PlaceableCell cell = new PlaceableCell(centerPoint, null, chunk);
placeableCells.Add(cell);
}
_placementGrid.Add(chunk, placeableCells);
}
private PlaceableCell GetNearestPlaceableCell(List <PlaceableCell> placeableCells, Vector3 position)
{
float shortestDistance = float.PositiveInfinity;
float currentDistance;
PlaceableCell nearestPlaceableCell = null;
Debug.Log(placeableCells);
int length = placeableCells.Count;
for (int i = 0; i < length; i++)
{
currentDistance = Vector3.Magnitude(placeableCells [i].Position - position);
if (currentDistance == float.PositiveInfinity && nearestPlaceableCell == null)
{
nearestPlaceableCell = placeableCells [i];
}
if (currentDistance < shortestDistance)
{
shortestDistance = currentDistance;
nearestPlaceableCell = placeableCells [i];
}
}
return(nearestPlaceableCell);
}
private PlaceableCell GetNearestPlaceableCell(Vector3 position, Chunk chunk = null)
{
PlaceableCell nearestPlaceableCell = null;
float shortestDistance = float.PositiveInfinity;
float currentDistance;
//Search in all chunks of the list
if (chunk == null)
{
PlaceableCell currentNearestPlaceableCell = null;
foreach (KeyValuePair <Chunk, List <PlaceableCell> > currentChunk in _placementGrid)
{
currentNearestPlaceableCell = GetNearestPlaceableCell(currentChunk.Value, position);
//Debug.Log( currentNearestPlaceableCell );
currentDistance = Vector3.Magnitude(currentNearestPlaceableCell.Position - position);
if (currentDistance < shortestDistance)
{
shortestDistance = currentDistance;
nearestPlaceableCell = currentNearestPlaceableCell;
}
}
}
else //Search directly in the chunk
{
nearestPlaceableCell = GetNearestPlaceableCell(chunk, position);
}
return(nearestPlaceableCell);
}
private void PlaceSelectedPlaceableObject(Vector3 clickPoint)
{
PlaceableCell cellToPlace = GetNearestPlaceableCell(clickPoint);
if (cellToPlace.IsFree())
{
cellToPlace.AddPlaceable(_selectedPlaceableObject);
_selectedPlaceableObject = null;
_selectedPleacableGameObject.transform.position = cellToPlace.Position;
//_selectedPleacableGameObject.transform.SetParent( cellToPlace to place chunk transform );
}
}
private void MoveSelectedPlaceableObject(Vector3 mousePoint)
{
PlaceableCell cellToPlace = GetNearestPlaceableCell(mousePoint);
if (cellToPlace == null)
{
return;
}
if (cellToPlace.IsFree())
{
_selectedPleacableGameObject.transform.position = cellToPlace.Position;
}
}
private PlaceableCell GetNearestPlaceableCell(Chunk chunk, Vector3 position)
{
PlaceableCell nearestCell = null;
List <PlaceableCell> placeableCells;
if (_placementGrid.TryGetValue(chunk, out placeableCells))
{
nearestCell = GetNearestPlaceableCell(placeableCells, position);
}
return(nearestCell);
}
