private BlockPlacementPermission PreviewPlacement(out Vector3Int coordinateToPlace)
{
coordinateToPlace = Vector3Int.zero;
if (UIHelper.IsMouseOverUI())
{
return(BlockPlacementPermission.OutOfRange);
}
Ray ray = activeCamera.ScreenPointToRay(Input.mousePosition);
if (Physics.Raycast(ray, out RaycastHit hit, 100f, layerMask))
{
Stub stub = hit.transform.GetComponent <Stub>();
if (stub == null)
{
return(BlockPlacementPermission.OutOfRange);
}
//Debug.Log("hit stub: " + stub.name);
//g.transform.position = hit.point;
coordinateToPlace = stub.BlockCoordinate + Vector3Int.up;
BlockPlacementPermission canPlace = WorldGrid.CanPlace(previewBlock, coordinateToPlace);
//Debug.Log("try : " + coordinateToPlace + ": " + canPlace.ToString(), stub);
while (canPlace == BlockPlacementPermission.Occupied)
{
coordinateToPlace += Vector3Int.up;
//Debug.Log("try : " + coordinateToPlace, stub);
canPlace = WorldGrid.CanPlace(previewBlock, coordinateToPlace);
}
if (canPlace == BlockPlacementPermission.Valid)
{
//Debug.Log("can : " + coordinateToPlace, stub);
Vector3 previewPosition = WorldGrid.CoordinateToWorldPosition(coordinateToPlace);
previewBlock.transform.position = previewPosition;
}
return(canPlace);
}
return(BlockPlacementPermission.OutOfRange);
}
private void Update()
{
if (Input.GetKeyDown(KeyCode.RightArrow))
{
prefabIndex = (prefabIndex + 1) % blockPrefabs.Length;
CreatePreviewBlock();
}
if (Input.GetKeyDown(KeyCode.LeftArrow))
{
prefabIndex = (prefabIndex - 1);
if (prefabIndex < 0)
{
prefabIndex = blockPrefabs.Length - 1;
}
CreatePreviewBlock();
}
if (Input.GetKeyDown(KeyCode.R))
{
RotateClockwise();
}
BlockPlacementPermission canPlace = PreviewPlacement(out Vector3Int coordinateToPlace);
if (canPlace == BlockPlacementPermission.Valid)
{
previewBlock.gameObject.SetActive(true);
if (Input.GetMouseButtonDown(0))
{
PlaceBlockAt(coordinateToPlace);
}
}
else
{
previewBlock.gameObject.SetActive(false);
}
}
