ITile FindSpawnTile()
{
Vector3Int myPos = Vector3Int.FloorToInt(transform.position);
int x = 0;
int z = -1;
for (; x < attachment.GetDimension().x; x++)
{
ITile tile = map.GetTile(myPos.x + x, myPos.z + z);
if (tile != null && tile.GetAttachment() is Road)
{
return(tile);
}
}
z++;
for (; z < attachment.GetDimension().z; z++)
{
ITile tile = map.GetTile(myPos.x + x, myPos.z + z);
if (tile != null && tile.GetAttachment() is Road)
{
return(tile);
}
}
x--;
for (; x > -1; x--)
{
ITile tile = map.GetTile(myPos.x + x, myPos.z + z);
if (tile != null && tile.GetAttachment() is Road)
{
return(tile);
}
}
z--;
for (; z > -1; z--)
{
ITile tile = map.GetTile(myPos.x + x, myPos.z + z);
if (tile != null && tile.GetAttachment() is Road)
{
return(tile);
}
}
return(null);
}
public void DrawPreview(Map map, Vector3Int coordinate, GameObject brushPrefab)
{
if (!previewObject && brushPrefab != null)
{
previewObject = Instantiate(brushPrefab);
attachment = previewObject.GetComponentInChildren(typeof(IAttachment)) as IAttachment;
previewObjectRenderers = previewObject.GetComponentsInChildren <Renderer>();
}
if (previewObject)
{
previewObject.transform.position = new Vector3(coordinate.x, 0, coordinate.z);
if (map.IsWithinBounds(coordinate.x, coordinate.z) &&
map.IsWithinBounds(coordinate.x + attachment.GetDimension().x - 1,
coordinate.z + attachment.GetDimension().z - 1))
{
previewObject.SetActive(true);
}
else
{
previewObject.SetActive(false);
}
bool occupied = map.IsTileSpaceOccupied(coordinate.x,
coordinate.z,
attachment.GetDimension().x,
attachment.GetDimension().z);
if (occupied)
{
foreach (Renderer rend in previewObjectRenderers)
{
rend.material.color = Color.red;
}
}
else
{
foreach (Renderer rend in previewObjectRenderers)
{
rend.material.color = Color.green;
}
}
}
}
public bool Attach(int x, int z, GameObject attachmentPrefab)
{
if (x < 0 || x >= mapData.width)
{
return(false);
}
if (z < 0 || z >= mapData.length)
{
return(false);
}
Tile tile = GetTile(x, z);
if (!tile.HasAttachment())
{
GameObject attachmentGO = Instantiate(attachmentPrefab);
attachmentGO.transform.SetParent(transform);
attachmentGO.transform.localPosition = Vector3.zero;
attachmentGO.transform.position = new Vector3(x, 0, z);
IAttachment attachment = attachmentGO.GetComponent(typeof(IAttachment)) as IAttachment;
// A large attachment occupies more than one tile, therefore we must ensure that none of the affected tiles have any attachment.
Vector3Int dim = attachment.GetDimension();
if (IsTileSpaceOccupied(x, z, dim.x, dim.z))
{
Debug.LogWarning("Can not attach object to tile. At least one tile is already occupied...");
Destroy(attachmentGO);
return(false);
}
bool attached = tile.Attach(attachment);
if (attached)
{
bool claimedTiles = AssignClaimantToTiles(x, z, dim.x, dim.z);
if (!claimedTiles)
{
Debug.LogError("Failed to claim nearby tiles!");
return(false);
}
List <ITile> adjacentTiles = GetAdjacentTiles(x, z);
foreach (ITile adjacentTile in adjacentTiles)
{
adjacentTile.OnNeighborChanged(tile);
tile.OnNeighborChanged(adjacentTile);
}
return(true);
}
else
{
Debug.LogError("Failed to attach...");
return(false);
}
}
else
{
Debug.LogWarning("Failed to attach, because the tile already has an attachment...");
return(false);
}
}