// add a tile to a position in this chunk
public bool addTile(Vector3Int worldPos, ItemGroup itemGroup)
{
// get the locaion of this tile but to the local chunk Coord
Vector3Int localPos = ChunkHelpers.convertWorldCoordToLocalCoord(worldPos, chunkX);
// if the tile is outside the chunk then do not add it, or it is air
if (!isThisTileInThisChunk(localPos) || itemGroup.id == 0)
{
return(false);
}
// if there is no tile in this area then add the new one else return false
if (tilemap.GetTile(worldPos) == null)
{
// set the correct value in the tile id array
tileIDs[localPos.x, localPos.y] = itemGroup.id;
// change the tile map to fit that change
tilemap.SetTile(worldPos, itemGroup.tile);
// check if this tile needs a respective tile entity
GameObject blockEntity = itemGroup.blockEntity;
if (blockEntity != null)
{
// create a copy of the block entity needed and add that to the
// block entity list
GameObject createdBlockEntity = Instantiate(blockEntity, new Vector3(worldPos.x + 0.5f, worldPos.y + 0.5f, worldPos.z), new Quaternion(), transform);
blockEntities.Add(createdBlockEntity);
}
return(true);
}
else
{
return(false);
}
}
// removes a tile from the location asked and returns the
// id of that tile
public int removeTile(Vector3Int worldPos)
{
Vector3Int localPos = ChunkHelpers.convertWorldCoordToLocalCoord(worldPos, chunkX);
// if this tile is in the chunk bounds then return the tileID
// at that location, else return the flag - 1
if (isThisTileInThisChunk(localPos) && tilemap.GetTile(worldPos) != null)
{
// get the id of the tile that is there
int idOfThatTile = tileIDs[localPos.x, localPos.y];
// if the tile is indestructable then return minus and do not remove the tile
if (refrenceManager.itemGroups[idOfThatTile].indestructable)
{
return(-1);
}
// remove that tile from the til map
tilemap.SetTile(worldPos, null);
// set the id of the tile in out tileID array to 0
tileIDs[localPos.x, localPos.y] = 0;
// if the item has an associated blovk entity
if (refrenceManager.itemGroups[idOfThatTile].blockEntity != null)
{
// go through each block entity and see if is in the same position as the tile we are removing
foreach (GameObject blockEntity in blockEntities)
{
if (Mathf.FloorToInt(blockEntity.transform.position.x) == worldPos.x && Mathf.FloorToInt(blockEntity.transform.position.y) == worldPos.y)
{
GameObject.Destroy(blockEntity);
}
}
}
int itemDropId = refrenceManager.itemGroups[idOfThatTile].dropItemId;
// if the tile can drop an item
if (itemDropId != 0)
{
// create an ItemEntity
GameObject itemObject = Instantiate(itemEntityPrefab, new Vector3(worldPos.x + 0.5f, worldPos.y + 0.5f, worldPos.z), new Quaternion(0f, 0f, 0f, 0f), transform);
ItemEntity itemEntity = itemObject.GetComponent <ItemEntity>();
itemEntity.itemGroup = refrenceManager.itemGroups[itemDropId];
// initzialize the entity
itemEntity.init();
// add the item object to the chunk entities
itemEntities.Add(itemObject);
}
// return the id of the tile we broke
return(idOfThatTile);
}
else
{
return(-1);
}
}
