/// <summary>
/// Spawns new food in columns that have missing ones
/// </summary>
/// <param name="columnsWithMissingFood"></param>
/// <returns>Info about new foods created</returns>
private AlteredFoodInfo CreateNewFoodInSpecificColumns(IEnumerable <int> columnsWithMissingFood)
{
AlteredFoodInfo newFoodInfo = new AlteredFoodInfo();
//find how many null values the column has
foreach (int column in columnsWithMissingFood)
{
var emptyItems = shapes.GetEmptyItemsOnColumn(column);
foreach (var item in emptyItems)
{
var go = GetRandomFood();
GameObject newFood = Instantiate(go, SpawnPositions[column], Quaternion.identity)
as GameObject;
newFood.GetComponent <Shape>().Assign(go.GetComponent <Shape>().Type, item.Row, item.Column);
newFood.transform.localScale = new Vector3(FoodSize.x, FoodSize.y, 1.0f);
if (Constants.Rows - item.Row > newFoodInfo.MaxDistance)
{
newFoodInfo.MaxDistance = Constants.Rows - item.Row;
}
shapes[item.Row, item.Column] = newFood;
newFoodInfo.AddFood(newFood);
}
}
return(newFoodInfo);
}
/// <summary>
/// Collapses the array on the specific columns, after checking for empty items on them
/// </summary>
/// <param name="columns"></param>
/// <returns>Info about the GameObjects that were moved</returns>
public AlteredFoodInfo Collapse(IEnumerable <int> columns)
{
AlteredFoodInfo collapseInfo = new AlteredFoodInfo();
///search in every column
foreach (var column in columns)
{
//begin from bottom row
for (int row = 0; row < Constants.Rows - 1; row++)
{
//if you find a null item
if (shapes[row, column] == null)
{
//start searching for the first non-null
for (int row2 = row + 1; row2 < Constants.Rows; row2++)
{
//if you find one, bring it down (i.e. replace it with the null you found)
if (shapes[row2, column] != null)
{
shapes[row, column] = shapes[row2, column];
shapes[row2, column] = null;
//calculate the biggest distance
if (row2 - row > collapseInfo.MaxDistance)
{
collapseInfo.MaxDistance = row2 - row;
}
//assign new row and column (name does not change)
shapes[row, column].GetComponent <Shape>().Row = row;
shapes[row, column].GetComponent <Shape>().Column = column;
collapseInfo.AddFood(shapes[row, column]);
break;
}
}
}
}
}
return(collapseInfo);
}
