public void MoveButtons(GameButton button, SLIDE_DIRECTION dir)
{
int row = (buttonCount - (buttonCount - button.index)) / fieldSize;
int[] indexes = new int[(int)Mathf.Sqrt(buttonCount)];
int currentIndex = 0;
for (int i = 0; i < indexes.Length; i++)
{
indexes[i] = -1;
}
switch (dir)
{
case SLIDE_DIRECTION.TOP:
for (int i = button.index; i >= 0; i -= fieldSize)
{
if (i - fieldSize < 0) //out of bounds
{
if (buttons[i].isEmptyCell)
{
GameButton temp = buttons[emptyButtonIndex];
for (int j = indexes.Length - 1; j >= 0; j--)
{
if (indexes[j] >= 0)
{
buttons[indexes[j] - fieldSize] = buttons[indexes[j]];
buttons[indexes[j] - fieldSize].SetIndex(indexes[j] - fieldSize);
buttons[indexes[j]].Move(dir);
}
}
if (indexes[0] >= 0)
{
buttons[indexes[0]] = temp;
emptyButtonIndex = indexes[0];
temp.SetIndex(emptyButtonIndex);
}
else
{
buttons[i].Move(dir);
}
break;
}
else
{
break;
}
}
else if (!buttons[i].isEmptyCell)
{
indexes[currentIndex++] = buttons[i].index;
}
else if (buttons[i].isEmptyCell)
{
GameButton temp = buttons[emptyButtonIndex];
for (int j = indexes.Length - 1; j >= 0; j--)
{
if (indexes[j] >= 0)
{
buttons[indexes[j] - fieldSize] = buttons[indexes[j]];
buttons[indexes[j] - fieldSize].SetIndex(indexes[j] - fieldSize);
buttons[indexes[j]].Move(dir);
}
}
if (indexes[0] >= 0)
{
buttons[indexes[0]] = temp;
emptyButtonIndex = indexes[0];
temp.SetIndex(emptyButtonIndex);
}
else
{
buttons[i].Move(dir);
}
break;
}
}
break;
case SLIDE_DIRECTION.DOWN:
for (int i = button.index; i < buttonCount; i += fieldSize)
{
if (i + fieldSize >= buttonCount)
{
if (buttons[i].isEmptyCell)
{
GameButton temp = buttons[emptyButtonIndex];
for (int j = indexes.Length - 1; j >= 0; j--)
{
if (indexes[j] >= 0)
{
buttons[indexes[j] + fieldSize] = buttons[indexes[j]];
buttons[indexes[j] + fieldSize].SetIndex(indexes[j] + fieldSize);
buttons[indexes[j]].Move(dir);
}
}
if (indexes[0] >= 0)
{
buttons[indexes[0]] = temp;
emptyButtonIndex = indexes[0];
temp.SetIndex(emptyButtonIndex);
}
else
{
buttons[i].Move(dir);
}
break;
}
else
{
break;
}
}
else if (!buttons[i].isEmptyCell)
{
indexes[currentIndex++] = buttons[i].index;
}
if (buttons[i].isEmptyCell)
{
GameButton temp = buttons[emptyButtonIndex];
for (int j = indexes.Length - 1; j >= 0; j--)
{
if (indexes[j] >= 0)
{
buttons[indexes[j] + fieldSize] = buttons[indexes[j]];
buttons[indexes[j] + fieldSize].SetIndex(indexes[j] + fieldSize);
buttons[indexes[j]].Move(dir);
}
}
if (indexes[0] >= 0)
{
buttons[indexes[0]] = temp;
emptyButtonIndex = indexes[0];
temp.SetIndex(emptyButtonIndex);
}
else
{
buttons[i].Move(dir);
}
break;
}
}
break;
case SLIDE_DIRECTION.LEFT:
for (int i = button.index; i >= row * fieldSize; i--)
{
if ((i - 1 < 0 || i % fieldSize == 0))
{
if (buttons[i].isEmptyCell)
{
GameButton temp = buttons[emptyButtonIndex];
for (int j = indexes.Length - 1; j >= 0; j--)
{
if (indexes[j] >= 0)
{
buttons[indexes[j] - 1] = buttons[indexes[j]];
buttons[indexes[j] - 1].SetIndex(indexes[j] - 1);
buttons[indexes[j]].Move(dir);
}
}
if (indexes[0] >= 0)
{
buttons[indexes[0]] = temp;
emptyButtonIndex = indexes[0];
temp.SetIndex(emptyButtonIndex);
}
else
{
buttons[i].Move(dir);
}
break;
}
else
{
break;
}
}
else if (!buttons[i].isEmptyCell)
{
indexes[currentIndex++] = buttons[i].index;
}
if (buttons[i].isEmptyCell)
{
GameButton temp = buttons[emptyButtonIndex];
for (int j = indexes.Length - 1; j >= 0; j--)
{
if (indexes[j] >= 0)
{
buttons[indexes[j] - 1] = buttons[indexes[j]];
buttons[indexes[j] - 1].SetIndex(indexes[j] - 1);
buttons[indexes[j]].Move(dir);
}
}
if (indexes[0] >= 0)
{
buttons[indexes[0]] = temp;
emptyButtonIndex = indexes[0];
temp.SetIndex(emptyButtonIndex);
}
else
{
buttons[i].Move(dir);
}
break;
}
}
break;
case SLIDE_DIRECTION.RIGHT:
for (int i = button.index; i <= ((row + 1) * fieldSize) - 1; i++)
{
if ((i + 1 > buttonCount || (i + 1) % fieldSize == 0))
{
if (buttons[i].isEmptyCell)
{
GameButton temp = buttons[emptyButtonIndex];
for (int j = indexes.Length - 1; j >= 0; j--)
{
if (indexes[j] >= 0)
{
buttons[indexes[j] + 1] = buttons[indexes[j]];
buttons[indexes[j] + 1].SetIndex(indexes[j] + 1);
buttons[indexes[j]].Move(dir);
}
}
if (indexes[0] >= 0)
{
buttons[indexes[0]] = temp;
emptyButtonIndex = indexes[0];
temp.SetIndex(emptyButtonIndex);
}
else
{
buttons[i].Move(dir);
}
break;
}
else
{
break;
}
}
else if (!buttons[i].isEmptyCell)
{
indexes[currentIndex++] = buttons[i].index;
}
if (buttons[i].isEmptyCell)
{
GameButton temp = buttons[emptyButtonIndex];
for (int j = indexes.Length - 1; j >= 0; j--)
{
if (indexes[j] >= 0)
{
buttons[indexes[j] + 1] = buttons[indexes[j]];
buttons[indexes[j] + 1].SetIndex(indexes[j] + 1);
buttons[indexes[j]].Move(dir);
}
}
if (indexes[0] >= 0)
{
buttons[indexes[0]] = temp;
emptyButtonIndex = indexes[0];
temp.SetIndex(emptyButtonIndex);
break;
}
else
{
buttons[i].Move(dir);
}
break;
}
}
break;
}
Check();
}