/// <summary>
/// Is Recursive Method
/// Find match end blocks and swap,move
/// Call OnContainer() and every frame
/// </summary>
/// <returns></returns>
IEnumerator matchDownCoroutine()
{
bool changed = false;
for (int x = 0; x < width; ++x)
{
List <Block> stack = new List <Block>();
for (int y = 0; y < height; ++y)
{
Block block = blockList[x, y];
if (block._State == Block.State.MATCH_END)
{
if (!stack.Contains(block))
{
stack.Add(block);
block._LocalPosition = new Vector2(x, height);
}
}
else if (stack.Count != 0)
{
swap(x, y, x, y - stack.Count);
block.Move(x, y - stack.Count);
changed = true;
}
}
for (int i = 0; i < stack.Count; ++i)
{
Block block = blockList[x, height - i - 1];
block.On();
block.SetRandomColor();
block.Move(x, height - i - 1);
changed = true;
}
}
if (changed)
{
checkCanMatch();
}
yield return(null);
StartCoroutine(matchDownCoroutine());
}
/// <summary>
/// match blocks move
/// </summary>
void matchDown()
{
for (int x = 0; x < width; ++x)
{
List <Block> stack = new List <Block>();
for (int y = 0; y < height; ++y)
{
Block block = blockList[x, y];
if (block._State == Block.State.MATCH_END)
{
if (!stack.Contains(block))
{
stack.Add(block);
block._LocalPosition = new Vector2(x, height);
}
}
else if (stack.Count != 0)
{
swap(x, y, x, y - stack.Count);
block.Move(x, y - stack.Count);
}
}
for (int i = 0; i < stack.Count; ++i)
{
Block block = blockList[x, height - i - 1];
block.On();
block.SetRandomColor();
block.Move(x, height - i - 1);
}
}
}