public BlockData GetNextCombinableBlock(GamingLogic2048.EPushingDirection _direction) //獲得某個方位上的下一個可結合之格子，沒辦法的話就回傳null
{
BlockData nextCombinableBlock = null;
BlockData nextBlock = this.GetNeighbor(_direction);
if (nextBlock != null)
{
if (nextBlock.Conbinable)
{
nextCombinableBlock = nextBlock;
}
else
{
switch (nextBlock.m_eBlockType)
{
case EBlockType.Obstruct: //障礙格子什麼也不做，自然的讓函式回傳null
nextCombinableBlock = null;
break;
case EBlockType.None: //空洞格子會一路繼續找下去，直到找到底或著下個可判斷的格子為止
nextCombinableBlock = nextBlock.GetNextCombinableBlock(_direction);
break;
}
}
}
return(nextCombinableBlock);
}
public void SetNeighbor(BlockData _anotherBlock, GamingLogic2048.EPushingDirection _eDirection)
{
int iThisToNeighbor = (int)_eDirection; //自己看鄰居的方向
int iNeighborToThis = (int)GamingLogic2048.GetOppositeDirection(_eDirection); //鄰居看自己的方向
this.m_arrNeighbor[iThisToNeighbor] = _anotherBlock;
_anotherBlock.m_arrNeighbor[iNeighborToThis] = this;
}
public bool TryToCombine(GamingLogic2048.EPushingDirection _direction)
{
bool bCanCombine = false;
BlockData anotherBlock = this.GetNeighbor(_direction);
if (anotherBlock != null)
{
switch (anotherBlock.m_eBlockType)
{
case EBlockType.Normal:
bCanCombine = true;
break;
case EBlockType.Obstruct:
bCanCombine = false;
break;
case EBlockType.None:
bCanCombine = anotherBlock.TryToCombine(_direction);
break;
}
}
return(bCanCombine);
}
public BlockData GetNeighbor(GamingLogic2048.EPushingDirection _direction)
{
int iThisToNeighbor = (int)_direction; //自己看鄰居的方向
return(this.m_arrNeighbor[iThisToNeighbor]);
}