private void MoveGrid(GridHolder[] gridHolders, List<IGridActionCommand> commands)
{
foreach (var gridHolder in gridHolders)
{
gridHolder.TempItem = gridHolder.GridItem;
}
int top = 0;
for (int current = 1; current < gridHolders.Length;)
{
var currentGridHolder = gridHolders[current];
var topGridHolder = gridHolders[top];
if (currentGridHolder.IsTempNull)
{
++current;
continue;
}
var currentGridEntity = currentGridHolder.TempItem;
if (topGridHolder.IsTempNull)
{
commands.Add(CreateMoveCommand(currentGridHolder, topGridHolder));
gridHolders[current].TempItem = null;
gridHolders[top].TempItem = currentGridEntity;
++current;
continue;
}
var topGridEntity = topGridHolder.TempItem;
if (currentGridEntity.CanMerge(topGridEntity))
{
// 删除被合并方格
commands.Add(CreateGridDeletionCommand(topGridHolder));
// 移动合并方格
commands.Add(CreateMoveCommand(currentGridHolder, topGridHolder));
// 删除移动后的方格
commands.Add(CreateGridDeletionCommand(topGridHolder));
GridItem newGridItem = currentGridEntity.Merge(topGridEntity);
// 创建新的合并后的方块
commands.Add(CreateNewCreatedCommand(topGridHolder, newGridItem));
gridHolders[current].TempItem = null;
gridHolders[top].TempItem = newGridItem;
++top;
++current;
}
else
{
++top;
if (current == top)
{
++current;
}
}
}
}
private static GridNewCreatedCommand CreateNewCreatedCommand(GridHolder holder, GridItem newGridItem)
{
return new GridNewCreatedCommand()
{
Row = holder.Row,
Col = holder.Col,
NewGridItem = newGridItem
};
}
private static GridMoveCommand CreateMoveCommand(GridHolder fromHolder, GridHolder toHolder)
{
return new GridMoveCommand
{
MoveInfo = new GridMoveInfo()
{
FromRow = fromHolder.Row,
FromCol = fromHolder.Col,
ToRow = toHolder.Row,
ToCol = toHolder.Col
}
};
}
private static GridDeletionCommand CreateGridDeletionCommand(GridHolder holder)
{
return new GridDeletionCommand()
{
Row = holder.Row,
Col = holder.Col
};
}
public void MoveUp(List<IGridActionCommand> commands)
{
var gridHolders = new GridHolder[ROW_COUNT];
for (int col = 0; col < COL_COUNT; ++col)
{
int index = 0;
for (int row = 0; row < ROW_COUNT; ++row)
{
gridHolders[index++] = GetGridHolder(row, col);
}
MoveGrid(gridHolders, commands);
}
}
public void InitGrid()
{
_gridData = new GridHolder[ROW_COUNT][];
for (int row = 0; row < ROW_COUNT; ++row)
{
_gridData[row] = new GridHolder[COL_COUNT];
for (int col = 0; col < COL_COUNT; ++col)
{
_gridData[row][col] = new GridHolder(row, col);
}
}
List<IGridActionCommand> commands = new List<IGridActionCommand>();
AddRandomItems(2, commands);
RunCommands(commands);
}