我试图为2048年的简单游戏编写代码。我已经设法实现了在列中移动按钮的功能，并在它们相等的情况下对它们求和，但不知何故，只是在X比率。他们为什么不在Y做同样的事情？
以下是代码：
bool checkIfMoved;
private void Form1_KeyDown(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.Left)
{
checkIfMoved = false;
for (int i = 0; i <= 3; i++)
{
for (int j = 0; j <= 3; j++)
{
if ((j != 0) && (board[i, j].Visible == true) && (board[i, j - 1].Visible == false))
{
moveButton(i, j, e);
}
else if ((j != 0) && (board[i, j].Visible == true) && (board[i, j - 1].Visible == true))
{
sumButtons(i, j, e);
}
}
}
if (checkIfMoved == true)
{
GenerateField();
}
}
else if (e.KeyCode == Keys.Right)
{
checkIfMoved = false;
for (int i = 3; i >= 0; i--)
{
for (int j = 3; j >= 0; j--)
{
if ((j != 3) && (board[i, j].Visible == true) && (board[i, j + 1].Visible == false))
{
moveButton(i, j, e);
}
else if ((j != 3) && (board[i, j].Visible == true) && (board[i, j + 1].Visible == true))
{
sumButtons(i, j, e);
}
}
}
if (checkIfMoved == true)
{
GenerateField();
}
else if (e.KeyCode == Keys.Up)
{
checkIfMoved = false;
for (int i = 0; i <= 3; i++)
{
for (int j = 3; j >= 0; j--)
{
if ((i != 0) && (board[i, j].Visible == true) && (board[i - 1, j].Visible == false))
{
moveButton(i, j, e);
}
else if ((i != 0) && (board[i, j].Visible == true) && (board[i - 1, j].Visible == true))
{
sumButtons(i, j, e);
}
}
if (checkIfMoved == true)
{
GenerateField();
}
}
}
else if (e.KeyCode == Keys.Down)
{
checkIfMoved = false;
for (int i = 3; i >= 0; i--)
{
for (int j = 0; j <= 3; j++)
{
if ((i != 3) && (board[i, j].Visible == true) && (board[i + 1, j].Visible == false))
{
moveButton(i, j, e);
}
else if ((i != 3) && (board[i, j].Visible == true) && (board[i + 1, j].Visible == true))
{
sumButtons(i, j, e);
}
}
}
if (checkIfMoved == true)
{
GenerateField();
}
}
}
}
现在移动和求和功能：
private void moveButton(int i, int j, KeyEventArgs e)
{
SwitchKey Switch = new SwitchKey(i, j, e);
try
{
while (board[Switch.line, Switch.column].Text == "0")
{
board[Switch.line, Switch.column].Text = board[i, j].Text;
board[Switch.line, Switch.column].Visible = true;
board[i, j].Visible = false;
board[i, j].Text = "0";
sumButtons(Switch.line, Switch.column, e);
checkIfMoved = true;
switch(e.KeyCode)
{
case(Keys.Left):
j--;
break;
case(Keys.Right):
j++;
break;
case(Keys.Up):
i--;
break;
case(Keys.Down):
i++;
break;
}
Switch = new SwitchKey(i, j, e);
}
}
catch { }
}
private void sumButtons(int i, int j, KeyEventArgs e)
{
SwitchKey Switch = new SwitchKey(i, j, e);
while ((board[i, j].Text == board[Switch.line,Switch.column].Text))
{
int x;
int y;
Int32.TryParse(board[i, j].Text, out x);
Int32.TryParse(board[Switch.line, Switch.column].Text, out y);
int z = x + y;
string a = z.ToString();
board[Switch.line, Switch.column].Text = a;
board[Switch.line, Switch.column].Visible = true;
board[i, j].Visible = false;
board[i, j].Text = "0";
}
}
和SwitchKey类：
class SwitchKey
{
public int line;
public int column;
public SwitchKey(int i, int j, System.Windows.Forms.KeyEventArgs e)
{
#region Keycode switch
switch (e.KeyCode)
{
case (System.Windows.Forms.Keys.Left):
{
column = j-1;
line = i;
break;
}
case (System.Windows.Forms.Keys.Right):
{
column = j + 1;
line = i;
break;
}
case (System.Windows.Forms.Keys.Up):
{
column = j;
line = i-1;
break;
}
case (System.Windows.Forms.Keys.Down):
{
column = j;
line = i+1;
break;
}
}
#endregion
}
}
当我使用左右键时游戏效果很好但在上下使用时没有做任何事情。我做错了什么？
答案 0 :(得分：1)
看来你需要一个近距离支撑
....
else if (e.KeyCode == Keys.Right)
{
checkIfMoved = false;
.... a lot of code
if (checkIfMoved == true)
{
GenerateField();
}
}// <-- here
else if (e.KeyCode == Keys.Up)
{
...
答案 1 :(得分：0)
你错位了}
你的
else if (e.KeyCode == Keys.Up)
{
嵌套在
中 else if (e.KeyCode == Keys.Right)
{
试试这个：
bool checkIfMoved;
private void Form1_KeyDown(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.Left)
{
checkIfMoved = false;
for (int i = 0; i <= 3; i++)
{
for (int j = 0; j <= 3; j++)
{
if ((j != 0) && (board[i, j].Visible == true) && (board[i, j - 1].Visible == false))
{
moveButton(i, j, e);
}
else if ((j != 0) && (board[i, j].Visible == true) && (board[i, j - 1].Visible == true))
{
sumButtons(i, j, e);
}
}
}
if (checkIfMoved == true)
{
GenerateField();
}
}
else if (e.KeyCode == Keys.Right)
{
checkIfMoved = false;
for (int i = 3; i >= 0; i--)
{
for (int j = 3; j >= 0; j--)
{
if ((j != 3) && (board[i, j].Visible == true) && (board[i, j + 1].Visible == false))
{
moveButton(i, j, e);
}
else if ((j != 3) && (board[i, j].Visible == true) && (board[i, j + 1].Visible == true))
{
sumButtons(i, j, e);
}
}
}
if (checkIfMoved == true)
{
GenerateField();
}
}
else if (e.KeyCode == Keys.Up)
{
checkIfMoved = false;
for (int i = 0; i <= 3; i++)
{
for (int j = 3; j >= 0; j--)
{
if ((i != 0) && (board[i, j].Visible == true) && (board[i - 1, j].Visible == false))
{
moveButton(i, j, e);
}
else if ((i != 0) && (board[i, j].Visible == true) && (board[i - 1, j].Visible == true))
{
sumButtons(i, j, e);
}
}
if (checkIfMoved == true)
{
GenerateField();
}
}
}
else if (e.KeyCode == Keys.Down)
{
checkIfMoved = false;
for (int i = 3; i >= 0; i--)
{
for (int j = 0; j <= 3; j++)
{
if ((i != 3) && (board[i, j].Visible == true) && (board[i + 1, j].Visible == false))
{
moveButton(i, j, e);
}
else if ((i != 3) && (board[i, j].Visible == true) && (board[i + 1, j].Visible == true))
{
sumButtons(i, j, e);
}
}
}
if (checkIfMoved == true)
{
GenerateField();
}
}
}