/*键盘操作*/
private void Form1_KeyDown(object sender, KeyEventArgs e)
{
if (currentBlock == null)
{
switch (e.KeyCode)
{
case Keys.Right: beginGame();; break;
case Keys.Left: beginGame();; break;
case Keys.Up: beginGame();; break;
case Keys.Down: beginGame();; break;
case Keys.Enter:
beginGame();
break;
}
picBackGround.Focus();
}
if (!timer1.Enabled && currentBlock != null && currentBlock.Top() != 0)
{
switch (e.KeyCode)
{
case Keys.Enter: //回车继续游戏
beginGame();
break;
}
picBackGround.Focus();
}
if (currentBlock != null && timer1.Enabled && currentBlock.Top() != 0)
{
switch (e.KeyCode)
{
case Keys.Right: if (!currentBlock.right())
{
GameField.PlaySound("CanNotDo");
}
break; //向右移动
case Keys.Left: if (!currentBlock.left())
{
GameField.PlaySound("CanNotDo");
}
break; //向左移动
case Keys.Up: currentBlock.Rotate(); break; //旋转
case Keys.Down: currentBlock.down(); break; //向下加速
case Keys.Space: while (currentBlock.down())
{
;
}
break;
case Keys.Back: //空格：暂停
timer1.Enabled = !timer1.Enabled;
if (!timer1.Enabled)
{
showMsg("暂 停");
}
else
{
msg.SendToBack();
}
break;
case Keys.Enter: //回车继续游戏
beginGame();
break;
}
picBackGround.Focus();
}
}
/*窗口重绘*/
private void Form1_Activated(object sender, EventArgs e)
{
picBackGround.Invalidate();
Application.DoEvents();
GameField.Redraw();
}
/*旋转block*/
public void Rotate()
{
//保存每个小块的位置
Point oldPosition1 = square1.location;
Point oldPosition2 = square2.location;
Point oldPosition3 = square3.location;
Point oldPosition4 = square4.location;
//保存当前的方向
RotateDirections oldRotation = myRotation;
//开始试着旋转方块，旋转方向：顺时针方向 旋转中心点为形状拐点
Erase(GameField.winHandle);
switch (blockType)
{
case BlockTypes.square:
break;
case BlockTypes.line:
//直线的旋转只有两种方向
switch (myRotation)
{
case RotateDirections.North:
myRotation = RotateDirections.East;
square1.location = new Point(square2.location.X - squareSize, square2.location.Y);
square3.location = new Point(square2.location.X + squareSize, square2.location.Y);
square4.location = new Point(square2.location.X + 2 * squareSize, square2.location.Y);
break;
case RotateDirections.East:
myRotation = RotateDirections.North;
square1.location = new Point(square2.location.X, square2.location.Y - squareSize);
square3.location = new Point(square2.location.X, square2.location.Y + squareSize);
square4.location = new Point(square2.location.X, square2.location.Y + 2 * squareSize);
break;
}
break;
case BlockTypes.J:
//J形方块有四种旋转方向
switch (myRotation)
{
case RotateDirections.North:
myRotation = RotateDirections.East;
square1.location = new Point(square3.location.X + 2 * squareSize, square3.location.Y);
square2.location = new Point(square3.location.X + squareSize, square3.location.Y);
square4.location = new Point(square3.location.X, square3.location.Y - squareSize);
break;
case RotateDirections.East:
myRotation = RotateDirections.South;
square1.location = new Point(square3.location.X, square3.location.Y + 2 * squareSize);
square2.location = new Point(square3.location.X, square3.location.Y + squareSize);
square4.location = new Point(square3.location.X + squareSize, square3.location.Y);
break;
case RotateDirections.South:
myRotation = RotateDirections.West;
square1.location = new Point(square3.location.X - 2 * squareSize, square3.location.Y);
square2.location = new Point(square3.location.X - squareSize, square3.location.Y);
square4.location = new Point(square3.location.X, square3.location.Y + squareSize);
break;
case RotateDirections.West:
myRotation = RotateDirections.North;
square1.location = new Point(square3.location.X, square3.location.Y - 2 * squareSize);
square2.location = new Point(square3.location.X, square3.location.Y - squareSize);
square4.location = new Point(square3.location.X - squareSize, square3.location.Y);
break;
}
break;
case BlockTypes.L:
//L形方块有四种旋转方向
switch (myRotation)
{
case RotateDirections.North:
myRotation = RotateDirections.East;
square1.location = new Point(square3.location.X + 2 * squareSize, square3.location.Y);
square2.location = new Point(square3.location.X + squareSize, square3.location.Y);
square4.location = new Point(square3.location.X, square3.location.Y + squareSize);
break;
case RotateDirections.East:
myRotation = RotateDirections.South;
square1.location = new Point(square3.location.X, square3.location.Y + 2 * squareSize);
square2.location = new Point(square3.location.X, square3.location.Y + squareSize);
square4.location = new Point(square3.location.X - squareSize, square3.location.Y);
break;
case RotateDirections.South:
myRotation = RotateDirections.West;
square1.location = new Point(square3.location.X - 2 * squareSize, square3.location.Y);
square2.location = new Point(square3.location.X - squareSize, square3.location.Y);
square4.location = new Point(square3.location.X, square3.location.Y - squareSize);
break;
case RotateDirections.West:
myRotation = RotateDirections.North;
square1.location = new Point(square3.location.X, square3.location.Y - 2 * squareSize);
square2.location = new Point(square3.location.X, square3.location.Y - squareSize);
square4.location = new Point(square3.location.X + squareSize, square3.location.Y);
break;
}
break;
case BlockTypes.T:
//T形方块也有四种旋转方向
switch (myRotation)
{
case RotateDirections.North:
myRotation = RotateDirections.East;
square1.location = new Point(square2.location.X, square2.location.Y - squareSize);
square3.location = new Point(square2.location.X, square2.location.Y + squareSize);
square4.location = new Point(square2.location.X - squareSize, square2.location.Y);
break;
case RotateDirections.East:
myRotation = RotateDirections.South;
square1.location = new Point(square2.location.X + squareSize, square2.location.Y);
square3.location = new Point(square2.location.X - squareSize, square2.location.Y);
square4.location = new Point(square2.location.X, square2.location.Y - squareSize);
break;
case RotateDirections.South:
myRotation = RotateDirections.West;
square1.location = new Point(square2.location.X, square2.location.Y + squareSize);
square3.location = new Point(square2.location.X, square2.location.Y - squareSize);
square4.location = new Point(square2.location.X + squareSize, square2.location.Y);
break;
case RotateDirections.West:
myRotation = RotateDirections.North;
square1.location = new Point(square2.location.X - squareSize, square2.location.Y);
square3.location = new Point(square2.location.X + squareSize, square2.location.Y);
square4.location = new Point(square2.location.X, square2.location.Y + squareSize);
break;
}
break;
case BlockTypes.Z:
//Z形方块有两种旋转方向
switch (myRotation)
{
case RotateDirections.North:
myRotation = RotateDirections.East;
square1.location = new Point(square2.location.X, square2.location.Y - squareSize);
square3.location = new Point(square2.location.X - squareSize, square2.location.Y);
square4.location = new Point(square2.location.X - squareSize, square2.location.Y + squareSize);
break;
case RotateDirections.East:
myRotation = RotateDirections.North;
square1.location = new Point(square2.location.X - squareSize, square2.location.Y);
square3.location = new Point(square2.location.X, square2.location.Y + squareSize);
square4.location = new Point(square2.location.X + squareSize, square2.location.Y + squareSize);
break;
}
break;
case BlockTypes.S:
//S形方块有两种旋转方向
switch (myRotation)
{
case RotateDirections.North:
myRotation = RotateDirections.East;
square1.location = new Point(square3.location.X + squareSize, square3.location.Y + squareSize);
square2.location = new Point(square3.location.X + squareSize, square3.location.Y);
square4.location = new Point(square3.location.X, square3.location.Y - squareSize);
break;
case RotateDirections.East:
myRotation = RotateDirections.North;
square1.location = new Point(square3.location.X - squareSize, square3.location.Y + squareSize);
square2.location = new Point(square3.location.X, square3.location.Y + squareSize);
square4.location = new Point(square3.location.X + squareSize, square3.location.Y);
break;
}
break;
}
//旋转之后检测位置是否冲突
if (!(GameField.isEmpty(square1.location.X / squareSize, square1.location.Y / squareSize) &&
GameField.isEmpty(square2.location.X / squareSize, square2.location.Y / squareSize) &&
GameField.isEmpty(square3.location.X / squareSize, square3.location.Y / squareSize) &&
GameField.isEmpty(square4.location.X / squareSize, square4.location.Y / squareSize)))
{//如果有冲突则回到原来的状态
myRotation = oldRotation;
square1.location = oldPosition1;
square2.location = oldPosition2;
square3.location = oldPosition3;
square4.location = oldPosition4;
}
Draw(GameField.winHandle);
}
