/// <summary>
/// 判断是否失败
/// </summary>
/// <returns>是否失败</returns>
private bool IsLose()
{
ControlHost host = Native.Host;
SnakeBody body = m_bodys[0];
//蛇头是否撞墙
if (body.Left < 0 || body.Right > Width || body.Top < 0 || body.Bottom > Width)
{
return(true);
}
//蛇关节间是否碰撞
int bodySize = m_bodys.Count;
for (int i = 0; i < bodySize; i++)
{
for (int j = i + 1; j < bodySize - i - 1; j++)
{
RECT tempRect = new RECT();
RECT iRect = m_bodys[i].Bounds;
RECT jRect = m_bodys[j].Bounds;
if (host.GetIntersectRect(ref tempRect, ref iRect, ref jRect) > 0)
{
return(true);
}
}
}
return(false);
}
/// <summary>
/// 添加食物
/// </summary>
private void AddFood()
{
Food food = new Food();
food.Size = new SIZE(SNAKE_SIZE, SNAKE_SIZE);
ControlHost host = Native.Host;
while (true)
{
//获取随机数
int num = m_random.Next(0, Width / SNAKE_SIZE - 1);
int num2 = m_random.Next(0, Height / SNAKE_SIZE - 1);
//设置位置
food.Location = new POINT(num * SNAKE_SIZE, num2 * SNAKE_SIZE);
bool reset = false;
RECT fRect = food.Bounds;
int bodySize = m_bodys.Count;
for (int j = 0; j < bodySize; j++)
{
//如果与关节重合，需要重新设置位置
RECT tempRect = new RECT();
RECT bRect = m_bodys[j].Bounds;
if (host.GetIntersectRect(ref tempRect, ref bRect, ref fRect) > 0)
{
reset = true;
}
}
int foodSize = m_foods.Count;
for (int j = 0; j < foodSize; j++)
{
RECT fiRect = m_foods[j].Bounds;
RECT tempRect = new RECT();
//如果与食物重合，需要重新设置位置
if (host.GetIntersectRect(ref tempRect, ref fiRect, ref fRect) > 0)
{
reset = true;
}
}
if (!reset)
{
break;
}
}
AddControl(food);
m_foods.Add(food);
food.BringToFront();
}
/// <summary>
/// 拖动中方法
/// </summary>
public override void OnDragging()
{
base.OnDragging();
ControlA parent = Parent;
ControlHost host = Native.Host;
RECT tempRect = new RECT();
RECT bounds = Bounds;
List <ControlA> controls = parent.m_controls;
int controlsSize = controls.Count;
int thisIndex = -1;
for (int i = 0; i < controlsSize; i++)
{
ControlA iControl = controls[i];
if (iControl == this)
{
thisIndex = i;
break;
}
}
int mx = bounds.left + (bounds.right - bounds.left) / 2;
int my = bounds.top + (bounds.bottom - bounds.top) / 2;
for (int i = 0; i < controlsSize; i++)
{
ControlA iCell = controls[i];
if (iCell != this && !(iCell is ScrollBarA))
{
RECT iBounds = iCell.Bounds;
if (host.GetIntersectRect(ref tempRect, ref bounds, ref iBounds) > 0)
{
if (mx >= iBounds.left && mx <= iBounds.right && my >= iBounds.top && my <= iBounds.bottom)
{
controls[thisIndex] = iCell;
controls[i] = this;
RECT oldBounds = iCell.Bounds;
iCell.Bounds = m_paintRect;
m_paintRect = oldBounds;
parent.Invalidate();
break;
}
}
}
}
}
/// <summary>
/// 单元格拖动方法
/// </summary>
/// <param name="cell">单元格</param>
public void OnCellDragging(UserSecurityCellT2 cell)
{
ControlHost host = Native.Host;
RECT tempRect = new RECT();
RECT bounds = cell.Bounds;
int cellsSize = m_cells.Count;
int thisIndex = -1;
for (int i = 0; i < cellsSize; i++)
{
UserSecurityCellT2 iCell = m_cells[i];
if (iCell == cell)
{
thisIndex = i;
break;
}
}
int mx = bounds.left + (bounds.right - bounds.left) / 2;
int my = bounds.top + (bounds.bottom - bounds.top) / 2;
for (int i = 0; i < cellsSize; i++)
{
UserSecurityCellT2 iCell = m_cells[i];
if (iCell != cell)
{
RECT iBounds = iCell.PaintRect;
if (host.GetIntersectRect(ref tempRect, ref bounds, ref iBounds) > 0)
{
if (mx >= iBounds.left && mx <= iBounds.right && my >= iBounds.top && my <= iBounds.bottom)
{
m_cells[thisIndex] = iCell;
m_cells[i] = cell;
Update();
break;
}
}
}
}
}
/// <summary>
/// 移动蛇
/// </summary>
private void MoveSnake()
{
ControlHost host = Native.Host;
int bodySize = m_bodys.Count;
SnakeBody lastBody = m_bodys[bodySize - 1];
int left = lastBody.Left;
int top = lastBody.Top;
//改变蛇身每个关节的位置
for (int i = 0; i < bodySize; i++)
{
SnakeBody body = m_bodys[i];
switch (body.Direction)
{
//向下
case SnakeDirection.Down:
body.Top += body.Height;
break;
//向左
case SnakeDirection.Left:
body.Left -= body.Width;
break;
//向右
case SnakeDirection.Right:
body.Left += body.Width;
break;
//向上
case SnakeDirection.Up:
body.Top -= body.Height;
break;
}
}
//判断游戏失败
if (IsLose())
{
m_play.GameState = GameState.Lose;
m_play.BringToFront();
}
else
{
bool newFood = false;
//判断吃食物
int foodSize = m_foods.Count;
for (int i = 0; i < foodSize; i++)
{
Food food = m_foods[i];
RECT tempRect = new RECT();
RECT bRect = m_bodys[0].Bounds;
RECT fRect = food.Bounds;
if (host.GetIntersectRect(ref tempRect, ref bRect, ref fRect) > 0)
{
m_eatCount++;
//添加关节
RECT rc = new RECT(left, top, left + SNAKE_SIZE, top + SNAKE_SIZE);
SnakeBody body = new SnakeBody(rc);
m_bodys.Add(body);
AddControl(body);
body.BringToFront();
//移除食物
RemoveControl(food);
m_foods.Remove(food);
newFood = true;
break;
}
}
//改变移动方向
bodySize = m_bodys.Count;
for (int i = bodySize - 1; i > 0; i--)
{
m_bodys[i].Direction = m_bodys[i - 1].Direction;
}
//设置新的食物
if (newFood)
{
AddFood();
}
}
Invalidate();
}