/// <summary>
/// Check whether current shape can move to speicified direction
/// </summary>
/// <param name="theDirection">the specified direct</param>
/// <returns>ture if can, otherwise false</returns>
protected bool CanMove(EnumMoving theDirection)
{
if (null == m_curShape)
return false;
Block[] blocks = m_curShape.Blocks;
if (null == blocks)
return false;
switch (theDirection) {
case EnumMoving.Left:
for (int i = 0; i < blocks.Length; i++) {
if (EnumBlockType.Blank != m_Cells[blocks[i].Y, blocks[i].X - 1].Type)
return false;
}
break;
case EnumMoving.Right:
for (int i = 0; i < blocks.Length; i++) {
if (EnumBlockType.Blank != m_Cells[blocks[i].Y, blocks[i].X + 1].Type)
return false;
}
break;
case EnumMoving.Down:
for (int i = 0; i < blocks.Length; i++) {
if (EnumBlockType.Blank != m_Cells[blocks[i].Y + 1, blocks[i].X].Type)
return false;
}
break;
case EnumMoving.Rotate:
return CanRotate();
default:
break;
}
return true;
}
public ShapeMovingEventArgs(EnumMoving direction)
{
m_Direction = direction;
}
/// <summary>
/// move current shape.
/// </summary>
/// <param name="theDirection">the moving direction</param>
public bool MoveCurShape(EnumMoving theDirection)
{
if (this.Status != EnumGameStatus.Running)
return false;
if (EnumMoving.DirectDown == theDirection) {
while (this.MoveCurShape(EnumMoving.Down)) {
}
return true;
}
if (this.CanMove(theDirection)) {
m_curShape.Move(theDirection);
} else if (EnumMoving.Down == theDirection) {
// can not be moving down
if (null != m_curShape) {
DestroyCurShape();
CheckLines();
//if (null != this.NextShapeRequested)
// this.NextShapeRequested(this, new EventArgs());
}
if (Defeated()) {
this.Status = EnumGameStatus.Defeated;
RePaint();
} else
CreateNextShape();
return false;
}
return true;
}
