public bool CheckLeft()
{
int summand = 1;
for (int x = 0; x < TetroField.GetUpperBound(1); x++)
{
for (int y = 0; y < TetroField.GetUpperBound(0); y++)
{
if (x + this.X <= 0)
{
if (tetroField[y, x] != -1)
{
return(false);
}
}
if (tetroField[y, x] != -1)
{
if (x == 0)
{
summand = 0;
}
if (gameField[this.Y + y, this.X + x - 1] != -1 && (summand == 0 || tetroField[y, x - summand] == -1))
{
return(false);
}
}
summand = 1;
}
}
return(true);
}
public bool CheckRight()
{
int summand = 1;
for (int x = 0; x < TetroField.GetUpperBound(1) + 1; x++)
{
for (int y = 0; y < TetroField.GetUpperBound(0) + 1; y++)
{
if (x + this.X >= gameField.GetUpperBound(1))
{
if (tetroField[y, x] != -1)
{
return(false);
}
}
if (tetroField[y, x] != -1)
{
if (x == TetroField.GetUpperBound(0))
{
summand = 0;
}
if (gameField[this.Y + y, this.X + x + 1] != -1 && (summand == 0 || tetroField[y, x + summand] == -1))
{
return(false);
}
}
summand = 1;
}
}
return(true);
}
public bool KickDown()
{
int summand = 1;
Clear();
do
{
for (int y = 0; y < TetroField.GetUpperBound(1) + 1; y++)
{
for (int x = 0; x < TetroField.GetUpperBound(0) + 1; x++)
{
if (tetroField[y, x] != -1)
{
if (y == TetroField.GetUpperBound(1))
{
summand = 0;
}
if (gameField[this.Y + y + 1, this.X + x] != -1 && (summand == 0 || tetroField[y + summand, x] == -1))
{
Fill();
return(false);
}
}
}
}
this.Y++;
}while (true);
}
private void Clear()
{
for (int y = 0; y < TetroField.GetUpperBound(0) + 1; y++)
{
for (int x = 0; x < TetroField.GetUpperBound(1) + 1; x++)
{
if (this.tetroField[y, x] != -1)
{
gameField[Math.Abs(y + this.Y), Math.Abs(x + this.X)] = -1;
}
}
}
}
public void Rotate()
{
if (this.Type != TetroType.O)
{
int center = 2;
if (this.type == TetroType.I)
{
center = 3;
}
sbyte[,] temp = new sbyte[TetroField.GetUpperBound(0) + 1, TetroField.GetUpperBound(0) + 1];
for (int y = 0; y < TetroField.GetUpperBound(0) + 1; y++)
{
for (int x = 0; x < TetroField.GetUpperBound(1) + 1; x++)
{
if (-y + center >= 0)
{
temp[-y + center, x] = TetroField[x, y];
}
}
}
for (int y = 0; y < TetroField.GetUpperBound(0) + 1; y++)
{
for (int x = 0; x < TetroField.GetUpperBound(1) + 1; x++)
{
if (temp[y, x] != -1)
{
if (this.X < 0)
{
if (CheckRight())
{
MoveRight();
}
else
{
return;
}
}
else if (this.X + this.tetroField.GetUpperBound(1) + 1 > gameField.GetUpperBound(1) + 1)
{
if (CheckLeft())
{
MoveLeft();
}
else
{
return;
}
}
}
}
}
Clear();
TetroField = temp;
Fill();
}
}