bool deform()
{
int [,] ns = curRock.shape.Clone() as int[, ];
int t;
for (int i = 0; i != ns.GetLength(0); ++i)
{
//rotate 90 degrees
t = ns[i, 0];
ns[i, 0] = -ns[i, 1];
ns[i, 1] = t;
}
for (int i = 0; i != ns.GetLength(0); ++i)
{
int ny = curRock.originY + ns[i, 1];
int?v = field.checkValid(curRock.originX + ns[i, 0], ny);
if (v != (int)FieldType.Empty && ny < field_row)
{
return(false);
}
}
curRock.shape = ns;
moveRockTo(curRock, curRock.originX, curRock.originY);
return(true);
}
GameState ClimbSnake()
{
timeline += Time.deltaTime;
if (timeline > time_interval)
{
timeline -= time_interval;
int nx = 0, ny = 0;
switch (snake.ori)
{
case SnakeStruct.Orientaion.Up: ny = 1; break;
case SnakeStruct.Orientaion.Down: ny = -1; break;
case SnakeStruct.Orientaion.Left: nx = -1; break;
case SnakeStruct.Orientaion.Right: nx = 1; break;
}
nx += snake.posX[snake.head];
ny += snake.posY[snake.head];
int?v = field.checkValid(nx, ny);
//Debug.LogFormat("npos = {{{0}, {1}}}", nx, ny);
if ((int)FieldType.Snake == v || null == v)
{
return(GameState.Fail);
}
else if ((int)FieldType.Empty == v)
{
int ot = snake.tail;
int nh = (snake.head + 1) % snake.icons.Length;
snake.icons[snake.head].GetComponent <SpriteRenderer>().color = Color.white;
snake.icons[nh] = snake.icons[ot];
snake.icons[ot] = null;
snake.icons[nh].transform.position = field.calcPos(nx, ny);
snake.icons[nh].GetComponent <SpriteRenderer>().color = head_color;
snake.head = nh;
snake.tail = (snake.tail + 1) % snake.icons.Length;
snake.posX[nh] = nx;
snake.posY[nh] = ny;
field.moveGrid(snake.posX[ot], snake.posY[ot], nx, ny, (int)FieldType.Empty);
}
else if ((int)FieldType.Food == v)
{
int maxlen = snake.icons.Length;
int nh = (snake.head + 1) % maxlen;
snake.icons[snake.head].GetComponent <SpriteRenderer>().color = Color.white;
snake.icons[nh] = Instantiate(block_prefab, field.calcPos(nx, ny), Quaternion.identity, this.transform);
snake.icons[nh].GetComponent <SpriteRenderer>().color = head_color;
snake.posX[nh] = nx;
snake.posY[nh] = ny;
snake.head = nh;
field[nx, ny] = (int)FieldType.Snake;
if (snake.tail == (nh + 1) % maxlen)
{
return(GameState.Win);
}
int snakelen = (nh + maxlen - snake.tail + 1) % maxlen;
int availspace = snake.icons.Length - snakelen;
moveFood(availspace);
}
}
return(GameState.Loop);
}