/// <summary>
/// おじゃまを相手のフィールドに送る
/// </summary>
/// <param name="ojamas">送るおじゃまの量と種類</param>
private void ThrowOjama(OjamaCalculator ojamas)
{
var n = ojamas.Calculate();
for (var i = 0; i < n; ++i)
{
var ojama = new OjamaBall(SpriteBatch, Camera, GameMain, this)
{
IsHard = ojamas.IsHard(),
Size = BallSize
};
OtherField.EnqueueOjama(ojama);
}
}
/// <summary>
/// 指定した座標の玉を消す。
/// </summary>
/// <param name="point">消す玉の座標</param>
/// <returns>送られるおじゃまの数 ただし消せない時はnull</returns>
private OjamaCalculator DestroyBalls(Point point)
{
var targetBall = GetBall(point.X, point.Y);
if (targetBall is OjamaBall)
{
return(null);
}
var color = targetBall.Color;
OjamaCalculator result;
int[] dx = { -1, 0, 1, 0 };
int[] dy = { 0, -1, 0, 1 };
var destroyed = new List <Point> {
point
};
var visit = new bool[Column + 1, Row + 1];
var queue = new Queue <Point>();
queue.Enqueue(point);
while (0 < queue.Count)
{
var p = queue.Dequeue();
visit[p.X, p.Y] = true;
for (var i = 0; i < 4; ++i)
{
var tx = p.X + dx[i];
var ty = p.Y + dy[i];
if (!IsInFieldRange(tx, ty) || visit[tx, ty])
{
continue;
}
var ball = GetBall(tx, ty);
if (ball.Color != color)
{
continue;
}
var tp = new Point(tx, ty);
destroyed.Add(tp);
queue.Enqueue(tp);
visit[tx, ty] = true;
}
}
if (destroyed.Count < GameConfig.MinChain)
{
return(null);
}
var sum = new int[Column + 1, Row + 2];
{
var destroyedOjama = new List <Point>();
var countLvDown = 0;
foreach (var p in destroyed)
{
for (var i = 0; i < 4; ++i)
{
var tx = p.X + dx[i];
var ty = p.Y + dy[i];
if (!IsInFieldRange(tx, ty))
{
continue;
}
var ball = GetBall(tx, ty);
if (!(ball is OjamaBall) || ball.IsDeath)
{
continue;
}
var ojama = ball as OjamaBall;
if (ojama.IsHard)
{
ojama.IsHard = false;
countLvDown++;
}
else
{
destroyedOjama.Add(new Point(tx, ty));
ball.IsDeath = true;
sum[tx, ty - 1]++;
}
}
GetBall(p.X, p.Y).IsDeath = true;
sum[p.X, p.Y - 1]++;
}
result = new OjamaCalculator(countLvDown, destroyedOjama.Count, destroyed.Count);
destroyed.AddRange(destroyedOjama);
}
if (!GameMain.EnableSkippingRender)
{
SpawnBallDestroyParticles(targetBall, destroyed);
}
for (var y = Row; 0 <= y; --y)
{
for (var x = 1; x <= Column; ++x)
{
sum[x, y] += sum[x, y + 1];
}
}
var topY = GetBall(1, 1).Y;
for (var x = 1; x <= Column; ++x)
{
if (sum[x, 0] == 0)
{
continue;
}
for (var y = Row; 1 <= y; --y)
{
var ball = GetBall(x, y);
if (ball.IsDeath)
{
continue;
}
ball.TargetY = GetBall(x, y + sum[x, y]).Y;
SetBall(x, y + sum[x, y], ball);
}
for (var y = 1; y <= sum[x, 0]; ++y)
{
var oldBall = GetBall(x, y);
var newY = -(sum[x, 0] - y + 1) * BallSize + topY;
if (_ojamaQueues[x].Count == 0)
{
SetBall(x, y, new Ball(SpriteBatch, Camera, GameMain, this)
{
X = oldBall.X,
Y = newY,
TargetY = oldBall.Y,
Size = BallSize,
Color = GetNextColor(x, y)
});
}
else
{
var ojama = _ojamaQueues[x].Dequeue();
ojama.X = oldBall.X;
ojama.Y = newY;
ojama.TargetY = oldBall.Y;
SetBall(x, y, ojama);
}
}
}
return(result);
}
