对我来说，这个错误是破坏游戏的，我正在使用四个不同的列表来控制从许多发射器中射出的火箭。发射器也列在一个列表中：
Launchers = new List<Launcher>();
RocketsUp = new List<Rectangle>();
RocketsDown = new List<Rectangle>();
RocketsLeft = new List<Rectangle>();
RocketsRight = new List<Rectangle>();
如果您只想查看完整内容，这里是项目。（请理解这是一团糟，我正在努力让它发挥作用，如果我有更多的时间然后 3 到 4 周来完成这个，我会尝试让它更干净）
问题
火箭队会射门，但右边的火箭队会随机停顿，上下左右都正常，怎么办？
如果我让游戏玩一点，它会在一段时间后开始放慢速度，我原以为我必须在游戏中发射许多火箭，但它们正在发射并被摧毁，所以游戏不应该正常运行，因为火箭正在清除的速度与产生的速度一样快吗？
结束问题
注意：（我有多个级别，当我跳到下一个级别时，滞后消失了，因为我在一个方法中有一个明确的全部）：
Launchers.Clear();
RocketsUp.Clear();
RocketsDown.Clear();
RocketsRight.Clear();
RocketsLeft.Clear();
这些发射器将做的是每隔设定的秒数在一条直线上发射一个射弹，直到它们接触到一个方块或玩家。
我有一个 foreach 循环遍历每个发射器位置，并根据发射器面向的方向生成火箭，1 = 上，2 = 下，3 = 右，4 = 左：
foreach (Launcher l in Launchers)
{
l.Updata(gameTime);
if (rocketTime > rocketMax)
{
if (l.Direction == 1)
RocketsUp.Add(new Rectangle((int)l.Position.X + 11, (int)l.Position.Y, 9, 18));
if (l.Direction == 2)
RocketsDown.Add(new Rectangle((int)l.Position.X + 11, (int)l.Position.Y, 9, 18));
if (l.Direction == 3)
RocketsRight.Add(new Rectangle((int)l.Position.X, (int)l.Position.Y + 11, 18, 9));
if (l.Direction == 4)
RocketsLeft.Add(new Rectangle((int)l.Position.X, (int)l.Position.Y + 11, 18, 9));
}
}
然后为每个火箭列表调用一个 for 循环并定义它们的大小，因为纹理不是正确的大小：
if (rocketTime > rocketMax)
rocketTime = 0;
for (int i = 0; i < RocketsUp.Count; i++)
{
RocketsUp[i] = new Rectangle(RocketsUp[i].X, RocketsUp[i].Y - 3, RocketsUp[i].Width, RocketsUp[i].Height);
}
for (int i = 0; i < RocketsDown.Count; i++)
{
RocketsDown[i] = new Rectangle(RocketsDown[i].X, RocketsDown[i].Y + 3, RocketsDown[i].Width, RocketsDown[i].Height);
}
for (int i = 0; i < RocketsLeft.Count; i++)
{
RocketsRight[i] = new Rectangle(RocketsRight[i].X + 3, RocketsRight[i].Y, RocketsRight[i].Width, RocketsRight[i].Height);
}
for (int i = 0; i < RocketsLeft.Count; i++)
{
RocketsLeft[i] = new Rectangle(RocketsLeft[i].X - 3, RocketsLeft[i].Y, RocketsLeft[i].Width, RocketsLeft[i].Height);
}
然后在 Draw 方法中绘制火箭：
for (int i = 0; i < RocketsUp.Count; i++)
{
spriteBatch.Draw(rocketUp, new Rectangle(RocketsUp[i].X,
RocketsUp[i].Y,
RocketsUp[i].Width,
RocketsUp[i].Height),
Color.White);
}
for (int i = 0; i < RocketsDown.Count; i++)
{
spriteBatch.Draw(rocketDown, new Rectangle(RocketsDown[i].X,
RocketsDown[i].Y,
RocketsDown[i].Width,
RocketsDown[i].Height),
Color.White);
}
for (int i = 0; i < RocketsRight.Count; i++)
{
spriteBatch.Draw(rocketRight, new Rectangle(RocketsRight[i].X, RocketsRight[i].Y, RocketsRight[i].Width, RocketsRight[i].Height), Color.White);
}
for (int i = 0; i < RocketsLeft.Count; i++)
{
spriteBatch.Draw(rocketLeft, new Rectangle(RocketsLeft[i].X, RocketsLeft[i].Y, RocketsLeft[i].Width, RocketsLeft[i].Height), Color.White);
}
最后，火箭在另一个名为 Block 的类中被调用：
public Player BlockCollision(Player player, GameTime gameTime, Game1 game1)
{
this.game1 = game1;
kbState = Keyboard.GetState();
Rectangle BlockRectangle = new Rectangle((int)Position.X, (int)Position.Y, Texture.Width, Texture.Height);
Rectangle top = new Rectangle((int)Position.X + 5, (int)Position.Y - 10, Texture.Width - 10, 10);
Rectangle bottom = new Rectangle((int)Position.X + 5, (int)Position.Y + Texture.Height, Texture.Width - 10, 10);
Rectangle left = new Rectangle((int)Position.X - 10, (int)Position.Y + 5, 10, Texture.Height - 10);
Rectangle right = new Rectangle((int)Position.X + Texture.Width, (int)Position.Y + 5, 10, Texture.Height - 10);
Rectangle personRectangle = new Rectangle((int)player.Position.X, (int)player.Position.Y, player.Texture.Width, player.Texture.Height);
for (int i = 0; i < game1.RocketsDown.Count; i++)
{
Vector2 Rocket = new Vector2(game1.RocketsDown[i].X, game1.RocketsDown[i].Y);
if (personRectangle.Intersects(new Rectangle((int)Rocket.X, (int)Rocket.Y, game1.rocketDown.Width, game1.rocketDown.Height)))
{
player.Dead = true;
}
}
for (int i = 0; i < game1.RocketsUp.Count; i++)
{
Vector2 Rocket = new Vector2(game1.RocketsUp[i].X, game1.RocketsUp[i].Y);
if (personRectangle.Intersects(new Rectangle((int)Rocket.X, (int)Rocket.Y, game1.rocketUp.Width, game1.rocketUp.Height)))
{
player.Dead = true;
}
}
for (int i = 0; i < game1.RocketsLeft.Count; i++)
{
Vector2 Rocket = new Vector2(game1.RocketsLeft[i].X, game1.RocketsLeft[i].Y);
if (personRectangle.Intersects(new Rectangle((int)Rocket.X, (int)Rocket.Y, game1.rocketLeft.Width, game1.rocketLeft.Height)))
{
player.Dead = true;
}
}
for (int i = 0; i < game1.RocketsRight.Count; i++)
{
Vector2 Rocket = new Vector2(game1.RocketsRight[i].X, game1.RocketsRight[i].Y);
if (personRectangle.Intersects(new Rectangle((int)Rocket.X, (int)Rocket.Y, game1.rocketRight.Width, game1.rocketRight.Height)))
{
player.Dead = true;
}
}
if (BlockState > 0)
{
for (int i = 0; i < game1.RocketsDown.Count; i++)
{
Vector2 Rocket = new Vector2(game1.RocketsDown[i].X, game1.RocketsDown[i].Y);
if (top.Intersects(new Rectangle((int)Rocket.X, (int)Rocket.Y, game1.rocketDown.Width, game1.rocketDown.Height)))
{
game1.RocketsDown.RemoveAt(i);
}
}
for (int i = 0; i < game1.RocketsUp.Count; i++)
{
Vector2 Rocket = new Vector2(game1.RocketsUp[i].X, game1.RocketsUp[i].Y);
if (bottom.Intersects(new Rectangle((int)Rocket.X, (int)Rocket.Y, game1.rocketUp.Width, game1.rocketUp.Height)))
{
game1.RocketsUp.RemoveAt(i);
}
}
for (int i = 0; i < game1.RocketsLeft.Count; i++)
{
Vector2 Rocket = new Vector2(game1.RocketsLeft[i].X, game1.RocketsLeft[i].Y);
if (right.Intersects(new Rectangle((int)Rocket.X, (int)Rocket.Y, game1.rocketLeft.Width, game1.rocketLeft.Height)))
{
game1.RocketsLeft.RemoveAt(i);
}
}
for (int i = 0; i < game1.RocketsRight.Count; i++)
{
Vector2 Rocket = new Vector2(game1.RocketsRight[i].X, game1.RocketsRight[i].Y);
if (left.Intersects(new Rectangle((int)Rocket.X, (int)Rocket.Y, game1.rocketRight.Width, game1.rocketRight.Height)))
{
game1.RocketsRight.RemoveAt(i);
}
}
}