public override void RemoveChild(Sprite a_sp)
{
Invader inv = (Invader)a_sp;
if (this._invaders.Contains(inv))
{
this._invaders.Remove(inv);
//also remove from m_columnSortedInvaders:
for (int n = this._columnSortedInvaders.Count - 1; n >= 0; n--)
{
SortedList <int, Invader> slCol = this._columnSortedInvaders.Values[n];
int nIndex = slCol.IndexOfValue(inv);
if (nIndex >= 0)
{
slCol.RemoveAt(nIndex);
if (slCol.Count == 0)
{
this._columnSortedInvaders.RemoveAt(n);
}
break;
}
}
}
base.RemoveChild(a_sp);
}
public bool CheckCollision(Sprite sp)
{
for (int i = this._invaders.Count - 1; i >= 0; i--)
{
Invader inv = this._invaders[i];
if (inv.GetCollisionPoint(sp) != null)
{
inv.Explode();
return(true);
}
}
return(false);
}
public override void EnterFrame()
{
//Anyone to fire?
if (this._invaders.Count == 0)
{
return;
}
Random rnd = new Random();
if (rnd.Next(30) == 0) //yup, fire a shot!
{
Invader inv = null;
if (rnd.Next(4) == 0) //sometimes, let that someone be close to player to make it harder:
{
Invader invClosest = null;
float fXClosest = 9999;
for (int nColIndex = 0; nColIndex < this._columnSortedInvaders.Count; nColIndex++)
{
SortedList <int, Invader> slCol = this._columnSortedInvaders.Values[nColIndex];
inv = slCol.Values[slCol.Count - 1];
float fXDiff = Math.Abs(inv.LocX - GameMain.Instance.m_player.LocX);
if (fXDiff < fXClosest)
{
invClosest = inv;
fXClosest = fXDiff;
}
}
inv = invClosest;
}
else
{
SortedList <int, Invader> slCol = this._columnSortedInvaders.Values[rnd.Next(this._columnSortedInvaders.Count)];
inv = slCol.Values[slCol.Count - 1];
}
inv.Fire();
}
if (m_nNumWaitFrames-- > 0)
{
return;
}
this.Step();
}
public void Step()
{
if (this._invaders.Count == 0)
{
return;
}
//change direction?
bool bChange = false;
if (this.m_pntMovement.X < 0)
{
Invader inv = this._columnSortedInvaders.Values[0].Values[0];
if (inv.Loc.X < 135)
{
bChange = true;
}
}
else
{
Invader inv = this._columnSortedInvaders.Values[this._columnSortedInvaders.Count - 1].Values[0];
if (inv.Loc.X > 520)
{
bChange = true;
}
}
float fXTmp = this.m_pntMovement.X;
if (bChange)
{
fXTmp = -fXTmp;
this.m_pntMovement.X = 0;
this.m_pntMovement.Y = 32;
}
EPointF pntMove = new EPointF(-5, 0);
for (int n = this._invaders.Count - 1; n >= 0; n--)
{
this._invaders[n].Move(this.m_pntMovement);
}
this.m_pntMovement.X = fXTmp;
this.m_pntMovement.Y = 0;
this.m_nNumWaitFrames = (int)(0.8 * this._invaders.Count);
//this.m_nNumWaitFrames = 10;
}
// private Sound m_sndStep1;
// private Sound m_sndStep2;
public InvadersGrid()
{
this.SourceRect = new ERectangle(0, 0, 1, 1);
this._invaders = new List <Invader>();
int nColumns = 11;
int nRows = 5;
//nColumns = 0;
//nRows = 0;
this._columnSortedInvaders = new SortedList <int, SortedList <int, Invader> >();
for (int i = 0; i < nColumns; i++)
{
this._columnSortedInvaders.Add(i, new SortedList <int, Invader>());
}
for (int y = 0; y < nRows; y++)
{
string anim = "Invader03";
if (y >= 3)
{
anim = "Invader01";
}
else if (y >= 1)
{
anim = "Invader02";
}
for (int x = 0; x < nColumns; x++)
{
Invader invader = new Invader();
invader.SetGraphics(anim);
invader.Loc = new EPointF((x - 1) * 32, (y - 1) * 32) + new EPointF(185, 124);
invader.Parent = this;
this._invaders.Add(invader);
this._columnSortedInvaders[x].Add(y, invader);
}
}
this.m_pntMovement = new EPointF(4, 0);
}
// private Sound m_sndStep1;
// private Sound m_sndStep2;
public InvadersGrid()
{
this.SourceRect = new ERectangle(0,0,1,1);
this._invaders = new List<Invader>();
int nColumns = 11;
int nRows = 5;
//nColumns = 0;
//nRows = 0;
this._columnSortedInvaders = new SortedList<int, SortedList<int, Invader>>();
for (int i = 0; i < nColumns; i++)
this._columnSortedInvaders.Add(i, new SortedList<int, Invader>());
for (int y = 0; y < nRows; y++)
{
string anim = "Invader03";
if (y >= 3)
anim = "Invader01";
else if (y>=1)
anim = "Invader02";
for (int x = 0; x<nColumns; x++)
{
Invader invader = new Invader();
invader.SetGraphics(anim);
invader.Loc = new EPointF((x-1)*32,(y-1)*32) + new EPointF(185,124);
invader.Parent = this;
this._invaders.Add(invader);
this._columnSortedInvaders[x].Add(y, invader);
}
}
this.m_pntMovement = new EPointF(4,0);
}
