/// <summary>
/// Zombies move in a random direction. Since there's only one on
/// the screen, we just track it using the PictureBox variable
/// instead of a list. Obviously if you had multiple zombies, you'd
/// probably want to use a list to make things MUCH easier.
/// </summary>
void MoveZombie()
{
for (int i = 0; i < sentinelPBList.Count; i++)
{
PictureBox enemy = sentinelPBList[i];
// Skip if invisible (must be dead)
if (enemy.Visible == false)
{
return;
}
// Zombies change direction completely randomly and stay moving
// in the new direction for 10 to 20 steps (frames).
enemyStepsRemaining--;
if (enemyStepsRemaining < 0)
{
enemyDirection = rand.Next(0, 10);
enemyStepsRemaining = rand.Next(15, 39);
}
switch (enemyDirection)
{
case 0: //up
enemy.Top -= enemySpeed;
if (enemy.IsInsideOfForm() == false)
{
enemy.Top += enemySpeed;
}
break;
case 1: // right
enemy.Left += enemySpeed;
if (enemy.IsInsideOfForm() == false)
{
enemy.Left -= enemySpeed;
}
break;
case 2: // down
enemy.Top += enemySpeed;
if (enemy.IsInsideOfForm() == false)
{
enemy.Top -= enemySpeed;
}
break;
case 3: // left
enemy.Left -= enemySpeed;
if (enemy.IsInsideOfForm() == false)
{
enemy.Left += enemySpeed;
}
break;
}
}
}
private void TrackBadBullets()
{
for (int i = 0; i < badBulletList.Count; i++)
{
PictureBox badbullet = badBulletList[i];
badbullet.Left -= badBulletSpeed;
// Remove the bullet if it leaves the screen
if (badbullet.IsInsideOfForm() == false)
{
// remove it from both the List and from the Window's
// Controls collection.
badBulletList.Remove(badbullet);
this.Controls.Remove(badbullet);
}
// Kill THE good guy if the bullet hits him
if (pictureBoxPlayer.IsTouching(badbullet))
{
Death();
Close();
}
}
}
private bool CanMove(PictureBox pb)
{
if (pb.IsInsideOfForm() == false)
{
return(false);
}
return(true);
}
private void TrackBullets()
{
for (int i = 0; i < bulletList.Count; i++)
{
PictureBox bullet = bulletList[i];
bullet.Left += bulletSpeed;
// Remove the bullet if it leaves the screen
if (bullet.IsInsideOfForm() == false)
{
// remove it from both the List and from the Window's
// Controls collection.
bulletList.Remove(bullet);
this.Controls.Remove(bullet);
}
// Kill a bad guy if the bullet hits him
for (int j = 0; j < allBadGuys.Count; j++)
{
PictureBox badGuy = allBadGuys[j];
// Skip if invisible (already dead)
if (badGuy.Visible == false)
{
continue;
}
if (badGuy.IsTouching(bullet))
{
// remove the bullet from both the List and from the
// Window's Controls collection.
bulletList.Remove(bullet);
this.Controls.Remove(bullet);
this.Controls.Remove(badGuy);
// "Kill" the bad guy
badGuy.Visible = false;
// Add to list of dead bad guys and check for win
deadBadGuys.Add(badGuy);
break;
}
}
}
}
private bool CanMove(PictureBox pb)
{
if (pb.IsInsideOfForm() == false)
{
return(false);
}
foreach (var trees in trees)
{
if (pb.IsTouching(trees) == true)
{
return(false);
}
}
return(true);
}
private void HandleDragonMove()
{
for (int i = 0; i < sentinelPBList.Count; i++)
{
PictureBox sentinel = sentinelPBList[i];
int direction = sentinelDirList[i];
// Skip if invisible (must be dead)
if (sentinel.Visible == false)
{
continue;
}
if (direction == 0)
{
// up
sentinel.Top -= sentinelSpeed;
}
else
{
// down
sentinel.Top += sentinelSpeed;
}
if (sentinel.IsInsideOfForm() == false)
{
if (direction == 1)
{
sentinelDirList[i] = 0;
}
else
{
sentinelDirList[i] = 1;
}
}
}
}