public IEnumerable <Invader> GenerateWave(GridDestination horizontal, GridDestination vertical, IEnumerable <Piece> pieces, GridCell[,] grid)
{
// create a list to store the invaders created
List <Invader> retval = new List <Invader>();
// if the invader level is past the maximum, then return an empty invader list
if (SentAllInvaders)
{
return(retval);
}
// TODO: This could be something to adjust based on the difficulty
// decide how many invaders we're going to send
int invaderCount = 10;
// create a class that holds the default weights of everything
InvaderLevelUpInfo info = new InvaderLevelUpInfo(pieces, mMadeItCount, mDestroyedCount);
// now then, create a loop to generate the invaders
for (int i = 0; i < invaderCount; ++i)
{
// determine the boolean properties for the invader
bool flying = RandomGenerator.NextBool();
bool leftRight = RandomGenerator.NextBool();
// get the start/goal and key
GridCell start = leftRight ? horizontal.Start : vertical.Start;
GridCell goal = leftRight ? horizontal.End : vertical.End;
DijkstraType key = leftRight ? DijkstraType.LeftToRight : DijkstraType.TopToBottom;
// create a base invader. This invader will have a 50% chance of flying.
Invader invader = new Invader(this, flying);
// set the experience of the invader given the weights
invader.LevelUp((InvaderLevel * 10), InvaderLevel, info);
// send the invader to the map
invader.BriefOnMission(start, goal, key);
// next, add the invader to the list
retval.Add(invader);
}
// increase the level
++InvaderLevel;
// if we increased the level to the maximum invader level, then we've sent all of the invaders
if (InvaderLevel > Invader.MaxInvaderLevel)
{
SentAllInvaders = true;
InvaderLevel = Invader.MaxInvaderLevel;
}
// return the invaders
return(retval);
}
private void GenerateNextWave()
{
// get the data needed for the mothership
GridDestination horizontal = new GridDestination(HorzStartCell, HorzGoalCell);
GridDestination vertical = new GridDestination(VertStartCell, VertGoalCell);
// generate the next wave
IEnumerable <Invader> invaders = invaderMothership.GenerateWave(horizontal, vertical, mPieces, Grid);
mInvaders.AddRange(invaders);
// trigger the design phase as over
if (Player.State == PlayerState.Designing)
{
Player.TriggerDesignPhaseOver();
}
// sort the invaders so that the flying ones are drawn last
mInvaders.Sort((a, b) => a.Flying.CompareTo(b.Flying));
}