public void Breed(Cell[,] grid, List <GreenFly> greenFlies)
{
//This method handle the breed part for greenfly, it has two main parts:
//[1] (for loop) it checks the four cells (up, down, right, left) close to the greenfly and add empty cells to the list.
//[2] (if part) if empty cells were found, a random cell is chosen to create a new greenfly in it.
List <int[]> possibleCells = new List <int[]>();
int[] breedCell;
for (int i = 0; i < 4; i++) //[1]
{
breedCell = GetNeighbourCoor(i, row, column);
// Checks if the cell exist within the grid.
if ((breedCell[0] < grid.GetLength(0) && breedCell[0] >= 0) && (breedCell[1] < grid.GetLength(1) && breedCell[1] >= 0))
{
if (grid[breedCell[0], breedCell[1]].content == ' ')
{
possibleCells.Add(breedCell);
}
}
}
if (possibleCells.Count > 0) // [2]
{
int randBreedCell = rand.Next(0, possibleCells.Count); // Min = 0 || Maxpossible = 0 or 1 or 2 or 3.
breedCell = possibleCells[randBreedCell];
GreenFly nextGf = new GreenFly(breedCell[0], breedCell[1]);
grid[nextGf.row, nextGf.column].content = nextGf.shape;
greenFlies.Add(nextGf);
}
}
private void ChangeLadybirds() // This method Move and Breed Ladybirds.
{
// We iterate starting at the end of the list for two reasons:
// 1.If a ladybird is removed, we don't want to try an access an element that doesn't exist.
// 2.When new ladybirds are added we won't loop over them until next turn.
for (int L = ladybirds.Count - 1; L >= 0; L--)
{
LadyBird currentLb = ladybirds[L];
currentLb.lifeTime++;
if (currentLb.notEating == 3) // Checking if the ladybird has starved.
{
cells[currentLb.row, currentLb.column].content = ' ';
ladybirds.Remove(currentLb);
continue;
}
// MOVE Part for LadyBirds.
currentLb.Move(cells);
if (currentLb.eat)
{
GreenFly.KillGreenFly(greenflies, currentLb.row, currentLb.column);
}
// BREED Part For LadyBirds.
if (currentLb.lifeTime != 0 && currentLb.lifeTime % 8 == 0)
{
currentLb.Breed(cells, ladybirds);
}
}
}
private void ChangeGreenflies() // This method Move and Breed GreenFlies.
{
// Storing the current number of greenflies so we don't loop over new greenflies until next turn.
int gfNums = greenflies.Count;
for (int G = 0; G < gfNums; G++)
{
GreenFly currentGf = greenflies[G];
currentGf.lifeTime++;
// MOVE PART For GreenFlies.
currentGf.Move(cells);
// BREED PART For GreenFlies.
if (currentGf.lifeTime != 0 && currentGf.lifeTime % 3 == 0)
{
currentGf.Breed(cells, greenflies);
}
}
}
public void Generate() // This method Create the world each turn.
{
/// The method generate the world, it has two parts:
/// 1. When the world is empty (else part).
/// 2. When the world has been created (if part) the method will call other methods to make the necessary changes.
if (cells != null) // [2]
{
ChangeLadybirds();
ChangeGreenflies();
graphValues.Add(timeStep, new int[] { greenflies.Count, ladybirds.Count });
continu &= (ladybirds.Count != 0 && greenflies.Count != 0); // Checking if the number of greenflies or ladybirds has reached 0.
}
else //[1]
{
timeStep = 0;
graphValues.Add(timeStep, new int[] { startGreenflyNums, startLadybirdNums });
cells = new Cell[length, width];
for (int i = 0; i < cells.GetLength(0); i++)
{
for (int j = 0; j < cells.GetLength(1); j++)
{
cells[i, j] = new Cell(i, j);
}
}
// GreenFlies and Ladybirds are created randomly throughout the grid.
Random rand = new Random();
for (int L = 0; L < startLadybirdNums; L++) // Creating Ladybirds.
{
int randX = rand.Next(0, length);
int randY = rand.Next(0, width);
if (CellIsEmpty(randX, randY))
{
LadyBird ladyBird = new LadyBird(randX, randY);
ladybirds.Add(ladyBird);
cells[randX, randY].content = ladyBird.shape;
}
else
{
while (!CellIsEmpty(randX, randY)) // keep looping until en empty cell is found.
{
randX = rand.Next(0, length);
randY = rand.Next(0, width);
}
LadyBird ladyBird = new LadyBird(randX, randY);
ladybirds.Add(ladyBird);
cells[randX, randY].content = ladyBird.shape;
}
}
for (int G = 0; G < startGreenflyNums; G++) //Creating Greenflies.
{
int randX = rand.Next(0, length);
int randY = rand.Next(0, width);
if (CellIsEmpty(randX, randY))
{
GreenFly greenfly = new GreenFly(randX, randY);
greenflies.Add(greenfly);
cells[randX, randY].content = greenfly.shape;
}
else
{
while (!CellIsEmpty(randX, randY))
{
randX = rand.Next(0, length);
randY = rand.Next(0, width);
}
GreenFly greenfly = new GreenFly(randX, randY);
greenflies.Add(greenfly);
cells[randX, randY].content = greenfly.shape;
}
}
}
Information(); // Update the information.
}
