private Asteroid(Field field)
{
this.field = field;
//place in the exact center, to start
this.y_pos = rand.Next(field.Left, field.Width);
this.x_pos = rand.Next(field.Top, field.Height);
}
private Rocket(Field field)
{
this.field = field;
//place in the exact center, to start
this.y_pos = (field.Height - field.Top) / 2;
this.x_pos = (field.Width - field.Left) / 2;
this.Radius = 10;
}
public static Asteroid Create(Field field)
{
return new Asteroid(field);
}
private void StartGame()
{
this.Wave = 1;
this.messageLabel.Visible = false;
this.messageLabel.Top = this.Height / 2;
this.messageLabel.Left = this.Width / 2;
this.Lives = 3;
this.Score = 0;
const int PADDING = 25;
this.field = Field.create(this.Top + PADDING, this.Left + PADDING, this.Height - PADDING, this.Width - PADDING);
rocketItem = Rocket.Create(this.field);
rocketItem.Radius = 10;
const int ASTEROID_SIZE = 60;
const int ASTEROID_COUNT = 7;
CurrentWaveCount = ASTEROID_COUNT;
this.CurrentWaveSize = ASTEROID_SIZE;
this.CreateAsteroidWave(ASTEROID_COUNT, ASTEROID_SIZE);
this.starCollection.Clear();
this.bulletCollection.Clear();
const int STAR_COUNT = 55;
for (int i = 0; i < STAR_COUNT; i++)
{
Star star = Star.Create(this.field);
starCollection.Add(star);
}
this.IsGameOn = true;
}
private void DrawSpaceItem(Graphics g, SpaceItem item, Field field, int brightness)
{
double scale = brightness / 100.0;
int newRed = (int)(item.ItemColor.R * scale);
int newGreen = (int)(item.ItemColor.G * scale);
int newBlue = (int)(item.ItemColor.B * scale);
Color penColor = Color.FromArgb(newRed, newGreen, newBlue);
Pen pen = new Pen(penColor);
Point[] points = item.EdgePoints;
Point[] relativePoints = getRelativePoints(points, item);
Point[] rotatedPoints = getRotatedPoints(relativePoints, item);
g.DrawLines(pen, rotatedPoints);
}
public static Star Create(Field field)
{
return new Star(field);
}
private Star(Field field)
{
this.field = field;
this.x_pos = rand.Next(field.Left, field.Width);
this.y_pos = rand.Next(field.Top, field.Height);
}
public static Rocket Create(Field field)
{
return new Rocket(field);
}