private void SpawnAllEnemies()
{
for (int i = 0; i < 4; i++)
{
int randX = random.Next(200, GalagaGame.GAME_WIDTH - 200);
int randY = random.Next(500, GalagaGame.GAME_HEIGHT);
List <Point> bezierMove = QuadraticBezier.CalculatePoints(
new Point(-200 + (i * 600), -100),
//new Point(GalagaGame.GAME_WIDTH / 2, GalagaGame.GAME_HEIGHT),
//new Point(randX, randY),
getRandomPointOnScreen(),
new Point(GalagaGame.GAME_WIDTH / 2, 700),
30);
for (int j = 0; j < 6; j++)
{
int tempJ = j;
int tempI = i;
Timer firstRowTimer = new Timer((t) =>
{
EnemyShip en = new EnemyShip(-200 + (i * 600), -100, (ShipTypeEnum)(tempI + 2), 0);
en.PositionOnGrid.X = tempJ;
en.PositionOnGrid.Y = tempI;
List <Point> moveWithLanding = new List <Point>(bezierMove);
en.BeginMovingOnCurve(moveWithLanding, 1.0f);
}, 200 * j + 1500 * i, false);
}
}
}
public static void UpdateEnemyPosition(int deltaTime, GameMode game)
{
foreach (RotatingShip ship in ListOfShips)
{
if (ship.Type != ShipTypeEnum.PLAYER)
{
EnemyShip enemy = (EnemyShip)ship;
if (!enemy.MovingOnCurve)
{
continue;
}
if (enemy.landing)
{
//enemy.currentPath[enemy.currentPath.Count - 1].X = (int)EnemyGrid.Position.X; // doesn't work because Point is struct
Point p = enemy.currentPath[enemy.currentPath.Count - 1];
p.X = (int)(EnemyGrid.Position.X + enemy.PositionOnGrid.X * (16 + EnemyGrid.gap) * RotatingShip.Scale);
enemy.currentPath[enemy.currentPath.Count - 1] = p;
}
Point src = enemy.currentPath[enemy.currentSection - 1];
Point dst = enemy.currentPath[enemy.currentSection];
Vector2 moveVector = new Vector2(dst.X - src.X, dst.Y - src.Y);
enemy.SetDirection(moveVector);
Vector2 normalized = Vector2.Normalize(moveVector);
enemy.Position.X += normalized.X * enemy.speed * deltaTime;
enemy.Position.Y += normalized.Y * enemy.speed * deltaTime;
enemy.traveledDistanceInSection = Vector2.Distance(
enemy.Position,
new Vector2(src.X, src.Y));
if (enemy.traveledDistanceInSection > moveVector.Length())
{
enemy.currentSection++;
enemy.traveledDistanceInSection = 0;
if (enemy.currentSection > enemy.currentPath.Count - 1 && !enemy.landing)
{
// end of road. Start landing procedure
enemy.LandOnGrid();
enemy.landing = true;
//enemy.speed = 1.0f;
}
else if (enemy.landing)
{
enemy.SetDirection(new Vector2(0, -1));
enemy.landing = false;
enemy.MovingOnCurve = false;
enemy.MovingOnGrid = true;
enemy.Position.X = (int)(EnemyGrid.Position.X + enemy.PositionOnGrid.X * (16 + EnemyGrid.gap) * RotatingShip.Scale);
enemy.Position.Y = (int)(EnemyGrid.Position.Y + enemy.PositionOnGrid.Y * (16 + EnemyGrid.gap) * RotatingShip.Scale);
}
}
}
}
}
public override void OnEnter()
{
EnemyShip.ListOfShips.Clear();
Bullet.ListOfBullets.Clear();
explosions.Clear();
Lifes = 3;
Points = 0;
playerIsDead = false;
int playerShipYposition = GalagaGame.GAME_HEIGHT - 200;
#if WINDOWS
game.KeyboardKeysDown += KeysHoldDown;
game.KeyboardKeyClicked += KeyClicked;
#elif ANDROID
playerShipYposition -= 200;
game.ScreenTapped += ScreenTapped;
game.ScreenTouched += ScreenTouched;
#endif
playerShip = new PlayerShip(GalagaGame.GAME_WIDTH / 2, playerShipYposition);
enemyGrid = new EnemyGrid(new Vector2(100, 200));
SpawnAllEnemies();
gridMovingTimer = new Timer((t) => {
enemyGrid.UpdateEnemyGridPosition(game.deltaTime);
enemyAnimation = (enemyAnimation == 0) ? 1 : 0;
foreach (RotatingShip s in RotatingShip.ListOfShips)
{
if (s is EnemyShip)
{
EnemyShip en = (EnemyShip)s;
if (en.MovingOnGrid)
{
en.SetTexture(6 + enemyAnimation);
}
}
}
}, 800, true);
// shoot automatically every 0.7s in Android version
#if ANDROID
shootingTimer = new Timer((el) => {
if (!RotatingShip.ListOfShips.Contains(playerShip))
{
return;
}
Bullet b = new Bullet(playerShip.Hitbox.Center.X - 2 * RotatingShip.Scale, playerShip.Position.Y, BulletType.ALLY);
GameEvent(GameEventEnum.PLAYER_FIRE);
}, 700, true);
#endif
}
public void UpdateEnemyGridPosition(int deltaTime)
{
if (movingRight)
{
Position.X += Speed * deltaTime;
}
else
{
Position.X -= Speed * deltaTime;
}
if (Position.X < 50)
{
Position.X = 50;
movingRight = true;
}
else if (Position.X > GalagaGame.GAME_WIDTH - COLS * (16 + gap) * RotatingShip.Scale - 20)
{
Position.X = GalagaGame.GAME_WIDTH - COLS * (16 + gap) * RotatingShip.Scale - 20;
movingRight = false;
}
foreach (RotatingShip s in EnemyShip.ListOfShips)
{
if (s.Type == ShipTypeEnum.PLAYER)
{
continue;
}
EnemyShip ship = (EnemyShip)s;
if (ship.PositionOnGrid.X != -1 && ship.MovingOnGrid)
{
ship.Position.X = Position.X + ship.PositionOnGrid.X * (16 + gap) * RotatingShip.Scale;
ship.Position.Y = Position.Y + ship.PositionOnGrid.Y * (16 + gap) * RotatingShip.Scale;
}
}
//for (int row = 0; row < ROWS; row++)
//{
// for (int col = 0; col < COLS; col++)
// {
// if (Grid[col, row] != null && Grid[col, row].MovingOnGrid)
// {
// Grid[col, row].Position.X = Position.X + col *(16+1) * RotatingShip.Scale;
// Grid[col, row].Position.Y = Position.Y + row * (16 + 1) * RotatingShip.Scale;
// }
// }
//}
}
public override void Update(int deltaTime)
{
Bullet.UpdateBulletsPosition(deltaTime, this);
EnemyShip.UpdateEnemyPosition(deltaTime, this);
// random shooting
if (!playerIsDead && random.Next() % 50 == 5)
{
foreach (RotatingShip ship in RotatingShip.ListOfShips)
{
if (ship is EnemyShip)
{
if (random.Next() % 70 == 6)
{
Bullet b = new Bullet(ship.Hitbox.Center.X - 2 * RotatingShip.Scale, ship.Position.Y, BulletType.ENEMY);
}
}
}
}
// choose one enemy on grid and do random movement
if (!playerIsDead && random.Next() % 60 == 5)
{
foreach (RotatingShip ship in RotatingShip.ListOfShips)
{
if (ship is EnemyShip)
{
EnemyShip enemy = (EnemyShip)ship;
if (random.Next() % 30 == 6 && enemy.MovingOnGrid)
{
List <Point> road_1 = QuadraticBezier.CalculatePoints(
new Point((int)enemy.Position.X, (int)enemy.Position.Y),
getRandomPointOnScreen(),
getRandomPointOnScreen(), 30);
enemy.BeginMovingOnCurve(road_1, 1.0f);
}
}
}
}
}