//Updating enemies
internal void Update(float a_elapsedTime)
{
m_enemyProjectiles.RemoveAll(x => x.Active == false);
foreach (Enemy enemy in m_enemies)
{
if (!m_player.IsAlive)
{
enemy.IsAlive = true;
}
//Fall & jump mechanics
//Needs to be updated before Vertical collision
if (!enemy.IsOnGround && !enemy.IsJumping)
{
enemy.Obj.Bounds.Y += Convert.ToInt32(a_elapsedTime * enemy.Speed.X);
}
if ((enemy.EnemyType == Enemy.Type.Jumper || enemy.EnemyType == Enemy.Type.Shooter) && enemy.IsAlive)
{
if (enemy.IsJumping)
{
enemy.IsOnGround = false;
enemy.Obj.Bounds.Y -= (int)enemy.Speed.Y;
enemy.SpeedY -= a_elapsedTime / 0.10f;
}
//Updating jump mechanics within the enemy object
enemy.Update(a_elapsedTime);
}
//Collision handeling; Vertical
m_level.CheckVerticalCollision(enemy);
if (enemy.IsAlive)
{
enemy.Visibility = 1;
//Updating logic for enemy type; Shooter
if (enemy.EnemyType == Enemy.Type.Shooter)
{
#region Shooter
bool leftDirection = m_player.Rectangle.Center.X < enemy.Rectangle.Center.X;
if (enemy.ProjectileCoolDown <= 0)
{
int shotSpawn;
if (leftDirection)
{
shotSpawn = enemy.Rectangle.Left;
}
else
{
shotSpawn = enemy.Rectangle.Right;
}
m_enemyProjectiles.Add(new Projectile(shotSpawn, enemy.Rectangle.Center.Y - 5, leftDirection));
enemy.ProjectileCoolDown = 2;
}
else
{
enemy.ProjectileCoolDown -= a_elapsedTime;
}
if ((enemy.ProjectileCoolDown < 0.5 || enemy.ProjectileCoolDown > 1.5))
{
if (leftDirection)
{
enemy.UnitState = State.ID.JUMPING_LEFT;
}
else
{
enemy.UnitState = State.ID.JUMPING_RIGHT;
}
}
else
{
if (leftDirection)
{
enemy.UnitState = State.ID.FACING_LEFT;
}
else
{
enemy.UnitState = State.ID.FACING_RIGHT;
}
}
#endregion
}
//Updating logic for enemy type; Crawler and Jumper
#region Crawler & Jumper horizontal movments
if ((enemy.UnitState != State.ID.MOVING_RIGHT && enemy.UnitState != State.ID.MOVING_LEFT) && enemy.EnemyType != Enemy.Type.Shooter)
{
enemy.UnitState = State.ID.MOVING_RIGHT;
}
if (enemy.UnitState == State.ID.MOVING_RIGHT)
{
enemy.Obj.Bounds.X += Convert.ToInt32(a_elapsedTime * enemy.Speed.X);
}
else if (enemy.UnitState == State.ID.MOVING_LEFT)
{
enemy.Obj.Bounds.X -= Convert.ToInt32(a_elapsedTime * enemy.Speed.X);
}
#endregion
if (m_level.DidReachTurningPoint(enemy))
{
if (enemy.UnitState == State.ID.MOVING_RIGHT)
{
enemy.UnitState = State.ID.MOVING_LEFT;
}
else
{
enemy.UnitState = State.ID.MOVING_RIGHT;
}
}
CheckPlayerCollision(enemy);
}
else
{
enemy.Visibility = enemy.Visibility - 0.01f;
}
}
//Updating all projectiles generated from enemy type; Shooter
foreach (Projectile projectile in m_enemyProjectiles)
{
if (projectile.DirectionLeft)
{
projectile.X -= Convert.ToInt32(a_elapsedTime * projectile.Speed);
}
else
{
projectile.X += Convert.ToInt32(a_elapsedTime * projectile.Speed);
}
if (projectile.Rec.Intersects(m_player.Rectangle))
{
m_player.LostLife();
}
}
}
