public void Update(GameTime gt)
{
float dt = (float)gt.ElapsedGameTime.TotalSeconds;
// Update the physics multiple times per frame (in this case, 10 times per frame)
for (int i = 0; i < _physicsSubstep; i++)
{
PhysicsManager.Update(dt / _physicsSubstep);
}
AIManager.Update(this, dt);
// Check if there are less enemies than the maximum and add more as necessary
if (Enemies.Count < MaximumEnemies)
{
SpawnEnemy();
}
// Update the spawn points
foreach (SpawnPoint sp in SpawnPoints)
{
if (sp.TimeSinceLastSpawn > sp.RespawnDelay && !ActiveSpawnPoints.Contains(sp))
{
ActiveSpawnPoints.Add(sp);
}
sp.TimeSinceLastSpawn += dt;
}
// Health shouldn't be below 0
if (PortalHealth < 0)
{
PortalHealth = 0;
}
// If you haven't lost yet, keep updating the score
if (!GameOver)
{
Score += dt;
}
}
// Spawns an enemy
public void SpawnEnemy()
{
if (Enemies.Count < MaximumEnemies && ActiveSpawnPoints.Count > 0)
{
SpawnPoint sp = ActiveSpawnPoints[RandomGen.Next(0, ActiveSpawnPoints.Count - 1)];
Character enemy = new Character(false);
enemy.Behaviour = new AIBehaviour(enemy, AIManager.NodeManager);
enemy.Position = sp.Position;
RigidBody enemyBody = enemy.RigidBody;
enemyBody.Position = enemy.Position;
enemyBody.Width = 32;
enemyBody.Height = 32;
enemyBody.CollidableObject = new BoxCollider();
enemy.TexturePos = new Vector2(enemy.Position.X - enemyBody.Width / 2, enemy.Position.Y - enemyBody.Height / 2);
PhysicsManager.DynamicObjects.Add(enemy);
PhysicsManager.AllPhysObjects.Add(enemy);
Enemies.Add(enemy);
sp.TimeSinceLastSpawn = 0;
ActiveSpawnPoints.Remove(sp);
}
}