public void InstantiatePool(ClassType type, Game game, int poolSize, string poolTag)
//where T : DrawableSprite, new()
{
//I have know idea if this is how this would work.
//Queue<DrawableSprite> pool = new Queue<DrawableSprite>();
//for (int i = 0; i < poolSize; i++)
//{
// var instance = Activator.CreateInstance(typeof(T), new DrawableSprite[] { game, null });
// pool.Enqueue(instance);
//}
try
{
if (poolDictionary[poolTag] == null)
{
poolDictionary.Remove(poolTag);
}
}
catch (KeyNotFoundException k)
{
Queue <DrawableSprite> queue = new Queue <DrawableSprite>();
for (int i = 0; i < poolSize; i++)
{
switch (type)
{
case ClassType.Enemy:
Enemies.BasicEnemy e = new Enemies.BasicEnemy(game);
e.Initialize();
e.Enabled = false;
queue.Enqueue(e);
break;
case ClassType.Shot:
Shot s = new Shot(game);
s.Initialize();
s.Enabled = false;
queue.Enqueue(s);
break;
case ClassType.Pickup:
Pickups.PickUp p = new Pickups.PickUp(game);
p.Initialize();
p.Enabled = false;
queue.Enqueue(p);
break;
default:
break;
}
}
Pool pool = new Pool(game, queue);
poolDictionary.Add(poolTag, pool);
}
}
//checks to see if the enemy collides with various things
private void CheckCollision(GameTime gameTime)
{
foreach (Enemy enemy in poolManager.PoolDictionary[enemyPoolTag].objectPool)
{
if (enemy.Enabled)
{
//enemy and bullet collision
foreach (Shot shot in poolManager.PoolDictionary["Shots"].objectPool)
{
if (shot.Enabled)
{
if (enemy.Intersects(shot))
{
if (enemy.PerPixelCollision(shot))
{
//enemy takes damage and destroys the shot
enemy.TakeDamage(shot.damage);
shot.Dies(gameTime);
if (enemy.Health < 0)
{
Pickups.PickUp p = (Pickups.PickUp)poolManager.PoolDictionary["PickUps"].SpawnFromPool(enemy.Location, new Vector2(0, 0));
p.type = (Pickups.PickUp.PickUpType)r.Next(0, Enum.GetNames(typeof(Pickups.PickUp.PickUpType)).Length);
enemy.Dies(gameTime);
scoreManager.score += 10;
}
numOfEnemiesKilled++;
}
}
}
}
//enemy and player collision
if (enemy.Intersects(player))
{
if (enemy.PerPixelCollision(player))
{
player.TakeDamage(enemy.damage);
enemy.Dies(gameTime);
numOfEnemiesKilled++;
}
}
//enemy and enemy collision
foreach (Enemy other in poolManager.PoolDictionary[enemyPoolTag].objectPool)
{
if (other.Enabled && other.type != "Ranged" || other.type == enemy.type)
{
//code barrowed form my old sim and serious homeworks. makes the enemies bounce off of one another
var dist = Vector2.Distance(enemy.Location, other.Location);
var sum = new Vector2();
int count = 0;
//if (enemy.Intersects(other))
if (dist > 0 && dist < other.spriteTexture.Width)
{
var diff = Vector2.Subtract(enemy.Location, other.Location);
diff = Vector2.Divide(diff, dist);
sum = Vector2.Add(sum, diff);
count++;
}
if (count > 0)
{
sum = Vector2.Divide(sum, count);
sum.Normalize();
sum *= (enemy.Speed * gameTime.ElapsedGameTime.Milliseconds / 1000);
var steer = Vector2.Subtract(sum, enemy.velocity);
//freezes enemy in place but its better looking than the vibrations i get now
//enemy.Location = enemy.lastLocation;
enemy.AddForce(steer);
}
}
}
}
}
}
