bool CheckParticleCollision(Collision sprite1, ParticleManager particles)
{
for (int particle = 0; particle < particles.particles.Count; particle++)
{
sprite2 = particles.GetCollider(particle);
if (sprite1.visiblePixelCollision(sprite2))
{
particles.Kill(particle);
particles.Update();
particle--;
return(true);
}
}
return(false);
}
void UpdateList(List <SpriteStripManager> list, SpriteStripManager item, GameTime gameTime)
{
for (int i = 0; i < list.Count; i++)
{
int hit = 0;
if (list[i].myID == 2)
{
// if the item in the list is an alien it reduces the shotcooldown and allows the ai to control it.
list[i].shotcooldown -= (float)gameTime.ElapsedGameTime.TotalSeconds;
if (myShip.Scale == 1)
{
ai.Think(list[i], myShip, controller, EnemyBulletParticles, soundlistinstance[0]);
}
}
controller.Update(list[i]);
list[i].Update();
sprite1 = list[i].GetCollider();
if (list[i].isCollectable == false)
{
//these checks are for when the player hits objects with it's bullets
for (int particle = 0; particle < PlayerBulletParticles.particles.Count; particle++)
{
sprite2 = PlayerBulletParticles.GetCollider(particle);
if (CheckParticleCollision(sprite1, PlayerBulletParticles))
{
//create 2 small asteroids when a large one is destroyed
if (list[i].Scale >= 0.5 && list[i].myID == 1)
{
spawner.SpawnChildren(item, list, asteroidIdle, i, (int)Difficulty.difficulty / 2, ranGen);
numAsteroid += (int)Difficulty.difficulty / 2;
}
if (list[i].Scale > 0.5 && list[i].myID == 2)
{
//spawns 0 aliens at difficulties 0-2, 1 alien from 3-5 and 2 aliens on the other difficulties when an alien is destroyed
spawner.SpawnChildren(item, list, alienIdle, i, (int)Difficulty.difficulty / 3, ranGen);
numAliens += (int)Difficulty.difficulty / 3;
}
//remove asteroid when hit by player shot
GenerateParticleEffects(list[i]);
if (list[i].myID == 1)
{
if (list[i].Scale == 1)
{
soundlist[1].Play();
}
else if (list[i].Scale == 0.5)
{
soundlist[2].Play();
}
else
{
soundlist[3].Play();
}
hud.score += 50;
extralifecounter += 50;
numAsteroid--;
}
else
{
numAliens--;
hud.score += 100;
extralifecounter += 100;
soundlist[4].Play();
}
list.RemoveAt(i);
hit = 1;
}
}
}
//if the player has been hit before than the following is skipped
if (hit == 0)
{
//these checks are for when the player collides with other objects.
if (timesincelasthit > 2 || list[i].isCollectable)
{
sprite2 = myShip.GetCollider();
if (sprite1.visiblePixelCollision(sprite2))
{
if (list[i].Scale >= 0.5 && list[i].myID == 1)
{
spawner.SpawnChildren(item, list, asteroidIdle, i, (int)Difficulty.difficulty / 2, ranGen);
numAsteroid += (int)Difficulty.difficulty / 2;
}
if (list[i].Scale > 0.5 && list[i].myID == 2)
{
//spawns 0 aliens at difficulties 0-2, 1 alien from 3-5 and 2 aliens on the other difficulties when an alien is destroyed
spawner.SpawnChildren(item, list, alienIdle, i, (int)Difficulty.difficulty / 3, ranGen);
numAliens += (int)Difficulty.difficulty / 3;
}
//remove asteroid when hit by player shot
if (list[i].myID == 1)
{
numAsteroid--;
hud.score += 25;
extralifecounter += 25;
if (list[i].Scale == 1)
{
soundlist[1].Play();
}
else if (list[i].Scale == 0.5)
{
soundlist[2].Play();
}
else
{
soundlist[3].Play();
}
}
else if (list[i].myID == 2)
{
numAliens--;
hud.score += 50;
extralifecounter += 50;
soundlist[4].Play();
}
else
{
numStars--;
hud.score += 100;
extralifecounter += 50;
soundlist[5].Play();
}
if (!list[i].isCollectable)
{
//if the item collided with is not a collectable then the player is destroyed.
GenerateParticleEffects(list[i]);
GenerateParticleEffects(myShip);
hud.lives--;
myShip.Scale = 0;
timesincelasthit = 0;
soundlist[1].Play();
}
list.RemoveAt(i);
}
}
}
}
}