public void AddParticles(Vector2 where, Particle.ParticleType PT, Color c)
{
//overload for different colors
if (UsableParticles.Count > 0)//Check for free particles
{
Particle p = UsableParticles[0];//get an avaiable particle
UsableParticles.Remove(p);//It is no longer available
p.color = c;
p.type = PT;
switch (PT)
{
case Particle.ParticleType.SmokePlume:
InitializeSmokePlumeParticle(p, where);
break;
case Particle.ParticleType.Explosion:
InitializeExplosionParticle(p, where);
break;
case Particle.ParticleType.Smoke:
InitializeSmokeExplosionParticle(p, where);
break;
case Particle.ParticleType.Lightning:
InitializeLightningParticle(p, where);
break;
}
ParticlesInUse.Add(p);
}
}
public void AddParticles(Vector2 where, Particle.ParticleType PT, Vector2 returnposition, Color c)
{
if (UsableParticles.Count > 0)//Check for free particles{
{
UsableParticles[0].return_position = returnposition;
UsableParticles[0].fly = true;
AddParticles(where, PT, c);
}
}
protected virtual void InitializeSmokeExplosionParticle(Particle p, Vector2 where)
{
int minInitialSpeed = 20;
int maxInitialSpeed = 30;
int minAcceleration = -10;
int maxAcceleration = -50;
float minLifetime = 0.7f;
float maxLifetime = 1.0f;
float minScale = 0.1f;
float maxScale = 0.3f;
float minRotationSpeed = 0;
float maxRotationSpeed = 0;
// spriteBlendMode = SpriteBlendMode.AlphaBlend;
//DrawOrder = AlphaBlendDrawOrder;
Vector2 direction = PickRandomDirection();
float velocity = RandomBetween(minInitialSpeed, maxInitialSpeed);
float acceleration = RandomBetween(minAcceleration, maxAcceleration);
float lifetime = RandomBetween(minLifetime, maxLifetime);
float scale = RandomBetween(minScale, maxScale);
float rotationSpeed = RandomBetween(minRotationSpeed, maxRotationSpeed);
p.Initialize(where, velocity * direction, acceleration * direction,
lifetime, scale, rotationSpeed);
}
protected virtual void InitializeSmokePlumeParticle(Particle p, Vector2 where)
{
Vector2 direction = PickRandomDirection();
p._alive = true;
float velocity = RandomBetween(20, 100);
float acceleration = RandomBetween(0, 0);
float lifetime = RandomBetween(5, 7);
float scale = RandomBetween(.5f, 1);
float rotationSpeed = RandomBetween(-MathHelper.PiOver4 / 2.0f, MathHelper.PiOver4 / 2.0f);
p.Initialize(where, velocity * direction, acceleration * direction,
lifetime, scale, rotationSpeed);
}
protected virtual void InitializeLightningParticle(Particle p, Vector2 where)
{
//protected override void InitializeConstants()
//{
int minInitialSpeed = 100;
int maxInitialSpeed = 200;
int minAcceleration = 0;
int maxAcceleration = 0;
float minLifetime = 0.2f;
float maxLifetime = .4f;
float minScale = 0.1f;
float maxScale = .2f;
float minRotationSpeed = 0;
float maxRotationSpeed = 3;
//spriteBlendMode = SpriteBlendMode.Additive;
//DrawOrder = AdditiveDrawOrder;
Vector2 direction = PickRandomDirection();
float velocity = RandomBetween(minInitialSpeed, maxInitialSpeed);
float acceleration = RandomBetween(minAcceleration, maxAcceleration);
float lifetime = RandomBetween(minLifetime, maxLifetime);
float scale = RandomBetween(minScale, maxScale);
float rotationSpeed = RandomBetween(minRotationSpeed, maxRotationSpeed);
p.Initialize(where, velocity * direction, acceleration * direction,
lifetime, scale, rotationSpeed);
p.rotation = (float)Math.PI;
}
