public void Init(Particle2DData setting)
{
this.lifeTime = setting.lifeTime;
transform.position = setting.position;
pBody.velocity = setting.velocity;
pBody.gravityScale = setting.gravityScale;
pBody.fixedAngle = true;
if (setting.collide)
{
pColl.enabled = true;
pColl.size = setting.sprite.bounds.size;
pColl.sharedMaterial = setting.collidingMaterial;
}
else
{
pColl.enabled = false;
}
pRenderer.sprite = setting.sprite;
pRenderer.material = setting.material;
pRenderer.color = setting.color;
transform.localScale = setting.scale;
Invoke("Disable", lifeTime);
}
public static void integrate(ref Particle2DData particle, float dt)
{
Vector2 vel = particle.velocity * (float)dt;
particle.position += new Vector2(vel.x, vel.y);
Vector2 resultingAcc = particle.acceleration;
//only accumulate forces if ignoreForces is false
if (!particle.ignoreForces) //accumulate forces here
{
resultingAcc += particle.accumulatedForces * particle.mass;
}
particle.velocity += (resultingAcc * (float)dt);
float damping = Mathf.Pow(particle.dampingConstant, (float)dt);
particle.velocity *= damping;
particle.accumulatedForces = Vector2.zero;
}
Particle2DData MakeRandomParticle()
{
Particle2DData p = new Particle2DData();
p.lifeTime = m_pSystemData.lifeTime;
float randomX = Random.value - 0.5f;
float randomY = Random.value - 0.5f;
Vector3 randomDirection = new Vector3(randomX, randomY, 0);
if (m_pSystemData.bounds.size.x == 0)
{
p.position = transform.position;
}
else
{
p.position = transform.position + (Vector3)FindBorder(randomX, randomY);
}
if (LayerUtil.IsLayerExists(p.position, ParticleManager.Inst.particleCollidingLayer))
return null;
/*
RaycastHit2D[] hits = Physics2D.RaycastAll(transform.position, randomDirection, 1.2f, collidingMask);
if (hits.Length > 1)
{
return null;
}
*/
p.velocity = (randomDirection * Random.Range(m_pSystemData.minVelocity, m_pSystemData.maxVelocity)) + (Vector3)(m_pSystemData.gravityModifier);
p.gravityScale = m_pSystemData.gravityScale;
p.collide = m_pSystemData.collide;
p.sprite = m_pSystemData.sprite;
p.collidingMaterial = m_pSystemData.collidingMaterial;
p.material = m_pSystemData.material;
p.color = m_pSystemData.colors[(int)(Random.value * m_pSystemData.colors.Length)];
p.scale = Vector3.one * (m_pSystemData.size / m_pSystemData.sprite.bounds.size.x);
return p;
}
