void Start()
{
InitFields();
InitVisualizerField();
InitChunkFields();
spiritParticles = new SpiritParticle[150];
for (int i = 0; i < 150; ++i)
{
spiritParticles[i] = new SpiritParticle(UnityEngine.Random.Range(3.0f, 30.0f));
}
}
void Start()
{
InitFields();
InitVisualizerField();
InitChunkFields();
spiritParticles = new SpiritParticle[150];
for(int i = 0; i < 150; ++i)
{
spiritParticles[i] = new SpiritParticle(UnityEngine.Random.Range(3.0f, 30.0f));
}
}
public void UpdateSpritParticles()
{
if (spiritParticleSystem == null)
{
return;
}
int pcount = maxSpiritParticles; //spiritParticleSystem.particleCount;
UnityEngine.ParticleSystem.Particle[] particles = new UnityEngine.ParticleSystem.Particle[pcount];
//spiritParticleSystem.GetParticles(particles);
Vector3 centerOfScreen = camcam.ViewportToWorldPoint(new Vector3(0.5f, 0.5f, 0.0f));
float minLineDist = 75.0f;
int pIdx = 1;
int numConnectedParticles = 0;
float dt = Time.deltaTime;
for (int i = 0; i < pcount; ++i)
{
SpiritParticle sp = spiritParticles[i];
Vector3 ppos = sp.position;
Vector3 screenPos = camcam.WorldToViewportPoint(ppos);
int xCell = (int)(screenPos.x * N);
int yCell = (int)(screenPos.y * N);
sp.initTime -= dt;
if (sp.initTime > 0.0f)
{
sp.mass = 1.0f - sp.initTime;
}
else
{
sp.velocity *= 1.0f - (0.5f * dt);
if (xCell >= 1 && xCell < N - 1 && yCell >= 1 && yCell < N - 1)
{
ppos.x += u[xCell, yCell] * SpirtParticlesEffectedByGridVelocity;
ppos.y += v[xCell, yCell] * SpirtParticlesEffectedByGridVelocity;
//this.densityField[xCell,yCell] += 0.01f;
}
else //bring em back towards the center of the screen
{
Vector3 sub = centerOfScreen - ppos;
float len = sub.magnitude;
sub.Normalize();
sub *= ((SpiritGravity * (sp.mass * 100) / len));
sp.velocity.x += sub.x;
sp.velocity.y += sub.y;
}
//gravy towards player-finger-downs
for (int m = 0; m < 2; ++m)
{
if (ownerPlayerMouseInfo[m].player == null)
{
continue;
}
if (ownerPlayerMouseInfo[m].playerScript.MouseFingerDown() != PlayerScript.FingerState.None)
{
Vector3 sub = ownerPlayerMouseInfo[m].player.transform.position - ppos;
float len = sub.magnitude;
sub.Normalize();
sub *= ((SpiritToPlayerAttraction * (sp.mass * 400) / len));
sp.velocity.x += sub.x;
sp.velocity.y += sub.y;
}
}
//Do N-Body gravitations!
for (int j = pIdx; j < pcount; ++j)
{
SpiritParticle sp2 = spiritParticles[j];
Vector3 ppos2 = sp2.position;
Vector3 sub = ppos2 - ppos;
float len = sub.magnitude;
if (len < minLineDist)
{
//Add a line between all these guys!
float alpha = 1 - (len / minLineDist);
Color col = new Color(1.0f, 1.0f, 1.0f, alpha);
linesToDraw.Add(new LineToDraw(ppos, ppos2, col, col));
++numConnectedParticles;
}
sub.Normalize();
sub *= ((SpiritGravity * (sp.mass * sp2.mass) / len)) * 0.25f;
if (len < SpritParticleSeperationDistance)
{
sp.velocity.x -= sub.x;
sp.velocity.y -= sub.y;
}
else
{
sp.velocity.x += sub.x;
sp.velocity.y += sub.y;
}
}
}
++pIdx;
ppos.x += sp.velocity.x * dt;
ppos.y += sp.velocity.y * dt;
sp.position = ppos;
particles[i].startLifetime = 2.5f;
particles[i].lifetime = 5.0f;
particles[i].position = ppos;
particles[i].size = sp.mass * 20;
particles[i].color = new Color32(248, 168, 255, 255);
}
//DebugStreamer.message = "maxSpiritParticles: " + maxSpiritParticles.ToString();
spiritParticlesAllConnected = numConnectedParticles == maxSpiritParticles;
spiritParticleSystem.SetParticles(particles, maxSpiritParticles);
}
