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-rw-r--r--src/particle/particle.cpp231
1 files changed, 118 insertions, 113 deletions
diff --git a/src/particle/particle.cpp b/src/particle/particle.cpp
index 1df42724b..0705c1ed1 100644
--- a/src/particle/particle.cpp
+++ b/src/particle/particle.cpp
@@ -115,110 +115,104 @@ void Particle::draw(Graphics *restrict const,
void Particle::updateSelf() restrict2
{
- if (mLifetimeLeft == 0 && mAlive == AliveStatus::ALIVE)
- mAlive = AliveStatus::DEAD_TIMEOUT;
+ // calculate particle movement
+ if (mMomentum != 1.0F)
+ mVelocity *= mMomentum;
- if (mAlive == AliveStatus::ALIVE)
+ if (mTarget && mAcceleration != 0.0F)
{
- // calculate particle movement
- if (mMomentum != 1.0F)
- mVelocity *= mMomentum;
+ Vector dist = mPos - mTarget->mPos;
+ dist.x *= SIN45;
+ float invHypotenuse;
- if (mTarget && mAcceleration != 0.0F)
+ switch (ParticleEngine::fastPhysics)
{
- Vector dist = mPos - mTarget->mPos;
- dist.x *= SIN45;
- float invHypotenuse;
-
- switch (ParticleEngine::fastPhysics)
- {
- case 1:
- invHypotenuse = fastInvSqrt(
- dist.x * dist.x + dist.y * dist.y + dist.z * dist.z);
- break;
- case 2:
- if (!dist.x)
- {
- invHypotenuse = 0;
- break;
- }
-
- invHypotenuse = 2.0F / (static_cast<float>(fabs(dist.x))
- + static_cast<float>(fabs(dist.y))
- + static_cast<float>(fabs(dist.z)));
- break;
- default:
- invHypotenuse = 1.0F / static_cast<float>(sqrt(
- dist.x * dist.x + dist.y * dist.y + dist.z * dist.z));
+ case 1:
+ invHypotenuse = fastInvSqrt(
+ dist.x * dist.x + dist.y * dist.y + dist.z * dist.z);
+ break;
+ case 2:
+ if (!dist.x)
+ {
+ invHypotenuse = 0;
break;
- }
+ }
- if (invHypotenuse)
- {
- if (mInvDieDistance > 0.0F && invHypotenuse > mInvDieDistance)
- mAlive = AliveStatus::DEAD_IMPACT;
- const float accFactor = invHypotenuse * mAcceleration;
- mVelocity -= dist * accFactor;
- }
+ invHypotenuse = 2.0F / (static_cast<float>(fabs(dist.x))
+ + static_cast<float>(fabs(dist.y))
+ + static_cast<float>(fabs(dist.z)));
+ break;
+ default:
+ invHypotenuse = 1.0F / static_cast<float>(sqrt(
+ dist.x * dist.x + dist.y * dist.y + dist.z * dist.z));
+ break;
}
- if (mRandomness > 0)
+ if (invHypotenuse)
{
- mVelocity.x += static_cast<float>((rand() % mRandomness - rand()
- % mRandomness)) / 1000.0F;
- mVelocity.y += static_cast<float>((rand() % mRandomness - rand()
- % mRandomness)) / 1000.0F;
- mVelocity.z += static_cast<float>((rand() % mRandomness - rand()
- % mRandomness)) / 1000.0F;
+ if (mInvDieDistance > 0.0F && invHypotenuse > mInvDieDistance)
+ mAlive = AliveStatus::DEAD_IMPACT;
+ const float accFactor = invHypotenuse * mAcceleration;
+ mVelocity -= dist * accFactor;
}
+ }
+
+ if (mRandomness > 0)
+ {
+ mVelocity.x += static_cast<float>((rand() % mRandomness - rand()
+ % mRandomness)) / 1000.0F;
+ mVelocity.y += static_cast<float>((rand() % mRandomness - rand()
+ % mRandomness)) / 1000.0F;
+ mVelocity.z += static_cast<float>((rand() % mRandomness - rand()
+ % mRandomness)) / 1000.0F;
+ }
- mVelocity.z -= mGravity;
+ mVelocity.z -= mGravity;
- // Update position
- mPos.x += mVelocity.x;
- mPos.y += mVelocity.y * SIN45;
- mPos.z += mVelocity.z * SIN45;
+ // Update position
+ mPos.x += mVelocity.x;
+ mPos.y += mVelocity.y * SIN45;
+ mPos.z += mVelocity.z * SIN45;
- // Update other stuff
- if (mLifetimeLeft > 0)
- mLifetimeLeft--;
+ // Update other stuff
+ if (mLifetimeLeft > 0)
+ mLifetimeLeft--;
- mLifetimePast++;
+ mLifetimePast++;
- if (mPos.z < 0.0F)
+ if (mPos.z < 0.0F)
+ {
+ if (mBounce > 0.0F)
{
- if (mBounce > 0.0F)
- {
- mPos.z *= -mBounce;
- mVelocity *= mBounce;
- mVelocity.z = -mVelocity.z;
- }
- else
- {
- mAlive = AliveStatus::DEAD_FLOOR;
- }
+ mPos.z *= -mBounce;
+ mVelocity *= mBounce;
+ mVelocity.z = -mVelocity.z;
}
- else if (mPos.z > ParticleEngine::PARTICLE_SKY)
+ else
{
- mAlive = AliveStatus::DEAD_SKY;
+ mAlive = AliveStatus::DEAD_FLOOR;
}
+ }
+ else if (mPos.z > ParticleEngine::PARTICLE_SKY)
+ {
+ mAlive = AliveStatus::DEAD_SKY;
+ }
- // Update child emitters
- if (ParticleEngine::emitterSkip &&
- (mLifetimePast - 1) % ParticleEngine::emitterSkip == 0)
+ // Update child emitters
+ if (ParticleEngine::emitterSkip &&
+ (mLifetimePast - 1) % ParticleEngine::emitterSkip == 0)
+ {
+ FOR_EACH (EmitterConstIterator, e, mChildEmitters)
{
- FOR_EACH (EmitterConstIterator, e, mChildEmitters)
+ std::vector<Particle*> newParticles;
+ (*e)->createParticles(mLifetimePast, newParticles);
+ FOR_EACH (std::vector<Particle*>::const_iterator,
+ it,
+ newParticles)
{
- std::vector<Particle*> newParticles;
- (*e)->createParticles(mLifetimePast, newParticles);
- FOR_EACH (std::vector<Particle*>::const_iterator,
- it,
- newParticles)
- {
- Particle *const p = *it;
- p->moveBy(mPos);
- mChildParticles.push_back(p);
- }
+ Particle *const p = *it;
+ p->moveBy(mPos);
+ mChildParticles.push_back(p);
}
}
}
@@ -243,51 +237,62 @@ bool Particle::update() restrict2
{
const Vector oldPos = mPos;
- if (mAnimation)
+ if (mAlive == AliveStatus::ALIVE)
{
- if (mType == ParticleType::Animation)
+ if (mLifetimeLeft == 0)
{
- // particle engine is updated every 10ms
- mAnimation->update(10);
+ mAlive = AliveStatus::DEAD_TIMEOUT;
}
- else // ParticleType::Rotational
+ else
{
- // TODO: cache velocities to avoid spamming atan2()
- const int size = mAnimation->getLength();
- if (!size)
- return false;
+ if (mAnimation)
+ {
+ if (mType == ParticleType::Animation)
+ {
+ // particle engine is updated every 10ms
+ mAnimation->update(10);
+ }
+ else // ParticleType::Rotational
+ {
+ // TODO: cache velocities to avoid spamming atan2()
+ const int size = mAnimation->getLength();
+ if (!size)
+ return false;
- float rad = static_cast<float>(atan2(mVelocity.x, mVelocity.y));
- if (rad < 0)
- rad = PI2 + rad;
+ float rad = static_cast<float>(atan2(mVelocity.x,
+ mVelocity.y));
+ if (rad < 0)
+ rad = PI2 + rad;
- const float range = static_cast<const float>(PI / size);
+ const float range = static_cast<const float>(PI / size);
- // Determines which frame the particle should play
- if (rad < range || rad > PI2 - range)
- {
- mAnimation->setFrame(0);
- }
- else
- {
- const float range2 = 2 * range;
- for (int c = 1; c < size; c++)
- {
- const float cRange = static_cast<float>(c) * range2;
- if (cRange - range < rad &&
- rad < cRange + range)
+ // Determines which frame the particle should play
+ if (rad < range || rad > PI2 - range)
{
- mAnimation->setFrame(c);
- break;
+ mAnimation->setFrame(0);
+ }
+ else
+ {
+ const float range2 = 2 * range;
+ for (int c = 1; c < size; c++)
+ {
+ const float cRange = static_cast<float>(c) *
+ range2;
+ if (cRange - range < rad &&
+ rad < cRange + range)
+ {
+ mAnimation->setFrame(c);
+ break;
+ }
+ }
}
}
+ mImage = mAnimation->getCurrentImage();
}
+ updateSelf();
}
- mImage = mAnimation->getCurrentImage();
}
- updateSelf();
-
const Vector change = mPos - oldPos;
if (mChildParticles.empty())
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-14 05:30:34 +0000