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| author | Andrei Karas <akaras@inbox.ru> | 2016-03-18 18:27:27 +0300 |
|---|---|---|
| committer | Andrei Karas <akaras@inbox.ru> | 2016-03-18 18:27:27 +0300 |
| commit | cc6b5ebf94ad24180a4db69aa87cae07e3c876d2 (patch) | |
| tree | 3728c0cba25aa488a1a3be36d0b528fffb190404 | |
| parent | 3632ab0a66bd3a14c8848982b15bfa30715dded7 (diff) | |
| download | mv-cc6b5ebf94ad24180a4db69aa87cae07e3c876d2.tar.gz mv-cc6b5ebf94ad24180a4db69aa87cae07e3c876d2.tar.bz2 mv-cc6b5ebf94ad24180a4db69aa87cae07e3c876d2.tar.xz mv-cc6b5ebf94ad24180a4db69aa87cae07e3c876d2.zip | |
Reduce number of rand() calls in Particle::update.
| -rw-r--r-- | src/particle/particle.cpp | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/src/particle/particle.cpp b/src/particle/particle.cpp index 425be6c91..aeb79a1b1 100644 --- a/src/particle/particle.cpp +++ b/src/particle/particle.cpp @@ -160,12 +160,13 @@ void Particle::updateSelf() restrict2 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; + const int rand2 = mRandomness * 2; + mVelocity.x += static_cast<float>(rand() % rand2 - mRandomness) + / 1000.0F; + mVelocity.y += static_cast<float>(rand() % rand2 - mRandomness) + / 1000.0F; + mVelocity.z += static_cast<float>(rand() % rand2 - mRandomness) + / 1000.0F; } mVelocity.z -= mGravity; |