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| author | Andrei Karas <akaras@inbox.ru> | 2016-03-18 18:27:27 +0300 |
|---|---|---|
| committer | Thorbjørn Lindeijer <bjorn@lindeijer.nl> | 2024-09-30 14:56:20 +0200 |
| commit | 5e465c8b260b1c906809fd288a19780581ae54f0 (patch) | |
| tree | 91afca6b6e6ff9ca33378ba6d06ce43e83c1546f | |
| parent | f7bccd4c7abe33c0f435a4c584d196d611f89674 (diff) | |
| download | mana-5e465c8b260b1c906809fd288a19780581ae54f0.tar.gz mana-5e465c8b260b1c906809fd288a19780581ae54f0.tar.bz2 mana-5e465c8b260b1c906809fd288a19780581ae54f0.tar.xz mana-5e465c8b260b1c906809fd288a19780581ae54f0.zip | |
Reduce number of rand() calls in Particle::update
(cherry picked from M+ commit cc6b5ebf94ad24180a4db69aa87cae07e3c876d2)
| -rw-r--r-- | src/particle.cpp | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/particle.cpp b/src/particle.cpp index 61290884..40a51888 100644 --- a/src/particle.cpp +++ b/src/particle.cpp @@ -136,9 +136,10 @@ bool Particle::update() if (mRandomness > 0) { - mVelocity.x += (rand()%mRandomness - rand()%mRandomness) / 1000.0f; - mVelocity.y += (rand()%mRandomness - rand()%mRandomness) / 1000.0f; - mVelocity.z += (rand()%mRandomness - rand()%mRandomness) / 1000.0f; + const int rand2 = mRandomness * 2; + mVelocity.x += (rand() % rand2 - mRandomness) / 1000.0f; + mVelocity.y += (rand() % rand2 - mRandomness) / 1000.0f; + mVelocity.z += (rand() % rand2 - mRandomness) / 1000.0f; } mVelocity.z -= mGravity; |