spawnRandomParticle()

void fl::Particles1d::spawnRandomParticle

(

)

Spawn a particle with random position, velocity, color, and lifetime.

Spawning behavior:

• First tries to find an inactive particle slot
• If all slots are full, replaces the oldest particle by birthTime

Note

Call this from your loop() based on desired spawn rate (e.g., every 2 seconds)

Spawn control is intentionally external for flexibility (music-reactive, triggers, etc.)

Definition at line 42 of file particles.cpp.hpp.

                                      {
    // First, try to find an inactive particle
    for (size_t i = 0; i < mParticles.size(); i++) {
        if (!mParticles[i].active) {
            mParticles[i].spawn(mNumLeds);
            return;
        }
    }
 
    // All slots full - find and reuse the oldest particle
    size_t oldestIdx = 0;
    u32 oldestTime = mParticles[0].birthTime;
    for (size_t i = 1; i < mParticles.size(); i++) {
        if (mParticles[i].birthTime < oldestTime) {
            oldestTime = mParticles[i].birthTime;
            oldestIdx = i;
        }
    }
    mParticles[oldestIdx].spawn(mNumLeds);
}

References fl::Fx::mNumLeds, and mParticles.

Referenced by ~Particles1d().

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