56 lines
1.1 KiB
C
56 lines
1.1 KiB
C
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// overall layout:
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// queue for each led stripe
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//
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enum class EffectID
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{
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OFF,
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STATIC,
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CIRCLE,
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CIRCLE_WAVE,
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COLOR_FADE,
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RAINBOW_FADE,
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};
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struct EffectCircularConfig
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{
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float speed; // in degrees per second
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float width; // width in degrees
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float brightnessFalloffFactor;
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};
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template <typename TLedStrip>
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class AbstractEffect
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{
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public:
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virtual int operator()(TLedStrip &s) = 0;
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};
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template <typename TLedStrip>
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class EffectCircle : public AbstractEffect<TLedStrip>
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{
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public:
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EffectCircle(const EffectCircularConfig &cfg) : config_(cfg) {}
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int operator()(TLedStrip &s) override;
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private:
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EffectCircularConfig config_;
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float currentPosition_; // between 0 and 1
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};
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unsigned char effectStorage[128];
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template <typename TLedStrip>
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AbstractEffect<TLedStrip> *makeEffect(const char *buffer)
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{
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const EffectID &effectId = *reinterpret_cast<const EffectID *>(buffer);
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if (effectId == EffectID::CIRCLE)
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{
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auto cfg = reinterpret_cast<const EffectCircularConfig *>(buffer + sizeof(EffectID));
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return new (effectStorage) EffectCircle<TLedStrip>(*cfg);
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}
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// read effect id code from buffer
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// read config from buffer
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}
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