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@ -46,7 +46,7 @@ class Buzzer { |
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private: |
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private: |
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struct state_t { |
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struct state_t { |
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tone_t tone; |
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tone_t tone; |
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uint32_t timestamp; |
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uint32_t endtime; |
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} state; |
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} state; |
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protected: |
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protected: |
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@ -82,7 +82,7 @@ class Buzzer { |
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*/ |
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*/ |
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void reset() { |
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void reset() { |
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this->off(); |
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this->off(); |
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this->state.timestamp = 0; |
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this->state.endtime = 0; |
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} |
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} |
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public: |
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public: |
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@ -97,7 +97,7 @@ class Buzzer { |
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/**
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/**
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* @brief Add a tone to the queue |
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* @brief Add a tone to the queue |
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* @details Adds a tone_t structure to the ring buffer, will block IO if the |
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* @details Adds a tone_t structure to the ring buffer, will block IO if the |
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* queue is full waiting for one slot to get available. |
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* queue is full waiting for one slot to get available. |
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* |
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* |
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* @param duration Duration of the tone in milliseconds |
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* @param duration Duration of the tone in milliseconds |
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* @param frequency Frequency of the tone in hertz |
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* @param frequency Frequency of the tone in hertz |
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@ -114,17 +114,17 @@ class Buzzer { |
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/**
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/**
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* @brief Loop function |
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* @brief Loop function |
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* @details This function should be called at loop, it will take care of |
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* @details This function should be called at loop, it will take care of |
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* playing the tones in the queue. |
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* playing the tones in the queue. |
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*/ |
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*/ |
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virtual void tick() { |
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virtual void tick() { |
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if (!this->state.timestamp) { |
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if (!this->state.endtime) { |
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if (this->buffer.isEmpty()) return; |
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if (this->buffer.isEmpty()) return; |
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this->state.tone = this->buffer.dequeue(); |
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this->state.tone = this->buffer.dequeue(); |
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this->state.timestamp = millis() + this->state.tone.duration; |
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this->state.endtime = millis() + this->state.tone.duration; |
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if (this->state.tone.frequency > 0) this->on(); |
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if (this->state.tone.frequency > 0) this->on(); |
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} |
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} |
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else if (ELAPSED(millis(), this->state.timestamp)) this->reset(); |
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else if (ELAPSED(millis(), this->state.endtime)) this->reset(); |
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} |
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} |
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}; |
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}; |
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