CLK/Machines/Apple/Macintosh/DriveSpeedAccumulator.hpp

//
//  DriveSpeedAccumulator.hpp
//  Clock Signal
//
//  Created by Thomas Harte on 01/06/2019.
//  Copyright © 2019 Thomas Harte. All rights reserved.
//

#pragma once

#include <array>
#include <cstddef>
#include <cstdint>

namespace Apple::Macintosh {

class DriveSpeedAccumulator {
public:
	/*!
		Accepts fetched motor control values.
	*/
	void post_sample(uint8_t sample);

	struct Delegate {
		virtual void drive_speed_accumulator_set_drive_speed(DriveSpeedAccumulator *, float speed) = 0;
	};
	/*!
		Sets the delegate to receive drive speed changes.
	*/
	void set_delegate(Delegate *delegate) {
		delegate_ = delegate;
	}

private:
	static constexpr int samples_per_bucket = 20;
	int sample_count_ = 0;
	int sample_total_ = 0;
	Delegate *delegate_ = nullptr;
};

}