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https://github.com/wpilibsuite/allwpilib
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3cd1253977
Years update, references to WIND_BASE were removed, and WPILib license was moved to the root directory of the project. If there was already a comment block, a year range through 2016 was created using the first year in the comment. If there was no comment block, a block with just the year 2016 was added. Comments were not added to files from external sources (NI, CTRE). Change-Id: Iff4f098ab908b90b8d929902dea903de2f596acc
36 lines
1.2 KiB
C++
36 lines
1.2 KiB
C++
/*----------------------------------------------------------------------------*/
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/* Copyright (c) FIRST 2008-2016. All Rights Reserved. */
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/* Open Source Software - may be modified and shared by FRC teams. The code */
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/* must be accompanied by the FIRST BSD license file in the root directory of */
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/* the project. */
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/*----------------------------------------------------------------------------*/
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#pragma once
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/**
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* Interface for counting the number of ticks on a digital input channel.
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* Encoders, Gear tooth sensors, and counters should all subclass this so it can be used to
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* build more advanced classes for control and driving.
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*
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* All counters will immediately start counting - Reset() them if you need them
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* to be zeroed before use.
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*/
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class CounterBase
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{
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public:
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enum EncodingType
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{
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k1X,
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k2X,
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k4X
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};
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virtual ~CounterBase() = default;
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virtual int32_t Get() const = 0;
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virtual void Reset() = 0;
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virtual double GetPeriod() const = 0;
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virtual void SetMaxPeriod(double maxPeriod) = 0;
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virtual bool GetStopped() const = 0;
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virtual bool GetDirection() const = 0;
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};
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