Refactored everything.

include/okapi/api/device/button/abstractButton.hpp

@@ -0,0 +1,46 @@
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+#pragma once
+
+#include "okapi/api/control/controllerInput.hpp"
+
+namespace okapi {
+class AbstractButton : public ControllerInput<bool> {
+  public:
+  virtual ~AbstractButton();
+
+  /**
+   * Return whether the button is currently pressed.
+   **/
+  virtual bool isPressed() = 0;
+
+  /**
+   * Return whether the state of the button changed since the last time this method was
+   * called.
+   **/
+  virtual bool changed() = 0;
+
+  /**
+   * Return whether the state of the button changed to being pressed since the last time this method
+   * was called.
+   **/
+  virtual bool changedToPressed() = 0;
+
+  /**
+   * Return whether the state of the button to being not pressed changed since the last time this
+   * method was called.
+   **/
+  virtual bool changedToReleased() = 0;
+
+  /**
+   * Get the sensor value for use in a control loop. This method might be automatically called in
+   * another thread by the controller.
+   *
+   * @return the current sensor value. This is the same as the output of the pressed() method.
+   */
+  virtual bool controllerGet() override;
+};
+} // namespace okapi

include/okapi/api/device/button/buttonBase.hpp

@@ -0,0 +1,52 @@
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+#pragma once
+
+#include "okapi/api/device/button/abstractButton.hpp"
+
+namespace okapi {
+class ButtonBase : public AbstractButton {
+  public:
+  /**
+   * @param iinverted Whether the button is inverted (`true` meaning default pressed and `false`
+   * meaning default not pressed).
+   */
+  explicit ButtonBase(bool iinverted = false);
+
+  /**
+   * Return whether the button is currently pressed.
+   **/
+  bool isPressed() override;
+
+  /**
+   * Return whether the state of the button changed since the last time this method was called.
+   **/
+  bool changed() override;
+
+  /**
+   * Return whether the state of the button changed to pressed since the last time this method was
+   *called.
+   **/
+  bool changedToPressed() override;
+
+  /**
+   * Return whether the state of the button to not pressed since the last time this method was
+   *called.
+   **/
+  bool changedToReleased() override;
+
+  protected:
+  bool inverted{false};
+  bool wasPressedLast_c{false};
+  bool wasPressedLast_ctp{false};
+  bool wasPressedLast_ctr{false};
+
+  virtual bool currentlyPressed() = 0;
+
+  private:
+  bool changedImpl(bool &prevState);
+};
+} // namespace okapi