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//
// GCControllerButtonInput.h
// GameController
//
// Copyright (c) 2012 Apple Inc. All rights reserved.
//
#import "GameController.h"
GAMECONTROLLER_EXPORT
@interface GCControllerButtonInput : GCControllerElement
/**
Set this block if you want to be notified when the value on this button changes.
@param button the element that has been modified.
@param value the value the button was set to at the time the valueChangedHandler fired.
@param pressed the pressed state of the button at the time the valueChangedHandler fired.
*/
typedef void (^GCControllerButtonValueChangedHandler)(GCControllerButtonInput *button, float value, BOOL pressed);
@property (copy) GCControllerButtonValueChangedHandler valueChangedHandler;
/**
A normalized value for the input. Between 0 and 1 for button inputs. Values are saturated and thus never exceed the range of [0, 1].
*/
@property (readonly) float value;
/**
Buttons are mostly used in a digital sense, thus we have a recommended method for checking for pressed state instead of
interpreting the value.
As a general guideline a button is pressed if the value exceeds 25%. However there may be hysterisis applied
to counter noisy input values, thus incidental values around the threshold value may not trigger a change
in pressed state.
*/
@property (readonly, getter = isPressed) BOOL pressed;
@end
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