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TinyJoypadUtils.h
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TinyJoypadUtils.h
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#pragma once
#include <Arduino.h>
#if defined( __AVR_ATtiny85__)
// required for _delay_us()
#include <util/delay.h>
#else
#define _delay_ms delay
#define _delay_us delayMicroseconds
#endif
////////////////////////////////////////////////////////////
// Uncomment the following line if you are using the old function naming convention
// where all function names were starting with 'TinyFlip_'
//#define ENABLE_OLD_TINYFLIP_NAMING_CONVENTION
////////////////////////////////////////////////////////////
// Uncomment the following line to activate SH1106 support
//#define _USE_SH1106_
////////////////////////////////////////////////////////////
// Uncomment the following line to enable serial screenshot
//#define _ENABLE_SERIAL_SCREENSHOT_
// perform a serial screenshot if this condition is true:
#define _SERIAL_SCREENSHOT_TRIGGER_CONDITION_ ( isFirePressed() )
// uncomment to disable automatic screenshot function
//#define _SERIAL_SCREENSHOT_NO_AUTO_SHOT_
////////////////////////////////////////////////////////////
// Pin definitions for the joystick and the fire button
#if defined(__AVR_ATtiny85__)
// don't change these (or you won't support TinyJoypad anymore!)
#define LEFT_RIGHT_BUTTON A0
#define UP_DOWN_BUTTON A3
#define FIRE_BUTTON 1
#define SOUND_PIN 4
#define SOUND_PORT_DDR DDRB
#define SOUND_PORT PORTB
// disable extended features
#undef USE_EXTENDED_CHECKS
#undef USE_SERIAL_PRINT
// Analog limits for joystick control (controller/voltage dependent)
const uint16_t ANALOG_LOWER_LIMIT_MIN = 500;
const uint16_t ANALOG_LOWER_LIMIT_MAX = 750;
const uint16_t ANALOG_UPPER_LIMIT_MIN = 750;
const uint16_t ANALOG_UPPER_LIMIT_MAX = 950;
#else
#if defined(__AVR_ATmega2560__) || defined(__AVR_ATmega32U4__) || defined(__AVR_ATmega328P__) || defined(_VARIANT_ARDUINO_ZERO_) || defined(ARDUINO_UNOWIFIR4) || defined(ARDUINO_UNOR4_MINIMA)
// Arduino Mega 2560 (and compatible)
#define LEFT_RIGHT_BUTTON A0
#define UP_DOWN_BUTTON A3
#define FIRE_BUTTON A1
#define SOUND_PIN 12
#else
// change these definitions as required
#define LEFT_RIGHT_BUTTON A0
#define UP_DOWN_BUTTON A3
#define FIRE_BUTTON A1
#define SOUND_PIN 4
#define SOUND_PORT_DDR DDRB
#define SOUND_PORT PORTB
#endif
// Analog limits for joystick control (controller/voltage dependent)
#if defined(__AVR_ATmega2560__) || defined(__AVR_ATmega32U4__) || defined(__AVR_ATmega328P__)
const uint16_t ANALOG_LOWER_LIMIT_MIN = 500;
const uint16_t ANALOG_LOWER_LIMIT_MAX = 750;
const uint16_t ANALOG_UPPER_LIMIT_MIN = 750;
const uint16_t ANALOG_UPPER_LIMIT_MAX = 950;
#elif defined(_VARIANT_ARDUINO_ZERO_)
const uint16_t ANALOG_LOWER_LIMIT_MIN = 500;
const uint16_t ANALOG_LOWER_LIMIT_MAX = 750;
const uint16_t ANALOG_UPPER_LIMIT_MIN = 750;
const uint16_t ANALOG_UPPER_LIMIT_MAX = 950;
#elif defined(ARDUINO_UNOWIFIR4) || defined(ARDUINO_UNOR4_MINIMA)
const uint16_t ANALOG_LOWER_LIMIT_MIN = 300;
const uint16_t ANALOG_LOWER_LIMIT_MAX = 540;
const uint16_t ANALOG_UPPER_LIMIT_MIN = 540;
const uint16_t ANALOG_UPPER_LIMIT_MAX = 650;
#else
const uint16_t ANALOG_LOWER_LIMIT_MIN = 500;
const uint16_t ANALOG_LOWER_LIMIT_MAX = 750;
const uint16_t ANALOG_UPPER_LIMIT_MIN = 750;
const uint16_t ANALOG_UPPER_LIMIT_MAX = 950;
#endif
// use extensive checks (not memory restricted by ATtiny85...)
#define USE_EXTENDED_CHECKS
#define USE_SERIAL_PRINT
#endif
// funciton for initializing the TinyJoypad (ATtiny85) and other microcontrollers
void InitTinyJoypad();
// function for direct joystick readings
bool isLeftPressed();
bool isRightPressed();
bool isUpPressed();
bool isDownPressed();
bool isFirePressed();
void waitUntilButtonsReleased();
void waitUntilButtonsReleased( const uint8_t delayTime );
// read analog joystick inputs into internal variables
void readAnalogJoystick();
// functions for working on buffered joystick readings
bool wasLeftPressed();
bool wasRightPressed();
bool wasUpPressed();
bool wasDownPressed();
// returns the analog values
uint16_t getAnalogValueX();
uint16_t getAnalogValueY();
void __attribute__ ((noinline)) _variableDelay_us( uint8_t delayValue );
void Sound( const uint8_t freq, const uint8_t dur );
// functions to simplify display handling between ATtiny85 and Ardafruit_SSD1306
void InitDisplay();
void PrepareDisplayRow( uint8_t y );
void SendPixels( uint8_t pixels );
void FinishDisplayRow();
void DisplayBuffer();
// screenshot functions
void SerialScreenshot();
void CheckForSerialScreenshot();
#ifdef ENABLE_OLD_TINYFLIP_NAMING_CONVENTION
#define TinyFlip_PrepareDisplayRow PrepareDisplayRow
#define TinyFlip_SendPixels SendPixels
#define TinyFlip_FinishDisplayRow FinishDisplayRow
#define TinyFlip_DisplayBuffer DisplayBuffer
#define TinyFlip_SerialScreenshot SerialScreenshot
#define TinyFlip_CheckForSerialScreenshot CheckForSerialScreenshot
#endif
// serial output without clustering the code with #if !defined(__AVR_ATtiny85__)...
void serialPrint( const char *text );
void serialPrintln( const char *text );
void serialPrint( const __FlashStringHelper *text );
void serialPrintln( const __FlashStringHelper *text );
void serialPrint( const unsigned int number );
void serialPrintln( const unsigned int number );
void serialPrint( const int number );
void serialPrintln( const int number );