Arduino “having11” Guy
Created October 11, 2019 © GPL3+

Playing "Flappy Bird" on an LED Matrix

Use your hand to control the height of a pixel, and then navigate through a map full of obstacles to avoid. Get to the end to win!

IntermediateFull instructions provided4 hours1

Things used in this project

Hardware components

Arduino Mega 2560 & Genuino Mega 2560
Arduino Mega 2560 & Genuino Mega 2560
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SparkFun VL53L1X ToF (Time of Flight) Sensor
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SparkFun Logic Level Converter - Bi-Directional
SparkFun Logic Level Converter - Bi-Directional
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10A 5V Powersupply
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WS2812 Addressable LED Strip
Digilent WS2812 Addressable LED Strip
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20 x 15 Neopixel Matrix
Follow the directions here to build one: https://www.hackster.io/gatoninja236/building-a-large-neopixel-matrix-3cb62b
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Software apps and online services

Arduino IDE
Arduino IDE
VS Code
Microsoft VS Code
Python 3

Hand tools and fabrication machines

Soldering iron (generic)
Soldering iron (generic)

Story

Read more

Schematics

Flappy Bird Game

Code

Example Map Data FIle

C/C++
#ifndef _game_map_h_
#define _game_map_h_

#define MAP_W 200
#define MAP_H 15

static const uint8_t game_map_data[MAP_W * MAP_H] = {
//data goes here
//0 = clear path, 1 = obstruction to avoid
//The columns between MAP_W - MATRIX_W and MAP_W must be empty
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};

#endif

Example Loss Screen Data File

C/C++
#ifndef _game_loss_graphic_h_
#define _game_loss_graphic_h_

// Size of matrix; in this case, 20 x 15

static const uint32_t game_loss_graphic_data[] = {
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0xfa030f, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0xfa030f, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0xfa030f, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0xfa030f, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0xfa030f, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0xfa030f, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0xfa030f, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0xfa030f, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0xfa030f, 0x000000, 0x000000, 0x000000, 0x000000, 0xfa030f, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0xfa030f, 0xfa030f, 0xfa030f, 0xfa030f, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 
0x000000, 0xfa030f, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0xfa030f, 0xfa030f, 0x000000, 0x000000, 0x000000, 0xfa030f, 0xfa030f, 0xfa030f, 0x000000, 0xfa030f, 0xfa030f, 0xfa030f, 0x000000, 
0x000000, 0xfa030f, 0x000000, 0x000000, 0x000000, 0x000000, 0xfa030f, 0x000000, 0x000000, 0xfa030f, 0x000000, 0x000000, 0xfa030f, 0x000000, 0x000000, 0x000000, 0xfa030f, 0x000000, 0x000000, 0x000000, 
0x000000, 0xfa030f, 0x000000, 0x000000, 0x000000, 0x000000, 0xfa030f, 0x000000, 0x000000, 0xfa030f, 0x000000, 0x000000, 0xfa030f, 0xfa030f, 0xfa030f, 0x000000, 0xfa030f, 0xfa030f, 0xfa030f, 0x000000, 
0x000000, 0xfa030f, 0x000000, 0x000000, 0x000000, 0x000000, 0xfa030f, 0x000000, 0x000000, 0xfa030f, 0x000000, 0x000000, 0x000000, 0x000000, 0xfa030f, 0x000000, 0xfa030f, 0x000000, 0x000000, 0x000000, 
0x000000, 0xfa030f, 0xfa030f, 0xfa030f, 0x000000, 0x000000, 0x000000, 0xfa030f, 0xfa030f, 0x000000, 0x000000, 0x000000, 0xfa030f, 0xfa030f, 0xfa030f, 0x000000, 0xfa030f, 0xfa030f, 0xfa030f, 0x000000, 
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000

};

#endif

Flappy Bird Game

C/C++
#include <ComponentObject.h>
#include <RangeSensor.h>
#include <SparkFun_VL53L1X.h>
#include <vl53l1x_class.h>
#include <vl53l1_error_codes.h>
#include <Wire.h>
#include "SparkFun_VL53L1X.h"
#include <FastLED.h>

#include "game_map.h"
#include "game_win_graphic.h"
#include "game_loss_graphic.h"

#define PIXEL_PIN 2

#define MATRIX_W 20
#define MATRIX_H 15
#define TOTAL_PIXELS 300

#define PHYSICAL_H_MIN 100 // Min distance from sensor in mm
#define PHYSICAL_H_MAX 300 // Max distance from sensor in mm

#define playerColor 0xFFFF00 //Yellow
#define obstacleColor 0x00FF00 // Green
#define clearColor 0x00 // Black

SFEVL53L1X distance_sensor;
CRGB pixels[TOTAL_PIXELS];

#define UPS 4 //Number of updates per second
//#define UPDATE_RATE 5000
#define UPDATE_RATE 1000 / UPS //Delay in ms between game ticks 

bool win_lose = 0; // 1 for win, 0 for lose
int offset = 0, playerPos = MATRIX_H / 2;

void setup()
{
    Wire.begin();
    Serial.begin(115200);
    while (!Serial);
    Serial.println("I'm here");
    FastLED.addLeds<NEOPIXEL, PIXEL_PIN>(pixels, TOTAL_PIXELS);
    FastLED.setBrightness(40);
    for(int i=0; i < TOTAL_PIXELS; i++) pixels[i] = CRGB::Black;
    FastLED.show();
    if(distance_sensor.begin()){
      Serial.println("No sensor found");
      while(1);
    }
    Serial.println("Starting game");
    //display_loss();
    FastLED.show();
    FastLED.delay(5000);
}

void loop()
{
    offset = 0;
    playerPos = MATRIX_H / 2; //With a height of 15, the playerPos will be 7
    while(gameTick());
    if(win_lose) display_win();
    else display_loss();
    FastLED.show();
    while(play_again());
    for(int i=0; i < TOTAL_PIXELS; i++) pixels[i] = CRGB::Black;
    FastLED.show();
    FastLED.delay(2000);
}

bool play_again()
{
    int distance = updatePlayer();
    if(distance >= MATRIX_H-1) return 0; //Play again
    return 1;
}

void display_loss()
{
    for(int row=0; row < MATRIX_H; row++)
    {
        for(int col=0; col < MATRIX_W; col++)
        {
            
            uint32_t current_color = game_loss_graphic_data[row*MATRIX_W + col];
            pixels[XY(col, row)] = current_color;
        }
    }
}

void display_win()
{
    for(int row=0; row < MATRIX_H; row++)
    {
        for(int col=0; col < MATRIX_W; col++)
        {
            uint32_t current_color = game_win_graphic_data[row * MATRIX_W + col];
            pixels[XY(col, row)] = current_color;
        }
    }
}

bool gameTick()
{
    bool game_continue;
    playerPos = updatePlayer(); // Get value between 0 and 14
    //playerPos = 10;
    int playerArrayPos = playerPos * MAP_W + offset; // Player relative to map
    Serial.println(playerArrayPos);
    int playerMatrixPos = playerPos; // Player relative to matrix
    Serial.println(playerMatrixPos);
    game_continue = drawFrame(playerArrayPos); // Draw map frame and also check for collisions
    drawPlayer(playerMatrixPos);
    FastLED.show();
    FastLED.delay(UPDATE_RATE);
    offset++;
    //Serial.printf("Player Pos: %d | Offset: %d\n", playerPos, offset);
    return game_continue; // Normal continue condition
}

int updatePlayer()
{
    distance_sensor.startRanging();
    int distance = distance_sensor.getDistance(); //Distance in mm
    distance_sensor.stopRanging();
    distance = map(distance, PHYSICAL_H_MIN, PHYSICAL_H_MAX, MATRIX_H - 1, 0);
    distance = constrain(distance, 0, MATRIX_H - 1); // Keep values in range
    Serial.println(distance);
    return distance;
}

void drawPlayer(int p_pos)
{
    pixels[XY(0, p_pos)] = playerColor;
}

bool drawFrame(int p_pos)
{
    bool go = 1;
    if(offset >= MAP_W - MATRIX_W)
    {
        go = 0;
        win_lose = true; // Player has reached end of map
    }
    for(int row = 0; row < MATRIX_H; row++)
    {
        int row_offset = MAP_W * row;
        for(int col=row_offset+offset, pixel=0; col < row_offset + offset + MATRIX_W; col++, pixel++)
        {
            uint8_t pixel_val = game_map_data[col]; // Get value at location
            //Serial.printf("Pixel value at %d has value of %d and p_pos = %d\n", col, pixel_val, p_pos);
            if(pixel_val==1 && p_pos == col) //If player is in same spot as obstruction
            {
                win_lose = false; //Player has lost
                go = 0;
            }
            if(pixel_val) pixels[XY(pixel, row)] = obstacleColor;
            else pixels[XY(pixel, row)] = clearColor;
            //Serial.println(row * MATRIX_W + pixel);
        }
    }
    return go;
}

int XY(int x, int y)
{
    int i;
    if(y & 0x01)
    {
        uint8_t reverseX = (MATRIX_W - 1) - x;
        i = (y * MATRIX_W) + reverseX;
    }
    else
    {
        i = (y * MATRIX_W) + x;
    }
    return i;
}

Example Win Screen Data File

C/C++
#ifndef _game_win_graphic_h_
#define _game_win_graphic_h_

// Size of matrix; in this case, 20 x 15

static const uint32_t game_win_graphic_data[] = {
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x03fa43, 0x000000, 0x000000, 0x000000, 0x000000, 0x03fa43, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x03fa43, 0x000000, 0x000000, 0x000000, 0x000000, 0x03fa43, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x03fa43, 0x000000, 0x000000, 0x000000, 0x000000, 0x03fa43, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x03fa43, 0x03fa43, 0x000000, 0x000000, 0x03fa43, 0x03fa43, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x03fa43, 0x03fa43, 0x03fa43, 0x03fa43, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 
0x000000, 0x03fa43, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x03fa43, 0x000000, 0x000000, 0x03fa43, 0x000000, 0x000000, 0x03fa43, 0x000000, 0x000000, 0x000000, 0x03fa43, 0x000000, 0x000000, 
0x000000, 0x03fa43, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x03fa43, 0x000000, 0x000000, 0x03fa43, 0x000000, 0x000000, 0x03fa43, 0x03fa43, 0x000000, 0x000000, 0x03fa43, 0x000000, 0x000000, 
0x000000, 0x03fa43, 0x000000, 0x000000, 0x03fa43, 0x000000, 0x000000, 0x03fa43, 0x000000, 0x000000, 0x03fa43, 0x000000, 0x000000, 0x03fa43, 0x000000, 0x03fa43, 0x000000, 0x03fa43, 0x000000, 0x000000, 
0x000000, 0x03fa43, 0x000000, 0x03fa43, 0x000000, 0x03fa43, 0x000000, 0x03fa43, 0x000000, 0x000000, 0x03fa43, 0x000000, 0x000000, 0x03fa43, 0x000000, 0x000000, 0x03fa43, 0x03fa43, 0x000000, 0x000000, 
0x000000, 0x03fa43, 0x03fa43, 0x000000, 0x000000, 0x000000, 0x03fa43, 0x000000, 0x000000, 0x000000, 0x03fa43, 0x000000, 0x000000, 0x03fa43, 0x000000, 0x000000, 0x000000, 0x03fa43, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000

};

#endif

Image to Data Converter

Python
Run with command line and use flags to control what is outputted
from PIL import Image
import argparse

ap = argparse.ArgumentParser()
ap.add_argument("-n", "--im-name", required=True, help="Name of image to convert")
ap.add_argument("-o", "--output", required=True, help="Name of file to output array")
ap.add_argument("-m", "--map", action='store_true', help="Configure program to output either 1 or 0 for game maps", dest='is_map', default=False)
args = vars(ap.parse_args())

im = Image.open(args["im_name"])

im_size = im.size
print("You selected the map creation function.")
print("Now converting {0} with size of {1} by {2} to a C-style array, outputting to file: {3}".format(args["im_name"], im_size[0], im_size[1], args["output"]))

pixel_data = im.load()

output_file = open(args["output"], 'w+')

for row in range(im_size[1]):
    for column in range(im_size[0]):
        pixel_val = pixel_data[column, row]
        #print(pixel_val)
        if args["is_map"]:
            element_str = '{:02x}'
            if pixel_val[0] >= 1:
                pixel_val = [1]
            else:
                pixel_val = [0]
        else:
            element_str = len(pixel_val) * '{:02x}'
        if row == im_size[1] - 1 and column == im_size[0] - 1:
            element_str = "0x" + element_str.format(*pixel_val)
        else:
            element_str = "0x" + element_str.format(*pixel_val) + ", "
        output_file.write(element_str)
    output_file.write('\n')

print("Image converted successfully.")

Credits

Arduino “having11” Guy

Arduino “having11” Guy

65 projects • 368 followers
IoT and embedded systems enthusiast. Also an intern at Hackster.io who loves working on projects and sharing knowledge.

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