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Previously, we talked about Nokia 5110 wiring details. Here is circuit diagram and code to play Nokia 5110 Arduino Snake Game. This Snake is like original Nokia Mobile’s famous Snake II game. Nokia 5110 is a versatile LCD display and capable to perform almost everything. The basic problem is inconsistent quality of these Nokia 5110 LCDs – these are refurbished from 2 decade old thrown away mobile phones.
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This thing we have not coded but we found from a GitHub repo, from there we got the original creator website gameinstance.com. The game is a single player game, uses two buttons for turning left and turning right like Nokia 3310 game. You are snake controller who will eat up randomly appearing foods. More food your snake will eat, longer the snake will become. If the snake touches itself or the boundary then game is over. Simple game :)
Nokia 5110 Arduino Snake Game
Apart from Arduino, we need 3 push buttons, one breadboard and few resistors. Here is the original Arduino code file on Github :
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https://github.com/gameinstance/app-arduino/blob/master/SnakeOnArduino.ino |
Obviously the setup is like our guide on how to setup Nokia 5110 display, but it is practical to look at the original developer’s website for wiring :
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https://www.gameinstance.com/post/15/The-Snake-game-for-Arduino |
Also, here is the code :
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/* * The Snake game for Arduino * * GameInstance.com * 2016 */ #include <SPI.h> #include <LCDNokia5100.h> /* * Snake block * * An element of the snake body */ class Block { public: /// default constructor Block() { // m_x = 0; m_y = 0; m_d = 0; }; /// parametric constructor Block(byte x, byte y, byte d) { // m_x = x; m_y = y; m_d = d; }; /// destructor virtual ~Block() {}; /// the block coordinates byte m_x, m_y; /// the block's direction [1-4] with 0 meaning null byte m_d; }; /* * Snake food item * */ class Food { public: /// default constructor Food() { // m_x = m_y = m_index = 0; }; /// destructor virtual ~Food() {}; /// generates random x,y coordinates for this /// not really working unless a noisy analog input is used for seeding void Random(byte width, byte height, byte weight) { // m_x = weight * random((width - 2) / weight) + 1; m_y = weight * random((height - 2) / weight) + 1; }; /// generates the next x,y pair from a predetermined array of ints bool Next(byte width, byte height, byte weight) { // m_x = weight * (m_Points[m_index] % ((width - 2) / weight)) + 1; m_y = weight * (m_Points[m_index] % ((height - 2) / weight)) + 1; m_index ++; if (m_index >= 10 - 1) { // m_index = 0; return false; } return true; }; /// draws this onto a given LCD display void Draw(LCDNokia5100 &lcd, byte weight) { // lcd.Rect(m_x, m_y, m_x + weight, m_y + weight - 1, true, true); }; /// the food coordinates byte m_x, m_y; /// the index in the array byte m_index; /// a predetermined array used for generating on-screen coordinates unsigned int m_Points[10] = {1301, 2392, 4812, 9831, 6127, 9928, 3123, 4123, 6512, 4812}; }; /* * The snake * */ class Snake { public: /// the maximum length of the snake static const byte BLOCK_COUNT_MAX = 20; /// default constructor Snake() { // m_Size = 0; m_HeadX = 31; m_HeadY = 31; m_Speed = 1; m_Direction = 2; m_Weight = 1; m_bSelfTouch = false; memset(m_Blocks, 0, BLOCK_COUNT_MAX * sizeof(Block)); }; /// destructor virtual ~Snake() { // for (byte i = 0; i < m_Size; i ++) { // delete m_Blocks[i]; } }; /// sets the weight of the snake void SetWeight(byte w) { // m_Weight = w; }; /// adds a block at the end of the snake void AddBlock() { // byte dx, dy; if (m_Size == 0) { // first block to be added m_Blocks[m_Size] = new Block(m_HeadX, m_HeadY, m_Direction); } else { // not the first block added GetDirection(dx, dy, m_Blocks[m_Size - 1]->m_d); m_Blocks[m_Size] = new Block(m_Blocks[m_Size - 1]->m_x + dx * m_Weight, m_Blocks[m_Size - 1]->m_y + dy * m_Weight, m_Blocks[m_Size - 1]->m_d); } m_Size ++; }; /// executes the slithering movement void Execute(byte dt = 1) { // byte dx, dy; for (byte i = 0; i < m_Size; i ++) { // GetDirection(dx, dy, m_Blocks[i]->m_d); m_Blocks[i]->m_x -= m_Speed * dt * dx * m_Weight; m_Blocks[i]->m_y -= m_Speed * dt * dy * m_Weight; } m_HeadX = m_Blocks[0]->m_x; m_HeadY = m_Blocks[0]->m_y; for (byte i = m_Size - 1; i > 0; i --) { // m_Blocks[i]->m_d = m_Blocks[i - 1]->m_d; if ((m_HeadX == m_Blocks[i]->m_x) && (m_HeadY == m_Blocks[i]->m_y)) { // snake head touches own body m_bSelfTouch = true; } } m_Blocks[0]->m_d = m_Direction; }; /// sets the snake's direction void SetDirection(byte d) { // if (m_Direction == d) { // no direction change return; } // direction has changed m_Direction = d; }; /// turns the snake left or right void Turn(byte right = 1) { // byte d = m_Direction; d += right; if (d > 4) { // d = 1; } else if (d < 1) { // d = 4; } SetDirection(d); }; /// draws the snake onto the LCD void Draw(LCDNokia5100 &lcd) { // for (byte i = 0; i < m_Size; i ++) { // lcd.Rect(m_Blocks[i]->m_x, m_Blocks[i]->m_y, m_Blocks[i]->m_x + m_Weight, m_Blocks[i]->m_y + m_Weight - 1, true, true); } }; /// speed of the snake and direction of the head byte m_Speed, m_Direction; /// the length of the snake and the size of the block element byte m_Size, m_Weight; /// snake's head coordinates byte m_HeadX, m_HeadY; /// head touching body indicator bool m_bSelfTouch; private: /// gets the (x, y) direction given the modeled direction void GetDirection(byte &dx, byte &dy, byte d) { // dx = (d == 2) ? 1 : ((d == 4) ? -1 : 0); dy = (d == 3) ? 1 : ((d == 1) ? -1 : 0); }; /// the array of blocks forming the snake boby Block* m_Blocks[BLOCK_COUNT_MAX]; }; /* * The main game class * */ class Game { public: /// the display width in pixels static const byte WIDTH = 84; /// the display height in pixels static const byte HEIGHT = 48; /// the number of buttons in use static const byte BUTTON_COUNT = 2; /// the size of the snake block static const byte WEIGHT = 2; /// default constructor Game() { // m_state = 0; }; /// destructor virtual ~Game() { // }; /// generates an arbitrary game configuration void Setup() { // m_s.SetWeight(WEIGHT); for (byte i = 0; i < 9; i ++) { // m_s.AddBlock(); } //randomSeed(analogRead(A5)); m_f.Next(WIDTH, HEIGHT, WEIGHT); for (byte i = 0; i < BUTTON_COUNT; i ++) { // m_bPress[i] = false; } m_lcd.Start(); m_lcd.Contrast(45); m_lcd.Light(); m_lcd.Fill(false); m_lcd.Text("GameInstance", 8, 8, true); m_lcd.Text(".com", 30, 16, true); m_lcd.Text("The Snake", 12, 32, true); m_lcd.Update(); m_delay = 200; delay(1000); }; /// the game state machine void Execute() { // if (m_state == 0) { // game start m_state = 1; } if (m_state == 1) { // game on if (WasPressed(A0, 0)) { // m_s.Turn(1); } if (WasPressed(A1, 1)) { // m_s.Turn(-1); } m_s.Execute(); Draw(); if ((m_s.m_HeadX == m_f.m_x) && (m_s.m_HeadY == m_f.m_y)) { // m_state = 2; } else { // if ((m_s.m_HeadX < 1) || (m_s.m_HeadX > WIDTH - 2) || (m_s.m_HeadY < 1) || (m_s.m_HeadY > HEIGHT - 2)) { // m_state = 10; } if (m_s.m_bSelfTouch) { // m_state = 10; } } } if (m_state == 2) { // food eaten m_s.AddBlock(); if (!m_f.Next(WIDTH, HEIGHT, WEIGHT)) { // m_state = 5; } else { // m_state = 1; } } if (m_state == 5) { // game complete m_lcd.Fill(false); m_lcd.Text("Congrats!", 14, 8, true); m_lcd.Text("press reset", 8, 32, true); m_lcd.Update(); m_state = 11; } if (m_state == 10) { // game over m_lcd.Fill(false); m_lcd.Text("Game Over!", 12, 8, true); m_lcd.Text("press reset", 8, 32, true); m_lcd.Update(); m_state = 11; } if (m_state == 11) { // end } }; /// draws the game components void Draw() { // m_lcd.Fill(false); m_lcd.Line(0, 0, WIDTH - 1, 0, true); m_lcd.Line(0, 0, 0, HEIGHT - 1, true); m_lcd.Line(WIDTH - 1, HEIGHT - 1, WIDTH - 1, 0, true); m_lcd.Line(WIDTH - 1, HEIGHT - 1, 0, HEIGHT - 1, true); m_s.Draw(m_lcd); m_f.Draw(m_lcd, WEIGHT); m_lcd.Update(); }; int m_delay; private: /// indicates once that a button was pressed bool WasPressed(byte pin, byte index, int threshold = 512) { // int val = analogRead(pin); //Serial.println(val); if (val > threshold) { // isn't pressed if (m_bPress[index]) { // but was before m_bPress[index] = false; } return false; } // is pressed if (!m_bPress[index]) { // and wasn't before m_bPress[index] = true; return true; } // but was before return false; } /// the state of the automate byte m_state; /// the snake Snake m_s; /// the food Food m_f; /// the display LCDNokia5100 m_lcd; /// the array of button states bool m_bPress[BUTTON_COUNT]; }; /// the game instace Game g; void setup() { // put your setup code here, to run once: //Serial.begin(9600); g.Setup(); } void loop() { // put your main code here, to run repeatedly: g.Execute(); delay(g.m_delay); } |
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