Zapewne większość z was pamięta już można powiedzieć „kultową” grę Snake. Była to gra fabrycznie zainstalowana w telefonach Nokia np. 3210, 3310 czy innych a było ich sporo. Zatem dziś pokaże wam jak zbudować mini konsolę. Dzięki temu część z was poczuje jak to przysłowiowo kiedyś było.
Potrzebne komponenty:
- Arduino np. nano
- wyświetlacz OLED SSD1306
- moduł dwuosiowego joysticka analogowego
- płytka stykowa lub wersja na pająka
Schemat połączeń
Zanim przejdziemy do kodu programu upewnij się, że zainstalowałeś niezbędną bibliotekę Adafruit_SSD1306 do obsługi wyświetlacza OLED.
Kod programu
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// pobrano z www.tranzystor.pl #include <Wire.h> #include <Adafruit_GFX.h> #include <Adafruit_SSD1306.h> Adafruit_SSD1306 oled(128, 64, &Wire, -1); #define RIGHT 0 #define LEFT 1 #define UP 2 #define DOWN 3 //STICKBOX Pin #define pinX A0 #define pinY A1 int valueX = 0; int valueY = 0; unsigned char keyValue = 0; //Snake Value const uint8_t block[] PROGMEM = { 0xf0, //B1111000 0xb0, //B1011000 0xd0, //B1101000 0xf0, //B1111000 }; uint8_t snake_head_x = 4; uint8_t snake_head_y = 4; uint8_t x[100]; uint8_t y[100]; uint8_t snake_len = 2; uint8_t snake_dir = RIGHT; uint8_t food_x; uint8_t food_y; bool food_eaten = true; bool game_over = false; int score = 0; int level = 1; int snake_speed = 150; int i; void keyScan(void) { static unsigned char keyUp = 1; valueX = analogRead(pinX); valueY = analogRead(pinY); if (keyUp && ((valueX <= 10) || (valueX >= 1010) || (valueY <= 10) || (valueY >= 1010))) { delay(10); keyUp = 0; if (valueX <= 10) { if (snake_dir != UP) { snake_dir = DOWN; } } else if (valueX >= 1010) { if (snake_dir != DOWN) { snake_dir = UP; } } else if (valueY <= 10) { if (snake_dir != RIGHT) { snake_dir = LEFT; } } else if (valueY >= 1010) { if (snake_dir != LEFT) { snake_dir = RIGHT; } } } else if ((valueX > 10) && (valueX < 1010) && (valueY > 10) && (valueY < 1010))keyUp = 1; return 0; } void draw_snake(int x, int y) { oled.drawBitmap(x, y, block, 4, 4, 1); } void show_score(int x, int y, int data) { oled.setCursor(x, y); oled.println(data); } void screen(void) { oled.clearDisplay(); oled.setTextSize(1); oled.drawRect(0, 1, 102, 62, 1); oled.drawRect(0, 0, 102, 64, 1); oled.setCursor(104, 12); oled.println("LEVE"); oled.setCursor(104, 40); oled.println("SCOR"); show_score(110, 25, level); show_score(110, 53, score); for (i = 0; i < snake_len; i++) { draw_snake(x[i], y[i]); } draw_snake(food_x, food_y); oled.display(); } void draw_food(void) { int food_out = 0; if (food_eaten) { while (food_out == 0) { food_out = 1; food_x = (uint8_t)(random(4, 100) / 4) * 4; food_y = (uint8_t)(random(4, 60) / 4) * 4; for (int i = snake_len - 1; i > 0; i--) { if (food_x == x[i] && food_y == y[i]) { food_out = 0; } } } } food_eaten = false; } void snake_move(void) { switch (snake_dir) { case RIGHT: snake_head_x += 4; break; case UP: snake_head_y -= 4; break; case LEFT: snake_head_x -= 4; break; case DOWN: snake_head_y += 4; break; } if ((snake_head_x == food_x) && (snake_head_y == food_y)) { food_eaten = true; snake_len++; score++; level = score / 5 + 1; snake_speed -= level; } for (i = snake_len - 1; i > 0; i--) { x[i] = x[i - 1]; y[i] = y[i - 1]; } x[0] = snake_head_x; y[0] = snake_head_y; check_snake_die(); } void draw_game_over() { oled.clearDisplay(); oled.setTextSize(2); oled.setCursor(10, 10); oled.println("GAME OVER"); oled.setTextSize(1); oled.setCursor(30, 35); oled.println("LEVE:"); oled.setCursor(30, 55); oled.println("SCOR:"); show_score(80, 35, level); show_score(80, 55, score); oled.display(); } void check_snake_die(void) { if (snake_head_x < 4 || snake_head_x > 96 || snake_head_y < 1 || snake_head_y > 56) { game_over = true; } if (snake_len > 4) { for (int i = 1; i < snake_len; i++) { if (snake_head_x == x[i] && snake_head_y == y[i]) { game_over = true; } } } } void setup() { oled.begin(SSD1306_SWITCHCAPVCC, 0x3C); oled.setTextColor(WHITE); randomSeed(analogRead(3)); } void loop() { if (game_over) { draw_game_over(); } else { keyScan(); snake_move(); draw_food(); screen(); } delay(snake_speed); } |
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