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--- pm:prj2025:fstancu:david_ionut.luca [2025/05/28 08:51]
david_ionut.luca
+++ pm:prj2025:fstancu:david_ionut.luca [2025/05/28 09:53] (current)
david_ionut.luca
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 ====== Snake Game - Luca David-Ionut 334CD ======
+**__MILESTONE 1 - TEMA PROIECT__**
 Acest proiect constă într-o implementare a jocului Snake clasic pe platforma Arduino Uno R3.  O caracteristică importantă este controlul vitezei șarpelui prin intermediul unui potențiometru, iar scorul obținut de jucător este vizualizat pe un display LCD.
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 Am utilizat funcția map() pentru a converti valorile citite de la ADC într-un interval de milisecunde ajustabil.
+    #include <U8g2lib.h>
+    #include <avr/io.h>
+    #include <avr/interrupt.h>
+    #include <Arduino.h>
+    const int buttonRight = 2;
+    const int buttonDown = 3;
+    const int buttonUp = 4;
+    const int buttonLeft = 9;
+    const int analogPin = A0;
+    #define LEFT 1
+    #define DOWN 2
+    #define UP 3
+    #define RIGHT 4
+    #define CS_PIN 10
+    #define RST_PIN 8
+    U8G2_ST7920_128X64_F_HW_SPI u8g2(U8G2_R0, CS_PIN, RST_PIN);
+    volatile int direction = 0;
+    int analogValue = 0;
+    int delay_ms = 0;
+    int dotX;
+    int dotY;
+    int newHeadX;
+    int newHeadY;
+    const int dotRadius = 4;
+    const int moveStep = 4;
+    const int gameWidth = 96;
+    #define MAX_SNAKE_LENGTH 50
+    int snakeX[MAX_SNAKE_LENGTH];
+    int snakeY[MAX_SNAKE_LENGTH];
+    int snakeLength = 1;
+    int scoreX;
+    int scoreY;
+    int score = 0;
+    int record = 0;
+    int manhattanDistance(int x1, int y1, int x2, int y2) {
+        return abs(x1 - x2) + abs(y1 - y2);
+    }
+    int isCloseToSnake(int x, int y) {
+        for (int i = 0; i < snakeLength; i++) {
+            if (manhattanDistance(x, y, snakeX[i], snakeY[i]) < 4) {
+                return 1;
+            }
+        }
+        return 0;
+    }
+    void generateScorePoint() {
+        int newX, newY;
+        do {
+            newX = random(dotRadius, gameWidth - dotRadius);
+            newY = random(dotRadius, u8g2.getHeight() - dotRadius);
+            newX -= newX % moveStep;
+            newY -= newY % moveStep;
+        } while (isCloseToSnake(newX, newY));
+        scoreX = newX;
+        scoreY = newY;
+    }
+    void resetGame() {
+        dotX = gameWidth / 2 - (gameWidth / 2) % moveStep;
+        dotY = u8g2.getHeight() / 2 - (u8g2.getHeight() / 2) % moveStep;
+        direction = 0;
+        score = 0;
+        snakeLength = 1;
+        generateScorePoint();
+    }
+    void showGameOver() {
+        u8g2.clearBuffer();
+        u8g2.setFont(u8g2_font_ncenB14_tr);
+        const char* gameOverText = "GAME OVER";
+        int textWidth = u8g2.getStrWidth(gameOverText);
+        int textX = (u8g2.getWidth() - textWidth) / 2;
+        int textY = u8g2.getHeight() / 2;
+        u8g2.drawStr(textX, textY, gameOverText);
+        u8g2.sendBuffer();
+        delay(3000);
+        if (score > record) {
+            record = score;
+            u8g2.clearBuffer();
+            u8g2.setFont(u8g2_font_ncenB14_tr);
+            const char* highScoreText = "RECORD";
+            textWidth = u8g2.getStrWidth(highScoreText);
+            textX = (u8g2.getWidth() - textWidth) / 2;
+            int textY = u8g2.getHeight() / 2;
+            u8g2.drawStr(textX, textY, highScoreText);
+            u8g2.sendBuffer();
+            delay(3000);
+        }
+    }
+    int readADC(uint8_t channel) {
+        ADMUX = (0 << REFS1) | (1 << REFS0) | (channel & 0x07);
+        ADCSRA |= (1 << ADSC);
+        while (ADCSRA & (1 << ADSC));
+        return ADCW;
+    }
+    void SPI_MasterInit(void) {
+        DDRB |= (1 << DDB3) | (1 << DDB5) | (1 << DDB2);
+        SPCR = (1 << SPE) | (1 << MSTR) | (1 << SPR0);
+    }
+    void setup() {
+        DDRD &= ~((1 << PIND2) | (1 << PIND3) | (1 << PIND4));
+        PORTD |= (1 << PIND2) | (1 << PIND3) | (1 << PIND4);
+        DDRB &= ~(1 << PINB1);
+        PORTB |= (1 << PINB1);
+        UBRR0H = (uint8_t)(51 & 0xF00);
+        UBRR0L = (uint8_t)(51 & 0x0FF);
+        UCSR0B = (1 << RXEN0) | (1 << TXEN0);
+        UCSR0C = (1 << UCSZ01) | (1 << UCSZ00);
+        ADMUX = (0 << REFS1) | (1 << REFS0) | (0 << ADLAR);
+        ADCSRA = (1 << ADEN) | (1 << ADPS2) | (1 << ADPS1) | (1 << ADPS0);
+        randomSeed(readADC(1));
+        EICRA |= (1 << ISC11) | (1 << ISC01);
+        EIMSK |= (1 << INT1) | (1 << INT0);
+        PCICR |= (1 << PCIE2) | (1 << PCIE0);
+        PCMSK0 |= (1 << PCINT1);
+        PCMSK2 |= (1 << PCINT20);
+        sei();
+        Serial.begin(9600);
+        SPI_MasterInit();
+        u8g2.begin();
+        resetGame();
+    }
+    ISR(INT0_vect) {
+        if (direction != LEFT)
+            direction = RIGHT;
+        delayMicroseconds(20000);
+    }
+    ISR(INT1_vect) {
+        if (direction != UP)
+            direction = DOWN;
+        delayMicroseconds(20000);
+    }
+    ISR(PCINT2_vect) {
+        if (!((PIND >> PIND4) & 1)) {
+            if (direction != DOWN)
+                direction = UP;
+        }
+        delayMicroseconds(20000);
+    }
+    ISR(PCINT0_vect) {
+        if (!((PINB >> PINB1) & 1)) {
+            if (direction != RIGHT)
+                direction = LEFT;
+        }
+        delayMicroseconds(20000);
+    }
+    void loop() {
+        u8g2.clearBuffer();
+        analogValue = readADC(0);
+        delay_ms = map(analogValue, 0, 1023, 0, 200);
+        switch (direction) {
+            case LEFT:
+                dotX -= moveStep;
+                break;
+            case RIGHT:
+                dotX += moveStep;
+                break;
+            case UP:
+                dotY -= moveStep;
+                break;
+            case DOWN:
+                dotY += moveStep;
+                break;
+        }
+        if (dotX < 0 || dotX >= gameWidth || dotY < 0 || dotY >= u8g2.getHeight()) {
+            showGameOver();
+            resetGame();
+        }
+        newHeadX = dotX;
+        newHeadY = dotY;
+        if (dotX == scoreX && dotY == scoreY) {
+            score++;
+            snakeLength++;
+            if (snakeLength > MAX_SNAKE_LENGTH) {
+                snakeLength = MAX_SNAKE_LENGTH;
+            }
+            generateScorePoint();
+        }
+        for (int i = 1; i < snakeLength; i++) {
+            if (snakeX[i] == dotX && snakeY[i] == dotY) {
+                showGameOver();
+                resetGame();
+            }
+        }
+        for (int i = snakeLength - 1; i > 0; i--) {
+            snakeX[i] = snakeX[i - 1];
+            snakeY[i] = snakeY[i - 1];
+        }
+        snakeX[0] = newHeadX;
+        snakeY[0] = newHeadY;
+        u8g2.setDrawColor(1);
+        for (int i = 0; i < snakeLength; i++) {
+            u8g2.drawBox(snakeX[i], snakeY[i], dotRadius, dotRadius);
+        }
+        u8g2.drawBox(scoreX, scoreY, dotRadius, dotRadius);
+        u8g2.drawVLine(gameWidth, 0, u8g2.getHeight());
+        u8g2.setFont(u8g2_font_6x10_tf);
+        char scoreTextDisplay[10];
+        sprintf(scoreTextDisplay, "Scor");
+        u8g2.drawStr(gameWidth + (u8g2.getWidth() - gameWidth - u8g2.getStrWidth(scoreTextDisplay)) / 2, 10, scoreTextDisplay);
+        u8g2.setFont(u8g2_font_7x13_tf);
+        char scoreString[5];
+        sprintf(scoreString, "%d", score);
+        u8g2.drawStr(gameWidth + (u8g2.getWidth() - gameWidth - u8g2.getStrWidth(scoreString)) / 2, 25, scoreString);
+        u8g2.drawHLine(gameWidth, u8g2.getHeight() / 2, u8g2.getWidth() - gameWidth);
+        u8g2.setFont(u8g2_font_6x10_tf);
+        char recordText[10];
+        sprintf(recordText, "Best");
+        u8g2.drawStr(gameWidth + (u8g2.getWidth() - gameWidth - u8g2.getStrWidth(recordText)) / 2, u8g2.getHeight() / 2 + 11, recordText);
+        u8g2.setFont(u8g2_font_7x13_tf);
+        char recordString[5];
+        sprintf(recordString, "%d", record);
+        u8g2.drawStr(gameWidth + (u8g2.getWidth() - gameWidth - u8g2.getStrWidth(recordString)) / 2, u8g2.getHeight() / 2 + 26, recordString);
+        u8g2.sendBuffer();
+        Serial.println(delay_ms);
+        delay(100 + delay_ms);
+    }