wargames.ino

// thx @trollkopp for helping me optimizing the code

#include <SPI.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>

// ARDUINO
#define OLED_MOSI  11
#define OLED_CLK   12
#define OLED_DC    9
#define OLED_CS    8
#define OLED_RESET 10


// ESP8266
/*
#define OLED_MOSI  D3
#define OLED_CLK   D4
#define OLED_DC    D1
#define OLED_CS    D0
#define OLED_RESET D2
*/

Adafruit_SSD1306 display(OLED_MOSI, OLED_CLK, OLED_DC, OLED_RESET, OLED_CS);

void crackCode(int, int);
void drawFrame();

void setup(){
    // ARDUINO
    pinMode(13, OUTPUT);
    digitalWrite(13, HIGH);
    

    Serial.begin(115200);
    randomSeed(analogRead(0));

    display.begin(SSD1306_SWITCHCAPVCC);
    display.display();
    display.clearDisplay();
    drawFrame();
    display.display();
}

char code[] = "CPE1704TKS";
//char code[] = "JPE1704TKS"; // wrong code from one scene
//char code[] = "DLG2209TVX"; // launch code from opening scene

boolean flag[] = {0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0};
char string[10];
int cnt = 0;
int tres = 150;
int wait = 50;

//int order[] = {6, 1, 3, 5, 9, 2, 4, 0, 8, 7}; // actual order of code[]
//int order[] = {7, 1, 5, 2, 6, 3, 0, 9, 8, 4};   // sequence, when character gets set

void loop() {
    sprintf(string, "%c%c%c%01i%01i%01i%01i%c%c%c", (char)random('A', 'Z'+1), (char)random('A', 'Z'+1), (char)random('A', 'Z'+1), (int)random(0, 9+1), (int)random(0, 9+1), (int)random(0, 9+1), (int)random(0, 9+1), (char)random('A', 'Z'+1), (char)random('A', 'Z'+1), (char)random('A', 'Z'+1));

    if ( cnt > tres ) {
//                 ______ for-loop wouldn't work
//                /  ____ flag value of previous value
//                | /   _ sequence number
//                | |  /
        crackCode(0,4,7);
        crackCode(1,6,1);
        crackCode(2,9,5);
        crackCode(3,1,2);
        crackCode(4,2,6);
        crackCode(5,3,3);
        crackCode(6,6,0);
        crackCode(7,8,9);
        crackCode(8,0,8);
        crackCode(9,5,4);
    }

    //sprintf(string, "CPE1704TKS");

    if ( !strcmp(string, code) ) {
        display.clearDisplay();
        drawFrame();
        while (1) {
            display.setCursor(4, (display.height() / 2) - 7);
            display.setTextSize(2);
            display.setTextColor(WHITE);
            if (flag[10] == 0) {
                display.print(code);
                display.display();
                flag[10] = 1;
                delay(500);
            } else {
                flag[10] = 0;
            }
            delay(250);
            display.clearDisplay();
            drawFrame();
            display.display();
        }
    }
    display.clearDisplay();
    drawFrame();
    display.setCursor(4, (display.height() / 2) - 7);
    display.setTextSize(2);
    display.setTextColor(WHITE);
    
    display.print(string);
    //Serial.println(string);
    
    display.display();
    delay(50);
    if( cnt <= 10000 ) cnt++;
}

void crackCode(int i, int j, int k) {
    if ((string[i] == code [i] || flag [i] == 1) && cnt>tres+wait*k && flag[j] == 1){
        string[i] = code[i];
        flag[i] = 1;
    }
}

void drawFrame(){
    for(int i=0; i<3; i++){
        display.drawFastHLine(0, i, display.width()-1, WHITE);
    }
    for(int i=display.height()-1; i>display.height()-4; i--){
        display.drawFastHLine(0, i, display.width()-1, WHITE);
    }
    //display.display();
}