fix up step 4

main/drivers/leds.cpp

@@ -5,7 +5,7 @@ led_strip_handle_t leds;
 void init_leds(void) {
     led_strip_config_t strip_config = {
         .strip_gpio_num = NEOPIXEL_PIN,
-        .max_leds = PIXEL_COUNT,
+        .max_leds = LED_COUNT,
         .led_pixel_format = LED_PIXEL_FORMAT_GRB,
         .led_model = LED_MODEL_WS2812
     };
@@ -20,8 +20,8 @@ void init_leds(void) {
 }
 
 void example_leds(void) {
-    for (int i = 0; i < PIXEL_COUNT; i++) {
+    for (int i = 0; i < LED_COUNT; i++) {
-        ESP_ERROR_CHECK(led_strip_set_pixel(leds, i, i, PIXEL_COUNT-i, 0));
+        ESP_ERROR_CHECK(led_strip_set_pixel(leds, i, i, LED_COUNT-i, 0));
     }
     ESP_ERROR_CHECK(led_strip_refresh(leds));
 }

main/drivers/leds.h

@@ -3,7 +3,7 @@
 
 #include "led_strip.h"
 
-#define PIXEL_COUNT 21
+#define LED_COUNT 21
 #define NEOPIXEL_PIN GPIO_NUM_7
 // 10MHz resolution, 1 tick = 0.1us (led strip needs a high resolution)
 #define LED_STRIP_RMT_RES_HZ  (10 * 1000 * 1000)

main/drivers/wires.cpp

@@ -77,6 +77,8 @@ void clear_wires_pressed_released_cut(void) {
 
 void strike(char* reason) {
     ESP_LOGW("strike!", "%s", reason);
+    lcd_set_cursor(&lcd, 0, 3);
+    lcd_print(&lcd, reason);
     uint8_t reg = 6;
     ESP_ERROR_CHECK_WITHOUT_ABORT(i2c_master_write_to_device(WIRES_I2C_NUM, WIRES_I2C_ADDR, &reg, 1, (100 / portTICK_PERIOD_MS)));
 }

main/drivers/wires.h

@@ -5,6 +5,7 @@
 #include <driver/i2c.h>
 #include <driver/gpio.h>
 #include <esp_log.h>
+#include "drivers/char_lcd.h"
 
 #define WIRES_PIN_DELTA GPIO_NUM_2
 #define WIRES_I2C_NUM I2C_NUM_1

main/helper.h

@@ -16,6 +16,9 @@ struct StarCodeHandler {
     void (*callback)(void);
 };
 
+// TODO: add something for RNG.
+// TODO: add something for colors, to make everything consistant.
+
 /// Clears most persistant bomb state
 void clean_bomb(void);
 void poster_child_task(void* arg);

main/main.cpp

@@ -42,7 +42,7 @@ extern "C" void app_main(void) {
 
     clean_bomb();
     step0();
-    set_game_time(30*60*1000 + 1000);
+    set_game_time(60*60*1000 + 1000);
     start_game_timer();
     clean_bomb();
     step1();

main/steps/step2.cpp

@@ -170,7 +170,7 @@ static void init_screen(void) {
     
     xSemaphoreGive(xGuiSemaphore);
 
-    // xTaskCreate(music_task, "music", 4096, NULL, 5, &music_handle);
+    xTaskCreate(music_task, "music", 4096, NULL, 5, &music_handle);
 }
 
 static void deinit_screen(void) {
@@ -179,7 +179,7 @@ static void deinit_screen(void) {
     lv_obj_clean(lv_scr_act());
     xSemaphoreGive(xGuiSemaphore);
 
-    // vTaskDelete(music_handle);
+    vTaskDelete(music_handle);
 }
 
 bool play_game(int time, int required_score) {

main/steps/step4.cpp

@@ -1,53 +1,97 @@
 #include "step4.h"
 
+#define ONE_SECOND_TIME 60'000
+#define THREE_SECOND_TIME 60'000
+#define SIX_SECOND_TIME 60'000
+
 static const char *TAG = "step4";
 
 static int tone = 0;
 static int times = 0;
 
+static const char* TONE_FILES[] = {
+    MOUNT_POINT "/low-1.pcm",
+    MOUNT_POINT "/low-3.pcm",
+    MOUNT_POINT "/low-6.pcm",
+    MOUNT_POINT "/high-1.pcm",
+    MOUNT_POINT "/high-3.pcm",
+    MOUNT_POINT "/high-6.pcm",
+};
+
+static const char* LCD_STRINGS[] = {
+    "something",
+    "nothing",
+    "",
+    "a word",
+    "not something",
+    "what?",
+    "LCD",
+    "display",
+};
+
+static int indicator_led_idxs[LED_COUNT] = {0};
+
+static bool contains_coconut = false;
+static char* COCONUT = "coconut";
+static char lcd_random_char_set[] = "aeiou tnsrhldm";
+static char random_lcd_text[21] = {0};
+
 static std::random_device rd;
 static std::mt19937 gen(rd());
 static std::uniform_int_distribution<> tone_dist(0, 5);
-static std::uniform_int_distribution<> color_dist(0, 5);
+static std::uniform_int_distribution<> color_dist(0, 6);
+static std::uniform_int_distribution<> lcd_string_dist(0, 7);
+static std::uniform_int_distribution<> lcd_number_dist(0, 15);
+static std::uniform_int_distribution<> lcd_rand_char_dist(0, sizeof(lcd_random_char_set)-2);
+static std::uniform_int_distribution<> has_coconut_dist(0, 2);
+static std::uniform_int_distribution<> coconut_position_dist(0, 13);
 
-static uint8_t NEOPIXEL_COLORS[6][3] = {
+static uint8_t NEOPIXEL_COLORS[7][3] = {
     {20, 0, 0},  // red
     {20, 10, 0}, // orange
     {20, 20, 0}, // yellow
     {0, 20, 0},  // green
     {0, 0, 20},  // blue
     {20, 0, 20}, // purple
+    {0, 0, 0}, // off
 };
 
-static void play_tone();
 static bool one_second();
 static bool three_second();
 static bool six_second();
 
 void step4(void) {
     // start counting down module timer immediatly
-    set_module_time(10*1000);
+    set_module_time(20'000);
     start_module_timer();
 
     while (get_module_time() > 0) vTaskDelay(pdMS_TO_TICKS(100));
 
     while (times < 4) {
         tone = tone_dist(gen);
-        play_tone();
+        // tone = 2;
+        play_raw(TONE_FILES[tone]);
+        
         switch (tone % 3) {
             case 0:
             if (one_second()) {
                 times++;
+                clean_bomb();
+                play_raw(MOUNT_POINT "/correct.pcm");
             }
             break;
             case 1:
             if (three_second()) {
                 times++;
+                clean_bomb();
+                play_raw(MOUNT_POINT "/correct.pcm");
             }
             break;
             case 2:
             if (six_second()) {
                 times++;
+                clean_bomb();
+                play_raw(MOUNT_POINT "/correct.pcm");
             }
             break;
         }
@@ -55,46 +99,294 @@ void step4(void) {
     }
 }
 
+static void generate_random_lcd_text(void) {
+    for (int i = 0; i < 20; i++) {
+        int char_idx = lcd_rand_char_dist(gen);
+        random_lcd_text[i] = lcd_random_char_set[char_idx];
+    }
+    contains_coconut = (has_coconut_dist(gen) == 0);
+    if (contains_coconut) {
+        int idx = coconut_position_dist(gen);
+        for (int i = 0; i < 7; i++) {
+            random_lcd_text[idx+i] = COCONUT[i];
+            // ESP_LOGI(TAG, "Writing idx %d to %c. Is %c", idx+i, COCONUT[i], random_lcd_text[idx+i]);
+        }
+        // ESP_LOGI(TAG, "Now: %s", random_lcd_text);
+    }
+}
+
+/// Sets the leds to random values.
+///
+/// This does not flush the leds.
+static void rng_leds() {
+    for (int i = 0; i < LED_COUNT; i++) {
+        indicator_led_idxs[i] = color_dist(gen);
+    }
+}
+
+static void write_leds() {
+    // update all the leds
+    for (int i = 0; i < LED_COUNT; i++) {
+        auto colors = NEOPIXEL_COLORS[indicator_led_idxs[i]];
+        led_strip_set_pixel(leds, i, colors[0], colors[1], colors[2]);
+    }
+    led_strip_refresh(leds);
+}
+
+static uint8_t four_bit_flag(bool b0, bool b1, bool b2, bool b3) {
+    return
+        (b0 << 0) |
+        (b1 << 1) |
+        (b2 << 2) |
+        (b3 << 3)
+    ;
+}
+
+static void print_bin(char* out_str, uint8_t n) {
+    out_str[0] = ((n & 0b1000) ? '1' : '0');
+    out_str[1] = ((n & 0b0100) ? '1' : '0');
+    out_str[2] = ((n & 0b0010) ? '1' : '0');
+    out_str[3] = ((n & 0b0001) ? '1' : '0');
+    out_str[4] = ' ';
+    out_str[5] = 'i';
+    out_str[6] = 'n';
+    out_str[7] = ' ';
+    out_str[8] = 'o';
+    out_str[9] = 'r';
+    out_str[10] = 'd';
+    out_str[11] = 'e';
+    out_str[12] = 'r';
+    out_str[13] = ':';
+    out_str[14] = ' ';
+    out_str[15] = ((n & 0b0001) ? '1' : '0');
+    out_str[16] = ((n & 0b0010) ? '1' : '0');
+    out_str[17] = ((n & 0b0100) ? '1' : '0');
+    out_str[18] = ((n & 0b1000) ? '1' : '0');
+}
+
+static void debug_correct_values(uint8_t correct_buttons, uint8_t button_mask, uint8_t correct_switches) {
+    char buf[20] = {0};
+    print_bin(buf, correct_switches);
+    ESP_LOGI(TAG, "Expected Switch State: 0b%s", buf);
+    print_bin(buf, correct_buttons);
+    ESP_LOGI(TAG, "Expected Button State: 0b%s", buf);
+    print_bin(buf, button_mask);
+    ESP_LOGI(TAG, "Button Mask:           0b%s", buf);
+}
+
+static void debug_actual_values(uint8_t buttons, uint8_t switch_) {
+    char buf[20] = {0};
+    print_bin(buf, switch_);
+    ESP_LOGI(TAG, "Actual Switch State:  0b%s", buf);
+    print_bin(buf, buttons);
+    ESP_LOGI(TAG, "Actual Button State:  0b%s", buf);
+    ESP_LOGI(TAG, "");
+}
+
 static bool one_second() {
-    set_module_time(30*1000);
+    clean_bomb();
+    set_module_time(ONE_SECOND_TIME);
     start_module_timer();
 
-    int speaker_indicator_color = color_dist(gen);
+    rng_leds();
-
+    int speaker_color = indicator_led_idxs[Led::speaker];
-    while (get_module_time() > 0) {
+    int lcd_string_idx = lcd_string_dist(gen);
+    bool was_high = (tone / 3) == 1;
+    write_leds();
+    lcd_clear(&lcd);
+    lcd_set_cursor(&lcd, 1, 1);
+    lcd_print(&lcd, LCD_STRINGS[lcd_string_idx]);
 
+    int red_led_count = 0;
+    int blue_led_count = 0;
+    for (int i = 0; i < LED_COUNT; i++) {
+        if (indicator_led_idxs[i] == 0) {
+            red_led_count++;
+        } else if (indicator_led_idxs[i] == 4) {
+            blue_led_count++;
+        }
     }
 
-return false;
+    uint8_t correct_switches = four_bit_flag(
+        speaker_color == 0 || speaker_color == 1 || speaker_color == 2,
+        lcd_string_idx == 0 || lcd_string_idx == 1,
+        was_high,
+        !was_high
+    );
+
+    uint8_t correct_button_mask = 0b1011;
+    uint8_t correct_buttons = four_bit_flag(
+        indicator_led_idxs[Led::char_lcd] != 6, // green
+        red_led_count > blue_led_count, // red
+        0, // yellow UNCHECKED
+        indicator_led_idxs[Led::rfid] == 4 || indicator_led_idxs[Led::rfid] == 6 // blue
+    );
+
+    debug_correct_values(correct_buttons, correct_button_mask, correct_switches);
+
+    // wait for timer
+    while (get_module_time() > 0) {
+        vTaskDelay(pdMS_TO_TICKS(100));
+    }
+
+    debug_actual_values(get_button_state(), get_switch_state());
+
+    if (get_switch_state() != correct_switches) {
+        clean_bomb();
+        strike("Incorrect Switches");
+        return false;
+    } 
+    if ((get_button_state() & correct_button_mask) != correct_buttons) {
+        clean_bomb();
+        strike("Incorrect Buttons");
+        return false;
+    }
+
+    return true;
 }
 
 static bool three_second() {
-    return false;
+    clean_bomb();
+    set_module_time(THREE_SECOND_TIME);
+    start_module_timer();
+
+    int lcd_number = lcd_number_dist(gen);
+    char lcd_number_string[9] = {0};
+    sprintf(lcd_number_string, "%d", lcd_number);
+    lcd_set_cursor(&lcd, 1, 1);
+    lcd_print(&lcd, lcd_number_string);
+
+    bool was_high = (tone / 3) == 1;
+
+    rng_leds();
+    write_leds();
+    int red_led_count = 0;
+    int blue_led_count = 0;
+    for (int i = 0; i < LED_COUNT; i++) {
+        if (indicator_led_idxs[i] == 0) {
+            red_led_count++;
+        } else if (indicator_led_idxs[i] == 4) {
+            blue_led_count++;
+        }
+    }
+
+    // reverse the ordering of the bits
+    uint8_t correct_switches = four_bit_flag(
+        (lcd_number >> 3) & 1,
+        (lcd_number >> 2) & 1,
+        (lcd_number >> 1) & 1,
+        (lcd_number >> 0) & 1
+    );
+
+    uint8_t correct_button_mask = 0b1110;
+    uint8_t correct_buttons = four_bit_flag(
+        0, // green UNCHECKED
+        was_high, // red
+        (lcd_number % 2) == 0, // yellow
+        blue_led_count > red_led_count // blue
+    );
+
+    debug_correct_values(correct_buttons, correct_button_mask, correct_switches);
+
+    // wait for timer
+    while (get_module_time() > 0) {
+        vTaskDelay(pdMS_TO_TICKS(100));
+    }
+
+    debug_actual_values(get_button_state(), get_switch_state());
+
+    if (get_switch_state() != correct_switches) {
+        clean_bomb();
+        strike("Incorrect Switches");
+        return false;
+    } 
+    if ((get_button_state() & correct_button_mask) != correct_buttons) {
+        clean_bomb();
+        strike("Incorrect Buttons");
+        return false;
+    }
+
+    return true;
 }
 
 static bool six_second() {
-    return false;
+    clean_bomb();
+    set_module_time(SIX_SECOND_TIME);
+    start_module_timer();
+
+    generate_random_lcd_text();
+    vTaskDelay(pdMS_TO_TICKS(10));
+    lcd_set_cursor(&lcd, 0, 0);
+    lcd_print(&lcd, random_lcd_text);
+
+    int vowels = 0;
+    for (int i = 0; i < 20; i++) {
+        char c = random_lcd_text[i];
+        if (c == 'a' || c == 'e' || c == 'i' || c == 'o' || c == 'u') {
+            vowels++;
+        }
+    }
+
+    bool was_high = (tone / 3) == 1;
+
+    bool second_switch_correct_state = (indicator_led_idxs[Led::switch2] == 0) || (indicator_led_idxs[Led::switch2] == 6);
+    second_switch_correct_state = second_switch_correct_state || was_high;
+
+    rng_leds();
+    write_leds();
+
+    int green_led_count = 0;
+    int blue_led_count = 0;
+    for (int i = 0; i < LED_COUNT; i++) {
+        if (indicator_led_idxs[i] == 4) {
+            blue_led_count++;
+        } else if (indicator_led_idxs[i] == 3) {
+            green_led_count++;
+        }
+    }
+
+    int purple_led_on_bottom_count = 0;
+    for (int i = Led::rfid; i < LED_COUNT; i++) {
+        if (indicator_led_idxs[i] == 5) {
+            purple_led_on_bottom_count++;
+        }
+    }
+
+    uint8_t correct_switches = four_bit_flag(
+        vowels > 7,
+        second_switch_correct_state,
+        true,
+        !(purple_led_on_bottom_count > 1)
+    );
+
+    uint8_t correct_button_mask = 0b1101;
+    uint8_t correct_buttons = four_bit_flag(
+        (!was_high) || (green_led_count >= 2) || indicator_led_idxs[Led::keypad] == 4, // green
+        0, // red UNCHECKED
+        blue_led_count >= 3, // yellow
+        contains_coconut // blue
+    );
+
+    debug_correct_values(correct_buttons, correct_button_mask, correct_switches);
+
+    // wait for timer
+    while (get_module_time() > 0) {
+        vTaskDelay(pdMS_TO_TICKS(100));
+    }
+    
+    debug_actual_values(get_button_state(), get_switch_state());
+
+    if (get_switch_state() != correct_switches) {
+        clean_bomb();
+        strike("Incorrect Switches");
+        return false;
+    } 
+    if ((get_button_state() & correct_button_mask) != correct_buttons) {
+        clean_bomb();
+        strike("Incorrect Buttons");
+        return false;
+    }
+
+    return true;
 }
 
-static void play_tone() {
-    switch (tone) {
-        case 0:
-        play_raw(MOUNT_POINT "/low-1.pcm");
-        break;
-        case 1:
-        play_raw(MOUNT_POINT "/low-3.pcm");
-        break;
-        case 2:
-        play_raw(MOUNT_POINT "/low-6.pcm");
-        break;
-        case 3:
-        play_raw(MOUNT_POINT "/high-1.pcm");
-        break;
-        case 4:
-        play_raw(MOUNT_POINT "/high-3.pcm");
-        break;
-        case 5:
-        play_raw(MOUNT_POINT "/high-6.pcm");
-        break;
-    }
-}

main/steps/step4.h

@@ -5,7 +5,10 @@
 #include "../drivers/bottom_half.h"
 #include "../drivers/wires.h"
 #include "../drivers/speaker.h"
+#include "../drivers/leds.h"
+#include "../drivers/char_lcd.h"
 #include "../drivers/game_timer.h"
+#include "../helper.h"
 
 void step4(void);