Made cards go through a deck format.
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6db0a62bbf
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@ -43,6 +43,8 @@
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#define BOARD_DISPLAY_END 9
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#define MIN_CARD_VALUE 2
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#define MAX_CARD_VALUE 14
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#define DUPLICATES_OF_CARD 4
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#define DECK_COUNT (DUPLICATES_OF_CARD * (MAX_CARD_VALUE - MIN_CARD_VALUE + 1))
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#define FLIP_BOARD_DIRECTION false
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typedef struct card_t {
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@ -73,6 +75,8 @@ static card_t game_board[GAME_BOARD_SIZE] = {0};
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static uint8_t guess_position = 0;
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static uint8_t score = 0;
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static uint8_t completed_board_count = 0;
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static uint8_t _deck[DECK_COUNT];
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static uint8_t _curr_card;
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static uint8_t generate_random_number(uint8_t num_values) {
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// Emulator: use rand. Hardware: use arc4random.
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@ -83,10 +87,41 @@ static uint8_t generate_random_number(uint8_t num_values) {
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#endif
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}
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static void stack_deck(uint8_t *array) {
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const uint8_t unique_cards = MAX_CARD_VALUE - MIN_CARD_VALUE + 1;
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for (uint8_t i = 0; i < unique_cards; i++)
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{
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for (uint8_t j = 0; j < DUPLICATES_OF_CARD; j++)
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array[(i * DUPLICATES_OF_CARD) + j] = MIN_CARD_VALUE + i;
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}
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}
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static void shuffle_deck(uint8_t *array, uint8_t n) {
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// Randomize shuffle with Fisher Yates
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uint8_t i, j, tmp;
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for (i = n - 1; i > 0; i--) {
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j = generate_random_number(0xFF) % (i + 1);
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tmp = array[j];
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array[j] = array[i];
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array[i] = tmp;
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}
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}
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static void reset_deck(void) {
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_curr_card = 0;
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stack_deck(_deck);
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shuffle_deck(_deck, DECK_COUNT);
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}
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static uint8_t get_next_card(void) {
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if (_curr_card >= DECK_COUNT) reset_deck();
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return _deck[_curr_card++];
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}
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static void reset_board(bool first_round) {
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// First card is random on the first board, and carried over from the last position on subsequent boards
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const uint8_t first_card_value = first_round
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? generate_random_number(MAX_CARD_VALUE - MIN_CARD_VALUE + 1) + MIN_CARD_VALUE
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? get_next_card()
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: game_board[GAME_BOARD_SIZE - 1].value;
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game_board[0].value = first_card_value;
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@ -95,7 +130,7 @@ static void reset_board(bool first_round) {
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// Fill remainder of board
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for (size_t i = 1; i < GAME_BOARD_SIZE; ++i) {
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game_board[i] = (card_t) {
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.value = generate_random_number(MAX_CARD_VALUE - MIN_CARD_VALUE + 1) + MIN_CARD_VALUE,
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.value = get_next_card(),
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.revealed = false
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};
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}
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@ -105,6 +140,7 @@ static void init_game(void) {
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watch_clear_display();
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watch_display_string(TITLE_TEXT, BOARD_DISPLAY_START);
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watch_display_string("GA", STATUS_DISPLAY_START);
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reset_deck();
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reset_board(true);
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score = 0;
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completed_board_count = 0;
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