// This function initializes the LCD plus any AVR ports etc
void lcd_init() {
// Initialise the AVR ports and any other hardware bits
DATA_PORT.OUT = 0x00; // initial data lines all low
DATA_PORT.DIRSET = 0xff; // set the 8-bit data port to all outputs
COMM_PORT.OUTCLR = LCD_E | LCD_RS; // all LCD control lines low
COMM_PORT.DIRSET = LCD_E | LCD_RS; // set the LCD control line pins to outputs
// Now do the actual LCD initialisations
// startup delay - make it long to allow time for power to settle
// (you want wish to remove this line)
_delay_ms(500);
// LCD display initialization by instruction magic sequence
lcd_write_byte(0x38); // function set
_delay_us(50);
lcd_write_byte(0x0c); // display on/off control
_delay_us(50);
lcd_write_byte(0x01); // display clear
_delay_ms(5);
lcd_write_byte(0x06); // entry mode set
_delay_ms(5);
lcd_write_byte(0x14); // Cursor shift
lcd_clear_and_home(); // LCD cleared and cursor is brought to
// the beginning of 1st line
}
void bghighscore_new(int8_t rank, uint16_t score) {
int8_t i;
nkbuttons_t button_state;
uint8_t pressed_buttons;
nkbuttons_clear(&button_state);
for (i = 0; i < INITIALS; i++)
highscores[rank].initials[i] = 'a';
highscores[rank].score = score;
lcd_clear_and_home();
lcd_goto_position(0, 2);
lcd_write_string(PSTR("NEW HIGH SCORE"));
bghighscore_display_line(rank, 2);
lcd_goto_position(2, 6);
nklcd_start_blinking();
i = 0;
while(1) {
if (nktimer_animate()) {
pressed_buttons = nkbuttons_read(&button_state);
if(pressed_buttons) {
nklcd_stop_blinking();
alter_highscore_initials(pressed_buttons, rank, i);
if(bghighscore_move_cursor(pressed_buttons, &i))
break;
bghighscore_display_line(rank, 2);
lcd_goto_position(2, 6+i);
nklcd_start_blinking();
}
}
}
bghighscore_write();
}
// -----------------------------------------------------------------
int main() {
// Initialize the lcd
lcd_init();
fdev_setup_stream(&lcd_stream, lcd_putchar, 0, _FDEV_SETUP_WRITE);
lcd_clear_and_home();
// initialize eeprom and TWI/I2C
eeprom_init();
// specify 7 bit device address of eeprom chip
#define EEPROM_DEVICE_ID 0b1010000
fprintf_P(&lcd_stream, PSTR("24LC256 ADDR: %02X"), EEPROM_DEVICE_ID);
// specify eeprom memory address for data storage
#define EEPROM_DATA_ADDRESS 0x0000
// create local copy of eeprom data
EEPROM_DATA e_data;
// read eeprom contents at location 0000
e_data = read_eeprom(0);
// show what we read from the eeprom -
// note: the very first read on a new eeprom
// will show uninitalized data
show_eeprom_data(&e_data);
// process data
if(e_data.need_initalization){
// set all data item values if first time
e_data.need_initalization = false;
strcpy_P(e_data.author, PSTR("Noter"));
e_data.read_count = 1;
e_data.brightness = 0x33;
e_data.version = 1.01;
} else {
// check contents against the values written when initializing
if((e_data.version != 1.01)||
(strcmp_P(e_data.author, PSTR("Noter")) !=0)||
(e_data.brightness != 0x33)){
lcd_line_four();
fprintf_P(&lcd_stream, PSTR("DATA ERROR - "));
while(true); // and freeze
} else {
// increment read_count
e_data.read_count += 1;
}
}
// write data to eeprom memory at location 0000
write_eeprom(0, &e_data);
// and show the read count
lcd_line_two();
fprintf_P(&lcd_stream, PSTR("READ COUNT = %d"), e_data.read_count);
// done
while(true);
}
void bggame_over(uint16_t score) {
// game is over (no more moves)
nklcd_stop_blinking();
lcd_clear_and_home();
lcd_goto_position(0, 6);
lcd_write_string(PSTR("GAME OVER"));
lcd_goto_position(2, 4);
lcd_write_string(PSTR("score: "));
lcd_write_int16(score);
nktimer_simple_delay(300);
}
void bghighscore_screen() {
int8_t s;
// game is over (no more moves)
lcd_clear_and_home();
nklcd_stop_blinking();
lcd_goto_position(0, 5);
lcd_write_string(PSTR("HIGH SCORES"));
for (s = 0; s < HIGH_SCORES; s++) {
bghighscore_display_line(s, 1+s);
}
nktimer_simple_delay(300);
}
void bggame_play(game_t *game) {
// row and column of the cursor
point_t cursor;
// read state
nkbuttons_t button_state;
// latest new presses
uint8_t pressed_buttons;
// selection state
point_t selection;
// idle/sleep timer
int16_t idle = 0;
nkbuttons_clear(&button_state);
cursor.row = 0;
cursor.column = 0;
bggame_invalidate_selection(&selection);
bggame_board_init(game);
lcd_clear_and_home();
bggame_animate_clear_sets(game);
game->score = 0; // no points for tiles removed before play starts
lcd_goto_position(cursor.row, cursor.column);
nklcd_start_blinking();
uint8_t move_exists = bggame_valid_move_exists(*game);
// now let play begin
while(move_exists) {
if (nktimer_animate()) {
pressed_buttons = nkbuttons_read(&button_state);
if(pressed_buttons) {
idle = 0;
nklcd_stop_blinking();
bggame_move_cursor(*game, pressed_buttons, &cursor);
if(bggame_select(game, pressed_buttons, cursor, &selection)) {
bggame_animate_clear_sets(game);
move_exists = bggame_valid_move_exists(*game);
}
lcd_goto_position(cursor.row, cursor.column);
nklcd_start_blinking();
} else if (++idle > 3600) {
// go to sleep after a minute of no activity
idle = 0;
nksleep_standby();
// display comes out of standby with blink disabled
nklcd_start_blinking();
}
}
}
}
int main() {
DDRC |= (1<<PC4);
_delay_ms(100);
lcd_init();
FILE lcd_stream = FDEV_SETUP_STREAM(lcd_putchar, 0,_FDEV_SETUP_WRITE);
int i = 0;
lcd_clear_and_home();
lcd_write_string(PSTR("Alex + Christina"));
while (1) {
lcd_line_two();
if (i) {
lcd_write_string(PSTR(" I LOVE YOU"));
} else {
lcd_write_string(PSTR(" "));
}
i = (i+1) % 2;
_delay_ms(1000);
}
return 0;
}
