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#include "mbed.h"
#include "2048.h"
#include "spi_init.h"
#include "counter.h"
#include "Adafruit_SSD1306.h"
#define SW_PINS p24, p23, p22, p21
#define SW_PERIOD 20000 // 20ms
void tout(void);
void draw(int board[4][4], int score);
// Onboard LED
PinName switch_pin[] = { SW_PINS };
Counter *switch_position[4];
Ticker timer;
//Ticker pwm;
volatile uint16_t switch_count[4] = { 0, 0, 0, 0 };
volatile uint16_t switch_pressed[4] = { 0, 0, 0, 0 };
volatile uint16_t last_pressed[4] = { 0, 0, 0, 0 };
uint16_t current_f[4] = { 0, 0, 0, 0 };
volatile uint16_t update = 0;
// Initialise display
SPInit gSpi(D_MOSI_PIN, NC, D_CLK_PIN);
Adafruit_SSD1306_Spi oled(gSpi, D_DC_PIN, D_RST_PIN, D_CS_PIN, 64, 128);
int main(void)
{
int done = 0;
int board[4][4];
init(board); //Function from 2048.h to initialise values
oled.setRotation(2);
wait(0.5);
// Enable ISR for the switch rising edge
for (int i = 0; i < 4; ++i) {
switch_position[i] = new Counter(switch_pin[i]);
}
//Attach switch sampling timer ISR to the timer instance with the required period
timer.attach_us(&tout, SW_PERIOD);
//Print splash screen for 1 second
oled.clearDisplay();
oled.setTextCursor(oled.width()/2-10,oled.height()/2);
oled.printf("2048");
oled.setTextCursor(oled.width()/2-30,oled.height()/2+10);
oled.printf("\n%ux%u Group Ay08-04\n", oled.width(), oled.height());
oled.display();
wait(1);
int score = 0;
bool gameOver = false;
//Print initial board
oled.clearDisplay();
draw(board,score);
oled.display();
for (;;) {
if (update) {
update = 0;
done = 0;
oled.setTextCursor(0, 0);
//Write the latest switch osciallor count. done is true if move valid
if(!gameOver)
{
for (int i = 3; i >= 0; --i) {
if (switch_pressed[i] && !last_pressed[i])
done = move(i, board); //Apply move to board
}
if(done){
add2(board); //Add a new 2 if there are 0's
score++;
oled.clearDisplay();
draw(board,score);
oled.display();
}
}
if(gameover(board))
{
oled.clearDisplay();
oled.setTextCursor(oled.width()/2-30,oled.height()/2);
oled.printf("Game Over!");
oled.display();
gameOver = true;
wait(3);
oled.clearDisplay();
oled.setTextCursor(oled.width()/2-30,oled.height()/2);
oled.printf("Again?");
oled.display();
//TODO: Put in code to set game over to false if up is pressed
}
//Copy the display buffer to the display
}
}
}
//Interrupt Service Routine for the switch sampling timer
void tout(void)
{
// Query how many times switch triggered
for (int i = 0; i < 4; ++i) {
switch_count[i] = switch_position[i]->read();
switch_position[i]->write(0);
last_pressed[i] = switch_pressed[i];
if (switch_count[i] < 600)
switch_pressed[i] = 1;
else if (switch_count[i] > 700)
switch_pressed[i] = 0;
}
// Update display
update = 1;
}
//Board stores powers of 2, so must convert and then print
void draw(int board[SIZE][SIZE], int score)
{
oled.setTextCursor(0,0);
oled.printf("Score: %d", score);
int x, y;
int value;
for (y = 0; y < SIZE; y++) {
for (x = 0; x < SIZE; x++) {
if (board[x][y] != 0) {
value = 2;
for (int i = 1; i < board[x][y]; ++i) {
value = value * 2;
}
} else {
value = 0;
}
oled.setTextCursor(oled.width()/4*(x),oled.height()*(y+1)/5);
oled.printf("%d", value);
}
}
}
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