File content as of revision 1:7da5b36d5f50:

#include "mbed.h"
#include "N5110.h"

//Tetris by Kristian Bridges

//         VCC,    SCE,   RST,   D/C,   MOSI,  SCLK,   LED
N5110 lcd (PTE26 , PTA0 , PTC4 , PTD0 , PTD2 , PTD1 , PTC3);

AnalogIn potX(PTB2);
AnalogIn potY(PTB3);
DigitalIn joyButton(PTB11);

#define tolerance 0.05f
#define down_tolerance -0.05f

Ticker checkJoy;

enum direction_t {
    UP, //0
    DOWN, //1
    LEFT, //2
    RIGHT, //3
    CENTRE, //4
    UNKNOWN //5
};

typedef struct {
    float initial_x,initial_y;
    float current_x,current_y;
    int button;
    direction_t direction;
} joystick;

joystick joy;

volatile int g_bank_index  = 0;
volatile int index1 = g_bank_index;
volatile int g_joyFlag = 0;
char buffer[14];
char buffer2[14];
int xlcd;
int ylcd;

void menu();
void joyCal();
void joyUpdate();
void selection();
void game();
void achievements();
void options();

int main()
{
    lcd.init();
    lcd.clear();
    lcd.printString("Tetris",24,1);
    lcd.printString("by",36,2);
    lcd.printString("K.Bridges",15,3);
    lcd.printString("SID: 200859491",0,5);
    wait(2);
    lcd.clear();
    joyCal();
    checkJoy.attach(&joyUpdate,0.01);
    menu();

}

void menu()
{

    int x,y;

    lcd.printString("New Game",18,1);
    lcd.printString("Achievements",6,2);
    lcd.printString("Options",21,3);

    while(joy.button == 0) {
        if(g_joyFlag) {
            g_joyFlag = 0;

            switch(joy.direction) {
                case UP:
                    if(g_bank_index == 0) {
                        g_bank_index = 2;
                        break;
                    } else
                        g_bank_index--;
                    break;
                case DOWN:
                    if(g_bank_index == 2) {
                        g_bank_index = 0;
                    } else
                        g_bank_index++;
            }
            if(g_bank_index == 0) {
                
                lcd.clear();
                lcd.printString("New Game",18,1);
                lcd.printString("Achievements",6,2);
                lcd.printString("Options",21,3);
                
                for(x=0; x<WIDTH; x++) {
                    for(y=7; y<15; y++) {
                        if(lcd.getPixel(x,y)) {
                            lcd.clearPixel(x,y);
                        } else {
                            lcd.setPixel(x,y);
                        }
                    }
                }
            }
            if(g_bank_index == 1) {
                
                lcd.clear();
                lcd.printString("New Game",18,1);
                lcd.printString("Achievements",6,2);
                lcd.printString("Options",21,3);
                
                for(x=0; x<WIDTH; x++) {
                    for(y=14; y<22; y++) {
                        if(lcd.getPixel(x,y)) {
                            lcd.clearPixel(x,y);
                        } else {
                            lcd.setPixel(x,y);
                        }
                    }
                }
            }
            if(g_bank_index == 2) {
                
                lcd.clear();
                lcd.printString("New Game",18,1);
                lcd.printString("Achievements",6,2);
                lcd.printString("Options",21,3);
                
                for(x=0; x<WIDTH; x++) {
                    for(y=21; y<29; y++) {
                        if(lcd.getPixel(x,y)) {
                            lcd.clearPixel(x,y);
                        } else {
                            lcd.setPixel(x,y);
                        }
                    }
                }
            }
            lcd.refresh();
        }
        sleep();
    }//end of while loop

}//end of function

void joyCal()
{
    joy.initial_x = potX;
    joy.initial_y = potY;
    joyButton.mode(PullDown);
}

void joyUpdate()
{
    joy.current_x = potX - joy.initial_x; //current x-position
    joy.current_y = potY - joy.initial_y; //current y-position
    joy.button = joyButton; //current button state

    if((joy.current_y) > tolerance && fabs(joy.current_x) < tolerance) {    //fabs returns an absolute value
        joy.direction = UP;
    } else if((joy.current_y) < down_tolerance && fabs(joy.current_x) < tolerance) {
        joy.direction = DOWN;
    } else if((joy.current_x) > tolerance && fabs(joy.current_y) < tolerance) {
        joy.direction = LEFT;
    } else if((joy.current_x) < tolerance && fabs(joy.current_y) < tolerance) {
        joy.direction = RIGHT;
    } else if(fabs(joy.current_x) < tolerance && fabs(joy.current_y) < tolerance) {
        joy.direction = CENTRE;
    } else
        joy.direction = UNKNOWN;
    g_joyFlag = 1;
}

void selection()
{
    if(g_bank_index == 0) {
        game();
    } else if(g_bank_index == 1) {
        achievements();
    } else if(g_bank_index == 2) {
        options();
    }
}

void game()
{
}

void achievements()
{
}

void options()
{
}