File content as of revision 12:3f4d9cb7dd8a:

#include "mbed.h"
#include "N5110.h"
#define DIRECTION_TOLERANCE 0.1// Tolerance of Joystick 

BusOut myleds(p24,p23,p22); //External LEDS
InterruptIn StartButton(p18);//Start button
N5110 lcd(p7,p8,p9,p10,p11,p13,p26); //PWR, SCE, RST, DC, MOSI, SCLK, LED
AnalogIn bright(p20);//Pot to adjust brightness
Ticker timer; //Create ticker object
DigitalIn Jbutton(p17);// Joystick Button
AnalogIn xPot(p15);// Joystick x-direction
AnalogIn yPot(p16);// Joystick y-direction
int i=3; // Pacman's starting position
int j = 3;
int buttonflag=0; // flag for pause button 
InterruptIn button(p18);//Pause button
Ticker pollJoystick; // timer to regularly read the joystick

int coinflag = 1;
int coinflag2 = 1;
int coinflag3 = 1;
int coinflag4 = 1;
int coinflag5 = 1;
int coinflag6 = 1;
int coinflag7 = 1;
int coinflag8 = 1;
int coinflag9 = 1;
int coinflag10 = 1;
int coinflag11= 1;
int coinflag12 = 1;
int coinflag13 = 1;
int coinflag14 = 1;
int coinflag15 = 1;
int coinflag16 = 1;
int coinflag17 = 1;
int coinflag18 = 1;
int coinflag19 = 1;
int coinflag20 = 1;
int coinflag21 = 1;
int coinflag22 = 1;


enum DirectionName { // create enumerated type (0,1,2,3 etc. for direction)
    UP,         // could be extended for diagonals etc.
    DOWN,
    LEFT,
    RIGHT,
    CENTRE,
    UNKNOWN
};

typedef struct JoyStick Joystick; // struct for Joystick
struct JoyStick {
    float x;    // current x value
    float x0;   // 'centred' x value
    float y;    // current y value
    float y0;   // 'centred' y value
    int button; // button state (assume pull-down used, so 1 = pressed, 0 = unpressed)
    DirectionName direction;  // current direction
};

Joystick joystick; // create struct variable


void calibrateJoystick() // read default positions of the joystick to calibrate later readings
{
    button.mode(PullDown);
    // must not move during calibration
    joystick.x0 = xPot;  // initial positions in the range 0.0 to 1.0 (0.5 if centred exactly)
    joystick.y0 = yPot;
}

void updateJoystick()
{

    joystick.x = xPot - joystick.x0; // read current joystick values relative to calibrated values (in range -0.5 to 0.5, 0.0 is centred)
    joystick.y = yPot - joystick.y0;
    joystick.button = button; // read button state

    // calculate direction depending on x,y values
    // tolerance allows a little lee-way in case joystick not exactly in the stated direction
    if ( fabs(joystick.y) < DIRECTION_TOLERANCE && fabs(joystick.x) < DIRECTION_TOLERANCE) {
        joystick.direction = CENTRE;
    } else if ( joystick.y > DIRECTION_TOLERANCE && fabs(joystick.x) < DIRECTION_TOLERANCE) {
        joystick.direction = UP;
    } else if ( joystick.y < DIRECTION_TOLERANCE && fabs(joystick.x) < DIRECTION_TOLERANCE) {
        joystick.direction = DOWN;
    } else if ( joystick.x > DIRECTION_TOLERANCE && fabs(joystick.y) < DIRECTION_TOLERANCE) {
        joystick.direction = LEFT;
    } else if ( joystick.x < DIRECTION_TOLERANCE && fabs(joystick.y) < DIRECTION_TOLERANCE) {
        joystick.direction = RIGHT;
    } else {
        joystick.direction = UNKNOWN;
    }

}


void pressPause()
{
    buttonflag=!buttonflag;// set button flag 
}

void pause()
{
    button.rise(&pressPause); // event generated on rising edge 
    while (buttonflag){
        lcd.clear(); 
        lcd.printString("Pause", 25,21); 
        
        
        
        
        
        
        }
        
    
    
    
    
}

void drawMap()
{

    lcd.drawRect(39,0,3,10,1);//x-coordinate (top-left),y-coordinate(top-left), width, height, fill - 0 transparent (w/outline), 1 filled black, 2 filled white (wo/outline)
    lcd.drawRect(40,40,2,7,1);// T-shaped obstacle Vertical
    lcd.drawRect(7,8,23,2,1);// Left hand "Hook" shaped obstacle horizontal
    lcd.drawRect(51,8,24,2,1);//Right hand "Hook" shaped obstacle horizontal
    lcd.drawRect(0,18,3,29,1);// left hand border
    lcd.drawRect(78,18,5,29,1);// Right hand border
    lcd.drawRect(11,18,3,21,1);//Left hand C shape obstacle vertical
    lcd.drawRect(27,11,3,18,1);// Left hand "Hook" shaped obstacle vertical
    lcd.drawRect(35,37,12,2,1);//T-shaped obstacle Horizontal
    lcd.drawRect(67,18,3,21,1);// Right hand C shaped obstacle vertical
    lcd.drawRect(51,11,3,18,1);//Right hand "Hook" shaped obstacle vertical
    lcd.drawRect(38,18,5,11,1);// Central block
    lcd.drawRect(15,18,4,2,1);//Left hand C shape obstacle horizontal
    lcd.drawRect(22,27,5,2,1);//Left hand "Hook" shaped obstacle
    lcd.drawRect(15,37,4,2,1);//Left hand C shape obstacle
    lcd.drawRect(55,27,3,2,1);// Right hand "Hook" shaped obstacle
    lcd.drawRect(63,18,4,2,1);//Right hand C shape obstacle horizontal
    lcd.drawRect(63,37,4,2,1);//Right hand C shape obstacle

}

void checkRight()
{


    int r = 0;//Variable for right movement check
    if(lcd.getPixel (i+3,j))//Check 4 pixels to the right
        r++;
    if(lcd.getPixel (i+4,j))//Check 5 pixels to the right
        r++;
    if (r==2) { // Condition for solid obstacles
        i--;

    }
}
void checkLeft()
{
    int l = 0 ; // Variable for left movement check
    if(lcd.getPixel (i-3,j))//Check 4 pixels to the left
        l++;
    if(lcd.getPixel (i-4,j))//Check 5 pixels to the left
        l++;
    if (l==2) { // Condition for solid obstacles
        i++;


    }
}
void checkUp()
{
    int u=0;
    if(lcd.getPixel (i,j-3))//Check 4 pixels above
        u++;
    if(lcd.getPixel (i,j-4))//Check 5 pixels above
        u++;
    if(lcd.getPixel (i+1,j-4))
        u++;
    if(lcd.getPixel (i-1,j-4))
        u++;
    if(lcd.getPixel (i-2,j-4))
        u++;
    if (u>=4) { // Condition for solid obstacles
        j++;
    }
}

void checkDown()
{
    int d=0;
    if(lcd.getPixel (i,j+3))//Check 4 pixels below
        d++;
    if(lcd.getPixel (i,j+4))//Check 5 pixels below
        d++;
    if(lcd.getPixel (i+1,j+4))
        d++;
    if(lcd.getPixel (i-1,j+4))
        d++;
     if(lcd.getPixel (i-2,j+4))
        d++;
    if (d>=4) { // Condition for solid obstacles
        j--;
    }
}
void drawCoin()
{

    if (coinflag) {
        lcd.drawCircle(10,3,2,0);//Coin  1.1
    }
    if (coinflag2) {
        lcd.drawCircle(22,3,2,0);//Coin 1.2
    }
    if (coinflag3) {
        lcd.drawCircle(35,3,2,0); //Coin  1.3
    }
    if (coinflag4) {
        lcd.drawCircle(47,3,2,0);//Coin  1.4
    }
    if (coinflag5) {
        lcd.drawCircle(65,3,2,0);//Coin  1.5
    }

    if (coinflag6) {
        lcd.drawCircle(80,3,2,0);//Coin 1.6
    }
    if (coinflag7) {
        lcd.drawCircle(41,14,2,0);//Coin  2.2
    }
    if (coinflag8) {
        lcd.drawCircle(35,44,2,0);// Coin 5.3
    }
    if (coinflag9) {
        lcd.drawCircle(47,44,2,0);//Coin 5.4
    }
    if (coinflag10) {
        lcd.drawCircle(34,24,2,0); //Coin  3.3
    }
    if (coinflag11) {
        lcd.drawCircle(47,24,2,0); //Coin  3.4
    }

    if (coinflag12) {
        lcd.drawCircle(41,33,2,0);//Coin  4
    }


    if (coinflag13) {
        lcd.drawCircle(7,44,2,0);//Coin 5.1
    }

    if (coinflag14) {
        lcd.drawCircle(74,44,2,0);//Coin 5.6
    }
    if (coinflag15) {
        lcd.drawCircle(21,44,2,0);//Coin 5.2
    }
    if (coinflag16) {
        lcd.drawCircle(61,44,2,0);//Coin 5.5
    }
    if (coinflag17) {
        lcd.drawCircle(7,24,2,0); //Coin  3.1
    }
    if (coinflag18) {
        lcd.drawCircle(19,24,2,0); //Coin  3.2
    }
    if (coinflag19) {
        lcd.drawCircle(62,24,2,0); //Coin 3.5
    
    }
    
    if (coinflag20) {
        lcd.drawCircle(74,24,2,0); //Coin 3.6
    }
     if (coinflag21) {
        lcd.drawCircle(15,15,2,0);//Coin 2.1
     }   
     if (coinflag22) {
        lcd.drawCircle(65,15,2,0);//Coin 2.3
     }   
}

void checkCoin()



{
    if (i==10 &&j==3) {
        coinflag=0;
    }
    if (i==22 &&j==3) {
        coinflag2=0;
    }
    if (i==35 &&j==3) {
        coinflag3=0;
    }
    if (i==47 &&j==3) {
        coinflag4=0;
    }
    if (i==65 &&j==3) {
        coinflag5=0;
    }
    if (i==80 &&j==3) {
        coinflag6=0;
    }
    if (i== 41&&j==14) {
        coinflag7=0;
    }
    if (i==35 &&j==44) {
        coinflag8=0;
    }
    if (i==47&&j==44) {
        coinflag9=0;
    }
    if (i==34 &&j==24) {
        coinflag10=0;
    }
    if (i==47 &&j==24) {
        coinflag11=0;
    }
    if (i==41 &&j==33) {
        coinflag12=0;
    }
    if (i==7 &&j==44) {
        coinflag13=0;
    }
    if (i==74 &&j==44) {
        coinflag14=0;
    }
    if (i==21 &&j==44) {
        coinflag15=0;
    }
    if (i==61 &&j==44) {
        coinflag16=0;
    }
    if (i== 7&&j==24) {
        coinflag17=0;
    }
    if (i==19 &&j==24) {
        coinflag18=0;
    }
    if (i==62 &&j==24) {
        coinflag19=0;
    }
    if (i==74 &&j==24) {
        coinflag20=0;
    }
    if (i==15 &&j==15) {
        coinflag21=0;
    }
    if (i==65 &&j==15) {
        coinflag22=0;
    }
}

void Joystickcheck()
{
    if (joystick.direction == UP) {
        j--;
    }
    if (joystick.direction == DOWN) {
        j++;
    }
    if (joystick.direction == LEFT) {
        i--;
    }
    if (joystick.direction == RIGHT) {
        i++;
    }

}
void drawPacman()
{
    if(joystick.direction == RIGHT) {
        lcd.setPixel(i,j);
        lcd.setPixel(i-1,j);//Direction dependent (left and right)
        lcd.setPixel(i-2,j);//Direction dependent (left and right)
        lcd.setPixel(i-3,j);//Direction dependent (left and right)
        lcd.setPixel(i,j+1);
        lcd.setPixel(i,j+2);
        lcd.setPixel(i,j+3);
        lcd.setPixel(i,j-1);
        lcd.setPixel(i,j-2);
        lcd.setPixel(i,j-3);
        lcd.setPixel(i-1,j+3);
        lcd.setPixel(i+1,j+3);
        lcd.setPixel(i,j-1);
        lcd.setPixel(i-2,j+2);
        lcd.setPixel(i-1,j+2);
        lcd.setPixel(i+2,j+2);
        lcd.setPixel(i+1,j+2);
        lcd.setPixel(i-1,j+1);//Direction dependent (left and right)
        lcd.setPixel(i-2,j+1);//Direction dependent (left and right)
        lcd.setPixel(i-3,j+1);//Direction dependent (left and right)
        lcd.setPixel(i-1,j-1);//Direction dependent (left and right)
        lcd.setPixel(i-2,j-1);//Direction dependent (left and right)
        lcd.setPixel(i-3,j-1);//Direction dependent (left and right)
        lcd.setPixel(i-1,j-2);
        lcd.setPixel(i-2,j-2);
        lcd.setPixel(i+1,j-2);
        lcd.setPixel(i+2,j-2);
        lcd.setPixel(i+1,j-3);
        lcd.setPixel(i-1,j-3);


    }   else if(joystick.direction == LEFT) {
        lcd.setPixel(i,j);
        lcd.setPixel(i,j+1);
        lcd.setPixel(i,j+2);
        lcd.setPixel(i,j+3);
        lcd.setPixel(i,j-1);
        lcd.setPixel(i,j-2);
        lcd.setPixel(i,j-3);
        lcd.setPixel(i-1,j+3);
        lcd.setPixel(i+1,j+3);
        lcd.setPixel(i,j-1);
        lcd.setPixel(i-2,j+2);
        lcd.setPixel(i-1,j+2);
        lcd.setPixel(i+2,j+2);
        lcd.setPixel(i+1,j+2);
        lcd.setPixel(i-1,j-2);
        lcd.setPixel(i-2,j-2);
        lcd.setPixel(i+1,j-2);
        lcd.setPixel(i+2,j-2);
        lcd.setPixel(i+1,j-3);
        lcd.setPixel(i-1,j-3);
        lcd.setPixel(i+1,j);//Direction dependent(left and right)
        lcd.setPixel(i+2,j);//Direction dependent(left and right)
        lcd.setPixel(i+3,j);//Direction dependent (left and right)
        lcd.setPixel(i+1,j+1);//Direction dependent (left and right)
        lcd.setPixel(i+2,j+1);//Direction dependent (left and right)
        lcd.setPixel(i+3,j+1);//Direction dependent (left and right)
        lcd.setPixel(i+1,j-1);//Direction dependent (left and right)
        lcd.setPixel(i+2,j-1);//Direction dependent (left and right)
        lcd.setPixel(i+3,j-1);//Direction dependent (left and right)



    } else if(joystick.direction == UP) {
        lcd.setPixel(i,j);
        lcd.setPixel(i+1,j);
        lcd.setPixel(i+2,j);
        lcd.setPixel(i+3,j);
        lcd.setPixel(i-1,j);
        lcd.setPixel(i-2,j);
        lcd.setPixel(i-3,j);
        lcd.setPixel(i,j+1);//Direction dependent(Up and Down)
        lcd.setPixel(i+1,j+1);//Direction dependent(Up and Down)
        lcd.setPixel(i+2,j+1);
        lcd.setPixel(i+3,j+1);
        lcd.setPixel(i-1,j+1);//Direction dependent(Up and Down)
        lcd.setPixel(i-2,j+1);
        lcd.setPixel(i-3,j+1);
        lcd.setPixel(i,j+2);//Direction dependent(Up and Down)
        lcd.setPixel(i+1,j+2);//Direction dependent(Up and Down)
        lcd.setPixel(i+2,j+2);
        lcd.setPixel(i-1,j+2);//Direction dependent(Up and Down)
        lcd.setPixel(i-2,j+2);
        lcd.setPixel(i-1,j+3);//Direction dependent(Up and Down)
        lcd.setPixel(i,j+3);//Direction dependent(Up and Down)
        lcd.setPixel(i+1,j+3);//Direction dependent(Up and Down)
        lcd.setPixel(i-2,j-1);
        lcd.setPixel(i-3,j-1);
        lcd.setPixel(i+3,j-1);
        lcd.setPixel(i+2,j-1);
        lcd.setPixel(i+2,j-2);
        lcd.setPixel(i-2,j-2);








    } else if (joystick.direction == DOWN) {
        lcd.setPixel(i,j);
        lcd.setPixel(i+1,j);
        lcd.setPixel(i+2,j);
        lcd.setPixel(i+3,j);
        lcd.setPixel(i-1,j);
        lcd.setPixel(i-2,j);
        lcd.setPixel(i-3,j);
        lcd.setPixel(i,j-1);//Direction dependent(Up and Down)
        lcd.setPixel(i+1,j-1);//Direction dependent(Up and Down)
        lcd.setPixel(i+2,j+1);
        lcd.setPixel(i+3,j+1);
        lcd.setPixel(i-1,j-1);//Direction dependent(Up and Down)
        lcd.setPixel(i-2,j+1);
        lcd.setPixel(i-3,j+1);
        lcd.setPixel(i,j-2);//Direction dependent(Up and Down)
        lcd.setPixel(i+1,j-2);//Direction dependent(Up and Down)
        lcd.setPixel(i+2,j+2);
        lcd.setPixel(i-1,j-2);//Direction dependent(Up and Down)
        lcd.setPixel(i-2,j+2);
        lcd.setPixel(i-1,j-3);//Direction dependent(Up and Down)
        lcd.setPixel(i,j-3);//Direction dependent(Up and Down)
        lcd.setPixel(i+1,j-3);//Direction dependent(Up and Down)
        lcd.setPixel(i-2,j-1);
        lcd.setPixel(i-3,j-1);
        lcd.setPixel(i+3,j-1);
        lcd.setPixel(i+2,j-1);
        lcd.setPixel(i+2,j-2);
        lcd.setPixel(i-2,j-2);

    } else {
        lcd.setPixel(i,j);
        lcd.setPixel(i-1,j);//Direction dependent (left and right)
        lcd.setPixel(i-2,j);//Direction dependent (left and right)
        lcd.setPixel(i-3,j);//Direction dependent (left and right)
        lcd.setPixel(i,j+1);
        lcd.setPixel(i,j+2);
        lcd.setPixel(i,j+3);
        lcd.setPixel(i,j-1);
        lcd.setPixel(i,j-2);
        lcd.setPixel(i,j-3);
        lcd.setPixel(i-1,j+3);
        lcd.setPixel(i+1,j+3);
        lcd.setPixel(i,j-1);
        lcd.setPixel(i-2,j+2);
        lcd.setPixel(i-1,j+2);
        lcd.setPixel(i+2,j+2);
        lcd.setPixel(i+1,j+2);
        lcd.setPixel(i-1,j+1);//Direction dependent (left and right)
        lcd.setPixel(i-2,j+1);//Direction dependent (left and right)
        lcd.setPixel(i-3,j+1);//Direction dependent (left and right)
        lcd.setPixel(i-1,j-1);//Direction dependent (left and right)
        lcd.setPixel(i-2,j-1);//Direction dependent (left and right)
        lcd.setPixel(i-3,j-1);//Direction dependent (left and right)
        lcd.setPixel(i-1,j-2);
        lcd.setPixel(i-2,j-2);
        lcd.setPixel(i+1,j-2);
        lcd.setPixel(i+2,j-2);
        lcd.setPixel(i+1,j-3);
        lcd.setPixel(i-1,j-3);
    }
}


void Boundarycheck()
{
    if (i<3) {
        i=3;
    }
    if (j<3) {
        j=3;
    }
    if (j>44) {
        j=44;
    }
    if (i>80) {
        i=80;
    }
}

int main()
{

    lcd.init();
    calibrateJoystick();  // get centred values of joystick
    pollJoystick.attach(&updateJoystick,1.0/10.0);  // read joystick 10 times per second
    
    while(1) {
        lcd.setBrightness(bright);
        lcd.clear();
        pause();
        drawPacman();
        drawMap();
        drawCoin();
        checkRight();
        checkLeft();
        checkDown();
        checkUp();
        Joystickcheck();
        Boundarycheck();
        checkCoin();
        lcd.refresh();
        wait_ms(35);

    }
}