Diff: main.cpp

Revision:

26:4cfeb2c29326

Parent:

25:55331fbafc67

Child:

27:c1e337f1b99f

diff -r 55331fbafc67 -r 4cfeb2c29326 main.cpp
--- a/main.cpp	Tue May 05 17:39:08 2015 +0000
+++ b/main.cpp	Fri May 08 10:39:48 2015 +0000
@@ -5,30 +5,12 @@
 
 */
 #include "main.h"
-PwmOut buzzer(p25);
-float frequency[]= {494,494,988,988,740,622,988,587,622,440,1047,784,659,1047,784,659,494,988,740,622,988,587,622,659,698,698,740,784,784,831,880,988}; //frequency array
-
-float beat[]= {0.5,0.5,0.5,0.5,0.5,1,1,0.5,0.5,0.5,0.5,0.5,1,1,0.5,0.5,0.5,0.5,0.5,1,1,0.25,0.5,0.25,0.25,0.5,0.25,0.25,0.5,1}; //beat array
-Ticker ghost;
-int followflag=0;
-Ticker score;
-int scoreflag=0;
-int score1;
-int e =1000;
 LocalFileSystem local("local"); // define local file system
- char buffer1[14];
- char buffer[14];
-PwmOut PWM1(p23); //Yellow pin of RGB
-PwmOut PWM2(p22);//Green pin of RGB
-PwmOut PWM3(p24);//Red pin of RGB
-
-
 // Function Prototypes
 void pressStart();
-
-void  pause();
-void  winningcondition();
-void  losingcondition();
+void pause();
+void winningcondition();
+void losingcondition();
 void  drawMap();
 void  drawCoin();
 void  drawGhost();
@@ -52,51 +34,42 @@
     scoreflag=1;
 }
 
-
-
 void ghostfollow()
 {
 
-
-
-    if( y<j) { // I
+    if( y<j) { // If ghost id above pacman, move downwards
         y++;
     }
 
-    if(y>j) { // If ghost is directly below pacman, move upwards
+    if(y>j) { // If ghost is  below pacman, move upwards
         y--;
 
     }
-    if ( x>i) {
+    if ( x>i) {// If ghost is to the right of pacman, move left
         x--;
     }
-    if (x<i) {
+    if (x<i) {// If ghost is to the left of pacman, move right
         x++;
     }
-
 }
 
 void tune()
 {
 
-    for (int q=0; q<=31; q++) {
-        buzzer.period(1/(frequency[q])); // set PWM period
+    for (int q=0; q<32; q++) {
+        buzzer.period(1.0/(frequency[q])); // set PWM period
         buzzer=0.5; // set duty cycle
         wait(0.5*beat[q]); // hold for beat period
-        buzzer=0;
-
     }
+    buzzer=0;
 }
 
-
 void  creditscreen()
 {
 
     lcd.printString("Thank You",15,1);
     lcd.printString("For",25,20);
     lcd.printString("Playing",16,3);
-
-
 }
 void calibrateJoystick() // read default positions of the joystick to calibrate later readings
 {
@@ -108,7 +81,6 @@
 
 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
@@ -128,22 +100,18 @@
     } else {
         joystick.direction = UNKNOWN;
     }
-
 }
 
 void timerExpired() // ISR for timeout function
 {
     timerflag=1;
-
 }
 
-
 void pressPause()// Interrupt Service Routine (ISR) for pause button
 {
     buttonflag=!buttonflag;// set button flag
 }
 
-
 void pause()
 {
     timer.attach(&timerExpired,15.0);// Call timeout after 15 seconds
@@ -325,9 +293,6 @@
         lcd.setPixel(i-1,j-3);
     }
 }
-
-
-
 void drawGhost()
 {
     lcd.setPixel(x,y);
@@ -354,9 +319,6 @@
     lcd.setPixel(x-2,y-2);
     lcd.setPixel(x-2,y+2);
 }
-
-
-
 void drawPacman()
 {
     if(joystick.direction == RIGHT) {
@@ -538,18 +500,15 @@
         j--;
     }
 }
-
-
-
-
-void startscreen(){
-     lcd.printString("Welcome to",15,1);
+void startscreen()
+{
+    lcd.printString("Welcome to",15,1);
     lcd.printString("Pacman",20,2);
     lcd.printString("Press Start",6,3);
     button.rise(&pressStart); // event generated on rising edge
     PWM1.period_us(25);// Set time period
-    if(buttonflag1==1){
-        lcd.clear(); 
+    if(buttonflag1==1) {
+        lcd.clear();
         lcd.printString("Ready",21,2);
         PWM1 = 0.0;//Duty Cycle of Green pin
         PWM2 = 0.0;//Duty cycle of Yellow pin
@@ -568,19 +527,17 @@
         PWM3 = 0.0;//Duty Cycle of Red pin
         wait(1.0);
         lcd.clear();
-        drawMap();  
+        lcd.refresh();
+        drawMap();
         buttonflag1++;
-        
     }
-       if(buttonflag1==0) {
-           startscreen();
-            }
-
+    if(buttonflag1==0) {
+        startscreen();
+    }
 }
-
 void WastedCheck()
 {
-    
+
     if(w<=8) {
         WastedMode();
         drawPacman2();
@@ -588,272 +545,250 @@
         Joystickcheck();
         drawPacman();
     }
+}
+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(void)
+{
+    for (int k=0; k<28; k++) {
+        lcd.drawCircle(coins[k][0], coins[k][1],2,0);
+    }
+}
+void checkCoin()
+{
+    for (int c=0; c<28; c++) {
+        if(i==coins[c][0]&& j==coins[c][1]) {
+            coins[c][0]=90;
+            coins[c][1]=50;
+            w--;
+        }
+    }
+}
+void Joystickcheck()
+{
+    if (joystick.direction == UP) {
+        j--;
+    }
+    if (joystick.direction == DOWN) {
+        j++;
+    }
+    if (joystick.direction == LEFT) {
+        i--;
+    }
+    if (joystick.direction == RIGHT) {
+        i++;
+    }
+
+}
+void Boundarycheck()   // Set boundary conditions so that ghost and pacman cannot move off screen
+{
+    if (i<3) {
+        i=3;
+    }
+    if (j<3) {
+        j=3;
+    }
+    if (j>44) {
+        j=44;
+    }
+    if (i>80) {
+        i=80;
+    }
+}
+void winningcondition()   // Player wins if all coins are eaten
+{
+    if(w==0) {
+        win=true;
+    }
+}
+
+void losingcondition()   //Player loses if pacman is eaten by ghost
+{
+    if (i==x && j==y) {
+        win = false;
+        lose = true;
+    }
+}
+
+void writeScore()
+{
+
+    FILE* fp = fopen("/local/pacmanScore.txt","w"); // open file
+    fprintf(fp,"%i",e); // print string to file
+    fclose(fp); // close file
+}
+
+void readScore()
+{
+    FILE* File2 = fopen ("/local/pacmanScore.txt","r"); // open file for reading
+
+    fscanf(File2,"%i",&score1);
+    sprintf(buffer1,"%i",score1);
+    fclose(File2); // close file
+
+    //lcd.printString(buffer1,10,0); // display read data value
+}
+void compareScore()
+{
+    readScore();
+    if(e>=score1) {
+
+        lcd.printString("Yay!!",25,0);
+        lcd.printString("New High Score",0,1);
+        writeScore();
+        readScore();
+        lcd.printString(buffer1,25,4);
+    }
+    if (e<score1) {
+        sprintf(buffer,"Score=%i",e);
+        readScore();
+        lcd.printString("High Score=",0,0);
+        lcd.printString(buffer1,0,1); // display read data value
+        lcd.printString("Your",0,3);
+        lcd.printString(buffer,0,4);
+    }
+}
+int main()
+{
+
+    lcd.init();
+    calibrateJoystick();  // get centred values of joystick
+    pollJoystick.attach(&updateJoystick,1.0/10.0);  // read joystick 10 times per second
+    PHY_PowerDown();
+    ghost.attach(&ghosttimerexpired,0.2);
+    score.attach(&scoreexpired,1.0);
+    tune();
+    while(win==false&& lose==false) {
+        startscreen();
+        lcd.setBrightness(bright);
+        lcd.clear();
+        pause();
+        winningcondition();
+        losingcondition();
+        drawMap();
+        drawCoin();
+        drawGhost();
+        checkRight();
+        checkLeft();
+        checkDown();
+        checkUp();
+        Boundarycheck();
+        WastedCheck();
+        checkCoin();
+        if (followflag) {
+            followflag=0;
+            ghostfollow();
+        }
+        if (scoreflag) {
+            scoreflag=0;
+            e--;
+        }
+        lcd.refresh();
+        wait_ms(35);
+
+    }
+    if (win==true) {
+        lcd.setBrightness(bright);
+        lcd.clear();
+        lcd.printString("Well Done!", 25,21);
+        tune();
+        lcd.clear();
+        compareScore();
+        wait(5.0);
+        lcd.clear();
+        creditscreen();
+    }
+    if (lose==true) {
+        lcd.setBrightness(bright);
+        lcd.clear();
+        lcd.printString("Game Over",10,3);
+        tune();
+        lcd.clear();
+        creditscreen();
+    }
 }
 
 
-    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(void) {
-        for (int k=0; k<28; k++) {
-            lcd.drawCircle(coins[k][0], coins[k][1],2,0);
-        }
-    }
-
-
-    void checkCoin() {
-        for (int c=0; c<28; c++) {
-            if(i==coins[c][0]&& j==coins[c][1]) {
-                coins[c][0]=90;
-                coins[c][1]=50;
-                w--;
-            }
-        }
-    }
-
-
-    void Joystickcheck() {
-        if (joystick.direction == UP) {
-            j--;
-        }
-        if (joystick.direction == DOWN) {
-            j++;
-        }
-        if (joystick.direction == LEFT) {
-            i--;
-        }
-        if (joystick.direction == RIGHT) {
-            i++;
-        }
-
-    }
- 
-    void Boundarycheck() { // Set boundary conditions so that ghost and pacman cannot move off screen
-        if (i<3) {
-            i=3;
-        }
-        if (j<3) {
-            j=3;
-        }
-        if (j>44) {
-            j=44;
-        }
-        if (i>80) {
-            i=80;
-        }
-    }
-
-
-    void winningcondition() { // Player wins if all coins are eaten
-        if(w==0) {
-            win=true;
-        }
-    }
-
-    void losingcondition() { //Player loses if pacman is eaten by ghost
-        if (i==x && j==y) {
-            win = false;
-            lose = true;
-        }
-    }
-  
-   void writeScore() {
-        
-        FILE* fp = fopen("/local/pacmanScore.txt","w"); // open file
-        fprintf(fp,"%i",e); // print string to file
-        fclose(fp); // close file
-        
-        
-
-    }
-
- void readScore(){
-       
-       
-      
-        FILE* File2 = fopen ("/local/pacmanScore.txt","r"); // open file for reading
-        
-        fscanf(File2,"%i",&score1);
-        sprintf(buffer1,"%i",score1);
-        fclose(File2); // close file
-        
-        //lcd.printString(buffer1,10,0); // display read data value
-}
-void compareScore(){ 
-        readScore();
-        if(e>=score1){
-           
-            lcd.printString("Yay!!",25,0);
-            lcd.printString("New High Score",0,1); 
-            
-              writeScore();
-            readScore(); 
-            lcd.printString(buffer1,25,4); 
-            
-           
-            } 
-        if (e<score1){
-             sprintf(buffer,"Score=%i",e); 
-             readScore(); 
-             lcd.printString("High Score=",0,0); 
-             lcd.printString(buffer1,0,1); // display read data value 
-             lcd.printString("Your",0,3);
-             lcd.printString(buffer,0,4); 
-             
-             
-        
-        
-        
-        
-        
-        }
-        }
-        
-        
-        int main() {
-
-            lcd.init();
-            calibrateJoystick();  // get centred values of joystick
-            pollJoystick.attach(&updateJoystick,1.0/10.0);  // read joystick 10 times per second
-            PHY_PowerDown();
-            ghost.attach(&ghosttimerexpired,0.2);
-            score.attach(&scoreexpired,1.0);
-            //tune();
-            while(win==false&& lose==false) {
-                startscreen();
-                lcd.setBrightness(bright);
-                lcd.clear();
-                pause();
-                winningcondition();
-                losingcondition();
-                drawMap();
-                drawCoin();
-                drawGhost();
-                checkRight();
-                checkLeft();
-                checkDown();
-                checkUp();
-                Boundarycheck();
-                WastedCheck();
-                checkCoin();
-                if (followflag) {
-                    followflag=0;
-                    ghostfollow();
-                }
-                if (scoreflag) {
-                    scoreflag=0;
-                    e--;
-                }
-                lcd.refresh();
-                wait_ms(35);
-
-            }
-            if (win==true) {
-                lcd.setBrightness(bright);
-                lcd.clear();
-                lcd.printString("Well Done!", 25,21);
-                tune();
-                lcd.clear();
-                compareScore(); 
-                wait(5.0); 
-                lcd.clear();
-                creditscreen();   
-
-            }
-            if (lose==true) {
-                lcd.setBrightness(bright);
-                lcd.clear();
-                lcd.printString("Game Over",10,3);
-                tune();
-                lcd.clear();
-                creditscreen();
-
-            }
-
-
-
-
-        }
-
-