Revision 10:dbcb96fa049d, committed 2015-05-08

Comitter:

MBirney

Date:

Fri May 08 23:47:17 2015 +0000

Parent:

9:77b83754460c

Commit message:

Michael Birney Final Snake Program

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/PowerControl.lib	Fri May 08 23:47:17 2015 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/JST2011/code/PowerControl/#d0fa2aeb02a4

--- a/main.cpp	Fri May 01 08:53:21 2015 +0000
+++ b/main.cpp	Fri May 08 23:47:17 2015 +0000
@@ -15,6 +15,7 @@
     EASY,
     MEDIUM,
     HARD,
+    
 };
 
 // create enumerated type (0,1 for Game Mode)
@@ -383,7 +384,7 @@
 }
 
 
-void updateSnakeArray()
+void updateSnakeVector()
 {
 // code to prevent snake moving in opposite direction to its current path of travel
     if (joystick.direction==LEFT && previousDirection==RIGHT) { // if snake is travelling right but joystick is left
@@ -468,27 +469,28 @@
 void gameOverTune() //
 {
 
- //   float frequency[]={440,659};
+//   float frequency[]={440,659};
     //float beat[]={1,1,};
-    
-      Buzzer.period(1.0/(220)); // set PWM period 1/f  A
-Buzzer=0.5; // set duty cycle
-wait(0.5); // wait time 
-Buzzer.period(1.0/(164)); // E
-wait(0.5);//
-Buzzer=0;// set duty cycle 0
 
-  //   set PWM period
+    Buzzer.period(1.0/(220)); // set PWM period 1/f  A
+    Buzzer=0.5; // set duty cycle
+    wait(0.5); // wait time
+    Buzzer.period(1.0/(164)); // E
+    wait(0.5);//
+    Buzzer=0;// set duty cycle 0
+
+    //   set PWM period
 
 }
 
-void eatFoodTune(){
-      Buzzer.period(1.0/(440)); // set PWM period 1/f  A
-Buzzer=0.5; // set duty cycle
-wait(0.1); // wait time 
-Buzzer=0;// set duty cycle 0
-    }
-    
+void eatFoodTune()
+{
+    Buzzer.period(1.0/(440)); // set PWM period 1/f  A
+    Buzzer=0.5; // set duty cycle
+    wait(0.1); // wait time
+    Buzzer=0;// set duty cycle 0
+}
+
 void gameOver()
 {
     leds=1;
@@ -512,8 +514,8 @@
     lcd.printString("Your Score" ,12,0);// print score
     lcd.printString("=" ,34,1);
 
-    int updatedScore=score;
-    int length = sprintf(buffer,"%2d",updatedScore);
+    
+    int length = sprintf(buffer,"%2d",score);
 
     if (length <= 14)  // if string will fit on display
         lcd.printString(buffer,40,1);
@@ -578,15 +580,13 @@
                 // snakeY.push_back(foodY[0]+2);
                 break;
         }
-eatFoodTune();
+        eatFoodTune();
         lcd.drawRect(snakeX[0],snakeY[0],1,1,1); // draw the new tail
 
-        int updatedScore; // to store updated score
-
-
-        updatedScore= score+5; // 5 points for every food eaten
-        score=updatedScore;
-        int length = sprintf(buffer,"%2d",updatedScore);// print updated score to screen
+     
+       score+=5; // 5 points for every food eaten
+        
+        int length = sprintf(buffer,"%2d",score);// print updated score to screen
 
         if (length <= 14)  // if string will fit on display
             lcd.printString(buffer,0,0);
@@ -690,19 +690,21 @@
 
 int main()
 {
- startButton.setSampleFrequency();
+    startButton.setSampleFrequency(); //for pindetect
+    button.setSampleFrequency();// for pindetect
     lcd.init();
-    resetButton.mode(PullDown);
+    resetButton.mode(PullDown); 
     startButton.mode(PullDown);
     button.mode(PullDown);
-  //  startButton.rise(&startButtonPressed);
     startButton.attach_asserted( &startButtonPressed );
     resetButton.rise(&resetButtonPressed);
-    button.rise(&pauseButtonPressed);
+    button.attach_asserted(&pauseButtonPressed);
     displaySplash();
     leds=1;
     wait(4);
-
+int result = semihost_powerdown(); //USB POWERDOWN
+ PHY_PowerDown(); //ETHERNET POWERDOWN
+ 
     while(1) {
         leds=1;// red light
         startUpMenu();
@@ -736,11 +738,12 @@
             joystick.direction=RIGHT; // make sure when game reset that joystick is reset to right
             startingSnake(); // print starting snake
             randomiseFood(); // show random food
-            int score=5;// initial score is 5
+         score=5;// initial score is 5
+        
             int length = sprintf(buffer,"%2d",score);
             if (length <= 14)  // if string will fit on display
                 lcd.printString(buffer,0,0);
-            // lcd.drawRect(0,0,83,7,0);
+          
             lcd.refresh();
             startGame.attach(&updateGameISR,gameSpeed); // start game isr speed determined by difficulty chosen
 
@@ -753,7 +756,7 @@
                     updateGameFlag=0; // reset flag
                     updateJoystick(); // check joystick direction
 
-                    updateSnakeArray(); // update the array
+                    updateSnakeVector(); // update the Vector
                     for (int i=0; i<snakeX.size(); i++) { // for all elements of snake draw 2x2 image
                         lcd.drawRect(snakeX[i],snakeY[i],1,1,1);
 
@@ -772,11 +775,9 @@
                     }
 
                 }
-
+                sleep();
             }
         }
 
-
-
     }
 }
\ No newline at end of file

--- a/main.h	Fri May 01 08:53:21 2015 +0000
+++ b/main.h	Fri May 08 23:47:17 2015 +0000
@@ -11,8 +11,16 @@
 #include "mbed.h"
 #include "N5110.h"
 #include "PinDetect.h"
+#include "PowerControl/PowerControl.h"
+#include "PowerControl/EthernetPowerControl.h"
 #define DIRECTION_TOLERANCE 0.1
 
+#define USR_POWERDOWN (0x104)
+int semihost_powerdown(){
+    
+uint32_t arg;
+return __semihost(USR_POWERDOWN,& arg);
+}
 
 AnalogIn pot(p20);
 PwmOut Buzzer(p21);
@@ -27,43 +35,226 @@
 
 /** 
 @namespace myleds
-@brief connections lcd mosi connections for nokia N5110
+@brief busout to onboard mbed LEDS for debug
 */ 
 
 BusOut myleds(LED1,LED2,LED3,LED4);
+
+/** 
+@namespace leds
+@brief bus output for game indicator leds 
+*/ 
 BusOut leds(p22,p23,p24);
+
+/** 
+@namespace startButton
+@PinDetect for start button ISR
+*/ 
 PinDetect startButton(p5);
+/** 
+@namespace resetButton
+@Interrupt in for reset button ISR
+*/ 
 InterruptIn resetButton(p6);
-int score=5;
-Ticker pollJoystick;
+
+int score=5; /*!< integer to store user score */
+
+/** 
+@namespace startGame
+@brief Ticker to set updateGameFlag 
+*/ 
 Ticker startGame;
-char buffer[14];
+
+
+char buffer[14]; /*!< stores data to print to screen */
 int length = sprintf(buffer,"%2d",score); // print formatted data to buffer
 // it is important the format specifier ensures the length will fit in the buffer
 // connections for joystick
-InterruptIn button(p17);
+
+/** 
+@namespace button 
+@brief Joysitck button GPIO 
+*/ 
+PinDetect button(p17);
+/** 
+@namespace xPot 
+@brief joystick x pot GPIO
+*/ 
 AnalogIn xPot(p15);
+/** 
+@namespace yPot 
+@brief joystick y pot GPIO 
+*/ 
 AnalogIn yPot(p16);
 //for debug
+
+/** 
+@namespace serial 
+@brief Print to terminal for debug 
+*/ 
 Serial serial(USBTX,USBRX);
+
 //forGame
-int snake[84][47];
-bool gamePlaying =0;
-bool gamePaused=0;
-vector<int> snakeX (5); // vector to store all x coordinates of snake
-vector<int> snakeY (5,27);// vector to store all y coordinates of snake
-int foodX[1];// store x value of food
-int foodY[1];// store y value of food
-int gameState=0;// 
+
+bool gamePaused=0; /*!< bool to store paused state */
+vector<int> snakeX (5); /*!<vector to store all x coordinates of snake */ 
+vector<int> snakeY (5,27);/*!< vector to store all y coordinates of snake */ 
+int foodX[1];/*!< int to store x value of food */
+int foodY[1];/*!< int to store y value of food */
+int gameState=0;/*!<indicator for various game states */ 
 
 
-float gameSpeed;//change depending on difficulty selected
-int updateGameFlag=0;
+float gameSpeed;/*!< changes depending on difficulty selected */
+int updateGameFlag=0; /*!< ISR to update game */
+
+
+// GAME MENU
 
 /** 
 Displays a Snake Logo Splash Screen 
 */
 void displaySplash();
 
+/** 
+Reads default positions of the joystick to calibrate later readings 
+*/
+void calibrateJoystick();
+
+/** 
+Reads X and Y pots and determines what direction joystick is in 
+*/
+void updateJoystick();
+
+/** 
+Displays easy selected on display and updates gameSpeed variable
+*/
+void easySelected();
+/** 
+Displays Medium selected on display and updates gameSpeed variable
+*/
+void mediumSelected();
+/** 
+Displays Hard selected on display and updates gameSpeed variable
+*/
+void hardSelected() ;
+
+/** 
+Displays classicMode selected on display and updates gameMode variable
+*/
+void classicModeSelected();
+
+/** 
+Displays BoundaryMode selected on display and updates gameMode variable
+*/
+void boundaryModeSelected();
+
+/** 
+Uses joystick direction to determine what difficulty too update to
+*/
+void checkSelectedGameMode();
+
+/** 
+Uses joystick direction to determine what game mode too update to
+*/
+void checkSelectedDifficulty();
+
+
+//GAMEPLAY
+
+
+/** 
+resizes the vector back to 5 incase game is reset
+prints to screen using coordinates stored in the snakeX and snakeY vectors
+drawRect used for 2x2 snake
+*/
+void startingSnake();
+
+
+/** 
+Funtion to generate random food 
+*/
+void randomiseFood();
+
+
+/** 
+prints a solid boundary around screen for use in BOUNDARY mode
+*/
+void hardBoundary();
+
+/** 
+Prints a dotted boundary around the screen for use in CLASSIC mode
+*/
+void classicBoundary();
 
 
+/** 
+Uses joystick direction and previous joysitck direction to determine new direction of snake
+Clears Tail of Snake
+Elements in SnakeX and Y are shifted along one to the right 
+New snake head cordinates are added to last element of vector depending on direction
+*/
+void updateSnakeVector();
+
+/** 
+triggers Buzzer to play when gameover
+*/
+void gameOverTune();
+
+/** 
+called when game is over.
+displays final score for user 
+*/
+void gameOver();
+
+
+/** 
+called in boundary mode
+everytime snake updates checks for a collision with boundary
+*/
+void checkForCollision();
+
+
+/** 
+Everytime snake is updated 
+compares coordinates of snake to the food to see if they match
+*/
+void checkForFood();
+
+
+/** 
+function called when pindetect startButton is triggered
+*/
+void startButtonPressed();
+
+
+/** 
+Reads from brightness potentiometer to update lcd brightness
+*/
+void updateBrightness();
+
+
+/** 
+function called by updateGame timer
+*/
+void updateGameISR();
+
+
+/** 
+For debug. Prints content of snakeX and snakeY vectors
+*/
+void printVectorContent();
+
+/** 
+function called when interupt occurs on joystick button
+*/
+void pauseButtonPressed();
+
+
+/** 
+Compares all elements in snake vectors against head of snake
+@param i - integer signifying element in snake vector
+*/
+void checkForCollisionWithSelf(int i);
+
+
+