Diff: main.h

Revision:

11:f8478bc749e0

Parent:

10:7820b46476ea

Child:

12:825a402d230f

--- a/main.h	Sun May 01 11:11:19 2016 +0000
+++ b/main.h	Sun May 01 12:15:09 2016 +0000
@@ -1,6 +1,6 @@
 /**
 @file main.h
-@brief Header file containing functions prototypes, defines and global variables.
+@brief Header file containing functions prototypes, defines and global variables for the snake game
 @brief Revision 1.0.
 @author Meurig Phillips
 @date   April 2016
@@ -12,19 +12,91 @@
 #include "mbed.h"
 
 /**  
-@namespace button
-@brief GPIO input for joystick button
-@namespace xPot
-@brief GPIO input for joystick x potentiometer value
-@namespace yPot
-@brief GPIO input for joystick y potentiometer value
 @namespace greenLed
 @brief GPIO output for green LED
 @namespace redLed
 @brief GPIO output for red LED
+@namespace buzzer
+@brief GPIO output for buzzer
 */
-DigitalIn button(PTB18);
-AnalogIn xPot(PTB2);
-AnalogIn yPot(PTB3);
+
 DigitalOut greenLed(PTC2);
-DigitalOut redLed(PTA2);
\ No newline at end of file
+DigitalOut redLed(PTA2);
+//Beep buzzer(PTA1);
+
+Ticker pollJoystick; /// timer to regularly read the joystick
+Serial serial(USBTX,USBRX); /// serial communication for debugging
+Ticker gameTicker; /// timer to update game at regular intervals
+
+/// create enumerated type (0,1,2,3 etc. for current direction snake is travelling (not joystick reading))
+enum CurrentDirection {
+    up,
+    down,
+    left,
+    right,
+    centre,
+};
+CurrentDirection currentDirection = centre; /// intialise direction at beginning
+
+int randomX =  rand() % 83 + 1; /*!< random number in the range of 1 to 83 assigned to randomX */
+int randomY =  rand() % 47 + 1; /*!< random number in the range of 1 to 47 assigned to randomY */  
+int randomXoddEven = randomX%2; /*!< distinguish whether randomX is odd or even */
+int randomYoddEven = randomY%2; /*!< distinguish whether randomY is odd or even */
+int snakeTailX[100]; /*!< array for X coordinate of each snake segment */
+int snakeTailY[100]; /*!< array for Y coordinate of each snake segment */
+int snakeTailLength = 3; /*!< length of snake, intialised to 3 */
+int score = 0; /*!< score for current round */
+int top_score = 0; /*!< top score read and write from the SD card */
+int fruitValue = 10; /*!< value of the fruit */
+int i = 41; /*!< x origin of snake head, intialised at 41 */
+int j = 23; /*!< y origin of snake head, intialised at 23 */
+int prev_i; /*!< integer to store previous value of x/i */
+int prev_j; /*!< integer to store previous value of y/j */
+int prev2_i; /*!< integer to store previous, previous value of x/i */
+int prev2_j; /*!< integer to store previous, previous value of y/j */
+bool gamePlaying = false; /*!< bool to store whether the game is in play or not */
+
+
+/**
+Displays new fruit
+*/
+void generateFood();
+/**
+Generates new random coordinates for the fruit
+*/
+void newFruitXY();
+/**
+Main in game function, involves the input, logic and display
+*/
+void moveSnake();
+/**
+Restricted boundaries
+*/
+void hardWall();
+/**
+Map with obstacles in the way
+*/
+void specialMap();
+/**
+Infinite boundaries
+*/
+void wrapAround();
+/**
+Calculates score
+*/
+void scoreCalculation();
+/**
+Displayes scores when player dies
+*/
+void gameOver();
+/**
+Initilaises the snake so it's moving from left to right to begin with
+*/
+void initSnakeTail();
+/**
+Splash screen for the intro of the game
+*/
+void snakeIntro();
+
+
+#endif
\ No newline at end of file