Diff: main.h

Revision:

2:537b8388dc6a

Child:

3:cea8b85dbbdd

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.h	Sat May 07 14:35:21 2016 +0000
@@ -0,0 +1,210 @@
+/**
+@file main.h
+@brief Header file containing functions prototypes, defines and global variables.
+@brief Revision 1.0.
+@author Wu Chyi Woon
+@date  May 2015
+*/
+
+#include "mbed.h"
+#include "N5110.h"
+#include "SDFileSystem.h"
+#define JOYSTICK_TOLERANCE 0.1 ///direction tolerance of joystick
+
+/**  
+@namespace lcd
+@brief Define output pins for lcd display
+VCC,    SCE,  RST,    D/C,   MOSI,  SCLK,   LED
+*/
+
+N5110 lcd (PTE26 , PTA0 , PTC4 , PTD0 , PTD2 , PTD1 , PTC3);
+
+/**  
+@namespace sd
+@brief Define output pins for SD card
+VCC,    SCE,  RST,    D/C,   MOSI,  SCLK,   LED
+*/
+SDFileSystem sd(PTE3, PTE1, PTE2, PTE4, "sd");
+
+/// VARIABLES
+int pdirection;/*!< temporary direction store for constant movement function */
+int gamemode; /*!< Decides game mode */
+int HiScoreTable[5]; /*!< Array to store high scores (read from SD, write to SD) */
+int level_array[5]; /*!< Array to store levels for highscores when reading from SD */
+int level;  /*!< storage for current level */
+int fx,fy,score; /*!< global variables to hold data (food coordinates, score) */
+volatile int butt1_flag, butt2_flag; /*!< Button flags */
+float levelcalc ; /*!< storage for current speed depending on level */
+bool gameOver; /*!< decides if game has ended */
+FILE *fp; /*!< pointer for file storage system */
+
+const int width = (84 - 2) / 2 ; /*!< Constant variable for screen width (playable by snake)*/
+const int height = (48 - 4) / 2 ; /*!< Constant variable for screen height (playable by snake) */
+
+/** 
+enum for joystick directions
+*/
+enum DirectionName { //joystick directions
+    CENTRE,
+    UP,
+    LEFT,
+    DOWN,
+    RIGHT,
+    UNKNOWN
+};
+
+/** 
+struct for joystick data
+*/
+typedef struct joystick1 Joystick;
+struct joystick1 {
+    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; /// defines joystick
+
+typedef struct snake1 Snake;
+struct snake1 {
+    int hx; /// head x value
+    int hy; /// head y value
+    int length; /// snake length
+    int tailx[100],taily[100]; ///tail coordinates array
+};
+
+Snake snake; ///defines snake
+
+
+/// FUNCTIONS
+
+/**
+Initializes the display
+*/
+void init_display();
+
+/** 
+Function to draw game screen, is called by ticker timer. Draws the hard wall, snake body and food.
+*/
+void draw_screen();
+
+/**
+Calibrates the joystick to get the offset for centering
+*/
+void calibrate_joystick();
+
+/** 
+function to determine the direction the joystick is pointing
+*/
+void joystick_pos();
+
+/**
+generates food position by random
+*/
+void food_pos();
+
+
+/**
+moves the snake (head) according to joystick position. Called in the game logic.
+*/
+void snake_move();
+
+/**
+Main logic of the snake game including growth rule, death rule
+*/
+void snake_logic_1();
+
+/**
+Displays the gameOver screen
+*/
+void gameOver_screen();
+
+/**
+Displays the gamePaused screen, activated via button in game
+*/
+void gamePaused_screen();
+
+/** 
+Displays the main menu in game
+*/
+void main_menu();
+/**
+Displays the highscores according to level. Called from main menu
+*/
+void HiScoreScreen();
+
+/**
+Displays the settings screen, called from main menu
+*/
+void settingsScreen();
+
+/** 
+activates the gameplay, called from main menu
+*/
+void game();
+
+
+/**
+ISR for button 1 to activate flag
+*/
+void butt1_isr();
+
+/** 
+ISR for button 2 to activate flag
+*/
+void butt2_isr();
+
+/**  
+@namespace gameTimer1
+@brief Ticker Used for game logic
+*/
+Ticker gameTimer1;
+
+/**  
+@namespace gameTimer2
+@brief Ticker used for Draw Screen
+*/
+Ticker gameTimer2;
+
+/**  
+@namespace joystickTimer
+@brief Ticker used for joystick position
+*/
+Ticker joystickTimer;
+
+/**  
+@namespace xAxis
+@brief AnalogIn for xAxis of joystick
+*/
+AnalogIn xAxis(A0);
+
+/**  
+@namespace yAxis
+@brief AnalogIn for yAxis of joystick
+*/
+AnalogIn yAxis(A1);
+
+/**  
+@namespace Butt1
+@brief InterruptIn for joystick Button
+*/
+InterruptIn Butt1(PTB11);
+
+/**  
+@namespace Butt2
+@brief InterruptIn for button
+*/
+InterruptIn Butt2(PTB18);
+
+/**  
+@namespace LED
+@brief DigitalOut for LED
+*/
+DigitalOut LED(PTC2);
+
+
+
+