ELEC2645 (2015/16) / Mbed 2 deprecated frdm_Asteroids

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Dependencies:   N5110 mbed

main.h@0:00f0deb0a029, 2016-05-05 (annotated)

Committer:
Martin48
Date:
Thu May 05 13:45:31 2016 +0000
Revision:
0:00f0deb0a029
Almost complete game asteroids somewhat temporamental

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Martin48 0:00f0deb0a029 1 /**
Martin48 0:00f0deb0a029 2 @file main.h
Martin48 0:00f0deb0a029 3 @brief Header file containing functions prototypes, defines and global variables.
Martin48 0:00f0deb0a029 4 @brief Shows examples of creating Doxygen documentation.
Martin48 0:00f0deb0a029 5 @brief Revision 1.0.
Martin48 0:00f0deb0a029 6 @author Martin Woodhams
Martin48 0:00f0deb0a029 7 @date March 2015
Martin48 0:00f0deb0a029 8 */
Martin48 0:00f0deb0a029 9
Martin48 0:00f0deb0a029 10 #ifndef MAIN_H
Martin48 0:00f0deb0a029 11 #define MAIN_H
Martin48 0:00f0deb0a029 12
Martin48 0:00f0deb0a029 13 #include "mbed.h"
Martin48 0:00f0deb0a029 14 #include "N5110.h"
Martin48 0:00f0deb0a029 15 #include "Arrays.h"
Martin48 0:00f0deb0a029 16
Martin48 0:00f0deb0a029 17
Martin48 0:00f0deb0a029 18 #define UP 0
Martin48 0:00f0deb0a029 19 #define UPRIGHT 1
Martin48 0:00f0deb0a029 20 #define RIGHT 2
Martin48 0:00f0deb0a029 21 #define DOWNRIGHT 3
Martin48 0:00f0deb0a029 22 #define DOWN 4
Martin48 0:00f0deb0a029 23 #define DOWNLEFT 5
Martin48 0:00f0deb0a029 24 #define LEFT 6
Martin48 0:00f0deb0a029 25 #define UPLEFT 7
Martin48 0:00f0deb0a029 26 #define STAY 8
Martin48 0:00f0deb0a029 27
Martin48 0:00f0deb0a029 28 #define DIRECTION_TOLERANCE 0.025f
Martin48 0:00f0deb0a029 29
Martin48 0:00f0deb0a029 30 /**
Martin48 0:00f0deb0a029 31 @namespace lcd
Martin48 0:00f0deb0a029 32 @brief This allows the mbed to interface with the N5110 screen
Martin48 0:00f0deb0a029 33 @param VCC - PTE26
Martin48 0:00f0deb0a029 34 @param SCE - PTA0
Martin48 0:00f0deb0a029 35 @param RST - PTC4
Martin48 0:00f0deb0a029 36 @param D/C - PTD0
Martin48 0:00f0deb0a029 37 @param MOSI - PTD2
Martin48 0:00f0deb0a029 38 @param SCLK - PTD1
Martin48 0:00f0deb0a029 39 @param LED - PTC3
Martin48 0:00f0deb0a029 40 */
Martin48 0:00f0deb0a029 41 N5110 lcd (PTE26 , PTA0 , PTC4 , PTD0 , PTD2 , PTD1 , PTC3);
Martin48 0:00f0deb0a029 42
Martin48 0:00f0deb0a029 43 /**
Martin48 0:00f0deb0a029 44 @namespace b1
Martin48 0:00f0deb0a029 45 @brief Sets up a button that allows for interrupts to be called on pin PTB19
Martin48 0:00f0deb0a029 46 */
Martin48 0:00f0deb0a029 47 InterruptIn b1 (PTB19);
Martin48 0:00f0deb0a029 48
Martin48 0:00f0deb0a029 49 /**
Martin48 0:00f0deb0a029 50 @namespace b2
Martin48 0:00f0deb0a029 51 @brief Sets up a button that allows for interrupts to be called on pin PTB18
Martin48 0:00f0deb0a029 52 */
Martin48 0:00f0deb0a029 53 InterruptIn b2 (PTB18);
Martin48 0:00f0deb0a029 54
Martin48 0:00f0deb0a029 55 /**
Martin48 0:00f0deb0a029 56 @namespace xPot
Martin48 0:00f0deb0a029 57 @brief Sets up the potentiometer that determines the horizontal position of the joystick
Martin48 0:00f0deb0a029 58 */
Martin48 0:00f0deb0a029 59 AnalogIn xPot(PTB2);
Martin48 0:00f0deb0a029 60
Martin48 0:00f0deb0a029 61 /**
Martin48 0:00f0deb0a029 62 @namespace yPot
Martin48 0:00f0deb0a029 63 @brief Sets up the potentiometer that determines the vertical position of the joystick
Martin48 0:00f0deb0a029 64 */
Martin48 0:00f0deb0a029 65 AnalogIn yPot(PTB3);
Martin48 0:00f0deb0a029 66
Martin48 0:00f0deb0a029 67 /**
Martin48 0:00f0deb0a029 68 @namespace ticker
Martin48 0:00f0deb0a029 69 @brief A ticker that is attatched to a time based interrupt to allow the screen to periodically refresh
Martin48 0:00f0deb0a029 70 */
Martin48 0:00f0deb0a029 71 Ticker ticker;
Martin48 0:00f0deb0a029 72
Martin48 0:00f0deb0a029 73 /**
Martin48 0:00f0deb0a029 74 @namespace timer
Martin48 0:00f0deb0a029 75 @brief A timer that is used as the seed to generate a random number for asteroid creation
Martin48 0:00f0deb0a029 76 */
Martin48 0:00f0deb0a029 77 Timer timer;
Martin48 0:00f0deb0a029 78
Martin48 0:00f0deb0a029 79 volatile int g_b1_flag = 0; /*!<A global flag which is called on when the interrupt on b1 is called */
Martin48 0:00f0deb0a029 80 volatile int g_b2_flag = 0; /*!<A global flag which is called on when the interrupt on b2 is called */
Martin48 0:00f0deb0a029 81 volatile int g_timer_flag = 0; /*!<A global flag which is called on when the timer flags */
Martin48 0:00f0deb0a029 82 int score = 0; /*!< A variable that keeps track of the score the player is achieving */
Martin48 0:00f0deb0a029 83 int bullet_number=0; /*!< A variable that keeps count of how many bullets are on screen */
Martin48 0:00f0deb0a029 84 int shipDirection = 0; /*!< A variable determined by the FSM, this variable chooses which ship array is displayed and which direction bullets are shot*/
Martin48 0:00f0deb0a029 85 int game_over = 0; /*!< A variable that determines when the game is over */
Martin48 0:00f0deb0a029 86 int printFlag = 0; /*!<a flag to show that the joystick can be read*/
Martin48 0:00f0deb0a029 87 int state = 1; /*!< set initial state of the FSM state 1 UP*/
Martin48 0:00f0deb0a029 88 int direction = UP; /*!<the initial direction of the ship is to travel UP */
Martin48 0:00f0deb0a029 89 int settings = 0; /*!<aa flag to tell if the settings option has been selected*/
Martin48 0:00f0deb0a029 90
Martin48 0:00f0deb0a029 91 struct State {
Martin48 0:00f0deb0a029 92 int shipDirection; // current state
Martin48 0:00f0deb0a029 93 int next_state[9]; // next state can be up determined by up to 9 different inputs
Martin48 0:00f0deb0a029 94
Martin48 0:00f0deb0a029 95 }; /*!< creates the structure for the FSM*/
Martin48 0:00f0deb0a029 96
Martin48 0:00f0deb0a029 97 typedef const struct State STyp;
Martin48 0:00f0deb0a029 98
Martin48 0:00f0deb0a029 99 STyp fsm[8] = {
Martin48 0:00f0deb0a029 100 {0,{0,1,1,1,1,7,7,7,0}},
Martin48 0:00f0deb0a029 101 {1,{0,1,2,2,2,2,0,0,1}},
Martin48 0:00f0deb0a029 102 {2,{1,1,2,3,3,3,3,1,2}},
Martin48 0:00f0deb0a029 103 {3,{2,2,2,3,4,4,4,4,3}},
Martin48 0:00f0deb0a029 104 {4,{5,3,3,3,4,5,5,5,4}},
Martin48 0:00f0deb0a029 105 {5,{6,6,4,4,4,5,6,6,5}},
Martin48 0:00f0deb0a029 106 {6,{7,7,7,5,5,5,6,7,6}},
Martin48 0:00f0deb0a029 107 {7,{0,0,0,0,6,6,6,7,7}},
Martin48 0:00f0deb0a029 108
Martin48 0:00f0deb0a029 109 }; /*!< The FSM has 9 possible inputs and 8 possible outcomes the inputs are taken from the joystick direction and go as following
Martin48 0:00f0deb0a029 110 UP = 0, UPRIGHT = 1, RIGHT = 2, DOWNRIGHT = 3, DOWN = 4, DOWNLEFT = 5, LEFT = 6, UPLEFT = 7, STAY = 8
Martin48 0:00f0deb0a029 111 The ships direction follows the same pattern and the FSM aims to get the ship to face that direction in the quickest way possible
Martin48 0:00f0deb0a029 112 If the joystick is pushed in a direction completly opposite to the ship the ship will spin clockwise
Martin48 0:00f0deb0a029 113 */
Martin48 0:00f0deb0a029 114
Martin48 0:00f0deb0a029 115 /**
Martin48 0:00f0deb0a029 116 A function which alters the b1 flag from 0 to 1 when an interrupt occurs
Martin48 0:00f0deb0a029 117 */
Martin48 0:00f0deb0a029 118 void b1_isr();
Martin48 0:00f0deb0a029 119
Martin48 0:00f0deb0a029 120 /**
Martin48 0:00f0deb0a029 121 A function which alters the b2 flag from 0 to 1 when an interrupt occurs
Martin48 0:00f0deb0a029 122 */
Martin48 0:00f0deb0a029 123 void b2_isr();
Martin48 0:00f0deb0a029 124
Martin48 0:00f0deb0a029 125 /**
Martin48 0:00f0deb0a029 126 A function which alters the timer flag from 0 to 1 when the time interrupt occurs
Martin48 0:00f0deb0a029 127 */
Martin48 0:00f0deb0a029 128 void timer_isr();
Martin48 0:00f0deb0a029 129
Martin48 0:00f0deb0a029 130 /**
Martin48 0:00f0deb0a029 131 Reads the initial positon of the joystick and sets this as centered
Martin48 0:00f0deb0a029 132 */
Martin48 0:00f0deb0a029 133 void calibrateJoystick();
Martin48 0:00f0deb0a029 134
Martin48 0:00f0deb0a029 135 /**
Martin48 0:00f0deb0a029 136 Compares the current positon of the joystick to the centred position of the joystick and calculates which way the joystick has been pushed
Martin48 0:00f0deb0a029 137 */
Martin48 0:00f0deb0a029 138 void updateJoystick();
Martin48 0:00f0deb0a029 139
Martin48 0:00f0deb0a029 140 /**
Martin48 0:00f0deb0a029 141 The main game function in it the
Martin48 0:00f0deb0a029 142 */
Martin48 0:00f0deb0a029 143 void game();
Martin48 0:00f0deb0a029 144
Martin48 0:00f0deb0a029 145 /**
Martin48 0:00f0deb0a029 146 A function that reads the ships direction and fires a bullet in that direction.
Martin48 0:00f0deb0a029 147 The function also checks any exsisting bullets and moves them in the appropriate direction.
Martin48 0:00f0deb0a029 148 */
Martin48 0:00f0deb0a029 149 void shoots();
Martin48 0:00f0deb0a029 150
Martin48 0:00f0deb0a029 151 /**
Martin48 0:00f0deb0a029 152 A function that using random numbers determines which size asteroid to generate and from which direction
Martin48 0:00f0deb0a029 153 The function also checks to see if there is a bullet or ship in front of it, if there isn't the asteroid moves forward
Martin48 0:00f0deb0a029 154 */
Martin48 0:00f0deb0a029 155 void asteroidMove();
Martin48 0:00f0deb0a029 156
Martin48 0:00f0deb0a029 157 /**
Martin48 0:00f0deb0a029 158 checks to see if the bullet has left the screen without hitting anything if it has the bullet is erased
Martin48 0:00f0deb0a029 159 */
Martin48 0:00f0deb0a029 160 void checkbullet();
Martin48 0:00f0deb0a029 161
Martin48 0:00f0deb0a029 162 #endif