ELEC2645 (2015/16) / Mbed 2 deprecated 2645_ProjectCode

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Dependencies:   N5110 mbed

main.cpp@1:9d69901e18d0, 2016-04-27 (annotated)

Committer:
el15s3p
Date:
Wed Apr 27 22:27:56 2016 +0000
Revision:
1:9d69901e18d0
Parent:
0:d3a050703801
Child:
2:9e791f33c49f
semi-working menu with moving cursor, still very glitchy. To do: game, instructions, difficulty, scores

Who changed what in which revision?

UserRevisionLine numberNew contents of line
el15s3p 0:d3a050703801 1 #include "mbed.h"
el15s3p 0:d3a050703801 2 #include "N5110.h"
el15s3p 0:d3a050703801 3
el15s3p 0:d3a050703801 4 #define DIRECTION_TOLERANCE 0.05
el15s3p 0:d3a050703801 5
el15s3p 0:d3a050703801 6 // VCC, SCE, RST, D/C, MOSI, SCLK, LED
el15s3p 0:d3a050703801 7 N5110 lcd (PTE26 , PTA0 , PTC4 , PTD0 , PTD2 , PTD1 , PTC3);
el15s3p 0:d3a050703801 8
el15s3p 0:d3a050703801 9 // connections for joystick
el15s3p 1:9d69901e18d0 10 DigitalIn button(PTB11);
el15s3p 0:d3a050703801 11 AnalogIn xPot(PTB2);
el15s3p 0:d3a050703801 12 AnalogIn yPot(PTB3);
el15s3p 0:d3a050703801 13
el15s3p 0:d3a050703801 14 AnalogIn Pot1(PTB10);
el15s3p 0:d3a050703801 15
el15s3p 0:d3a050703801 16 BusOut leds(LED1,LED2);
el15s3p 0:d3a050703801 17 DigitalOut led1(LED1);
el15s3p 0:d3a050703801 18 DigitalOut led2(LED2);
el15s3p 0:d3a050703801 19
el15s3p 0:d3a050703801 20
el15s3p 0:d3a050703801 21 InterruptIn sw2 (SW2);
el15s3p 0:d3a050703801 22 DigitalIn buttonA(PTB18);
el15s3p 0:d3a050703801 23 DigitalIn buttonB(PTB19);
el15s3p 0:d3a050703801 24 PwmOut buzzer(PTA2);
el15s3p 0:d3a050703801 25
el15s3p 0:d3a050703801 26 // timer to regularly read the joystick
el15s3p 0:d3a050703801 27 Ticker pollJoystick;
el15s3p 0:d3a050703801 28
el15s3p 0:d3a050703801 29 enum DirectionName {
el15s3p 0:d3a050703801 30 UP,
el15s3p 0:d3a050703801 31 DOWN,
el15s3p 0:d3a050703801 32 LEFT,
el15s3p 0:d3a050703801 33 RIGHT,
el15s3p 0:d3a050703801 34 CENTRE,
el15s3p 0:d3a050703801 35 UNKNOWN
el15s3p 0:d3a050703801 36 };
el15s3p 0:d3a050703801 37
el15s3p 0:d3a050703801 38 // struct for Joystick
el15s3p 0:d3a050703801 39 typedef struct JoyStick Joystick;
el15s3p 0:d3a050703801 40 struct JoyStick {
el15s3p 0:d3a050703801 41 float x; // current x value
el15s3p 0:d3a050703801 42 float x0; // 'centred' x value
el15s3p 0:d3a050703801 43 float y; // current y value
el15s3p 0:d3a050703801 44 float y0; // 'centred' y value
el15s3p 0:d3a050703801 45 int button; // button state (assume pull-down used, so 1 = pressed, 0 = unpressed)
el15s3p 0:d3a050703801 46 DirectionName direction; // current direction
el15s3p 0:d3a050703801 47 };
el15s3p 0:d3a050703801 48 // create struct variable
el15s3p 0:d3a050703801 49 Joystick joystick;
el15s3p 0:d3a050703801 50
el15s3p 0:d3a050703801 51 int printFlag = 0;
el15s3p 0:d3a050703801 52
el15s3p 1:9d69901e18d0 53 // function prototypes
el15s3p 1:9d69901e18d0 54 void calibrateJoystick();
el15s3p 1:9d69901e18d0 55 void updateJoystick();
el15s3p 1:9d69901e18d0 56
el15s3p 1:9d69901e18d0 57 int menuSelect = 2;
el15s3p 1:9d69901e18d0 58
el15s3p 0:d3a050703801 59 int main()
el15s3p 0:d3a050703801 60 {
el15s3p 1:9d69901e18d0 61 for (; 2 > menuSelect < 5;) {
el15s3p 1:9d69901e18d0 62 calibrateJoystick(); // get centred values of joystick
el15s3p 1:9d69901e18d0 63 pollJoystick.attach(&updateJoystick,1.0/10.0); // read joystick 10 times per second
el15s3p 1:9d69901e18d0 64 lcd.init();
el15s3p 1:9d69901e18d0 65 lcd.clear();
el15s3p 1:9d69901e18d0 66 lcd.normalMode();
el15s3p 1:9d69901e18d0 67 lcd.printString("Comet Crusher!",0,0);
el15s3p 1:9d69901e18d0 68 lcd.printString("Start",10,2);
el15s3p 1:9d69901e18d0 69 lcd.printString("Instructions",10,3);
el15s3p 1:9d69901e18d0 70 lcd.printString("Difficulty",10,4);
el15s3p 1:9d69901e18d0 71 lcd.printString("Scores",10,5);
el15s3p 1:9d69901e18d0 72 lcd.printString(">",5,menuSelect);
el15s3p 1:9d69901e18d0 73 lcd.refresh();
el15s3p 1:9d69901e18d0 74
el15s3p 1:9d69901e18d0 75 if (menuSelect == 2) {
el15s3p 1:9d69901e18d0 76 if (joystick.direction == DOWN) {
el15s3p 1:9d69901e18d0 77 menuSelect = 3;
el15s3p 1:9d69901e18d0 78 sleep();
el15s3p 1:9d69901e18d0 79 } else if (joystick.direction == UP) {
el15s3p 1:9d69901e18d0 80 menuSelect = 5;
el15s3p 1:9d69901e18d0 81 sleep();
el15s3p 1:9d69901e18d0 82 }
el15s3p 1:9d69901e18d0 83 lcd.refresh();
el15s3p 1:9d69901e18d0 84 sleep();
el15s3p 1:9d69901e18d0 85 }
el15s3p 1:9d69901e18d0 86 if (menuSelect == 3) {
el15s3p 1:9d69901e18d0 87 if (joystick.direction == DOWN) {
el15s3p 1:9d69901e18d0 88 menuSelect = 4;
el15s3p 1:9d69901e18d0 89 sleep();
el15s3p 1:9d69901e18d0 90 } else if (joystick.direction == UP) {
el15s3p 1:9d69901e18d0 91 menuSelect = 2;
el15s3p 1:9d69901e18d0 92 sleep();
el15s3p 1:9d69901e18d0 93 }
el15s3p 1:9d69901e18d0 94 lcd.refresh();
el15s3p 1:9d69901e18d0 95 sleep();
el15s3p 1:9d69901e18d0 96 }
el15s3p 1:9d69901e18d0 97 if (menuSelect == 4) {
el15s3p 1:9d69901e18d0 98 if (joystick.direction == DOWN) {
el15s3p 1:9d69901e18d0 99 menuSelect = 5;
el15s3p 1:9d69901e18d0 100 sleep();
el15s3p 1:9d69901e18d0 101 } else if (joystick.direction == UP) {
el15s3p 1:9d69901e18d0 102 menuSelect = 3;
el15s3p 1:9d69901e18d0 103 sleep();
el15s3p 1:9d69901e18d0 104 }
el15s3p 1:9d69901e18d0 105 lcd.refresh();
el15s3p 1:9d69901e18d0 106 sleep();
el15s3p 1:9d69901e18d0 107 }
el15s3p 1:9d69901e18d0 108 if (menuSelect == 5) {
el15s3p 1:9d69901e18d0 109 if (joystick.direction == DOWN) {
el15s3p 1:9d69901e18d0 110 menuSelect = 2;
el15s3p 1:9d69901e18d0 111 sleep();
el15s3p 1:9d69901e18d0 112 } else if (joystick.direction == UP) {
el15s3p 1:9d69901e18d0 113 menuSelect = 4;
el15s3p 1:9d69901e18d0 114 sleep();
el15s3p 1:9d69901e18d0 115 }
el15s3p 1:9d69901e18d0 116 lcd.refresh();
el15s3p 1:9d69901e18d0 117 sleep();
el15s3p 1:9d69901e18d0 118 }
el15s3p 1:9d69901e18d0 119 sleep();
el15s3p 0:d3a050703801 120 }
el15s3p 0:d3a050703801 121 }
el15s3p 1:9d69901e18d0 122 void game()
el15s3p 0:d3a050703801 123 {
el15s3p 0:d3a050703801 124 }
el15s3p 0:d3a050703801 125
el15s3p 1:9d69901e18d0 126 void difficultySet()
el15s3p 1:9d69901e18d0 127 {
el15s3p 1:9d69901e18d0 128 }
el15s3p 1:9d69901e18d0 129
el15s3p 1:9d69901e18d0 130 void highScore()
el15s3p 1:9d69901e18d0 131 {
el15s3p 1:9d69901e18d0 132 }
el15s3p 1:9d69901e18d0 133
el15s3p 1:9d69901e18d0 134 void instructions()
el15s3p 0:d3a050703801 135 {
el15s3p 0:d3a050703801 136 }
el15s3p 0:d3a050703801 137
el15s3p 1:9d69901e18d0 138 void calibrateJoystick()
el15s3p 0:d3a050703801 139 {
el15s3p 1:9d69901e18d0 140 button.mode(PullDown);
el15s3p 1:9d69901e18d0 141 // must not move during calibration
el15s3p 1:9d69901e18d0 142 joystick.x0 = xPot; // initial positions in the range 0.0 to 1.0 (0.5 if centred exactly)
el15s3p 1:9d69901e18d0 143 joystick.y0 = yPot;
el15s3p 0:d3a050703801 144 }
el15s3p 1:9d69901e18d0 145 void updateJoystick()
el15s3p 1:9d69901e18d0 146 {
el15s3p 1:9d69901e18d0 147 // read current joystick values relative to calibrated values (in range -0.5 to 0.5, 0.0 is centred)
el15s3p 1:9d69901e18d0 148 joystick.x = xPot - joystick.x0;
el15s3p 1:9d69901e18d0 149 joystick.y = yPot - joystick.y0;
el15s3p 1:9d69901e18d0 150 // read button state
el15s3p 1:9d69901e18d0 151 joystick.button = button;
el15s3p 0:d3a050703801 152
el15s3p 1:9d69901e18d0 153 // calculate direction depending on x,y values
el15s3p 1:9d69901e18d0 154 // tolerance allows a little lee-way in case joystick not exactly in the stated direction
el15s3p 1:9d69901e18d0 155 if ( fabs(joystick.y) < DIRECTION_TOLERANCE && fabs(joystick.x) < DIRECTION_TOLERANCE) {
el15s3p 1:9d69901e18d0 156 joystick.direction = CENTRE;
el15s3p 1:9d69901e18d0 157 } else if ( joystick.y > DIRECTION_TOLERANCE && fabs(joystick.x) < DIRECTION_TOLERANCE) {
el15s3p 1:9d69901e18d0 158 joystick.direction = DOWN;
el15s3p 1:9d69901e18d0 159 } else if ( joystick.y < DIRECTION_TOLERANCE && fabs(joystick.x) < DIRECTION_TOLERANCE) {
el15s3p 1:9d69901e18d0 160 joystick.direction = UP;
el15s3p 1:9d69901e18d0 161 } else if ( joystick.x > DIRECTION_TOLERANCE && fabs(joystick.y) < DIRECTION_TOLERANCE) {
el15s3p 1:9d69901e18d0 162 joystick.direction = LEFT;
el15s3p 1:9d69901e18d0 163 } else if ( joystick.x < DIRECTION_TOLERANCE && fabs(joystick.y) < DIRECTION_TOLERANCE) {
el15s3p 1:9d69901e18d0 164 joystick.direction = RIGHT;
el15s3p 1:9d69901e18d0 165 } else {
el15s3p 1:9d69901e18d0 166 joystick.direction = UNKNOWN;
el15s3p 1:9d69901e18d0 167 }
el15s3p 1:9d69901e18d0 168
el15s3p 1:9d69901e18d0 169 // set flag for printing
el15s3p 1:9d69901e18d0 170 printFlag = 1;
el15s3p 1:9d69901e18d0 171 }