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

Asteroids

Dependencies:   N5110 mbed

cometCrusher.h@3:520df1778717, 2016-05-05 (annotated)

Committer:
el15s3p
Date:
Thu May 05 14:59:03 2016 +0000
Revision:
3:520df1778717
Asteroids like game

Who changed what in which revision?

UserRevisionLine numberNew contents of line
el15s3p 3:520df1778717 1 #include "mbed.h"
el15s3p 3:520df1778717 2 #include "N5110.h"
el15s3p 3:520df1778717 3
el15s3p 3:520df1778717 4 #define DIRECTION_TOLERANCE 0.05L
el15s3p 3:520df1778717 5
el15s3p 3:520df1778717 6 // VCC, SCE, RST, D/C, MOSI, SCLK, LED
el15s3p 3:520df1778717 7 N5110 lcd (PTE26 , PTA0 , PTC4 , PTD0 , PTD2 , PTD1 , PTC3);
el15s3p 3:520df1778717 8
el15s3p 3:520df1778717 9 // connections for joystick
el15s3p 3:520df1778717 10 DigitalIn button(PTB11);
el15s3p 3:520df1778717 11 AnalogIn xPot(PTB2);
el15s3p 3:520df1778717 12 AnalogIn yPot(PTB3);
el15s3p 3:520df1778717 13
el15s3p 3:520df1778717 14 AnalogIn Pot1(PTB10);
el15s3p 3:520df1778717 15
el15s3p 3:520df1778717 16 PwmOut led1(PTC2);
el15s3p 3:520df1778717 17
el15s3p 3:520df1778717 18 //InterruptIn sw2 (SW2);
el15s3p 3:520df1778717 19 DigitalIn buttonA(PTB18);
el15s3p 3:520df1778717 20 DigitalIn buttonB(PTB19);
el15s3p 3:520df1778717 21 PwmOut buzzer(PTA2);
el15s3p 3:520df1778717 22
el15s3p 3:520df1778717 23 //volatile int g_sw2_flag = 0;
el15s3p 3:520df1778717 24 int shipShape [7][11] = {
el15s3p 3:520df1778717 25 {0,0,0,0,0,0,0,0,0,0,1},
el15s3p 3:520df1778717 26 {0,0,0,0,0,1,1,1,1,1,0},
el15s3p 3:520df1778717 27 {0,0,1,1,1,1,1,1,1,0,0},
el15s3p 3:520df1778717 28 {1,1,1,1,1,1,1,1,0,0,0},
el15s3p 3:520df1778717 29 {0,0,1,1,1,1,0,1,1,0,0},
el15s3p 3:520df1778717 30 {0,0,0,0,0,1,1,1,1,1,0},
el15s3p 3:520df1778717 31 {0,0,0,0,0,0,0,0,0,0,1}
el15s3p 3:520df1778717 32 };
el15s3p 3:520df1778717 33
el15s3p 3:520df1778717 34 void ship()
el15s3p 3:520df1778717 35 {
el15s3p 3:520df1778717 36 for(int shipR = 0; shipR <= 6; shipR ++) {
el15s3p 3:520df1778717 37 for(int shipC = 0; shipC <= 10; shipC ++) {
el15s3p 3:520df1778717 38 if(shipShape[shipR][shipC] == 0) {
el15s3p 3:520df1778717 39 lcd.clearPixel(shipR + 35,shipC + 20);
el15s3p 3:520df1778717 40 } else if(shipShape[shipR][shipC] == 1) {
el15s3p 3:520df1778717 41 lcd.setPixel(shipR + 35,shipC + 20);
el15s3p 3:520df1778717 42 }
el15s3p 3:520df1778717 43 }
el15s3p 3:520df1778717 44 }
el15s3p 3:520df1778717 45 lcd.refresh();
el15s3p 3:520df1778717 46
el15s3p 3:520df1778717 47 }
el15s3p 3:520df1778717 48
el15s3p 3:520df1778717 49
el15s3p 3:520df1778717 50 // timer to regularly read the joystick
el15s3p 3:520df1778717 51 Ticker pollJoystick;
el15s3p 3:520df1778717 52
el15s3p 3:520df1778717 53 enum DirectionName {
el15s3p 3:520df1778717 54 UP,
el15s3p 3:520df1778717 55 DOWN,
el15s3p 3:520df1778717 56 LEFT,
el15s3p 3:520df1778717 57 RIGHT,
el15s3p 3:520df1778717 58 CENTRE,
el15s3p 3:520df1778717 59 UNKNOWN
el15s3p 3:520df1778717 60 };
el15s3p 3:520df1778717 61
el15s3p 3:520df1778717 62 // struct for Joystick
el15s3p 3:520df1778717 63 typedef struct JoyStick Joystick;
el15s3p 3:520df1778717 64 struct JoyStick {
el15s3p 3:520df1778717 65 float x; // current x value
el15s3p 3:520df1778717 66 float x0; // 'centred' x value
el15s3p 3:520df1778717 67 float y; // current y value
el15s3p 3:520df1778717 68 float y0; // 'centred' y value
el15s3p 3:520df1778717 69 int button; // button state (assume pull-down used, so 1 = pressed, 0 = unpressed)
el15s3p 3:520df1778717 70 int buttonA; // buttonA state (assume pull-down used, so 1 = pressed, 0 = unpressed)
el15s3p 3:520df1778717 71 int buttonB; // buttonB state (assume pull-down used, so 1 = pressed, 0 = unpressed)
el15s3p 3:520df1778717 72 DirectionName direction; // current direction
el15s3p 3:520df1778717 73 };
el15s3p 3:520df1778717 74 // create struct variable
el15s3p 3:520df1778717 75 Joystick joystick;
el15s3p 3:520df1778717 76
el15s3p 3:520df1778717 77 int printFlag = 0;
el15s3p 3:520df1778717 78
el15s3p 3:520df1778717 79 // function prototypes
el15s3p 3:520df1778717 80 void calibrateJoystick();
el15s3p 3:520df1778717 81 void updateJoystick();
el15s3p 3:520df1778717 82
el15s3p 3:520df1778717 83 //void sw2_isr();
el15s3p 3:520df1778717 84
el15s3p 3:520df1778717 85 void menu();
el15s3p 3:520df1778717 86 void game();
el15s3p 3:520df1778717 87 void difficultySet();
el15s3p 3:520df1778717 88 void highScore();
el15s3p 3:520df1778717 89 void instructions();
el15s3p 3:520df1778717 90
el15s3p 3:520df1778717 91
el15s3p 3:520df1778717 92 int menuSelect = 2; //Default value of menuSelect so cursor is already on "Start" option
el15s3p 3:520df1778717 93 int menuUp = 1;//default value for indicator to show menu is up
el15s3p 3:520df1778717 94
el15s3p 3:520df1778717 95 int main()
el15s3p 3:520df1778717 96 {
el15s3p 3:520df1778717 97 while(1) {
el15s3p 3:520df1778717 98 calibrateJoystick(); // get centred values of joystick
el15s3p 3:520df1778717 99 pollJoystick.attach(&updateJoystick,1.0/10.0); // read joystick 10 times per second
el15s3p 3:520df1778717 100 while(menuUp == 1) {
el15s3p 3:520df1778717 101 menu();
el15s3p 3:520df1778717 102 }
el15s3p 3:520df1778717 103 }
el15s3p 3:520df1778717 104 }
el15s3p 3:520df1778717 105
el15s3p 3:520df1778717 106 void menu()
el15s3p 3:520df1778717 107 {
el15s3p 3:520df1778717 108 calibrateJoystick(); // get centred values of joystick
el15s3p 3:520df1778717 109 pollJoystick.attach(&updateJoystick,1.0/10.0); // read joystick 10 times per second
el15s3p 3:520df1778717 110
el15s3p 3:520df1778717 111 lcd.init();
el15s3p 3:520df1778717 112 lcd.clear();
el15s3p 3:520df1778717 113 lcd.normalMode();
el15s3p 3:520df1778717 114 lcd.printString("Comet Crusher!",0,0);
el15s3p 3:520df1778717 115 lcd.printString("Start",10,2);
el15s3p 3:520df1778717 116 lcd.printString("Instructions",10,3);
el15s3p 3:520df1778717 117 lcd.printString("Difficulty",10,4);
el15s3p 3:520df1778717 118 lcd.printString("Scores",10,5);
el15s3p 3:520df1778717 119 lcd.printString(">",5,menuSelect);
el15s3p 3:520df1778717 120 lcd.refresh();
el15s3p 3:520df1778717 121 sleep();
el15s3p 3:520df1778717 122 switch (menuSelect) {
el15s3p 3:520df1778717 123 case 2:
el15s3p 3:520df1778717 124 if (joystick.direction == DOWN) {
el15s3p 3:520df1778717 125 menuSelect = 3;
el15s3p 3:520df1778717 126 lcd.refresh();
el15s3p 3:520df1778717 127 wait (0.2);
el15s3p 3:520df1778717 128 sleep();
el15s3p 3:520df1778717 129 } else if (joystick.direction == UP) {
el15s3p 3:520df1778717 130 menuSelect = 5;
el15s3p 3:520df1778717 131 lcd.refresh();
el15s3p 3:520df1778717 132 wait (0.2);
el15s3p 3:520df1778717 133 sleep();
el15s3p 3:520df1778717 134 }
el15s3p 3:520df1778717 135 if (buttonA == 1) {
el15s3p 3:520df1778717 136 menuUp = 0;
el15s3p 3:520df1778717 137 game();
el15s3p 3:520df1778717 138 }
el15s3p 3:520df1778717 139 break;
el15s3p 3:520df1778717 140 case 3:
el15s3p 3:520df1778717 141 if (joystick.direction == DOWN) {
el15s3p 3:520df1778717 142 menuSelect = 4;
el15s3p 3:520df1778717 143 lcd.refresh();
el15s3p 3:520df1778717 144 wait (0.2);
el15s3p 3:520df1778717 145 sleep();
el15s3p 3:520df1778717 146 } else if (joystick.direction == UP) {
el15s3p 3:520df1778717 147 menuSelect = 2;
el15s3p 3:520df1778717 148 lcd.refresh();
el15s3p 3:520df1778717 149 wait (0.2);
el15s3p 3:520df1778717 150 sleep();
el15s3p 3:520df1778717 151 }
el15s3p 3:520df1778717 152 break;
el15s3p 3:520df1778717 153 case 4:
el15s3p 3:520df1778717 154 if (joystick.direction == DOWN) {
el15s3p 3:520df1778717 155 menuSelect = 5;
el15s3p 3:520df1778717 156 lcd.refresh();
el15s3p 3:520df1778717 157 wait (0.2);
el15s3p 3:520df1778717 158 sleep();
el15s3p 3:520df1778717 159 } else if (joystick.direction == UP) {
el15s3p 3:520df1778717 160 menuSelect = 3;
el15s3p 3:520df1778717 161 lcd.refresh();
el15s3p 3:520df1778717 162 wait (0.2);
el15s3p 3:520df1778717 163 sleep();
el15s3p 3:520df1778717 164 }
el15s3p 3:520df1778717 165 break;
el15s3p 3:520df1778717 166 case 5:
el15s3p 3:520df1778717 167 if (joystick.direction == DOWN) {
el15s3p 3:520df1778717 168 menuSelect = 2;
el15s3p 3:520df1778717 169 lcd.refresh();
el15s3p 3:520df1778717 170 wait (0.2);
el15s3p 3:520df1778717 171 sleep();
el15s3p 3:520df1778717 172 } else if (joystick.direction == UP) {
el15s3p 3:520df1778717 173 menuSelect = 4;
el15s3p 3:520df1778717 174 lcd.refresh();
el15s3p 3:520df1778717 175 wait (0.2);
el15s3p 3:520df1778717 176 sleep();
el15s3p 3:520df1778717 177 }
el15s3p 3:520df1778717 178 break;
el15s3p 3:520df1778717 179 }
el15s3p 3:520df1778717 180 }
el15s3p 3:520df1778717 181 void game()
el15s3p 3:520df1778717 182 {
el15s3p 3:520df1778717 183 // SW2 has a pull-up resistor, so the pin will be at 3.3 V by default
el15s3p 3:520df1778717 184 // and fall to 0 V when pressed. We therefore need to look for a falling edge
el15s3p 3:520df1778717 185 // on the pin to fire the interrupt
el15s3p 3:520df1778717 186 //sw2.fall(&sw2_isr);
el15s3p 3:520df1778717 187 //since SW2 has an external pull-up, we should disable to internal pull-down
el15s3p 3:520df1778717 188 // resistor that is enabled by default using InterruptIn
el15s3p 3:520df1778717 189 //sw2.mode(PullNone);
el15s3p 3:520df1778717 190
el15s3p 3:520df1778717 191 lcd.clear(); //Clear menu and start game
el15s3p 3:520df1778717 192 ship();
el15s3p 3:520df1778717 193 }
el15s3p 3:520df1778717 194
el15s3p 3:520df1778717 195 void difficultySet()
el15s3p 3:520df1778717 196 {
el15s3p 3:520df1778717 197 }
el15s3p 3:520df1778717 198
el15s3p 3:520df1778717 199 void highScore()
el15s3p 3:520df1778717 200 {
el15s3p 3:520df1778717 201 }
el15s3p 3:520df1778717 202
el15s3p 3:520df1778717 203 void instructions()
el15s3p 3:520df1778717 204 {
el15s3p 3:520df1778717 205 }
el15s3p 3:520df1778717 206
el15s3p 3:520df1778717 207
el15s3p 3:520df1778717 208
el15s3p 3:520df1778717 209
el15s3p 3:520df1778717 210 void calibrateJoystick()
el15s3p 3:520df1778717 211 {
el15s3p 3:520df1778717 212 button.mode(PullDown);
el15s3p 3:520df1778717 213 buttonA.mode(PullDown);
el15s3p 3:520df1778717 214 buttonB.mode(PullDown);
el15s3p 3:520df1778717 215
el15s3p 3:520df1778717 216 // must not move during calibration
el15s3p 3:520df1778717 217 joystick.x0 = xPot; // initial positions in the range 0.0 to 1.0 (0.5 if centred exactly)
el15s3p 3:520df1778717 218 joystick.y0 = yPot;
el15s3p 3:520df1778717 219 }
el15s3p 3:520df1778717 220 void updateJoystick()
el15s3p 3:520df1778717 221 {
el15s3p 3:520df1778717 222 // read current joystick values relative to calibrated values (in range -0.5 to 0.5, 0.0 is centred)
el15s3p 3:520df1778717 223 joystick.x = xPot - joystick.x0;
el15s3p 3:520df1778717 224 joystick.y = yPot - joystick.y0;
el15s3p 3:520df1778717 225 // read button state
el15s3p 3:520df1778717 226 joystick.button = button;
el15s3p 3:520df1778717 227 joystick.buttonA = buttonA;
el15s3p 3:520df1778717 228 joystick.buttonB = buttonB;
el15s3p 3:520df1778717 229
el15s3p 3:520df1778717 230 // calculate direction depending on x,y values
el15s3p 3:520df1778717 231 // tolerance allows a little lee-way in case joystick not exactly in the stated direction
el15s3p 3:520df1778717 232 if ( fabs(joystick.y) < DIRECTION_TOLERANCE && fabs(joystick.x) < DIRECTION_TOLERANCE) {
el15s3p 3:520df1778717 233 joystick.direction = CENTRE;
el15s3p 3:520df1778717 234 } else if ( joystick.y > DIRECTION_TOLERANCE && fabs(joystick.x) < DIRECTION_TOLERANCE) {
el15s3p 3:520df1778717 235 joystick.direction = DOWN;
el15s3p 3:520df1778717 236 } else if ( joystick.y < DIRECTION_TOLERANCE && fabs(joystick.x) < DIRECTION_TOLERANCE) {
el15s3p 3:520df1778717 237 joystick.direction = UP;
el15s3p 3:520df1778717 238 } else if ( joystick.x > DIRECTION_TOLERANCE && fabs(joystick.y) < DIRECTION_TOLERANCE) {
el15s3p 3:520df1778717 239 joystick.direction = LEFT;
el15s3p 3:520df1778717 240 } else if ( joystick.x < DIRECTION_TOLERANCE && fabs(joystick.y) < DIRECTION_TOLERANCE) {
el15s3p 3:520df1778717 241 joystick.direction = RIGHT;
el15s3p 3:520df1778717 242 } else {
el15s3p 3:520df1778717 243 joystick.direction = UNKNOWN;
el15s3p 3:520df1778717 244 }
el15s3p 3:520df1778717 245
el15s3p 3:520df1778717 246 // set flag for printing
el15s3p 3:520df1778717 247 printFlag = 1;
el15s3p 3:520df1778717 248 }