Michael Birney / Mbed 2 deprecated SnakeM_Birney

Completed Snake Program

Dependencies:   N5110 PinDetect PowerControl mbed

Fork of DocTest by Craig Evans

main.cpp@9:77b83754460c, 2015-05-01 (annotated)

Committer:
MBirney
Date:
Fri May 01 08:53:21 2015 +0000
Revision:
9:77b83754460c
Parent:
8:b857684a3983
Child:
10:dbcb96fa049d
Snake Wokring (buzzer function added)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MBirney 6:1de103a19681 1 #include "main.h"
MBirney 3:478b090b7e1b 2
MBirney 3:478b090b7e1b 3 // create enumerated type (0,1,2,3 etc. for direction)
MBirney 3:478b090b7e1b 4 enum DirectionName {
MBirney 3:478b090b7e1b 5 UP,
MBirney 3:478b090b7e1b 6 DOWN,
MBirney 3:478b090b7e1b 7 LEFT,
MBirney 3:478b090b7e1b 8 RIGHT,
MBirney 3:478b090b7e1b 9 CENTRE,
MBirney 3:478b090b7e1b 10 UNKNOWN
MBirney 3:478b090b7e1b 11 };
MBirney 3:478b090b7e1b 12
MBirney 6:1de103a19681 13 // create enumerated type (0,1,2 for difficulty)
MBirney 6:1de103a19681 14 enum Difficulty {
MBirney 6:1de103a19681 15 EASY,
MBirney 6:1de103a19681 16 MEDIUM,
MBirney 6:1de103a19681 17 HARD,
MBirney 6:1de103a19681 18 };
MBirney 6:1de103a19681 19
MBirney 9:77b83754460c 20 // create enumerated type (0,1 for Game Mode)
MBirney 8:b857684a3983 21 enum GameMode {
MBirney 8:b857684a3983 22 CLASSIC,
MBirney 8:b857684a3983 23 BOUNDARY,
MBirney 8:b857684a3983 24 };
MBirney 8:b857684a3983 25
MBirney 7:2942e97924f0 26 Difficulty currentDifficulty=EASY;// initialise to easy mode
MBirney 9:77b83754460c 27 GameMode selectedGameMode=CLASSIC; //initialise to Classic Mode
MBirney 6:1de103a19681 28
MBirney 3:478b090b7e1b 29 // struct for Joystick
MBirney 3:478b090b7e1b 30 typedef struct JoyStick Joystick;
MBirney 3:478b090b7e1b 31 struct JoyStick {
MBirney 3:478b090b7e1b 32 float x; // current x value
MBirney 3:478b090b7e1b 33 float x0; // 'centred' x value
MBirney 3:478b090b7e1b 34 float y; // current y value
MBirney 3:478b090b7e1b 35 float y0; // 'centred' y value
MBirney 3:478b090b7e1b 36 int button; // button state (assume pull-down used, so 1 = pressed, 0 = unpressed)
MBirney 3:478b090b7e1b 37 DirectionName direction; // current direction
MBirney 3:478b090b7e1b 38 };
MBirney 3:478b090b7e1b 39 // create struct variable
MBirney 3:478b090b7e1b 40 Joystick joystick;
MBirney 3:478b090b7e1b 41
MBirney 7:2942e97924f0 42 DirectionName previousDirection =RIGHT;//initial direction =Right
MBirney 3:478b090b7e1b 43
MBirney 3:478b090b7e1b 44 // read default positions of the joystick to calibrate later readings
MBirney 3:478b090b7e1b 45 void calibrateJoystick()
MBirney 3:478b090b7e1b 46 {
MBirney 3:478b090b7e1b 47 button.mode(PullDown);
MBirney 3:478b090b7e1b 48 // must not move during calibration
MBirney 3:478b090b7e1b 49 joystick.x0 = xPot; // initial positions in the range 0.0 to 1.0 (0.5 if centred exactly)
MBirney 3:478b090b7e1b 50 joystick.y0 = yPot;
MBirney 3:478b090b7e1b 51 }
MBirney 3:478b090b7e1b 52 void updateJoystick()
MBirney 3:478b090b7e1b 53 {
MBirney 3:478b090b7e1b 54 // read current joystick values relative to calibrated values (in range -0.5 to 0.5, 0.0 is centred)
MBirney 3:478b090b7e1b 55 joystick.x = xPot - joystick.x0;
MBirney 3:478b090b7e1b 56 joystick.y = yPot - joystick.y0;
MBirney 3:478b090b7e1b 57 // read button state
MBirney 3:478b090b7e1b 58 joystick.button = button;
MBirney 3:478b090b7e1b 59
MBirney 3:478b090b7e1b 60 // calculate direction depending on x,y values
MBirney 3:478b090b7e1b 61 // tolerance allows a little lee-way in case joystick not exactly in the stated direction
MBirney 3:478b090b7e1b 62 if ( fabs(joystick.y) < DIRECTION_TOLERANCE && fabs(joystick.x) < DIRECTION_TOLERANCE) {
MBirney 3:478b090b7e1b 63 joystick.direction = CENTRE;
MBirney 3:478b090b7e1b 64 } else if ( joystick.y > DIRECTION_TOLERANCE && fabs(joystick.x) < DIRECTION_TOLERANCE) {
MBirney 6:1de103a19681 65 joystick.direction = DOWN;
MBirney 3:478b090b7e1b 66 } else if ( joystick.y < DIRECTION_TOLERANCE && fabs(joystick.x) < DIRECTION_TOLERANCE) {
MBirney 6:1de103a19681 67 joystick.direction = UP;
MBirney 3:478b090b7e1b 68 } else if ( joystick.x > DIRECTION_TOLERANCE && fabs(joystick.y) < DIRECTION_TOLERANCE) {
MBirney 6:1de103a19681 69 joystick.direction = RIGHT; // remember switched this with right
MBirney 3:478b090b7e1b 70 } else if ( joystick.x < DIRECTION_TOLERANCE && fabs(joystick.y) < DIRECTION_TOLERANCE) {
MBirney 6:1de103a19681 71 joystick.direction = LEFT;
MBirney 3:478b090b7e1b 72 } else {
MBirney 3:478b090b7e1b 73 joystick.direction = UNKNOWN;
MBirney 3:478b090b7e1b 74 }
MBirney 3:478b090b7e1b 75 }
eencae 0:b85460bc73b9 76
MBirney 6:1de103a19681 77 //GAME FUNCTIONS
MBirney 4:551dea241d0a 78
MBirney 6:1de103a19681 79 //For start MENU
MBirney 4:551dea241d0a 80
MBirney 2:deb61a34ac31 81 void displaySplash()
MBirney 2:deb61a34ac31 82 {
MBirney 8:b857684a3983 83
MBirney 7:2942e97924f0 84 lcd.inverseMode(); // change colour mode
MBirney 2:deb61a34ac31 85 lcd.setBrightness(0.5); // put LED backlight on 50%
MBirney 2:deb61a34ac31 86
MBirney 2:deb61a34ac31 87 //Draw S
MBirney 2:deb61a34ac31 88 lcd.drawRect(28,10,2,5,1);
MBirney 2:deb61a34ac31 89 lcd.drawRect(15,10,15,2,1);
MBirney 2:deb61a34ac31 90 lcd.drawRect(15,10,2,10,1);
MBirney 2:deb61a34ac31 91 lcd.drawRect(15,20,15,2,1);
MBirney 2:deb61a34ac31 92 lcd.drawRect(28,20,2,10,1);
MBirney 2:deb61a34ac31 93 lcd.drawRect(15,28,15,2,1);
MBirney 2:deb61a34ac31 94 lcd.drawRect(15,25,2,3,1);
MBirney 2:deb61a34ac31 95
MBirney 2:deb61a34ac31 96 lcd.printString("NAKE ",34,3);
MBirney 2:deb61a34ac31 97 lcd.printString("By M.Birney",10,5);
MBirney 7:2942e97924f0 98 lcd.drawRect(10,5,65,30,0); // outline for splash
MBirney 2:deb61a34ac31 99
MBirney 2:deb61a34ac31 100 // need to refresh display after setting pixels
MBirney 2:deb61a34ac31 101
MBirney 2:deb61a34ac31 102 lcd.refresh();
eencae 0:b85460bc73b9 103 }
eencae 0:b85460bc73b9 104
eencae 0:b85460bc73b9 105
MBirney 2:deb61a34ac31 106
MBirney 2:deb61a34ac31 107 void easySelected() // display when easy is selected
MBirney 2:deb61a34ac31 108 {
MBirney 3:478b090b7e1b 109 currentDifficulty=EASY;
MBirney 2:deb61a34ac31 110 lcd.clear();
MBirney 2:deb61a34ac31 111 lcd.printString("Please Select",2,0);
MBirney 2:deb61a34ac31 112 lcd.printString("Difficulty:",2,1);
MBirney 2:deb61a34ac31 113 lcd.printString("Easy",20,3);
MBirney 2:deb61a34ac31 114 lcd.printString("Medium",20,4);
MBirney 2:deb61a34ac31 115 lcd.printString("Hard",20,5);
MBirney 9:77b83754460c 116
MBirney 2:deb61a34ac31 117 lcd.drawCircle(10,27,2,1);
MBirney 2:deb61a34ac31 118 lcd.drawCircle(10,35,2,0);
MBirney 2:deb61a34ac31 119 lcd.drawCircle(10,43,2,0);
MBirney 9:77b83754460c 120 lcd.refresh();
MBirney 2:deb61a34ac31 121
MBirney 7:2942e97924f0 122 gameSpeed= 1.0/5; // set easy game speed(for game time)
MBirney 2:deb61a34ac31 123 }
MBirney 8:b857684a3983 124 void mediumSelected() // display when medium is selected
MBirney 2:deb61a34ac31 125 {
MBirney 3:478b090b7e1b 126 currentDifficulty=MEDIUM;
MBirney 2:deb61a34ac31 127 lcd.clear();
MBirney 2:deb61a34ac31 128 lcd.printString("Please Select",2,0);
MBirney 2:deb61a34ac31 129 lcd.printString("Difficulty:",2,1);
MBirney 2:deb61a34ac31 130 lcd.printString("Easy",20,3);
MBirney 2:deb61a34ac31 131 lcd.printString("Medium",20,4);
MBirney 2:deb61a34ac31 132 lcd.printString("Hard",20,5);
MBirney 9:77b83754460c 133
MBirney 2:deb61a34ac31 134 lcd.drawCircle(10,27,2,0);
MBirney 2:deb61a34ac31 135 lcd.drawCircle(10,35,2,1);
MBirney 2:deb61a34ac31 136 lcd.drawCircle(10,43,2,0);
MBirney 8:b857684a3983 137 gameSpeed=1.0/7; // set medium game speed
MBirney 9:77b83754460c 138 lcd.refresh();
MBirney 2:deb61a34ac31 139 }
MBirney 2:deb61a34ac31 140
MBirney 2:deb61a34ac31 141 void hardSelected() // display when hard is selected
MBirney 2:deb61a34ac31 142 {
MBirney 3:478b090b7e1b 143 currentDifficulty=HARD;
MBirney 2:deb61a34ac31 144 lcd.clear();
MBirney 2:deb61a34ac31 145 lcd.printString("Please Select",2,0);
MBirney 2:deb61a34ac31 146 lcd.printString("Difficulty:",2,1);
MBirney 2:deb61a34ac31 147 lcd.printString("Easy",20,3);
MBirney 2:deb61a34ac31 148 lcd.printString("Medium",20,4);
MBirney 2:deb61a34ac31 149 lcd.printString("Hard",20,5);
MBirney 9:77b83754460c 150
MBirney 2:deb61a34ac31 151 lcd.drawCircle(10,27,2,0);
MBirney 2:deb61a34ac31 152 lcd.drawCircle(10,35,2,0);
MBirney 2:deb61a34ac31 153 lcd.drawCircle(10,43,2,1);
MBirney 9:77b83754460c 154 lcd.refresh();
MBirney 7:2942e97924f0 155 gameSpeed=1.0/12; // set hard game speed
MBirney 4:551dea241d0a 156 }
MBirney 4:551dea241d0a 157
MBirney 9:77b83754460c 158 void classicModeSelected() //display when classic mode selected
MBirney 8:b857684a3983 159 {
MBirney 8:b857684a3983 160
MBirney 8:b857684a3983 161
MBirney 8:b857684a3983 162 selectedGameMode=CLASSIC;
MBirney 8:b857684a3983 163 lcd.clear();
MBirney 8:b857684a3983 164 lcd.printString("Please Select",2,0);
MBirney 8:b857684a3983 165 lcd.printString("Game Mode:",2,1);
MBirney 8:b857684a3983 166 lcd.printString("Classic",20,3);
MBirney 8:b857684a3983 167 lcd.printString("Boundary",20,4);
MBirney 9:77b83754460c 168
MBirney 8:b857684a3983 169 lcd.drawCircle(10,27,2,1);
MBirney 8:b857684a3983 170 lcd.drawCircle(10,35,2,0);
MBirney 9:77b83754460c 171 lcd.refresh();
MBirney 8:b857684a3983 172
MBirney 8:b857684a3983 173 }
MBirney 8:b857684a3983 174
MBirney 9:77b83754460c 175 void boundaryModeSelected() // display when boundary mode selected
MBirney 8:b857684a3983 176 {
MBirney 9:77b83754460c 177 selectedGameMode=BOUNDARY;//update selecected game mode
MBirney 8:b857684a3983 178 lcd.clear();
MBirney 8:b857684a3983 179 lcd.printString("Please Select",2,0);
MBirney 8:b857684a3983 180 lcd.printString("Game Mode:",2,1);
MBirney 8:b857684a3983 181 lcd.printString("Classic",20,3);
MBirney 8:b857684a3983 182 lcd.printString("Boundary",20,4);
MBirney 9:77b83754460c 183
MBirney 8:b857684a3983 184 lcd.drawCircle(10,27,2,0);
MBirney 8:b857684a3983 185 lcd.drawCircle(10,35,2,1);
MBirney 9:77b83754460c 186 lcd.refresh();
MBirney 8:b857684a3983 187
MBirney 8:b857684a3983 188 }
MBirney 8:b857684a3983 189
MBirney 8:b857684a3983 190
MBirney 9:77b83754460c 191 void checkSelectedGameMode()// updates selected game mode menu depending on joystick direction
MBirney 8:b857684a3983 192 {
MBirney 8:b857684a3983 193
MBirney 8:b857684a3983 194 switch(selectedGameMode) {
MBirney 9:77b83754460c 195 case CLASSIC:
MBirney 8:b857684a3983 196
MBirney 8:b857684a3983 197 switch (joystick.direction) {
MBirney 8:b857684a3983 198
MBirney 8:b857684a3983 199 case UP:
MBirney 8:b857684a3983 200 boundaryModeSelected();
MBirney 8:b857684a3983 201 break;
MBirney 8:b857684a3983 202
MBirney 8:b857684a3983 203
MBirney 8:b857684a3983 204 case DOWN:
MBirney 8:b857684a3983 205 boundaryModeSelected();
MBirney 8:b857684a3983 206 break;
MBirney 8:b857684a3983 207 }
MBirney 8:b857684a3983 208 break;
MBirney 8:b857684a3983 209
MBirney 8:b857684a3983 210
MBirney 8:b857684a3983 211 case BOUNDARY:
MBirney 8:b857684a3983 212
MBirney 8:b857684a3983 213 switch (joystick.direction) {
MBirney 8:b857684a3983 214
MBirney 8:b857684a3983 215 case UP:
MBirney 8:b857684a3983 216 classicModeSelected();
MBirney 8:b857684a3983 217 break;
MBirney 8:b857684a3983 218
MBirney 8:b857684a3983 219
MBirney 8:b857684a3983 220 case DOWN:
MBirney 8:b857684a3983 221 classicModeSelected();
MBirney 8:b857684a3983 222 break;
MBirney 8:b857684a3983 223 }
MBirney 8:b857684a3983 224
MBirney 8:b857684a3983 225 break;
MBirney 8:b857684a3983 226 }
MBirney 8:b857684a3983 227 wait(0.2);
MBirney 8:b857684a3983 228
MBirney 8:b857684a3983 229 }
MBirney 7:2942e97924f0 230
MBirney 6:1de103a19681 231 void checkSelectedDifficulty()
MBirney 6:1de103a19681 232 {
MBirney 4:551dea241d0a 233
MBirney 4:551dea241d0a 234 switch(currentDifficulty) {
MBirney 4:551dea241d0a 235 case EASY:
MBirney 4:551dea241d0a 236
MBirney 4:551dea241d0a 237 switch (joystick.direction) {
MBirney 4:551dea241d0a 238
MBirney 4:551dea241d0a 239 case UP:
MBirney 4:551dea241d0a 240 hardSelected();
MBirney 4:551dea241d0a 241 break;
MBirney 4:551dea241d0a 242
MBirney 4:551dea241d0a 243
MBirney 4:551dea241d0a 244 case DOWN:
MBirney 4:551dea241d0a 245 mediumSelected();
MBirney 4:551dea241d0a 246 break;
MBirney 4:551dea241d0a 247 }
MBirney 4:551dea241d0a 248 break;
MBirney 2:deb61a34ac31 249
MBirney 2:deb61a34ac31 250
MBirney 4:551dea241d0a 251 case MEDIUM:
MBirney 4:551dea241d0a 252
MBirney 4:551dea241d0a 253 switch (joystick.direction) {
MBirney 4:551dea241d0a 254
MBirney 4:551dea241d0a 255 case UP:
MBirney 4:551dea241d0a 256 easySelected();
MBirney 4:551dea241d0a 257 break;
MBirney 4:551dea241d0a 258
MBirney 4:551dea241d0a 259
MBirney 4:551dea241d0a 260 case DOWN:
MBirney 4:551dea241d0a 261 hardSelected();
MBirney 4:551dea241d0a 262 break;
MBirney 4:551dea241d0a 263 }
MBirney 4:551dea241d0a 264
MBirney 4:551dea241d0a 265
MBirney 4:551dea241d0a 266
MBirney 4:551dea241d0a 267 break;
MBirney 4:551dea241d0a 268 case HARD:
MBirney 4:551dea241d0a 269 switch (joystick.direction) {
MBirney 4:551dea241d0a 270
MBirney 4:551dea241d0a 271 case UP:
MBirney 4:551dea241d0a 272 mediumSelected();
MBirney 4:551dea241d0a 273 break;
MBirney 4:551dea241d0a 274
MBirney 4:551dea241d0a 275
MBirney 4:551dea241d0a 276 case DOWN:
MBirney 4:551dea241d0a 277 easySelected();
MBirney 4:551dea241d0a 278 break;
MBirney 4:551dea241d0a 279 }
MBirney 4:551dea241d0a 280 break;
MBirney 4:551dea241d0a 281 }
MBirney 4:551dea241d0a 282 wait(0.2);
MBirney 4:551dea241d0a 283 }
MBirney 4:551dea241d0a 284
MBirney 6:1de103a19681 285
MBirney 6:1de103a19681 286
MBirney 6:1de103a19681 287
MBirney 6:1de103a19681 288 //for gamePLAY
MBirney 6:1de103a19681 289
MBirney 6:1de103a19681 290
MBirney 6:1de103a19681 291
MBirney 6:1de103a19681 292 void startingSnake()
MBirney 6:1de103a19681 293 {
MBirney 9:77b83754460c 294 snakeX.resize(5); // ensure that when game is reset snake vectors are resized back to 5
MBirney 9:77b83754460c 295 snakeY.resize(5);//
MBirney 9:77b83754460c 296 snakeX[0]=20; // initial snake position
MBirney 7:2942e97924f0 297 snakeX[1]=22;
MBirney 7:2942e97924f0 298 snakeX[2]=24;
MBirney 7:2942e97924f0 299 snakeX[3]=26;
MBirney 7:2942e97924f0 300 snakeX[4]=28;
MBirney 7:2942e97924f0 301 snakeY[0]=27;
MBirney 7:2942e97924f0 302 snakeY[1]=27;
MBirney 7:2942e97924f0 303 snakeY[2]=27;
MBirney 7:2942e97924f0 304 snakeY[3]=27;
MBirney 7:2942e97924f0 305 snakeY[4]=27;
MBirney 8:b857684a3983 306
MBirney 6:1de103a19681 307
MBirney 7:2942e97924f0 308 for (int i=0; i<5; i++) {
MBirney 9:77b83754460c 309
MBirney 9:77b83754460c 310 lcd.drawRect(snakeX[i],snakeY[i],1,1,1); // snake is 2X2 pixels so draw rect with one width and 1 height
MBirney 4:551dea241d0a 311 }
MBirney 7:2942e97924f0 312
MBirney 6:1de103a19681 313 }
MBirney 6:1de103a19681 314
MBirney 6:1de103a19681 315
MBirney 6:1de103a19681 316 void randomiseFood()
MBirney 6:1de103a19681 317 {
MBirney 7:2942e97924f0 318 // http://stackoverflow.com/questions/3383286/create-a-random-even-number-between-range
MBirney 7:2942e97924f0 319
MBirney 6:1de103a19681 320
MBirney 9:77b83754460c 321 srand(time(NULL)); // using time as a seed for rand
MBirney 6:1de103a19681 322
MBirney 9:77b83754460c 323 int randomX = 2 * (1 + rand() % (40 - 1 + 1)) ; //generate random even number between 2 and 80 // these are the only coordinates the snake operates in
MBirney 6:1de103a19681 324
MBirney 7:2942e97924f0 325 int randomY = (2 * (4 + rand() % (22 - 4 + 1))) +1; // generate random even number between 8 and 44 then plus 1 for odd number in range of 9-45
MBirney 6:1de103a19681 326
MBirney 6:1de103a19681 327
MBirney 7:2942e97924f0 328 while(lcd.getPixel(randomX,randomY)==1) { // if that pixel is already filled keep generating till a empty space is found
MBirney 6:1de103a19681 329
MBirney 7:2942e97924f0 330 int randomX = 2 * (1 + rand() % (40 - 1 + 1)) ;
MBirney 9:77b83754460c 331 int randomY = (2 * (4 + rand() % (22 - 4 + 1))) +1;
MBirney 6:1de103a19681 332
MBirney 6:1de103a19681 333
MBirney 6:1de103a19681 334 }
MBirney 9:77b83754460c 335
MBirney 9:77b83754460c 336 lcd.drawRect(randomX,randomY,1,1,1); // set the food to screen
MBirney 7:2942e97924f0 337
MBirney 7:2942e97924f0 338 foodX[0]=randomX; // update food position
MBirney 7:2942e97924f0 339 foodY[0]=randomY;// update food position
MBirney 6:1de103a19681 340 lcd.refresh();
MBirney 7:2942e97924f0 341 //serial.printf("%d",randomX);
MBirney 6:1de103a19681 342 }
MBirney 6:1de103a19681 343
MBirney 9:77b83754460c 344 void hardBoundary() // use these boundary conditions if gamemode is BOUNDARY
MBirney 6:1de103a19681 345 {
MBirney 6:1de103a19681 346
MBirney 6:1de103a19681 347
MBirney 7:2942e97924f0 348 for(int x = 1; x< 83; x++) { // draw 1 to 82 at y=8
MBirney 6:1de103a19681 349 lcd.setPixel(x,8);
MBirney 6:1de103a19681 350 }
MBirney 7:2942e97924f0 351 for(int x = 1; x< 83; x++) { // draw 1 to 82 at y=47
MBirney 6:1de103a19681 352 lcd.setPixel(x,47);
MBirney 6:1de103a19681 353 }
MBirney 7:2942e97924f0 354 for(int y = 8; y< 48; y++) {// draw 8 tp 47 at x=1
MBirney 7:2942e97924f0 355 lcd.setPixel(1,y);
MBirney 6:1de103a19681 356 }
MBirney 7:2942e97924f0 357 for(int y = 8; y< 48; y++) {// draw 8 to 47 at x =82
MBirney 7:2942e97924f0 358 lcd.setPixel(82,y);
MBirney 6:1de103a19681 359 }
MBirney 6:1de103a19681 360
MBirney 6:1de103a19681 361 lcd.refresh();
MBirney 6:1de103a19681 362
MBirney 6:1de103a19681 363 }
MBirney 9:77b83754460c 364 void classicBoundary() // use these boundaries if gamemode is classic
MBirney 8:b857684a3983 365 {
MBirney 6:1de103a19681 366
MBirney 6:1de103a19681 367
MBirney 8:b857684a3983 368 for(int x = 1; x< 83; x++) { // draw 1 to 82 at y=8
MBirney 8:b857684a3983 369 lcd.setPixel(x,8);
MBirney 8:b857684a3983 370 }
MBirney 8:b857684a3983 371 for(int x = 1; x< 83; x+=2) { // draw 1 to 82 at y=47
MBirney 8:b857684a3983 372 lcd.setPixel(x,47);
MBirney 8:b857684a3983 373 }
MBirney 8:b857684a3983 374 for(int y = 8; y< 48; y+=2) {// draw 8 tp 47 at x=1
MBirney 8:b857684a3983 375 lcd.setPixel(1,y);
MBirney 8:b857684a3983 376 }
MBirney 8:b857684a3983 377 for(int y = 8; y< 48; y+=2) {// draw 8 to 47 at x =82
MBirney 8:b857684a3983 378 lcd.setPixel(82,y);
MBirney 8:b857684a3983 379 }
MBirney 6:1de103a19681 380
MBirney 8:b857684a3983 381 lcd.refresh();
MBirney 8:b857684a3983 382
MBirney 8:b857684a3983 383 }
MBirney 6:1de103a19681 384
MBirney 6:1de103a19681 385
MBirney 6:1de103a19681 386 void updateSnakeArray()
MBirney 6:1de103a19681 387 {
MBirney 9:77b83754460c 388 // code to prevent snake moving in opposite direction to its current path of travel
MBirney 9:77b83754460c 389 if (joystick.direction==LEFT && previousDirection==RIGHT) { // if snake is travelling right but joystick is left
MBirney 9:77b83754460c 390 joystick.direction=RIGHT; // cary on right
MBirney 6:1de103a19681 391 }
MBirney 6:1de103a19681 392
MBirney 9:77b83754460c 393 if (joystick.direction==RIGHT && previousDirection==LEFT) { // if snake is travelling left but joystick is right
MBirney 9:77b83754460c 394 joystick.direction=LEFT; //carry on left
MBirney 6:1de103a19681 395 }
MBirney 6:1de103a19681 396
MBirney 9:77b83754460c 397 if (joystick.direction==UP && previousDirection==DOWN) {// if snake is travelling down but joystick is up
MBirney 9:77b83754460c 398 joystick.direction=DOWN; // carry on down
MBirney 6:1de103a19681 399 }
MBirney 6:1de103a19681 400
MBirney 9:77b83754460c 401 if (joystick.direction==DOWN && previousDirection==UP) { // if snake is travelling up but joystick is down
MBirney 9:77b83754460c 402 joystick.direction=UP; // carry on up
MBirney 6:1de103a19681 403 }
MBirney 6:1de103a19681 404
MBirney 9:77b83754460c 405 if (joystick.direction==UNKNOWN || joystick.direction==CENTRE) { // if joystick is unknown or centred
MBirney 9:77b83754460c 406 joystick.direction= previousDirection; // carry on in previous direction
MBirney 6:1de103a19681 407 }
MBirney 6:1de103a19681 408
MBirney 6:1de103a19681 409
MBirney 9:77b83754460c 410 lcd.drawRect(snakeX[0],snakeY[0],1,1,2); // delete tail of snake by drawing a clear 2x2 block at first element in vectors
MBirney 6:1de103a19681 411
MBirney 6:1de103a19681 412 for (int i =0; i<snakeX.size(); i++) { // shift elements
MBirney 6:1de103a19681 413 snakeX[i]=snakeX[i + 1]; // apart from head
MBirney 6:1de103a19681 414 snakeY[i]=snakeY[i+ 1];
MBirney 6:1de103a19681 415 }
MBirney 6:1de103a19681 416
MBirney 9:77b83754460c 417 //code to set new head coordinates
MBirney 6:1de103a19681 418 switch(joystick.direction) {
MBirney 6:1de103a19681 419
MBirney 9:77b83754460c 420 case UP: // if travelling up
MBirney 9:77b83754460c 421 snakeX[snakeX.size()-1]=snakeX[snakeX.size()-2]; // snake new head x coordinate = previous head c coordinate
MBirney 9:77b83754460c 422 snakeY[snakeY.size()-1]=snakeY[snakeY.size()-2]-2; // snake new head y cordinate = previous head y coordinate -2 as it moves up
MBirney 8:b857684a3983 423
MBirney 9:77b83754460c 424 if (selectedGameMode==CLASSIC) { // when in classic mode no boundaries so need to check if new head is beyond edge limit
MBirney 9:77b83754460c 425 if(snakeY[snakeY.size()-1] <9) snakeY[snakeY.size()-1]=45; // when travelling up check head against upper edge
MBirney 9:77b83754460c 426 }
MBirney 6:1de103a19681 427 break;
MBirney 6:1de103a19681 428
MBirney 9:77b83754460c 429 case DOWN:// if travelling down
MBirney 9:77b83754460c 430 snakeX[snakeX.size()-1]=snakeX[snakeX.size()-2]; // snake new head x coordinate = previous head c coordinate
MBirney 9:77b83754460c 431 snakeY[snakeY.size()-1]=snakeY[snakeY.size()-2]+2;// snake new head y cordinate = previous head y coordinate +2 as it moves down
MBirney 9:77b83754460c 432
MBirney 9:77b83754460c 433 if (selectedGameMode==CLASSIC) { // when in classic mode no boundaries so need to check if new head is beyond edge limit
MBirney 9:77b83754460c 434 if(snakeY[snakeY.size()-1] >45) snakeY[snakeY.size()-1]=9; // check new head against bottom edge
MBirney 8:b857684a3983 435 }
MBirney 6:1de103a19681 436 break;
MBirney 6:1de103a19681 437
MBirney 6:1de103a19681 438 case LEFT:
MBirney 9:77b83754460c 439 snakeX[snakeX.size()-1]=snakeX[snakeX.size()-2]-2; // snake new head x coordinate = previous head x coordinate - 2
MBirney 9:77b83754460c 440 snakeY[snakeY.size()-1]=snakeY[snakeY.size()-2];// snake new head y coordinate = previous head y coordinate
MBirney 9:77b83754460c 441
MBirney 9:77b83754460c 442 if (selectedGameMode==CLASSIC) { // when in classic mode no boundaries so need to check if new head is beyond edge limit
MBirney 9:77b83754460c 443 if(snakeX[snakeX.size()-1] <2) snakeX[snakeX.size()-1]=80; // check head against left edge
MBirney 9:77b83754460c 444 }
MBirney 6:1de103a19681 445 break;
MBirney 6:1de103a19681 446
MBirney 6:1de103a19681 447 case RIGHT:
MBirney 9:77b83754460c 448 snakeX[snakeX.size()-1]= snakeX[snakeX.size()-2]+2; // snake new head x coordinate = previous head x coordinate + 2
MBirney 9:77b83754460c 449 snakeY[snakeY.size()-1]=snakeY[snakeY.size()-2];// snake new head y coordinate = previous head y coordinate
MBirney 9:77b83754460c 450
MBirney 9:77b83754460c 451 if (selectedGameMode==CLASSIC) { // when in classic mode no boundaries so need to check if new head is beyond edge limit
MBirney 9:77b83754460c 452 if(snakeX[snakeX.size()-1] >80) snakeX[snakeX.size()-1]=2;
MBirney 9:77b83754460c 453 }
MBirney 8:b857684a3983 454
MBirney 6:1de103a19681 455 break;
MBirney 6:1de103a19681 456
MBirney 9:77b83754460c 457 /* case CENTRE:
MBirney 9:77b83754460c 458 snakeX[snakeX.size()-1]=snakeX[snakeX.size()-2]+2;
MBirney 9:77b83754460c 459 snakeY[snakeY.size()-1]=snakeY[snakeY.size()-2];
MBirney 9:77b83754460c 460 break;
MBirney 9:77b83754460c 461 case UNKNOWN:
MBirney 9:77b83754460c 462 snakeX[snakeX.size()-1]=snakeX[snakeX.size()-2]+2;
MBirney 9:77b83754460c 463 snakeY[snakeY.size()-1]=snakeY[snakeY.size()-2];
MBirney 9:77b83754460c 464 break;*/
MBirney 6:1de103a19681 465
MBirney 6:1de103a19681 466 }
MBirney 6:1de103a19681 467 }
MBirney 9:77b83754460c 468 void gameOverTune() //
MBirney 7:2942e97924f0 469 {
MBirney 8:b857684a3983 470
MBirney 9:77b83754460c 471 // float frequency[]={440,659};
MBirney 9:77b83754460c 472 //float beat[]={1,1,};
MBirney 9:77b83754460c 473
MBirney 9:77b83754460c 474 Buzzer.period(1.0/(220)); // set PWM period 1/f A
MBirney 9:77b83754460c 475 Buzzer=0.5; // set duty cycle
MBirney 9:77b83754460c 476 wait(0.5); // wait time
MBirney 9:77b83754460c 477 Buzzer.period(1.0/(164)); // E
MBirney 9:77b83754460c 478 wait(0.5);//
MBirney 9:77b83754460c 479 Buzzer=0;// set duty cycle 0
MBirney 8:b857684a3983 480
MBirney 9:77b83754460c 481 // set PWM period
MBirney 8:b857684a3983 482
MBirney 9:77b83754460c 483 }
MBirney 8:b857684a3983 484
MBirney 9:77b83754460c 485 void eatFoodTune(){
MBirney 9:77b83754460c 486 Buzzer.period(1.0/(440)); // set PWM period 1/f A
MBirney 9:77b83754460c 487 Buzzer=0.5; // set duty cycle
MBirney 9:77b83754460c 488 wait(0.1); // wait time
MBirney 9:77b83754460c 489 Buzzer=0;// set duty cycle 0
MBirney 9:77b83754460c 490 }
MBirney 9:77b83754460c 491
MBirney 6:1de103a19681 492 void gameOver()
MBirney 6:1de103a19681 493 {
MBirney 7:2942e97924f0 494 leds=1;
MBirney 9:77b83754460c 495 startGame.detach(); // stop snake game from updating
MBirney 9:77b83754460c 496 lcd.drawRect(snakeX.back(),snakeY.back(),1,1,2); // highlight the point of game over
MBirney 6:1de103a19681 497 wait(0.2);
MBirney 6:1de103a19681 498 lcd.refresh();
MBirney 7:2942e97924f0 499 lcd.drawRect(snakeX.back(),snakeY.back(),1,1,1);
MBirney 6:1de103a19681 500 wait(0.3);
MBirney 6:1de103a19681 501 lcd.refresh();
MBirney 7:2942e97924f0 502 lcd.drawRect(snakeX.back(),snakeY.back(),1,1,2);
MBirney 6:1de103a19681 503 wait(0.2);
MBirney 6:1de103a19681 504 lcd.refresh();
MBirney 7:2942e97924f0 505 lcd.drawRect(snakeX.back(),snakeY.back(),1,1,1);
MBirney 6:1de103a19681 506 wait(0.2);
MBirney 6:1de103a19681 507 lcd.refresh();
MBirney 6:1de103a19681 508 lcd.clear();
MBirney 6:1de103a19681 509 lcd.inverseMode();
MBirney 6:1de103a19681 510
MBirney 7:2942e97924f0 511
MBirney 9:77b83754460c 512 lcd.printString("Your Score" ,12,0);// print score
MBirney 7:2942e97924f0 513 lcd.printString("=" ,34,1);
MBirney 7:2942e97924f0 514
MBirney 7:2942e97924f0 515 int updatedScore=score;
MBirney 7:2942e97924f0 516 int length = sprintf(buffer,"%2d",updatedScore);
MBirney 7:2942e97924f0 517
MBirney 7:2942e97924f0 518 if (length <= 14) // if string will fit on display
MBirney 7:2942e97924f0 519 lcd.printString(buffer,40,1);
MBirney 6:1de103a19681 520
MBirney 7:2942e97924f0 521 lcd.printString("Press Reset" ,2,3);
MBirney 7:2942e97924f0 522 lcd.printString("Button To" ,10,4);
MBirney 7:2942e97924f0 523 lcd.printString("Play Again" ,20,5);
MBirney 8:b857684a3983 524
MBirney 7:2942e97924f0 525 //
MBirney 7:2942e97924f0 526 lcd.refresh();
MBirney 9:77b83754460c 527 gameOverTune();
MBirney 8:b857684a3983 528
MBirney 7:2942e97924f0 529 //gamePlaying=0;
MBirney 6:1de103a19681 530 }
MBirney 6:1de103a19681 531
MBirney 9:77b83754460c 532 void checkForCollision() // when in BOUNDARY MODE check snake head every move against walls
MBirney 6:1de103a19681 533 {
MBirney 6:1de103a19681 534
MBirney 7:2942e97924f0 535 if (snakeX.back()==0|| snakeX.back()==82 || snakeY.back()==7 ||snakeY.back()>=47) {
MBirney 7:2942e97924f0 536 myleds=15;
MBirney 7:2942e97924f0 537
MBirney 9:77b83754460c 538 gameOver(); // if collision then end game
MBirney 6:1de103a19681 539 }
MBirney 6:1de103a19681 540 }
MBirney 6:1de103a19681 541
MBirney 9:77b83754460c 542 void checkForFood() // check if snake has eaten food
MBirney 6:1de103a19681 543 {
MBirney 6:1de103a19681 544
MBirney 7:2942e97924f0 545 if (snakeX.back()==foodX[0] && snakeY.back()==foodY[0]) { // if x and y of head match food
MBirney 6:1de103a19681 546
MBirney 6:1de103a19681 547
MBirney 6:1de103a19681 548 switch(joystick.direction) {
MBirney 6:1de103a19681 549
MBirney 6:1de103a19681 550 case RIGHT:
MBirney 9:77b83754460c 551 snakeX.insert (snakeX.begin() +0,foodX[0]-2 ); // insert new element to tail of snake vector
MBirney 7:2942e97924f0 552 snakeY.insert (snakeY.begin() ,foodY[0]);
MBirney 7:2942e97924f0 553 //snakeX.push_back(foodX[0]+2);
MBirney 7:2942e97924f0 554 // snakeY.push_back(foodY[0]);
MBirney 6:1de103a19681 555 break;
MBirney 6:1de103a19681 556 case LEFT:
MBirney 6:1de103a19681 557
MBirney 7:2942e97924f0 558 snakeX.insert (snakeX.begin() +0,foodX[0]+2 );
MBirney 7:2942e97924f0 559 snakeY.insert (snakeY.begin() ,foodY[0]);
MBirney 7:2942e97924f0 560
MBirney 7:2942e97924f0 561 // snakeX.push_back(foodX[0]-2);
MBirney 7:2942e97924f0 562 // snakeY.push_back(foodY[0]);
MBirney 6:1de103a19681 563 break;
MBirney 6:1de103a19681 564
MBirney 6:1de103a19681 565
MBirney 6:1de103a19681 566 case UP:
MBirney 7:2942e97924f0 567
MBirney 7:2942e97924f0 568 snakeX.insert (snakeX.begin() +0,foodX[0] );
MBirney 7:2942e97924f0 569 snakeY.insert (snakeY.begin() ,foodY[0]+2);
MBirney 7:2942e97924f0 570 // snakeX.push_back(foodX[0]);
MBirney 7:2942e97924f0 571 // snakeY.push_back(foodY[0]-2);
MBirney 6:1de103a19681 572 break;
MBirney 6:1de103a19681 573
MBirney 6:1de103a19681 574 case DOWN:
MBirney 7:2942e97924f0 575 snakeX.insert (snakeX.begin() +0,foodX[0] );
MBirney 7:2942e97924f0 576 snakeY.insert (snakeY.begin() ,foodY[0]-2);
MBirney 7:2942e97924f0 577 // snakeX.push_back(foodX[0]);
MBirney 7:2942e97924f0 578 // snakeY.push_back(foodY[0]+2);
MBirney 6:1de103a19681 579 break;
MBirney 6:1de103a19681 580 }
MBirney 9:77b83754460c 581 eatFoodTune();
MBirney 9:77b83754460c 582 lcd.drawRect(snakeX[0],snakeY[0],1,1,1); // draw the new tail
MBirney 9:77b83754460c 583
MBirney 9:77b83754460c 584 int updatedScore; // to store updated score
MBirney 6:1de103a19681 585
MBirney 6:1de103a19681 586
MBirney 9:77b83754460c 587 updatedScore= score+5; // 5 points for every food eaten
MBirney 6:1de103a19681 588 score=updatedScore;
MBirney 9:77b83754460c 589 int length = sprintf(buffer,"%2d",updatedScore);// print updated score to screen
MBirney 6:1de103a19681 590
MBirney 6:1de103a19681 591 if (length <= 14) // if string will fit on display
MBirney 6:1de103a19681 592 lcd.printString(buffer,0,0);
MBirney 6:1de103a19681 593 // lcd.refresh();
MBirney 6:1de103a19681 594
MBirney 9:77b83754460c 595 randomiseFood(); // randomise new food
MBirney 6:1de103a19681 596
MBirney 5:1bfc306466db 597 }
MBirney 2:deb61a34ac31 598
MBirney 6:1de103a19681 599
MBirney 6:1de103a19681 600 }
MBirney 6:1de103a19681 601
MBirney 6:1de103a19681 602 void startButtonPressed()
MBirney 6:1de103a19681 603 {
MBirney 9:77b83754460c 604 if (gameState==0) { // when at first menu if pressed
MBirney 9:77b83754460c 605 gameState=1; // move to second menu
MBirney 8:b857684a3983 606 }
MBirney 8:b857684a3983 607
MBirney 9:77b83754460c 608 else if (gameState==1) { // when at second menu
MBirney 9:77b83754460c 609 gameState=2; // move to gameplay
MBirney 8:b857684a3983 610 }
MBirney 8:b857684a3983 611
MBirney 6:1de103a19681 612 }
MBirney 6:1de103a19681 613
MBirney 6:1de103a19681 614
MBirney 6:1de103a19681 615
MBirney 7:2942e97924f0 616 void updateBrightness()
MBirney 7:2942e97924f0 617 {
MBirney 7:2942e97924f0 618 float ain ;
MBirney 7:2942e97924f0 619 ain=pot.read();
MBirney 7:2942e97924f0 620 lcd.setBrightness(1-ain);
MBirney 6:1de103a19681 621
MBirney 7:2942e97924f0 622 }
MBirney 6:1de103a19681 623 void updateGameISR()
MBirney 6:1de103a19681 624 {
MBirney 6:1de103a19681 625 updateGameFlag=1;
MBirney 6:1de103a19681 626 }
MBirney 6:1de103a19681 627
MBirney 6:1de103a19681 628 void printVectorContent()
MBirney 6:1de103a19681 629 {
MBirney 6:1de103a19681 630
MBirney 7:2942e97924f0 631 //for( int i=0; i<snakeX.size(); i++)
MBirney 7:2942e97924f0 632 // serial.printf( "%d \n \r" ,snakeX[i]);
MBirney 6:1de103a19681 633
MBirney 6:1de103a19681 634 }
MBirney 6:1de103a19681 635
MBirney 6:1de103a19681 636
MBirney 6:1de103a19681 637
MBirney 6:1de103a19681 638 void pauseButtonPressed()
MBirney 6:1de103a19681 639 {
MBirney 6:1de103a19681 640
MBirney 9:77b83754460c 641 if (gamePaused==0) { // if game isnt already paused
MBirney 6:1de103a19681 642
MBirney 9:77b83754460c 643 startGame.detach(); // stop game updating
MBirney 6:1de103a19681 644
MBirney 9:77b83754460c 645 gamePaused=1; // update paused status
MBirney 9:77b83754460c 646 leds=2; // show amber led
MBirney 7:2942e97924f0 647
MBirney 6:1de103a19681 648 }
MBirney 6:1de103a19681 649
MBirney 9:77b83754460c 650 else { // if game is paused start game
MBirney 6:1de103a19681 651 startGame.attach(&updateGameISR,gameSpeed);
MBirney 6:1de103a19681 652
MBirney 6:1de103a19681 653 gamePaused=0;
MBirney 6:1de103a19681 654 }
MBirney 6:1de103a19681 655
MBirney 6:1de103a19681 656
MBirney 6:1de103a19681 657
MBirney 6:1de103a19681 658 }
MBirney 6:1de103a19681 659
MBirney 9:77b83754460c 660 void checkForCollisionWithSelf(int i) // checks snake head with all other parts of snake
MBirney 6:1de103a19681 661 {
MBirney 9:77b83754460c 662 if(snakeX.back()==snakeX[i] && snakeY.back()==snakeY[i]) { // if both x and y coordinates of any part of snake match head
MBirney 9:77b83754460c 663 gameOver(); // end game
MBirney 6:1de103a19681 664 }
MBirney 6:1de103a19681 665
MBirney 6:1de103a19681 666
MBirney 6:1de103a19681 667 }
MBirney 6:1de103a19681 668 void startUpMenu()
MBirney 2:deb61a34ac31 669 {
MBirney 8:b857684a3983 670 lcd.inverseMode();
MBirney 2:deb61a34ac31 671 easySelected();
MBirney 9:77b83754460c 672 joystick.direction=UNKNOWN; // unknown so does not start scrolling
MBirney 3:478b090b7e1b 673 calibrateJoystick(); // get centred values of joystick
MBirney 8:b857684a3983 674
MBirney 8:b857684a3983 675 }
MBirney 8:b857684a3983 676
MBirney 8:b857684a3983 677 void ModeMenu()
MBirney 8:b857684a3983 678 {
MBirney 8:b857684a3983 679 classicModeSelected();
MBirney 9:77b83754460c 680 joystick.direction=UNKNOWN;// unknown so does not start scrolling
MBirney 8:b857684a3983 681 calibrateJoystick(); // get centred values of joystick
MBirney 6:1de103a19681 682 }
MBirney 6:1de103a19681 683
MBirney 6:1de103a19681 684 void resetButtonPressed()
MBirney 6:1de103a19681 685 {
MBirney 9:77b83754460c 686
MBirney 9:77b83754460c 687 gameState=0; // when reset button pressed bring back to first menu screen
MBirney 6:1de103a19681 688 }
MBirney 6:1de103a19681 689
MBirney 6:1de103a19681 690
MBirney 6:1de103a19681 691 int main()
MBirney 6:1de103a19681 692 {
MBirney 9:77b83754460c 693 startButton.setSampleFrequency();
MBirney 6:1de103a19681 694 lcd.init();
MBirney 6:1de103a19681 695 resetButton.mode(PullDown);
MBirney 6:1de103a19681 696 startButton.mode(PullDown);
MBirney 6:1de103a19681 697 button.mode(PullDown);
MBirney 9:77b83754460c 698 // startButton.rise(&startButtonPressed);
MBirney 9:77b83754460c 699 startButton.attach_asserted( &startButtonPressed );
MBirney 4:551dea241d0a 700 resetButton.rise(&resetButtonPressed);
MBirney 6:1de103a19681 701 button.rise(&pauseButtonPressed);
MBirney 8:b857684a3983 702 displaySplash();
MBirney 9:77b83754460c 703 leds=1;
MBirney 7:2942e97924f0 704 wait(4);
MBirney 9:77b83754460c 705
MBirney 4:551dea241d0a 706 while(1) {
MBirney 9:77b83754460c 707 leds=1;// red light
MBirney 7:2942e97924f0 708 startUpMenu();
MBirney 9:77b83754460c 709 while (gameState==0) { // wait until user has selected difficulty
MBirney 7:2942e97924f0 710 updateJoystick();
MBirney 6:1de103a19681 711 checkSelectedDifficulty();
MBirney 7:2942e97924f0 712 updateBrightness();
MBirney 7:2942e97924f0 713 //serial.printf("check difficulty loop");
MBirney 9:77b83754460c 714
MBirney 9:77b83754460c 715 if (gameState==1) { // initialise mode menu
MBirney 8:b857684a3983 716 ModeMenu();
MBirney 9:77b83754460c 717 }
MBirney 6:1de103a19681 718 }
MBirney 6:1de103a19681 719
MBirney 8:b857684a3983 720
MBirney 9:77b83754460c 721 while(gameState==1) { // wait unit user has pressed start button and selected a game mode
MBirney 9:77b83754460c 722
MBirney 8:b857684a3983 723 updateJoystick();
MBirney 8:b857684a3983 724 checkSelectedGameMode();
MBirney 8:b857684a3983 725 updateBrightness();
MBirney 9:77b83754460c 726
MBirney 8:b857684a3983 727 }
MBirney 8:b857684a3983 728
MBirney 9:77b83754460c 729 if (gameState==2) { // initialise game
MBirney 7:2942e97924f0 730
MBirney 6:1de103a19681 731 lcd.clear();
MBirney 9:77b83754460c 732 lcd.normalMode(); // normal colours for gameplay
MBirney 9:77b83754460c 733 if (selectedGameMode==BOUNDARY) hardBoundary(); // depending on game mode selcted set walls
MBirney 8:b857684a3983 734 if (selectedGameMode==CLASSIC) classicBoundary();
MBirney 9:77b83754460c 735 previousDirection=RIGHT; // snake has to be moving right when reset (reset bug fix)
MBirney 8:b857684a3983 736 joystick.direction=RIGHT; // make sure when game reset that joystick is reset to right
MBirney 9:77b83754460c 737 startingSnake(); // print starting snake
MBirney 9:77b83754460c 738 randomiseFood(); // show random food
MBirney 9:77b83754460c 739 int score=5;// initial score is 5
MBirney 8:b857684a3983 740 int length = sprintf(buffer,"%2d",score);
MBirney 6:1de103a19681 741 if (length <= 14) // if string will fit on display
MBirney 6:1de103a19681 742 lcd.printString(buffer,0,0);
MBirney 6:1de103a19681 743 // lcd.drawRect(0,0,83,7,0);
MBirney 8:b857684a3983 744 lcd.refresh();
MBirney 9:77b83754460c 745 startGame.attach(&updateGameISR,gameSpeed); // start game isr speed determined by difficulty chosen
MBirney 8:b857684a3983 746
MBirney 9:77b83754460c 747 while (gameState==2) { // while user doesnt press reset
MBirney 6:1de103a19681 748
MBirney 7:2942e97924f0 749 // serial.printf("enter game loop");
MBirney 9:77b83754460c 750 if(updateGameFlag==1) { // check flag
MBirney 9:77b83754460c 751 leds=4; // green LED when game playing
MBirney 9:77b83754460c 752
MBirney 9:77b83754460c 753 updateGameFlag=0; // reset flag
MBirney 9:77b83754460c 754 updateJoystick(); // check joystick direction
MBirney 9:77b83754460c 755
MBirney 9:77b83754460c 756 updateSnakeArray(); // update the array
MBirney 9:77b83754460c 757 for (int i=0; i<snakeX.size(); i++) { // for all elements of snake draw 2x2 image
MBirney 6:1de103a19681 758 lcd.drawRect(snakeX[i],snakeY[i],1,1,1);
MBirney 9:77b83754460c 759
MBirney 6:1de103a19681 760 }
MBirney 6:1de103a19681 761 lcd.refresh();
MBirney 9:77b83754460c 762 previousDirection=joystick.direction; // update previous joystick direction
MBirney 7:2942e97924f0 763
MBirney 9:77b83754460c 764 if (selectedGameMode==BOUNDARY) checkForCollision();// if in boundary mode check for a collision
MBirney 7:2942e97924f0 765
MBirney 9:77b83754460c 766 checkForFood(); // check if snake has eaten food
MBirney 7:2942e97924f0 767
MBirney 6:1de103a19681 768 for (int i=0; i<snakeX.size()-1; i++) {
MBirney 6:1de103a19681 769 checkForCollisionWithSelf(i);
MBirney 8:b857684a3983 770 updateBrightness();
MBirney 6:1de103a19681 771
MBirney 7:2942e97924f0 772 }
MBirney 6:1de103a19681 773
MBirney 6:1de103a19681 774 }
MBirney 6:1de103a19681 775
MBirney 6:1de103a19681 776 }
MBirney 6:1de103a19681 777 }
MBirney 6:1de103a19681 778
MBirney 6:1de103a19681 779
MBirney 2:deb61a34ac31 780
MBirney 7:2942e97924f0 781 }
eencae 0:b85460bc73b9 782 }