renhao dai / Mbed 2 deprecated Joystick_snake_game

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Dependencies:   N5110 mbed

main.cpp@8:b01f638d23b4, 2015-05-07 (annotated)

Committer:
el14rd
Date:
Thu May 07 16:42:37 2015 +0000
Revision:
8:b01f638d23b4
Parent:
7:69ae0585d11a
Child:
9:c8ea9b4af873
snake version 2.1

;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
eencae 0:026fa541af7a 1 #include "mbed.h"
el14rd 1:f682aeb462f1 2 #include "N5110.h"
eencae 0:026fa541af7a 3 #define DIRECTION_TOLERANCE 0.05
eencae 0:026fa541af7a 4
el14rd 1:f682aeb462f1 5
el14rd 1:f682aeb462f1 6 //pins in
el14rd 1:f682aeb462f1 7 N5110 lcd(p7,p8,p9,p10,p11,p13,p26);
el14rd 1:f682aeb462f1 8
eencae 0:026fa541af7a 9 // connections for joystick
el14rd 8:b01f638d23b4 10 //DigitalIn button(p17);
el14rd 8:b01f638d23b4 11 //AnalogIn buttonA(p19);
el14rd 8:b01f638d23b4 12 InterruptIn button(p17);
el14rd 8:b01f638d23b4 13 DigitalIn buttonA(p19);
el14rd 1:f682aeb462f1 14 AnalogIn xPot(p15);
el14rd 1:f682aeb462f1 15 AnalogIn yPot(p16);
el14rd 4:41acda9d68c7 16 PwmOut buzzer(p21);
el14rd 4:41acda9d68c7 17 PwmOut blacklight(p26);
el14rd 4:41acda9d68c7 18 PwmOut led1(p24);
el14rd 4:41acda9d68c7 19 PwmOut led2(p23);
el14rd 8:b01f638d23b4 20 BusOut leds(LED4,LED3,LED2,LED1);
el14rd 4:41acda9d68c7 21
el14rd 1:f682aeb462f1 22 int i;
el14rd 1:f682aeb462f1 23 int j;
el14rd 2:d7b17623ba26 24 int X;
el14rd 2:d7b17623ba26 25 int Y;
el14rd 5:d8a06e7c54fb 26 char buffer[14];
el14rd 1:f682aeb462f1 27
el14rd 1:f682aeb462f1 28 int snakeX[100];
el14rd 1:f682aeb462f1 29 int snakeY[100];
eencae 0:026fa541af7a 30
eencae 0:026fa541af7a 31 // timer to regularly read the joystick
eencae 0:026fa541af7a 32 Ticker pollJoystick;
eencae 0:026fa541af7a 33 // Serial for debug
eencae 0:026fa541af7a 34 Serial serial(USBTX,USBRX);
eencae 0:026fa541af7a 35
eencae 0:026fa541af7a 36 // create enumerated type (0,1,2,3 etc. for direction)
eencae 0:026fa541af7a 37 // could be extended for diagonals etc.
eencae 0:026fa541af7a 38 enum DirectionName {
eencae 0:026fa541af7a 39 UP,
eencae 0:026fa541af7a 40 DOWN,
eencae 0:026fa541af7a 41 LEFT,
eencae 0:026fa541af7a 42 RIGHT,
eencae 0:026fa541af7a 43 CENTRE,
eencae 0:026fa541af7a 44 UNKNOWN
eencae 0:026fa541af7a 45 };
eencae 0:026fa541af7a 46
eencae 0:026fa541af7a 47 // struct for Joystick
eencae 0:026fa541af7a 48 typedef struct JoyStick Joystick;
eencae 0:026fa541af7a 49 struct JoyStick {
eencae 0:026fa541af7a 50 float x; // current x value
eencae 0:026fa541af7a 51 float x0; // 'centred' x value
eencae 0:026fa541af7a 52 float y; // current y value
eencae 0:026fa541af7a 53 float y0; // 'centred' y value
eencae 0:026fa541af7a 54 int button; // button state (assume pull-down used, so 1 = pressed, 0 = unpressed)
eencae 0:026fa541af7a 55 DirectionName direction; // current direction
eencae 0:026fa541af7a 56 };
eencae 0:026fa541af7a 57 // create struct variable
eencae 0:026fa541af7a 58 Joystick joystick;
eencae 0:026fa541af7a 59
el14rd 8:b01f638d23b4 60 //int buttonA = 0;
el14rd 8:b01f638d23b4 61 int pause = 0;
el14rd 8:b01f638d23b4 62 int buttonAFlag=0;
el14rd 7:69ae0585d11a 63 int buttonFlag = 0;
eencae 0:026fa541af7a 64 int printFlag = 0;
el14rd 3:04ff8cd27dd1 65 int nutFlag =1;
el14rd 5:d8a06e7c54fb 66 int lifeFlag =0;
el14rd 8:b01f638d23b4 67 //float frequency=659;
el14rd 8:b01f638d23b4 68 float frequency[]= {659,554,659,554,550,494,554,587,494,659,554,440};
el14rd 8:b01f638d23b4 69 float beat[]= {1,1,1,1,1,0.5,0.5,1,1,1,1,2};
eencae 0:026fa541af7a 70 // function prototypes
el14rd 1:f682aeb462f1 71 //void setPixel(int x, int y);
el14rd 1:f682aeb462f1 72 //void clearPixel(int x, int y);
el14rd 1:f682aeb462f1 73
eencae 0:026fa541af7a 74
el14rd 1:f682aeb462f1 75 typedef struct Nut Nut;
el14rd 1:f682aeb462f1 76 struct Nut {
el14rd 1:f682aeb462f1 77 int X;
el14rd 1:f682aeb462f1 78 int Y;
el14rd 1:f682aeb462f1 79 };
el14rd 1:f682aeb462f1 80 Nut nut;
eencae 0:026fa541af7a 81
el14rd 1:f682aeb462f1 82 typedef struct Snake Snake;
el14rd 1:f682aeb462f1 83 struct Snake {
el14rd 1:f682aeb462f1 84 int snakeX[100];
el14rd 1:f682aeb462f1 85 int snakeY[100];
el14rd 1:f682aeb462f1 86 int node;
el14rd 1:f682aeb462f1 87 DirectionName direction;
el14rd 1:f682aeb462f1 88 };
el14rd 1:f682aeb462f1 89 Snake snake;
eencae 0:026fa541af7a 90
el14rd 1:f682aeb462f1 91 DirectionName snakeDirection;
el14rd 1:f682aeb462f1 92
el14rd 2:d7b17623ba26 93 void initNut()
el14rd 2:d7b17623ba26 94 {
el14rd 3:04ff8cd27dd1 95 nut.X=rand()%84;
el14rd 3:04ff8cd27dd1 96 nut.Y=rand()%48;
el14rd 3:04ff8cd27dd1 97 //nutFlag=1;
el14rd 8:b01f638d23b4 98 }
el14rd 8:b01f638d23b4 99
el14rd 2:d7b17623ba26 100 void drawNut()
el14rd 2:d7b17623ba26 101 {
el14rd 3:04ff8cd27dd1 102 //int X = rand()%84;
el14rd 3:04ff8cd27dd1 103 //int Y = rand()%48;
el14rd 8:b01f638d23b4 104 if(nutFlag==1) {
el14rd 8:b01f638d23b4 105 lcd.drawCircle(nut.X,nut.Y,1,1);
el14rd 3:04ff8cd27dd1 106 }
el14rd 2:d7b17623ba26 107 }
eencae 0:026fa541af7a 108
el14rd 1:f682aeb462f1 109 void moveSnake()
el14rd 1:f682aeb462f1 110 {
el14rd 8:b01f638d23b4 111
el14rd 8:b01f638d23b4 112 if(joystick.direction == CENTRE) {
el14rd 4:41acda9d68c7 113 //snake.snakeX[0]+=1;
el14rd 4:41acda9d68c7 114 joystick.direction = CENTRE;
el14rd 3:04ff8cd27dd1 115 }
el14rd 4:41acda9d68c7 116 //else if(joystick.button == button){
el14rd 8:b01f638d23b4 117 // snake.snakeX[i]=snake.snakeX[i];
el14rd 8:b01f638d23b4 118 // snake.snakeY[i]=snake.snakeY[i];
el14rd 8:b01f638d23b4 119 // }
el14rd 8:b01f638d23b4 120 else if(joystick.direction == UNKNOWN) {
el14rd 8:b01f638d23b4 121 joystick.direction = UNKNOWN;
el14rd 8:b01f638d23b4 122 } else if(joystick.direction != UNKNOWN&&joystick.direction != CENTRE) {
el14rd 2:d7b17623ba26 123
el14rd 4:41acda9d68c7 124 if((joystick.direction == DOWN)&&(snake.direction!=LEFT)) {
el14rd 2:d7b17623ba26 125 snake.direction= RIGHT;
el14rd 4:41acda9d68c7 126 //snake.snakeX[0]+=1;
el14rd 8:b01f638d23b4 127
el14rd 4:41acda9d68c7 128 } else if((joystick.direction == UP)&&(snake.direction!=RIGHT)) {
el14rd 2:d7b17623ba26 129 snake.direction=LEFT;
el14rd 4:41acda9d68c7 130 //snake.snakeX[0]-=1;
el14rd 4:41acda9d68c7 131 } else if((joystick.direction == LEFT)&&(snake.direction!=DOWN)) {
el14rd 5:d8a06e7c54fb 132 snake.direction=UP;
el14rd 4:41acda9d68c7 133 //snake.snakeY[0]-=1;
el14rd 4:41acda9d68c7 134 } else if((joystick.direction == RIGHT)&&(snake.direction!=UP)) {
el14rd 5:d8a06e7c54fb 135 snake.direction=DOWN;
el14rd 4:41acda9d68c7 136 //snake.snakeY[0]+=1;
eencae 0:026fa541af7a 137 }
eencae 0:026fa541af7a 138
eencae 0:026fa541af7a 139 }
el14rd 8:b01f638d23b4 140
el14rd 2:d7b17623ba26 141 }
el14rd 2:d7b17623ba26 142
el14rd 2:d7b17623ba26 143 void initSnake()
el14rd 2:d7b17623ba26 144 {
el14rd 8:b01f638d23b4 145
el14rd 5:d8a06e7c54fb 146 snake.snakeX[0] = 16; //coordinate of head
el14rd 2:d7b17623ba26 147 snake.snakeY[0] = 10;
el14rd 5:d8a06e7c54fb 148 snake.snakeX[1] = 14;
el14rd 2:d7b17623ba26 149 snake.snakeY[1] = 10;
el14rd 4:41acda9d68c7 150 snake.snakeX[2] = 12;
el14rd 2:d7b17623ba26 151 snake.snakeY[2] = 10;
el14rd 5:d8a06e7c54fb 152 snake.snakeX[3] = 10;
el14rd 2:d7b17623ba26 153 snake.snakeY[3] = 10;
el14rd 5:d8a06e7c54fb 154 snake.node = 6; //node of snake
el14rd 4:41acda9d68c7 155 snake.direction = RIGHT;
el14rd 8:b01f638d23b4 156
el14rd 5:d8a06e7c54fb 157 }
el14rd 8:b01f638d23b4 158
el14rd 8:b01f638d23b4 159
el14rd 1:f682aeb462f1 160 void drawSnake()
el14rd 8:b01f638d23b4 161 {
el14rd 8:b01f638d23b4 162
el14rd 8:b01f638d23b4 163 for(i=0; i<snake.node-1; i++) {
el14rd 5:d8a06e7c54fb 164 lcd.drawCircle(snake.snakeX[i],snake.snakeY[i],1,1);
el14rd 5:d8a06e7c54fb 165 //lcd.setPixel(snake.snakeX[i],snake.snakeY[i]);
el14rd 8:b01f638d23b4 166
el14rd 8:b01f638d23b4 167 }
el14rd 8:b01f638d23b4 168
el14rd 1:f682aeb462f1 169 }
el14rd 1:f682aeb462f1 170
el14rd 1:f682aeb462f1 171 void startGmae()
el14rd 1:f682aeb462f1 172 {
el14rd 8:b01f638d23b4 173 //nutFlag = 1;
el14rd 5:d8a06e7c54fb 174 //lifeFlag = 0;
el14rd 2:d7b17623ba26 175 //snake.direction=LEFT;
el14rd 8:b01f638d23b4 176
el14rd 6:290173d4a22d 177 if((snake.snakeX[0]==nut.X)&&(snake.snakeY[0]==nut.Y)) { // if snake got nut ||(snake.snakeX[0]==nut.X-1)&&(snake.snakeY[0]==nut.Y-1)||(snake.snakeY[0]==nut.Y+1)&&(snake.snakeY[0]==nut.Y+1
el14rd 8:b01f638d23b4 178 snake.node+=1;
el14rd 8:b01f638d23b4 179 nutFlag=0; // new nut appear
el14rd 8:b01f638d23b4 180 buzzer.period(1/frequency[1]); // set PWM period
el14rd 8:b01f638d23b4 181 buzzer=0.1; // set duty cycle
el14rd 3:04ff8cd27dd1 182 }
el14rd 8:b01f638d23b4 183
el14rd 8:b01f638d23b4 184 if((snake.snakeX[0]!=nut.X)||(snake.snakeY[0]!=nut.Y)) {
el14rd 8:b01f638d23b4 185 buzzer=0;
el14rd 8:b01f638d23b4 186 }
el14rd 8:b01f638d23b4 187
el14rd 3:04ff8cd27dd1 188 if(nutFlag==0) { //set nut randomly
el14rd 1:f682aeb462f1 189 nut.X = rand()%83;
el14rd 1:f682aeb462f1 190 nut.Y = rand()%47;
el14rd 3:04ff8cd27dd1 191 nutFlag = 1;
el14rd 1:f682aeb462f1 192 }
el14rd 2:d7b17623ba26 193
el14rd 8:b01f638d23b4 194
el14rd 8:b01f638d23b4 195 for(i=3; i<snake.node; i++) { //if snake collide itself snake die
el14rd 8:b01f638d23b4 196 if(snake.snakeX[i]==snake.snakeX[0] && snake.snakeY[i]==snake.snakeY[0]) {
el14rd 8:b01f638d23b4 197 lifeFlag=1;
el14rd 7:69ae0585d11a 198 }
el14rd 8:b01f638d23b4 199 }
el14rd 8:b01f638d23b4 200
el14rd 8:b01f638d23b4 201
el14rd 8:b01f638d23b4 202 for(i=snake.node-1; i>0; i--) { //move snake
el14rd 8:b01f638d23b4 203 if(snake.snakeX[0]>1||snake.snakeX[0]<83||snake.snakeY[0]>1||snake.snakeY[0]<47) {
el14rd 8:b01f638d23b4 204 snake.snakeX[i]=snake.snakeX[i-1];
el14rd 8:b01f638d23b4 205 snake.snakeY[i]=snake.snakeY[i-1];
el14rd 8:b01f638d23b4 206 } else {
el14rd 8:b01f638d23b4 207 snake.snakeX[i]=snake.snakeX[i];
el14rd 8:b01f638d23b4 208 snake.snakeY[i]=snake.snakeY[i];
el14rd 8:b01f638d23b4 209 }
el14rd 8:b01f638d23b4 210 }
el14rd 8:b01f638d23b4 211
el14rd 1:f682aeb462f1 212
el14rd 1:f682aeb462f1 213 if(snake.snakeX[0]<1||snake.snakeX[0]>83||snake.snakeY[0]<1||snake.snakeY[0]>47) {
el14rd 5:d8a06e7c54fb 214 lifeFlag=1; // snake collide the corrider snake die
el14rd 1:f682aeb462f1 215 }
el14rd 8:b01f638d23b4 216
el14rd 1:f682aeb462f1 217 }
el14rd 1:f682aeb462f1 218
el14rd 8:b01f638d23b4 219 void printScore()
el14rd 8:b01f638d23b4 220 {
el14rd 6:290173d4a22d 221 lcd.printString("Your Score is",0,0);
el14rd 6:290173d4a22d 222 int score=snake.node-6;
el14rd 6:290173d4a22d 223 int length = sprintf(buffer," SCORE=%2d ",score);
el14rd 8:b01f638d23b4 224 lcd.printString(buffer,0,2 );
el14rd 6:290173d4a22d 225 lcd.printString("Press to start",0,4);
el14rd 8:b01f638d23b4 226 }
el14rd 7:69ae0585d11a 227
el14rd 8:b01f638d23b4 228 void buttonPressed()
el14rd 8:b01f638d23b4 229 {
el14rd 8:b01f638d23b4 230 buttonFlag =1;
el14rd 7:69ae0585d11a 231 }
el14rd 7:69ae0585d11a 232
el14rd 8:b01f638d23b4 233 void snakeModel()
el14rd 8:b01f638d23b4 234 {
el14rd 8:b01f638d23b4 235 for(int i=0; i<25; i+=5) {
el14rd 8:b01f638d23b4 236 lcd.clear();
el14rd 8:b01f638d23b4 237 lcd.printString("Press to start",1,1);
el14rd 8:b01f638d23b4 238
el14rd 8:b01f638d23b4 239 lcd.drawRect(44-i,21,1,1,1);
el14rd 8:b01f638d23b4 240 lcd.drawRect(46-i,21,1,1,1);
el14rd 8:b01f638d23b4 241 lcd.drawRect(48-i,21,1,1,1);
el14rd 8:b01f638d23b4 242
el14rd 8:b01f638d23b4 243 lcd.drawRect(42-i,23,1,1,1);
el14rd 8:b01f638d23b4 244 lcd.drawRect(44-i,23,1,1,1);
el14rd 8:b01f638d23b4 245 lcd.drawRect(46-i,23,1,1,1);
el14rd 8:b01f638d23b4 246 lcd.drawRect(48-i,23,1,1,1);
el14rd 8:b01f638d23b4 247
el14rd 8:b01f638d23b4 248 lcd.drawRect(40-i,25,1,1,1);
el14rd 8:b01f638d23b4 249 lcd.drawRect(42-i,25,1,1,1);
el14rd 8:b01f638d23b4 250 lcd.drawRect(44-i,25,1,1,1);
el14rd 8:b01f638d23b4 251 lcd.drawRect(46-i,25,1,1,1);
el14rd 8:b01f638d23b4 252 lcd.drawRect(48-i,25,1,1,1);
el14rd 8:b01f638d23b4 253 lcd.drawRect(50-i,25,1,1,1);
el14rd 8:b01f638d23b4 254
el14rd 8:b01f638d23b4 255 lcd.drawRect(40-i,27,1,1,1);
el14rd 8:b01f638d23b4 256 lcd.drawRect(42-i,27,1,1,1);
el14rd 8:b01f638d23b4 257 lcd.drawRect(44-i,27,1,1,1);
el14rd 8:b01f638d23b4 258 lcd.drawRect(46-i,27,1,1,1);
el14rd 8:b01f638d23b4 259 lcd.drawRect(48-i,27,1,1,1);
el14rd 8:b01f638d23b4 260 lcd.drawRect(50-i,27,1,1,1);//head
el14rd 8:b01f638d23b4 261
el14rd 8:b01f638d23b4 262 lcd.drawRect(38-i,29,1,1,0); //tougue
el14rd 8:b01f638d23b4 263 lcd.drawRect(40-i,31,1,1,0);
el14rd 8:b01f638d23b4 264
el14rd 8:b01f638d23b4 265 lcd.drawRect(46-i,29,1,1,1);
el14rd 8:b01f638d23b4 266 lcd.drawRect(48-i,29,1,1,1);
el14rd 8:b01f638d23b4 267 lcd.drawRect(50-i,29,1,1,1);
el14rd 8:b01f638d23b4 268
el14rd 8:b01f638d23b4 269 lcd.drawRect(46-i,31,1,1,1);
el14rd 8:b01f638d23b4 270 lcd.drawRect(48-i,31,1,1,1);
el14rd 8:b01f638d23b4 271 lcd.drawRect(50-i,31,1,1,1);
el14rd 8:b01f638d23b4 272
el14rd 8:b01f638d23b4 273 lcd.drawRect(44-i,33,1,1,1);
el14rd 8:b01f638d23b4 274 lcd.drawRect(46-i,33,1,1,1);
el14rd 8:b01f638d23b4 275 lcd.drawRect(48-i,33,1,1,1);
el14rd 8:b01f638d23b4 276
el14rd 8:b01f638d23b4 277 lcd.drawRect(44-i,35,1,1,1);
el14rd 8:b01f638d23b4 278 lcd.drawRect(46-i,35,1,1,1);
el14rd 8:b01f638d23b4 279 lcd.drawRect(48-i,35,1,1,1);
el14rd 8:b01f638d23b4 280
el14rd 8:b01f638d23b4 281 lcd.drawRect(42-i,37,1,1,1);
el14rd 8:b01f638d23b4 282 lcd.drawRect(44-i,37,1,1,1);
el14rd 8:b01f638d23b4 283 lcd.drawRect(46-i,37,1,1,1);
el14rd 6:290173d4a22d 284
el14rd 8:b01f638d23b4 285 lcd.drawRect(42-i,39,1,1,1);
el14rd 8:b01f638d23b4 286 lcd.drawRect(44-i,39,1,1,1);
el14rd 8:b01f638d23b4 287 lcd.drawRect(46-i,39,1,1,1);
el14rd 8:b01f638d23b4 288
el14rd 8:b01f638d23b4 289 lcd.drawRect(44-i,41,1,1,1);
el14rd 8:b01f638d23b4 290 lcd.drawRect(46-i,41,1,1,1);
el14rd 8:b01f638d23b4 291 lcd.drawRect(48-i,41,1,1,1);
el14rd 8:b01f638d23b4 292 lcd.drawRect(50-i,41,1,1,1);//neck
el14rd 8:b01f638d23b4 293
el14rd 8:b01f638d23b4 294 lcd.drawRect(80-i,41,1,1,1);//tail
el14rd 8:b01f638d23b4 295 lcd.drawRect(82-i,41,1,1,1);
el14rd 8:b01f638d23b4 296 lcd.drawRect(84-i,41,1,1,1);
el14rd 8:b01f638d23b4 297
el14rd 8:b01f638d23b4 298 lcd.drawRect(82-i,39,1,1,1);
el14rd 8:b01f638d23b4 299 lcd.drawRect(84-i,39,1,1,1);
el14rd 8:b01f638d23b4 300
el14rd 8:b01f638d23b4 301 lcd.drawRect(82-i,37,1,1,1);
el14rd 8:b01f638d23b4 302
el14rd 8:b01f638d23b4 303 lcd.drawRect(80-i,35,1,1,1);//tail
el14rd 8:b01f638d23b4 304
el14rd 8:b01f638d23b4 305 lcd.drawRect(46-i,43,1,1,1);
el14rd 8:b01f638d23b4 306 lcd.drawRect(48-i,43,1,1,1);
el14rd 8:b01f638d23b4 307 lcd.drawRect(50-i,43,1,1,1);
el14rd 8:b01f638d23b4 308 lcd.drawRect(52-i,43,1,1,1);
el14rd 8:b01f638d23b4 309 lcd.drawRect(54-i,43,1,1,1);
el14rd 8:b01f638d23b4 310 lcd.drawRect(56-i,43,1,1,1);
el14rd 8:b01f638d23b4 311 lcd.drawRect(58-i,43,1,1,1);
el14rd 8:b01f638d23b4 312 lcd.drawRect(60-i,43,1,1,1);
el14rd 8:b01f638d23b4 313 lcd.drawRect(62-i,43,1,1,1);
el14rd 8:b01f638d23b4 314 lcd.drawRect(64-i,43,1,1,1);
el14rd 8:b01f638d23b4 315 lcd.drawRect(66-i,43,1,1,1);
el14rd 8:b01f638d23b4 316 lcd.drawRect(68-i,43,1,1,1);
el14rd 8:b01f638d23b4 317 lcd.drawRect(70-i,43,1,1,1);
el14rd 8:b01f638d23b4 318 lcd.drawRect(72-i,43,1,1,1);
el14rd 8:b01f638d23b4 319 lcd.drawRect(74-i,43,1,1,1);
el14rd 8:b01f638d23b4 320 lcd.drawRect(76-i,43,1,1,1);
el14rd 8:b01f638d23b4 321 lcd.drawRect(78-i,43,1,1,1);
el14rd 8:b01f638d23b4 322 lcd.drawRect(80-i,43,1,1,1);
el14rd 8:b01f638d23b4 323 lcd.drawRect(82-i,43,1,1,1);
el14rd 8:b01f638d23b4 324
el14rd 8:b01f638d23b4 325 lcd.drawRect(48-i,45,1,1,1);
el14rd 8:b01f638d23b4 326 lcd.drawRect(50-i,45,1,1,1);
el14rd 8:b01f638d23b4 327 lcd.drawRect(52-i,45,1,1,1);
el14rd 8:b01f638d23b4 328 lcd.drawRect(54-i,45,1,1,1);
el14rd 8:b01f638d23b4 329 lcd.drawRect(56-i,45,1,1,1);
el14rd 8:b01f638d23b4 330 lcd.drawRect(58-i,45,1,1,1);
el14rd 8:b01f638d23b4 331 lcd.drawRect(60-i,45,1,1,1);
el14rd 8:b01f638d23b4 332 lcd.drawRect(62-i,45,1,1,1);
el14rd 8:b01f638d23b4 333 lcd.drawRect(64-i,45,1,1,1);
el14rd 8:b01f638d23b4 334 lcd.drawRect(66-i,45,1,1,1);
el14rd 8:b01f638d23b4 335 lcd.drawRect(68-i,45,1,1,1);
el14rd 8:b01f638d23b4 336 lcd.drawRect(70-i,45,1,1,1);
el14rd 8:b01f638d23b4 337 lcd.drawRect(72-i,45,1,1,1);
el14rd 8:b01f638d23b4 338 lcd.drawRect(74-i,45,1,1,1);
el14rd 8:b01f638d23b4 339 lcd.drawRect(76-i,45,1,1,1);
el14rd 8:b01f638d23b4 340 lcd.drawRect(78-i,45,1,1,1);
el14rd 8:b01f638d23b4 341 lcd.drawRect(80-i,45,1,1,1);
el14rd 7:69ae0585d11a 342 wait(0.5);
el14rd 8:b01f638d23b4 343 //lcd.refresh();
el14rd 7:69ae0585d11a 344 }
el14rd 8:b01f638d23b4 345
el14rd 8:b01f638d23b4 346 }
el14rd 1:f682aeb462f1 347 //switch(snake.direction)
el14rd 1:f682aeb462f1 348 //{
el14rd 1:f682aeb462f1 349 // case RIGHT:snake.X[0]+=1;
el14rd 1:f682aeb462f1 350 // break;    
el14rd 1:f682aeb462f1 351 // case LEFT:snake.X[0]-=1;
el14rd 1:f682aeb462f1 352 // break;     
el14rd 1:f682aeb462f1 353 // case UP:snake.Y[0]-=1;
el14rd 1:f682aeb462f1 354 // break;
el14rd 1:f682aeb462f1 355 // case DOWN:snake.Y[0]+=1;
el14rd 1:f682aeb462f1 356 // break;
el14rd 1:f682aeb462f1 357 // }
el14rd 1:f682aeb462f1 358
el14rd 1:f682aeb462f1 359 //end of while(joystick.direction = UNKNOWN)
el14rd 1:f682aeb462f1 360
el14rd 1:f682aeb462f1 361
eencae 0:026fa541af7a 362 // read default positions of the joystick to calibrate later readings
eencae 0:026fa541af7a 363 void calibrateJoystick()
eencae 0:026fa541af7a 364 {
eencae 0:026fa541af7a 365 button.mode(PullDown);
eencae 0:026fa541af7a 366 // must not move during calibration
eencae 0:026fa541af7a 367 joystick.x0 = xPot; // initial positions in the range 0.0 to 1.0 (0.5 if centred exactly)
eencae 0:026fa541af7a 368 joystick.y0 = yPot;
eencae 0:026fa541af7a 369 }
el14rd 1:f682aeb462f1 370
el14rd 2:d7b17623ba26 371
eencae 0:026fa541af7a 372 void updateJoystick()
eencae 0:026fa541af7a 373 {
eencae 0:026fa541af7a 374 // read current joystick values relative to calibrated values (in range -0.5 to 0.5, 0.0 is centred)
eencae 0:026fa541af7a 375 joystick.x = xPot - joystick.x0;
eencae 0:026fa541af7a 376 joystick.y = yPot - joystick.y0;
eencae 0:026fa541af7a 377 // read button state
eencae 0:026fa541af7a 378 joystick.button = button;
eencae 0:026fa541af7a 379
eencae 0:026fa541af7a 380 // calculate direction depending on x,y values
eencae 0:026fa541af7a 381 // tolerance allows a little lee-way in case joystick not exactly in the stated direction
eencae 0:026fa541af7a 382 if ( fabs(joystick.y) < DIRECTION_TOLERANCE && fabs(joystick.x) < DIRECTION_TOLERANCE) {
eencae 0:026fa541af7a 383 joystick.direction = CENTRE;
el14rd 4:41acda9d68c7 384 //LED OFF
eencae 0:026fa541af7a 385 } else if ( joystick.y > DIRECTION_TOLERANCE && fabs(joystick.x) < DIRECTION_TOLERANCE) {
eencae 0:026fa541af7a 386 joystick.direction = UP;
el14rd 4:41acda9d68c7 387 //LIGHT LED1
el14rd 1:f682aeb462f1 388 //snake.direction = UP;
eencae 0:026fa541af7a 389 } else if ( joystick.y < DIRECTION_TOLERANCE && fabs(joystick.x) < DIRECTION_TOLERANCE) {
eencae 0:026fa541af7a 390 joystick.direction = DOWN;
el14rd 4:41acda9d68c7 391 //LIGHT LED2
eencae 0:026fa541af7a 392 } else if ( joystick.x > DIRECTION_TOLERANCE && fabs(joystick.y) < DIRECTION_TOLERANCE) {
eencae 0:026fa541af7a 393 joystick.direction = RIGHT;
el14rd 4:41acda9d68c7 394 //LIGHT LED3
eencae 0:026fa541af7a 395 } else if ( joystick.x < DIRECTION_TOLERANCE && fabs(joystick.y) < DIRECTION_TOLERANCE) {
eencae 0:026fa541af7a 396 joystick.direction = LEFT;
eencae 0:026fa541af7a 397 } else {
eencae 0:026fa541af7a 398 joystick.direction = UNKNOWN;
eencae 0:026fa541af7a 399 }
eencae 0:026fa541af7a 400 // set flag for printing
eencae 0:026fa541af7a 401 printFlag = 1;
el14rd 1:f682aeb462f1 402 }
el14rd 1:f682aeb462f1 403
el14rd 1:f682aeb462f1 404 void updateSnake()
el14rd 1:f682aeb462f1 405 {
el14rd 1:f682aeb462f1 406 // get direction of joystick and update snake
el14rd 4:41acda9d68c7 407 if (snake.direction == LEFT) {
el14rd 7:69ae0585d11a 408 snake.snakeX[0]-=1;
el14rd 4:41acda9d68c7 409 //LED1
el14rd 4:41acda9d68c7 410 if(snake.snakeX[0]<1) {
el14rd 4:41acda9d68c7 411 snake.snakeX[0]=1;
el14rd 8:b01f638d23b4 412
el14rd 1:f682aeb462f1 413 }//will stop at the top edge
el14rd 1:f682aeb462f1 414
el14rd 1:f682aeb462f1 415 }
el14rd 4:41acda9d68c7 416 if (snake.direction == RIGHT) {
el14rd 7:69ae0585d11a 417 snake.snakeX[0]+=1;
el14rd 4:41acda9d68c7 418 //LED2
el14rd 4:41acda9d68c7 419 if(snake.snakeX[0]>83) {
el14rd 4:41acda9d68c7 420 snake.snakeX[0]=83;
el14rd 1:f682aeb462f1 421 }//will stop at the bottom edge
el14rd 1:f682aeb462f1 422 }
el14rd 4:41acda9d68c7 423 if (snake.direction == UP) {
el14rd 7:69ae0585d11a 424 snake.snakeY[0]-=1;
el14rd 4:41acda9d68c7 425 if(snake.snakeY[0]>47) {
el14rd 4:41acda9d68c7 426 snake.snakeY[0]=47;
el14rd 1:f682aeb462f1 427 }//will stop at the left edge
el14rd 1:f682aeb462f1 428
el14rd 1:f682aeb462f1 429 }
el14rd 4:41acda9d68c7 430 if (snake.direction == DOWN) {
el14rd 7:69ae0585d11a 431 snake.snakeY[0]+=1;
el14rd 4:41acda9d68c7 432 if(snake.snakeY[0]<1) {
el14rd 4:41acda9d68c7 433 snake.snakeY[0]=1;
el14rd 1:f682aeb462f1 434 }//will stop at the right edge
el14rd 1:f682aeb462f1 435
el14rd 1:f682aeb462f1 436 }
el14rd 8:b01f638d23b4 437 if(snake.direction == CENTRE) {
el14rd 4:41acda9d68c7 438 snake.snakeX[0]+=1;
el14rd 8:b01f638d23b4 439 }
el14rd 8:b01f638d23b4 440 if(snake.direction == UNKNOWN) {
el14rd 5:d8a06e7c54fb 441 snake.snakeX[0]+=1;
el14rd 8:b01f638d23b4 442 }
el14rd 1:f682aeb462f1 443 }
el14rd 1:f682aeb462f1 444
el14rd 1:f682aeb462f1 445
el14rd 2:d7b17623ba26 446
el14rd 1:f682aeb462f1 447 //main code
el14rd 1:f682aeb462f1 448 int main()
el14rd 1:f682aeb462f1 449 {
el14rd 1:f682aeb462f1 450 lcd.init();
el14rd 1:f682aeb462f1 451 lcd.setBrightness(0.5); // put LED backlight on 50%
el14rd 1:f682aeb462f1 452 calibrateJoystick(); // get centred values of joystick
el14rd 1:f682aeb462f1 453 pollJoystick.attach(&updateJoystick,1.0/10.0); // read joystick 10 times per second
el14rd 1:f682aeb462f1 454 lcd.refresh();
el14rd 2:d7b17623ba26 455 initNut();
el14rd 2:d7b17623ba26 456 initSnake();
el14rd 8:b01f638d23b4 457 button.rise(&buttonPressed);
el14rd 8:b01f638d23b4 458 buttonA.mode(PullDown);
el14rd 8:b01f638d23b4 459 //pauseGame();
el14rd 4:41acda9d68c7 460 //printScore();
el14rd 1:f682aeb462f1 461
el14rd 1:f682aeb462f1 462 //infinite while loop
el14rd 1:f682aeb462f1 463 while(1) {
el14rd 8:b01f638d23b4 464
el14rd 8:b01f638d23b4 465 if(buttonFlag==0) { //joystick button unpressed
el14rd 8:b01f638d23b4 466 lcd.printString("Press to start",1,1);
el14rd 8:b01f638d23b4 467 snakeModel();
el14rd 8:b01f638d23b4 468 } else {
el14rd 8:b01f638d23b4 469
el14rd 8:b01f638d23b4 470 leds = 0;
el14rd 8:b01f638d23b4 471
el14rd 8:b01f638d23b4 472 if(buttonA) { // if button pressed, toggle pause
el14rd 8:b01f638d23b4 473 wait_ms(50);
el14rd 8:b01f638d23b4 474 pause = !pause;
el14rd 8:b01f638d23b4 475 leds = 15;
el14rd 8:b01f638d23b4 476 }
el14rd 8:b01f638d23b4 477
el14rd 8:b01f638d23b4 478 while(pause) {
el14rd 8:b01f638d23b4 479 leds = 3;
el14rd 8:b01f638d23b4 480 if(buttonA) { // if button pressed, toggle pause
el14rd 8:b01f638d23b4 481 wait_ms(50);
el14rd 8:b01f638d23b4 482 pause = 0;
el14rd 8:b01f638d23b4 483 leds = 1;
el14rd 8:b01f638d23b4 484
el14rd 8:b01f638d23b4 485 }
el14rd 8:b01f638d23b4 486 }
el14rd 8:b01f638d23b4 487 }
el14rd 8:b01f638d23b4 488
el14rd 8:b01f638d23b4 489
el14rd 1:f682aeb462f1 490 lcd.clear();
el14rd 5:d8a06e7c54fb 491 lifeFlag=0;
el14rd 1:f682aeb462f1 492 updateSnake();
el14rd 1:f682aeb462f1 493 drawSnake();
el14rd 2:d7b17623ba26 494 drawNut();
el14rd 1:f682aeb462f1 495 moveSnake();
el14rd 1:f682aeb462f1 496 startGmae();
el14rd 8:b01f638d23b4 497 lcd.refresh();
el14rd 8:b01f638d23b4 498 wait(0.08);
el14rd 8:b01f638d23b4 499 //pauseGame();
el14rd 8:b01f638d23b4 500 //if (buttonFlag==1){
el14rd 8:b01f638d23b4 501 //while(1){
el14rd 8:b01f638d23b4 502 // buttonFlag =0;
el14rd 8:b01f638d23b4 503 //if(buttonFlag ==1)
el14rd 8:b01f638d23b4 504 // break;
el14rd 8:b01f638d23b4 505 //}
el14rd 8:b01f638d23b4 506 // }
el14rd 8:b01f638d23b4 507 if(lifeFlag==1) {
el14rd 8:b01f638d23b4 508 lcd.clear();
el14rd 8:b01f638d23b4 509 lcd.refresh();
el14rd 8:b01f638d23b4 510 printScore();
el14rd 8:b01f638d23b4 511 for(int i=0; i<=11; i++) {
el14rd 8:b01f638d23b4 512 buzzer.period(1/(frequency[i])); // set PWM period
el14rd 8:b01f638d23b4 513 buzzer=0.1; // set duty cycle
el14rd 8:b01f638d23b4 514 wait(0.5*beat[i]);
el14rd 8:b01f638d23b4 515 }
el14rd 8:b01f638d23b4 516 }
el14rd 8:b01f638d23b4 517
el14rd 8:b01f638d23b4 518
el14rd 8:b01f638d23b4 519 if (buttonFlag==1) {
el14rd 8:b01f638d23b4 520 lifeFlag =0;
el14rd 8:b01f638d23b4 521 }
el14rd 8:b01f638d23b4 522
el14rd 8:b01f638d23b4 523
el14rd 8:b01f638d23b4 524 }
el14rd 8:b01f638d23b4 525
el14rd 8:b01f638d23b4 526
el14rd 1:f682aeb462f1 527 }
el14rd 1:f682aeb462f1 528