ELEC2645 (2016/17) / SnekGame

Balint Bogdan 2645 project, 200966741

Dependents:   2645Game_el15bb

Snake.cpp@3:b24ef00836c5, 2017-05-05 (annotated)

Committer:
Nefos
Date:
Fri May 05 13:56:24 2017 +0000
Revision:
3:b24ef00836c5
Parent:
2:5e04e34a3b66
Child:
4:c74ec3f409f9
pretty solid code, bugs: snake _dir, some wall detection, self detection, need comments

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Nefos 0:2eb4d7e86e2f 1 #include "Snake.h"
Nefos 0:2eb4d7e86e2f 2
Nefos 0:2eb4d7e86e2f 3
Nefos 2:5e04e34a3b66 4 #define WIDTH 84
Nefos 2:5e04e34a3b66 5 #define HEIGHT 48
Nefos 2:5e04e34a3b66 6 #define CEILING 8
Nefos 2:5e04e34a3b66 7 #define FLOOR 48
Nefos 2:5e04e34a3b66 8
Nefos 0:2eb4d7e86e2f 9 snakePart snek;
Nefos 0:2eb4d7e86e2f 10
Nefos 1:93a4cb86f100 11
Nefos 1:93a4cb86f100 12
Nefos 0:2eb4d7e86e2f 13 Snake::Snake()
Nefos 0:2eb4d7e86e2f 14 {
Nefos 0:2eb4d7e86e2f 15
Nefos 0:2eb4d7e86e2f 16 }
Nefos 0:2eb4d7e86e2f 17 Snake::~Snake()
Nefos 0:2eb4d7e86e2f 18 {
Nefos 0:2eb4d7e86e2f 19
Nefos 0:2eb4d7e86e2f 20 }
Nefos 0:2eb4d7e86e2f 21
Nefos 3:b24ef00836c5 22 void Snake::init(int x, int y, int lenght, int _live){
Nefos 0:2eb4d7e86e2f 23
Nefos 0:2eb4d7e86e2f 24
Nefos 1:93a4cb86f100 25
Nefos 0:2eb4d7e86e2f 26 //initalizing the starting variables
Nefos 3:b24ef00836c5 27 //snek._x[0]=x;
Nefos 3:b24ef00836c5 28 //snek._y[0]=y;
Nefos 3:b24ef00836c5 29 startx=x;
Nefos 3:b24ef00836c5 30 starty=y;
Nefos 3:b24ef00836c5 31 startl=lenght;
Nefos 3:b24ef00836c5 32 live=_live;
Nefos 3:b24ef00836c5 33 if (live==0){
Nefos 3:b24ef00836c5 34 live=3;
Nefos 3:b24ef00836c5 35 }
Nefos 0:2eb4d7e86e2f 36 _length = lenght;
Nefos 3:b24ef00836c5 37
Nefos 3:b24ef00836c5 38 _food.init();
Nefos 0:2eb4d7e86e2f 39 for (int i=0;_length>i;i++)
Nefos 0:2eb4d7e86e2f 40 {
Nefos 0:2eb4d7e86e2f 41 snek._x[i]=x+i;
Nefos 0:2eb4d7e86e2f 42 snek._y[i]=y;
Nefos 0:2eb4d7e86e2f 43 snek._dir[i]=1;
Nefos 0:2eb4d7e86e2f 44 }
Nefos 1:93a4cb86f100 45 snek._x[_length]=x+_length;
Nefos 1:93a4cb86f100 46 snek._y[_length]=y;
Nefos 1:93a4cb86f100 47
Nefos 1:93a4cb86f100 48 /* snek._y[0]=y;
Nefos 1:93a4cb86f100 49 snek._y[1]=y+1;
Nefos 1:93a4cb86f100 50 snek._y[2]=y+2;
Nefos 1:93a4cb86f100 51 snek._y[3]=y+2;
Nefos 1:93a4cb86f100 52 snek._y[4]=y+3;
Nefos 1:93a4cb86f100 53 snek._y[5]=y+3;
Nefos 1:93a4cb86f100 54 snek._y[6]=y+4;*/
Nefos 0:2eb4d7e86e2f 55 _direction = 1;//1 is East, 2 is South, 3 is West, 4 is North
Nefos 0:2eb4d7e86e2f 56
Nefos 0:2eb4d7e86e2f 57
Nefos 3:b24ef00836c5 58
Nefos 1:93a4cb86f100 59 printf("xog is %d ", snek._x[_length-1]);
Nefos 1:93a4cb86f100 60 //printf("initalized");
Nefos 0:2eb4d7e86e2f 61 }
Nefos 0:2eb4d7e86e2f 62
Nefos 0:2eb4d7e86e2f 63 void Snake::draw(N5110 &lcd){
Nefos 3:b24ef00836c5 64 checkWallCollision(lcd);
Nefos 3:b24ef00836c5 65 if (live!=0){
Nefos 3:b24ef00836c5 66 lcd.clear();
Nefos 3:b24ef00836c5 67 char buffer1[14];
Nefos 3:b24ef00836c5 68 char buffer2[14];
Nefos 3:b24ef00836c5 69 sprintf(buffer1,"%2d",live);
Nefos 3:b24ef00836c5 70 sprintf(buffer2,"%2d",_length);
Nefos 3:b24ef00836c5 71 lcd.printString(buffer1,25,0);
Nefos 3:b24ef00836c5 72 lcd.printString(buffer2,70,0);
Nefos 3:b24ef00836c5 73 _food.draw(lcd);
Nefos 3:b24ef00836c5 74 lcd.drawRect(0,8,84,48-8,FILL_TRANSPARENT);
Nefos 3:b24ef00836c5 75 lcd.printString("Life:",0,0);
Nefos 3:b24ef00836c5 76 lcd.printString("Pts:",40,0);
Nefos 3:b24ef00836c5 77
Nefos 3:b24ef00836c5 78 for ( int i=0; _length>i;i++){
Nefos 3:b24ef00836c5 79 if (snek._x!=0)
Nefos 3:b24ef00836c5 80 {
Nefos 3:b24ef00836c5 81 if (snek._y!=0)
Nefos 3:b24ef00836c5 82 {
Nefos 3:b24ef00836c5 83 lcd.setPixel(snek._x[i],snek._y[i]);
Nefos 3:b24ef00836c5 84 }
Nefos 3:b24ef00836c5 85 }
Nefos 3:b24ef00836c5 86
Nefos 3:b24ef00836c5 87
Nefos 3:b24ef00836c5 88
Nefos 3:b24ef00836c5 89 lcd.refresh();
Nefos 3:b24ef00836c5 90
Nefos 3:b24ef00836c5 91 //printf("drawn");
Nefos 3:b24ef00836c5 92 }
Nefos 3:b24ef00836c5 93 }//live loop
Nefos 0:2eb4d7e86e2f 94 }
Nefos 0:2eb4d7e86e2f 95 void Snake::update(Gamepad &pad){
Nefos 2:5e04e34a3b66 96
Nefos 3:b24ef00836c5 97 if (live!=0){
Nefos 0:2eb4d7e86e2f 98
Nefos 3:b24ef00836c5 99 d=pad.get_direction();
Nefos 3:b24ef00836c5 100 startx=snek._x[0];
Nefos 3:b24ef00836c5 101
Nefos 3:b24ef00836c5 102 printf("x+1 is %d", snek._x[_length+1]);
Nefos 3:b24ef00836c5 103 printf("y+1 is %d", snek._y[_length+1]);
Nefos 3:b24ef00836c5 104 printf("dir+1 is %d", snek._dir[_length+1]);
Nefos 3:b24ef00836c5 105 printf("length is %d", _length);
Nefos 3:b24ef00836c5 106
Nefos 3:b24ef00836c5 107 /*if ( pad.check_event(Gamepad::A_PRESSED) == true)//testing the add_point manually
Nefos 0:2eb4d7e86e2f 108 {
Nefos 3:b24ef00836c5 109 snek._x[_length+1]=snek._x[_length];//-1
Nefos 3:b24ef00836c5 110 snek._y[_length+1]=snek._y[_length];
Nefos 3:b24ef00836c5 111 snek._dir[_length+1]=snek._dir[_length-1];
Nefos 3:b24ef00836c5 112 _length=_length+1;
Nefos 3:b24ef00836c5 113 printf("length+1 is %d", _length);
Nefos 0:2eb4d7e86e2f 114
Nefos 3:b24ef00836c5 115 }
Nefos 3:b24ef00836c5 116 */
Nefos 3:b24ef00836c5 117
Nefos 3:b24ef00836c5 118
Nefos 3:b24ef00836c5 119 //printf("x is %d ", snek._x[_length-1]);
Nefos 3:b24ef00836c5 120 if (snek._dir[_length-1]==1)
Nefos 3:b24ef00836c5 121 {
Nefos 3:b24ef00836c5 122 snek._x[_length]++;
Nefos 0:2eb4d7e86e2f 123 }
Nefos 3:b24ef00836c5 124
Nefos 1:93a4cb86f100 125 if (snek._dir[_length-1]==2)
Nefos 3:b24ef00836c5 126 {
Nefos 3:b24ef00836c5 127 snek._y[_length]--;
Nefos 0:2eb4d7e86e2f 128
Nefos 0:2eb4d7e86e2f 129 }
Nefos 3:b24ef00836c5 130
Nefos 3:b24ef00836c5 131 if (snek._dir[_length-1]==3)
Nefos 3:b24ef00836c5 132 {
Nefos 3:b24ef00836c5 133 snek._x[_length]--;
Nefos 1:93a4cb86f100 134 }
Nefos 1:93a4cb86f100 135
Nefos 3:b24ef00836c5 136 if (snek._dir[_length-1]==4)
Nefos 3:b24ef00836c5 137 {
Nefos 3:b24ef00836c5 138 snek._y[_length]++;
Nefos 3:b24ef00836c5 139 }
Nefos 1:93a4cb86f100 140
Nefos 3:b24ef00836c5 141 for (int i=0 ;_length<i ;i++)
Nefos 3:b24ef00836c5 142 {
Nefos 3:b24ef00836c5 143 snek._x[i]=snek._x[i+1];
Nefos 3:b24ef00836c5 144 snek._y[i]=snek._y[i+1];
Nefos 3:b24ef00836c5 145 //printf("done");
Nefos 3:b24ef00836c5 146 }
Nefos 3:b24ef00836c5 147
Nefos 3:b24ef00836c5 148
Nefos 0:2eb4d7e86e2f 149 //check dpad which way it is pointing
Nefos 0:2eb4d7e86e2f 150 //set direction accordingly, 1 is right, up is 2, 3 is left and 4 is down
Nefos 0:2eb4d7e86e2f 151 //set a breakpoint at head by snakeX/Y[i]
Nefos 0:2eb4d7e86e2f 152 //switch case to make sure direction is good
Nefos 0:2eb4d7e86e2f 153 //if head == food, _length++, and -direction we add 1 length
Nefos 0:2eb4d7e86e2f 154 // if head==wall game over
Nefos 3:b24ef00836c5 155 if (d==N){
Nefos 3:b24ef00836c5 156
Nefos 3:b24ef00836c5 157 if (snek._dir[_length-1]!=4)
Nefos 3:b24ef00836c5 158 {
Nefos 3:b24ef00836c5 159 snek._dir[_length-1] = 2;
Nefos 3:b24ef00836c5 160 }
Nefos 3:b24ef00836c5 161
Nefos 3:b24ef00836c5 162 }
Nefos 3:b24ef00836c5 163
Nefos 3:b24ef00836c5 164 if (d==E){
Nefos 0:2eb4d7e86e2f 165
Nefos 3:b24ef00836c5 166 if (snek._dir[_length-1]!=3)
Nefos 0:2eb4d7e86e2f 167 {
Nefos 3:b24ef00836c5 168 snek._dir[_length-1] = 1;
Nefos 3:b24ef00836c5 169 }
Nefos 3:b24ef00836c5 170
Nefos 3:b24ef00836c5 171 }
Nefos 3:b24ef00836c5 172 if (d==W){
Nefos 3:b24ef00836c5 173
Nefos 3:b24ef00836c5 174 if (snek._dir[_length-1]!=1)
Nefos 3:b24ef00836c5 175 {
Nefos 3:b24ef00836c5 176 snek._dir[_length-1] = 3;
Nefos 0:2eb4d7e86e2f 177 }
Nefos 0:2eb4d7e86e2f 178
Nefos 0:2eb4d7e86e2f 179
Nefos 0:2eb4d7e86e2f 180 }
Nefos 3:b24ef00836c5 181 if (d==S){
Nefos 0:2eb4d7e86e2f 182
Nefos 3:b24ef00836c5 183 if (snek._dir[_length-1]!=2)
Nefos 1:93a4cb86f100 184 {
Nefos 1:93a4cb86f100 185 snek._dir[_length-1] = 4;
Nefos 1:93a4cb86f100 186 }
Nefos 1:93a4cb86f100 187
Nefos 1:93a4cb86f100 188
Nefos 1:93a4cb86f100 189 }
Nefos 3:b24ef00836c5 190
Nefos 3:b24ef00836c5 191 printf("updated ");
Nefos 3:b24ef00836c5 192 add_point();
Nefos 3:b24ef00836c5 193 }//live loop
Nefos 3:b24ef00836c5 194 }
Nefos 3:b24ef00836c5 195
Nefos 3:b24ef00836c5 196 void Snake::add_point(){
Nefos 3:b24ef00836c5 197
Nefos 3:b24ef00836c5 198 posXY foodPos = _food.returnPos();
Nefos 3:b24ef00836c5 199 if(snek._x[_length-1]==foodPos.x && snek._y[_length-1]== foodPos.y)
Nefos 3:b24ef00836c5 200 {
Nefos 3:b24ef00836c5 201 snek._x[_length+1]=snek._x[_length];//-1
Nefos 3:b24ef00836c5 202 snek._y[_length+1]=snek._y[_length];
Nefos 3:b24ef00836c5 203 snek._dir[_length+1]=snek._dir[_length-1];
Nefos 3:b24ef00836c5 204 _length=_length+1;
Nefos 3:b24ef00836c5 205 _food.respawn();
Nefos 3:b24ef00836c5 206 }
Nefos 3:b24ef00836c5 207 }//end of add_point
Nefos 0:2eb4d7e86e2f 208
Nefos 2:5e04e34a3b66 209 void Snake::deadSnake(N5110 &lcd){
Nefos 3:b24ef00836c5 210
Nefos 3:b24ef00836c5 211 /*if (live!=0){
Nefos 3:b24ef00836c5 212 lcd.clear();
Nefos 3:b24ef00836c5 213 lcd.printString("Game Over",0,1);
Nefos 3:b24ef00836c5 214 lcd.printString("Press Start",0,2);
Nefos 3:b24ef00836c5 215 lcd.printString("To Continue",0,3);
Nefos 3:b24ef00836c5 216 lcd.refresh();
Nefos 3:b24ef00836c5 217 live--;
Nefos 3:b24ef00836c5 218 while ( pad.check_event(Gamepad::START_PRESSED) == false){
Nefos 3:b24ef00836c5 219 pad.leds_on();
Nefos 3:b24ef00836c5 220 wait(0.05);
Nefos 3:b24ef00836c5 221 pad.leds_off();
Nefos 3:b24ef00836c5 222 wait(0.05);
Nefos 3:b24ef00836c5 223 }
Nefos 3:b24ef00836c5 224 init(startx,starty,startl,live);
Nefos 3:b24ef00836c5 225 }*/
Nefos 3:b24ef00836c5 226 //live--;
Nefos 3:b24ef00836c5 227 init(startx,starty,startl,live);
Nefos 3:b24ef00836c5 228 if (live==0){
Nefos 3:b24ef00836c5 229 lcd.clear();
Nefos 3:b24ef00836c5 230 lcd.printString("Game Over",0,1);
Nefos 3:b24ef00836c5 231 lcd.printString("Press Start",0,2);
Nefos 3:b24ef00836c5 232 lcd.printString("To restart",0,3);
Nefos 3:b24ef00836c5 233 lcd.refresh();
Nefos 3:b24ef00836c5 234 /* live--;
Nefos 3:b24ef00836c5 235 while ( pad.check_event(Gamepad::START_PRESSED) == false){
Nefos 3:b24ef00836c5 236 pad.leds_on();
Nefos 3:b24ef00836c5 237 wait(0.2);
Nefos 3:b24ef00836c5 238 pad.leds_off();
Nefos 3:b24ef00836c5 239 wait(0.2);
Nefos 3:b24ef00836c5 240 }*/
Nefos 3:b24ef00836c5 241 // init(startx,starty,startl,live);
Nefos 3:b24ef00836c5 242 }
Nefos 3:b24ef00836c5 243 lcd.clear();
Nefos 2:5e04e34a3b66 244 lcd.printString("Game Over",0,1);
Nefos 2:5e04e34a3b66 245 lcd.refresh();
Nefos 3:b24ef00836c5 246 live--;
Nefos 2:5e04e34a3b66 247
Nefos 3:b24ef00836c5 248 }//end of deadSnake
Nefos 3:b24ef00836c5 249
Nefos 2:5e04e34a3b66 250 void Snake::checkWallCollision(N5110 &lcd){
Nefos 2:5e04e34a3b66 251
Nefos 3:b24ef00836c5 252 if (snek._x[_length]==WIDTH||snek._x[_length]==0)//if snake head hits side walls
Nefos 3:b24ef00836c5 253 {
Nefos 3:b24ef00836c5 254 deadSnake(lcd);
Nefos 3:b24ef00836c5 255 }
Nefos 3:b24ef00836c5 256 if (snek._y[_length]==CEILING||snek._y[_length]==FLOOR)//if snake hits top or bottom walls
Nefos 3:b24ef00836c5 257 {
Nefos 3:b24ef00836c5 258 deadSnake(lcd);
Nefos 3:b24ef00836c5 259 }
Nefos 2:5e04e34a3b66 260
Nefos 3:b24ef00836c5 261 }//end of checkWallCollision
Nefos 2:5e04e34a3b66 262