Andrew Knowles / Mbed 2 deprecated Fish_eat_V2

Simple fish eat program

Dependencies:   mbed mbed-rtos N5110 ShiftReg Tone

classes/Game.cpp@10:e221bd1ce3ec, 2021-04-20 (annotated)

Committer:
el18a2k
Date:
Tue Apr 20 15:35:00 2021 +0000
Revision:
10:e221bd1ce3ec
Child:
11:7c1e2a9303d3
gameplay implemented

Who changed what in which revision?

UserRevisionLine numberNew contents of line
el18a2k 10:e221bd1ce3ec 1 #include "Game.h"
el18a2k 10:e221bd1ce3ec 2
el18a2k 10:e221bd1ce3ec 3 ShiftReg _shift;
el18a2k 10:e221bd1ce3ec 4 Graphics _graphics;
el18a2k 10:e221bd1ce3ec 5
el18a2k 10:e221bd1ce3ec 6 //plays the game
el18a2k 10:e221bd1ce3ec 7 void Game::gamePlay(N5110 &lcd, DIRECTION direction){
el18a2k 10:e221bd1ce3ec 8 lcd.clear();
el18a2k 10:e221bd1ce3ec 9 lcd.drawRect(0,0,40,9, FILL_TRANSPARENT); //creates the growth bar
el18a2k 10:e221bd1ce3ec 10 lcd.drawRect(0,8,84,40,FILL_TRANSPARENT); //draws screen border
el18a2k 10:e221bd1ce3ec 11 lcd.drawRect(0,0,rect_width,9, FILL_BLACK); //fills the growth bar
el18a2k 10:e221bd1ce3ec 12
el18a2k 10:e221bd1ce3ec 13 //check if enemy fish if fully off screen
el18a2k 10:e221bd1ce3ec 14 if(X == -24){
el18a2k 10:e221bd1ce3ec 15 X = 85; //reset enemy fish position to 85
el18a2k 10:e221bd1ce3ec 16 Y = rand() % 36 + 9; //randomly generate Y position for enemy fish
el18a2k 10:e221bd1ce3ec 17 E_FISH = rand() % 4 + 1; //randomly select a new enemy fish
el18a2k 10:e221bd1ce3ec 18 }
el18a2k 10:e221bd1ce3ec 19
el18a2k 10:e221bd1ce3ec 20 fishPos(direction);
el18a2k 10:e221bd1ce3ec 21 drawFish(lcd);
el18a2k 10:e221bd1ce3ec 22 enemyFish(lcd);
el18a2k 10:e221bd1ce3ec 23 Collision();
el18a2k 10:e221bd1ce3ec 24 Score(lcd);
el18a2k 10:e221bd1ce3ec 25 Lives();
el18a2k 10:e221bd1ce3ec 26
el18a2k 10:e221bd1ce3ec 27 X--;
el18a2k 10:e221bd1ce3ec 28 lcd.refresh();
el18a2k 10:e221bd1ce3ec 29 wait_ms(1000/30);
el18a2k 10:e221bd1ce3ec 30 }
el18a2k 10:e221bd1ce3ec 31
el18a2k 10:e221bd1ce3ec 32 //initiates game. 20, 20, 1
el18a2k 10:e221bd1ce3ec 33 void Game::init(N5110 &lcd, int x, int y, int Fish_size){
el18a2k 10:e221bd1ce3ec 34 _x = x;
el18a2k 10:e221bd1ce3ec 35 _y = y;
el18a2k 10:e221bd1ce3ec 36 X = 85;
el18a2k 10:e221bd1ce3ec 37 Y = 20;
el18a2k 10:e221bd1ce3ec 38 FISH_SIZE = Fish_size;
el18a2k 10:e221bd1ce3ec 39 E_FISH = 1;
el18a2k 10:e221bd1ce3ec 40 SCORE = 0;
el18a2k 10:e221bd1ce3ec 41 check_score = 0;
el18a2k 10:e221bd1ce3ec 42 rect_width = 0;
el18a2k 10:e221bd1ce3ec 43 barIncrement = 0;
el18a2k 10:e221bd1ce3ec 44 check_width = 0;
el18a2k 10:e221bd1ce3ec 45 lives = 3;
el18a2k 10:e221bd1ce3ec 46 _shift.write(0x4F); //initiate lives
el18a2k 10:e221bd1ce3ec 47
el18a2k 10:e221bd1ce3ec 48 //draw fish
el18a2k 10:e221bd1ce3ec 49 drawFish(lcd);
el18a2k 10:e221bd1ce3ec 50 }
el18a2k 10:e221bd1ce3ec 51
el18a2k 10:e221bd1ce3ec 52 //draws player fish
el18a2k 10:e221bd1ce3ec 53 void Game::drawFish(N5110 &lcd){
el18a2k 10:e221bd1ce3ec 54
el18a2k 10:e221bd1ce3ec 55 if (FISH_SIZE == 1){
el18a2k 10:e221bd1ce3ec 56 //draw first fish
el18a2k 10:e221bd1ce3ec 57 _graphics.Fish_1(lcd, _x, _y);
el18a2k 10:e221bd1ce3ec 58 FISH_HEIGHT = 4;
el18a2k 10:e221bd1ce3ec 59 FISH_WIDTH = 9;
el18a2k 10:e221bd1ce3ec 60 CENTRE_X = _x + (FISH_WIDTH/2);
el18a2k 10:e221bd1ce3ec 61 CENTRE_Y = _y + (FISH_HEIGHT/2);
el18a2k 10:e221bd1ce3ec 62
el18a2k 10:e221bd1ce3ec 63 }else if(FISH_SIZE == 2){
el18a2k 10:e221bd1ce3ec 64 //draw second fish
el18a2k 10:e221bd1ce3ec 65 _graphics.Fish_2(lcd, _x, _y);
el18a2k 10:e221bd1ce3ec 66 FISH_HEIGHT = 6;
el18a2k 10:e221bd1ce3ec 67 FISH_WIDTH = 14;
el18a2k 10:e221bd1ce3ec 68 CENTRE_X = _x + (FISH_WIDTH/2);
el18a2k 10:e221bd1ce3ec 69 CENTRE_Y = _y + (FISH_HEIGHT/2);
el18a2k 10:e221bd1ce3ec 70
el18a2k 10:e221bd1ce3ec 71 }else if(FISH_SIZE == 3){
el18a2k 10:e221bd1ce3ec 72 //draw third fish
el18a2k 10:e221bd1ce3ec 73 _graphics.Fish_3(lcd, _x, _y);
el18a2k 10:e221bd1ce3ec 74 FISH_HEIGHT = 8;
el18a2k 10:e221bd1ce3ec 75 FISH_WIDTH = 17;
el18a2k 10:e221bd1ce3ec 76 CENTRE_X = _x + (FISH_WIDTH/2);
el18a2k 10:e221bd1ce3ec 77 CENTRE_Y = _y + (FISH_HEIGHT/2);
el18a2k 10:e221bd1ce3ec 78
el18a2k 10:e221bd1ce3ec 79 }else if(FISH_SIZE == 4){
el18a2k 10:e221bd1ce3ec 80 //draw final fish
el18a2k 10:e221bd1ce3ec 81 _graphics.Fish_4(lcd, _x, _y);
el18a2k 10:e221bd1ce3ec 82 FISH_HEIGHT = 12;
el18a2k 10:e221bd1ce3ec 83 FISH_WIDTH = 23;
el18a2k 10:e221bd1ce3ec 84 CENTRE_X = _x + (FISH_WIDTH/2);
el18a2k 10:e221bd1ce3ec 85 CENTRE_Y = _y + (FISH_HEIGHT/2);
el18a2k 10:e221bd1ce3ec 86 }
el18a2k 10:e221bd1ce3ec 87 }
el18a2k 10:e221bd1ce3ec 88
el18a2k 10:e221bd1ce3ec 89 //updates fish position
el18a2k 10:e221bd1ce3ec 90 void Game::fishPos(DIRECTION direction){
el18a2k 10:e221bd1ce3ec 91
el18a2k 10:e221bd1ce3ec 92 //takes the joystick input and alters the value and x & y accordingly
el18a2k 10:e221bd1ce3ec 93 if(direction.joy == N){
el18a2k 10:e221bd1ce3ec 94 _y--;
el18a2k 10:e221bd1ce3ec 95 }else if(direction.joy == S){
el18a2k 10:e221bd1ce3ec 96 _y++;
el18a2k 10:e221bd1ce3ec 97 }else if(direction.joy == E){
el18a2k 10:e221bd1ce3ec 98 _x++;
el18a2k 10:e221bd1ce3ec 99 }else if(direction.joy == W){
el18a2k 10:e221bd1ce3ec 100 _x--;
el18a2k 10:e221bd1ce3ec 101 }else if(direction.joy == NE){
el18a2k 10:e221bd1ce3ec 102 _y--;
el18a2k 10:e221bd1ce3ec 103 _x++;
el18a2k 10:e221bd1ce3ec 104 }else if(direction.joy == NW){
el18a2k 10:e221bd1ce3ec 105 _y--;
el18a2k 10:e221bd1ce3ec 106 _x--;
el18a2k 10:e221bd1ce3ec 107 }else if(direction.joy == SE){
el18a2k 10:e221bd1ce3ec 108 _y++;
el18a2k 10:e221bd1ce3ec 109 _x++;
el18a2k 10:e221bd1ce3ec 110 }else if(direction.joy == SW){
el18a2k 10:e221bd1ce3ec 111 _y++;
el18a2k 10:e221bd1ce3ec 112 _x--;
el18a2k 10:e221bd1ce3ec 113 }else if(direction.joy == CENTRE){
el18a2k 10:e221bd1ce3ec 114 _x = _x;
el18a2k 10:e221bd1ce3ec 115 _y = _y;
el18a2k 10:e221bd1ce3ec 116 }
el18a2k 10:e221bd1ce3ec 117
el18a2k 10:e221bd1ce3ec 118 //creates the upper x and y boundaries
el18a2k 10:e221bd1ce3ec 119 x_bound = _x + FISH_WIDTH;
el18a2k 10:e221bd1ce3ec 120 y_bound = _y + FISH_HEIGHT;
el18a2k 10:e221bd1ce3ec 121
el18a2k 10:e221bd1ce3ec 122 //check play position agains the boundaries of the playing area
el18a2k 10:e221bd1ce3ec 123 if(_x <= 1){
el18a2k 10:e221bd1ce3ec 124 _x = 1;
el18a2k 10:e221bd1ce3ec 125 }else if (x_bound >= 82){
el18a2k 10:e221bd1ce3ec 126 _x = 82 - FISH_WIDTH;
el18a2k 10:e221bd1ce3ec 127 }else if (_y <= 9){
el18a2k 10:e221bd1ce3ec 128 _y = 9;
el18a2k 10:e221bd1ce3ec 129 }else if (y_bound >= 47){
el18a2k 10:e221bd1ce3ec 130 _y = 47 - FISH_HEIGHT;
el18a2k 10:e221bd1ce3ec 131 }
el18a2k 10:e221bd1ce3ec 132 }
el18a2k 10:e221bd1ce3ec 133
el18a2k 10:e221bd1ce3ec 134 //Keeps score
el18a2k 10:e221bd1ce3ec 135 int Game::Score(N5110 &lcd){
el18a2k 10:e221bd1ce3ec 136 //print score to screen
el18a2k 10:e221bd1ce3ec 137 s_length = sprintf(_score,"%2d",SCORE);
el18a2k 10:e221bd1ce3ec 138 lcd.printString(_score,54,0);
el18a2k 10:e221bd1ce3ec 139
el18a2k 10:e221bd1ce3ec 140 //score limits to grow fish
el18a2k 10:e221bd1ce3ec 141 if (SCORE < 100){
el18a2k 10:e221bd1ce3ec 142 FISH_SIZE = 1; //smallest fish
el18a2k 10:e221bd1ce3ec 143 barIncrement = 4; //increments the width of the growth bar by 4 pixels
el18a2k 10:e221bd1ce3ec 144 }else if(SCORE >= 100 && SCORE < 300){
el18a2k 10:e221bd1ce3ec 145 FISH_SIZE = 2; //fish 2
el18a2k 10:e221bd1ce3ec 146 barIncrement = 2;
el18a2k 10:e221bd1ce3ec 147 }else if (SCORE >= 300 && SCORE <= 700){
el18a2k 10:e221bd1ce3ec 148 FISH_SIZE = 3; //fish 3
el18a2k 10:e221bd1ce3ec 149 barIncrement = 1;
el18a2k 10:e221bd1ce3ec 150 }else if (SCORE >= 700){
el18a2k 10:e221bd1ce3ec 151 FISH_SIZE = 4; //largest fish
el18a2k 10:e221bd1ce3ec 152 barIncrement = 0;
el18a2k 10:e221bd1ce3ec 153 }
el18a2k 10:e221bd1ce3ec 154
el18a2k 10:e221bd1ce3ec 155 //increases the growth bar width each time a the score increases
el18a2k 10:e221bd1ce3ec 156 if(check_score != SCORE){
el18a2k 10:e221bd1ce3ec 157 if(FISH_SIZE == 1){
el18a2k 10:e221bd1ce3ec 158 rect_width = rect_width + 4;
el18a2k 10:e221bd1ce3ec 159 }else if(FISH_SIZE == 2){
el18a2k 10:e221bd1ce3ec 160 rect_width = rect_width + 2;
el18a2k 10:e221bd1ce3ec 161 }else if(FISH_SIZE == 3){
el18a2k 10:e221bd1ce3ec 162 rect_width = rect_width + 1;
el18a2k 10:e221bd1ce3ec 163 }else if(FISH_SIZE == 4){
el18a2k 10:e221bd1ce3ec 164 rect_width = 40;
el18a2k 10:e221bd1ce3ec 165 }
el18a2k 10:e221bd1ce3ec 166
el18a2k 10:e221bd1ce3ec 167 check_score = SCORE;
el18a2k 10:e221bd1ce3ec 168 }
el18a2k 10:e221bd1ce3ec 169
el18a2k 10:e221bd1ce3ec 170 //check for change in bar increment if true reset the width of the growth bar
el18a2k 10:e221bd1ce3ec 171 if(check_width != barIncrement){
el18a2k 10:e221bd1ce3ec 172 if(FISH_SIZE == 4){ //if largest fish than growth bar is max
el18a2k 10:e221bd1ce3ec 173 rect_width = 40;
el18a2k 10:e221bd1ce3ec 174 }else{
el18a2k 10:e221bd1ce3ec 175 rect_width = 0;
el18a2k 10:e221bd1ce3ec 176 }
el18a2k 10:e221bd1ce3ec 177 check_width = barIncrement; //set new check width to new bar increment
el18a2k 10:e221bd1ce3ec 178 }
el18a2k 10:e221bd1ce3ec 179
el18a2k 10:e221bd1ce3ec 180 return SCORE;
el18a2k 10:e221bd1ce3ec 181 }
el18a2k 10:e221bd1ce3ec 182
el18a2k 10:e221bd1ce3ec 183 //keeps track of lives
el18a2k 10:e221bd1ce3ec 184 int Game::Lives(){
el18a2k 10:e221bd1ce3ec 185 if (lives == 3){
el18a2k 10:e221bd1ce3ec 186 _shift.write(0x4F); //write 3
el18a2k 10:e221bd1ce3ec 187 }else if (lives == 2){
el18a2k 10:e221bd1ce3ec 188 _shift.write(0x5B); //write 2
el18a2k 10:e221bd1ce3ec 189 }else if (lives == 1){
el18a2k 10:e221bd1ce3ec 190 _shift.write(0x06); //write 1
el18a2k 10:e221bd1ce3ec 191 }else if (lives == 0){
el18a2k 10:e221bd1ce3ec 192 _shift.write(0x3F); //write 0
el18a2k 10:e221bd1ce3ec 193 }
el18a2k 10:e221bd1ce3ec 194 return lives;
el18a2k 10:e221bd1ce3ec 195 }
el18a2k 10:e221bd1ce3ec 196
el18a2k 10:e221bd1ce3ec 197 //checks for collision with other fish
el18a2k 10:e221bd1ce3ec 198 int Game::Collision(){
el18a2k 10:e221bd1ce3ec 199 centre_xpos = E_CENTRE_X - CENTRE_X;
el18a2k 10:e221bd1ce3ec 200 centre_ypos = E_CENTRE_Y - CENTRE_Y;
el18a2k 10:e221bd1ce3ec 201
el18a2k 10:e221bd1ce3ec 202 if((centre_xpos == 2 && centre_ypos <= 1) && (centre_xpos == 2 && centre_ypos >= -1)){
el18a2k 10:e221bd1ce3ec 203 if(FISH_SIZE < E_FISH){
el18a2k 10:e221bd1ce3ec 204 //remove one life
el18a2k 10:e221bd1ce3ec 205 lives--;
el18a2k 10:e221bd1ce3ec 206 }else if(FISH_SIZE >= E_FISH){
el18a2k 10:e221bd1ce3ec 207 //increase score by 10
el18a2k 10:e221bd1ce3ec 208 SCORE = SCORE + 10;
el18a2k 10:e221bd1ce3ec 209 //remove eaten fish
el18a2k 10:e221bd1ce3ec 210 X = -23;
el18a2k 10:e221bd1ce3ec 211 }
el18a2k 10:e221bd1ce3ec 212
el18a2k 10:e221bd1ce3ec 213 collision = 1;
el18a2k 10:e221bd1ce3ec 214 }else{
el18a2k 10:e221bd1ce3ec 215 collision = 0;
el18a2k 10:e221bd1ce3ec 216 }
el18a2k 10:e221bd1ce3ec 217 return collision;
el18a2k 10:e221bd1ce3ec 218 }
el18a2k 10:e221bd1ce3ec 219
el18a2k 10:e221bd1ce3ec 220 //generates enemy fish
el18a2k 10:e221bd1ce3ec 221 void Game::enemyFish(N5110 &lcd){
el18a2k 10:e221bd1ce3ec 222 if (E_FISH == 1){
el18a2k 10:e221bd1ce3ec 223 //draw first fish
el18a2k 10:e221bd1ce3ec 224 _graphics.E_Fish_1(lcd, X, Y);
el18a2k 10:e221bd1ce3ec 225 E_FISH_HEIGHT = 4;
el18a2k 10:e221bd1ce3ec 226 E_FISH_WIDTH = 9;
el18a2k 10:e221bd1ce3ec 227 E_CENTRE_X = X + (E_FISH_WIDTH/2);
el18a2k 10:e221bd1ce3ec 228 E_CENTRE_Y = Y + (E_FISH_HEIGHT/2);
el18a2k 10:e221bd1ce3ec 229
el18a2k 10:e221bd1ce3ec 230 }else if(E_FISH == 2){
el18a2k 10:e221bd1ce3ec 231 //draw second fish
el18a2k 10:e221bd1ce3ec 232 _graphics.E_Fish_2(lcd, X, Y);
el18a2k 10:e221bd1ce3ec 233 E_FISH_HEIGHT = 6;
el18a2k 10:e221bd1ce3ec 234 E_FISH_WIDTH = 14;
el18a2k 10:e221bd1ce3ec 235 E_CENTRE_X = X + (E_FISH_WIDTH/2);
el18a2k 10:e221bd1ce3ec 236 E_CENTRE_Y = Y + (E_FISH_HEIGHT/2);
el18a2k 10:e221bd1ce3ec 237
el18a2k 10:e221bd1ce3ec 238 }else if(E_FISH == 3){
el18a2k 10:e221bd1ce3ec 239 //draw third fish
el18a2k 10:e221bd1ce3ec 240 _graphics.E_Fish_3(lcd, X, Y);
el18a2k 10:e221bd1ce3ec 241 E_FISH_HEIGHT = 8;
el18a2k 10:e221bd1ce3ec 242 E_FISH_WIDTH = 17;
el18a2k 10:e221bd1ce3ec 243 E_CENTRE_X = X + (E_FISH_WIDTH/2);
el18a2k 10:e221bd1ce3ec 244 E_CENTRE_Y = Y + (E_FISH_HEIGHT/2);
el18a2k 10:e221bd1ce3ec 245
el18a2k 10:e221bd1ce3ec 246 }else if(E_FISH == 4){
el18a2k 10:e221bd1ce3ec 247 //draw final fish
el18a2k 10:e221bd1ce3ec 248 _graphics.E_Fish_4(lcd, X, Y);
el18a2k 10:e221bd1ce3ec 249 E_FISH_HEIGHT = 12;
el18a2k 10:e221bd1ce3ec 250 E_FISH_WIDTH = 23;
el18a2k 10:e221bd1ce3ec 251 E_CENTRE_X = X + (E_FISH_WIDTH/2);
el18a2k 10:e221bd1ce3ec 252 E_CENTRE_Y = Y + (E_FISH_HEIGHT/2);
el18a2k 10:e221bd1ce3ec 253 }
el18a2k 10:e221bd1ce3ec 254 }