ELEC2645 (2019/20) / Mbed 2 deprecated ELEC2645_PROJECT_EL18KK

Kaif Kutchwala 201267448 ELEC2645 Project

Dependencies:   mbed

Game/Game.cpp@17:2fbe40177b9c, 2020-05-22 (annotated)

Committer:
KaifK
Date:
Fri May 22 01:46:19 2020 +0000
Revision:
17:2fbe40177b9c
Parent:
16:1f196a0e12be
Child:
20:c697902b844f
Refined Ball Shot animation, cleaned up code, updated and fixed level 7

Who changed what in which revision?

UserRevisionLine numberNew contents of line
KaifK 4:08a0ff6668df 1 #include "Game.h"
KaifK 8:5ede90f99a27 2
KaifK 9:e6566d09f087 3 Game::Game(N5110 &lcd, Gamepad &pad, Ball &ball) {
KaifK 9:e6566d09f087 4 _lcd = &lcd;
KaifK 9:e6566d09f087 5 _pad = &pad;
KaifK 9:e6566d09f087 6 _ball = &ball;
KaifK 9:e6566d09f087 7 }
KaifK 4:08a0ff6668df 8 Game::~Game() {}
KaifK 4:08a0ff6668df 9
KaifK 4:08a0ff6668df 10 void Game::init() {
KaifK 4:08a0ff6668df 11 _is_goal = false;
KaifK 8:5ede90f99a27 12 _lives = 3;
KaifK 16:1f196a0e12be 13 _new_lives_threshold = 0;
KaifK 12:ca7329a41fc5 14 _level = 1;
KaifK 8:5ede90f99a27 15 _score = 0;
KaifK 16:1f196a0e12be 16 _highscore = 0;
KaifK 9:e6566d09f087 17 _speed = 0.30f;
KaifK 16:1f196a0e12be 18 _new_speed_threshold = 0.00f;
KaifK 9:e6566d09f087 19 _x_val = 42.00f;
KaifK 9:e6566d09f087 20 _y_val = 0.00f;
KaifK 7:2a3b566aedd3 21 _shot_x = 0;
KaifK 7:2a3b566aedd3 22 _shot_y = 0;
KaifK 4:08a0ff6668df 23 }
KaifK 9:e6566d09f087 24 void Game::play() {
KaifK 16:1f196a0e12be 25 // if all live are lost game ends
KaifK 17:2fbe40177b9c 26 while(_lives > 0) {
KaifK 17:2fbe40177b9c 27 updateSpeed();
KaifK 17:2fbe40177b9c 28 updateLives();
KaifK 17:2fbe40177b9c 29 updateLevel();
KaifK 17:2fbe40177b9c 30 readInput();
KaifK 16:1f196a0e12be 31 if(_is_goal) {
KaifK 12:ca7329a41fc5 32 _score++;
KaifK 12:ca7329a41fc5 33 }
KaifK 15:5bf3f951d337 34 else {
KaifK 15:5bf3f951d337 35 // ball should not go through obstacle hence y value limited to 21
KaifK 15:5bf3f951d337 36 // this is done after calculations to ensure accurate results
KaifK 17:2fbe40177b9c 37 if(_shot_y >= 9) { _shot_y = 21; }
KaifK 15:5bf3f951d337 38 _lives--;
KaifK 15:5bf3f951d337 39 }
KaifK 16:1f196a0e12be 40 _ball->playShot(_shot_x, _shot_y);
KaifK 16:1f196a0e12be 41 print_goal_message((int)_is_goal);
KaifK 16:1f196a0e12be 42 if(_score > _highscore) { set_highscore(_score); }
KaifK 12:ca7329a41fc5 43 }
KaifK 16:1f196a0e12be 44 _pad->leds(0.0); //turn of all leds
KaifK 8:5ede90f99a27 45 }
KaifK 7:2a3b566aedd3 46
KaifK 9:e6566d09f087 47 void Game::readInput() {
KaifK 17:2fbe40177b9c 48 _pad->reset_buttons(); //forced debounce/reset
KaifK 9:e6566d09f087 49 _x_val = 42; //reset x_val
KaifK 9:e6566d09f087 50 _y_val = 0; //reset y_val
KaifK 9:e6566d09f087 51 while(!_pad->A_pressed()) {
KaifK 9:e6566d09f087 52 pointer_input();
KaifK 7:2a3b566aedd3 53 }
KaifK 17:2fbe40177b9c 54 _pad->reset_buttons(); //forced debounce/reset
KaifK 9:e6566d09f087 55 while(!_pad->B_pressed()) {
KaifK 9:e6566d09f087 56 power_meter_input();
KaifK 6:09a555c0d997 57 }
KaifK 8:5ede90f99a27 58 convert_to_shot_x();
KaifK 7:2a3b566aedd3 59 convert_to_shot_y();
KaifK 17:2fbe40177b9c 60 _is_goal = _ball->isGoal(_level, _shot_x, _shot_y);
KaifK 9:e6566d09f087 61 printf("x val = %.2f \n",_x_val);
KaifK 7:2a3b566aedd3 62 printf("shot_x val = %d \n",_shot_x);
KaifK 9:e6566d09f087 63 printf("y val = %.2f \n",_y_val);
KaifK 7:2a3b566aedd3 64 printf("shot_y val = %d \n",_shot_y);
KaifK 6:09a555c0d997 65 }
KaifK 9:e6566d09f087 66 void Game::updateLives() {
KaifK 17:2fbe40177b9c 67 int val [6] = {0,0,0,0,0,0};
KaifK 16:1f196a0e12be 68 // +1 life if score hits a multiple of 5 provided less than 3 lives left
KaifK 16:1f196a0e12be 69 //update threshold so lives don't increase if score stays same
KaifK 16:1f196a0e12be 70 if(_score % 5 == 0 && _score != _new_lives_threshold && _lives != 3) {
KaifK 16:1f196a0e12be 71 _lives++;
KaifK 16:1f196a0e12be 72 _new_lives_threshold = _score;
KaifK 16:1f196a0e12be 73 }
KaifK 16:1f196a0e12be 74 printf("Lives = %d \n", _lives);
KaifK 5:ed71996c0534 75 switch(_lives){
KaifK 14:652fd55aebcf 76 case 0:
KaifK 14:652fd55aebcf 77 break;
KaifK 17:2fbe40177b9c 78 case 1: //red leds only
KaifK 17:2fbe40177b9c 79 val[0] = val[3] = 1;
KaifK 5:ed71996c0534 80 break;
KaifK 17:2fbe40177b9c 81 case 2: //red and yellow leds
KaifK 17:2fbe40177b9c 82 val[0] = val[1] = val[3] = val[4] = 1;
KaifK 5:ed71996c0534 83 break;
KaifK 17:2fbe40177b9c 84 case 3: //all leds on
KaifK 17:2fbe40177b9c 85 for (int i = 0; i < 6; i++) {val[i] = 1;}
KaifK 5:ed71996c0534 86 break;
KaifK 5:ed71996c0534 87 default:
KaifK 7:2a3b566aedd3 88 error("Invalid Number of Lives");
KaifK 5:ed71996c0534 89 break;
KaifK 5:ed71996c0534 90 }
KaifK 17:2fbe40177b9c 91 updateLeds(val);
KaifK 5:ed71996c0534 92 }
KaifK 9:e6566d09f087 93 void Game::updateScore() {
KaifK 5:ed71996c0534 94 char buffer[12];
KaifK 5:ed71996c0534 95 sprintf(buffer,"%d",_score);
KaifK 9:e6566d09f087 96 _lcd->printString(buffer,2,5);
KaifK 9:e6566d09f087 97 }
KaifK 9:e6566d09f087 98 void Game::updateSpeed() {
KaifK 17:2fbe40177b9c 99 if(abs(_speed) <= 3) { // max speed = 3
KaifK 16:1f196a0e12be 100 if(_score % 3 == 0 && _score != _new_speed_threshold) {
KaifK 16:1f196a0e12be 101 _speed = abs(_speed) + 0.20f;
KaifK 16:1f196a0e12be 102 //update threshold so speed does not increase if score stays same
KaifK 16:1f196a0e12be 103 _new_speed_threshold = _score;
KaifK 9:e6566d09f087 104 }
KaifK 9:e6566d09f087 105 }
KaifK 9:e6566d09f087 106 printf("speed = %.2f \n", _speed);
KaifK 9:e6566d09f087 107 printf("score = %d \n", _score);
KaifK 5:ed71996c0534 108 }
KaifK 17:2fbe40177b9c 109 void Game::updateLevel() {
KaifK 17:2fbe40177b9c 110 _level = random_level_gen(10); //generate random level
KaifK 17:2fbe40177b9c 111 _ball->set_level(_level); //set level
KaifK 17:2fbe40177b9c 112 printf("Level (in game) = %d \n", _level);
KaifK 17:2fbe40177b9c 113 }
KaifK 17:2fbe40177b9c 114 void Game::updateLeds( int val[6]) {
KaifK 17:2fbe40177b9c 115 _pad->led(1,val[0]);
KaifK 17:2fbe40177b9c 116 _pad->led(2,val[1]);
KaifK 17:2fbe40177b9c 117 _pad->led(3,val[2]);
KaifK 17:2fbe40177b9c 118 _pad->led(4,val[3]);
KaifK 17:2fbe40177b9c 119 _pad->led(5,val[4]);
KaifK 17:2fbe40177b9c 120 _pad->led(6,val[5]);
KaifK 17:2fbe40177b9c 121 }
KaifK 16:1f196a0e12be 122 void Game::set_highscore (int score) {
KaifK 16:1f196a0e12be 123 _highscore = score;
KaifK 16:1f196a0e12be 124 }
KaifK 16:1f196a0e12be 125 int Game::get_highscore() {
KaifK 16:1f196a0e12be 126 int val = _highscore;
KaifK 16:1f196a0e12be 127 return val;
KaifK 16:1f196a0e12be 128 }
KaifK 9:e6566d09f087 129 void Game::pointer_input() {
KaifK 9:e6566d09f087 130 updateScore();
KaifK 12:ca7329a41fc5 131 _ball->displayBackground();
KaifK 9:e6566d09f087 132 _ball->init();
KaifK 7:2a3b566aedd3 133 //draw aim pointer
KaifK 9:e6566d09f087 134 _lcd->drawLine(WIDTH / 2 - 5, 41, _x_val, HEIGHT / 2 + 7, 1);//left side
KaifK 9:e6566d09f087 135 _lcd->drawLine(WIDTH / 2 + 5, 41, _x_val, HEIGHT / 2 + 7, 1);//right side
KaifK 12:ca7329a41fc5 136 _lcd->drawLine(WIDTH / 2 + 5, 41, WIDTH / 2 - 5, 41, 1); //base
KaifK 7:2a3b566aedd3 137 _x_val += _speed;
KaifK 9:e6566d09f087 138 //printf("dir = %d \n", _speed);
KaifK 9:e6566d09f087 139 if((int)_x_val >= 70) { _speed = (-1 * _speed); }
KaifK 9:e6566d09f087 140 //pointer points out of screen i.e. 70=84 therefore, switch direction
KaifK 7:2a3b566aedd3 141 //value found through trial and error using print statement
KaifK 9:e6566d09f087 142 else if((int)_x_val <= 12) { _speed = abs(_speed); }
KaifK 9:e6566d09f087 143 _lcd->refresh();
KaifK 9:e6566d09f087 144 _lcd->clear();
KaifK 7:2a3b566aedd3 145 wait(0.01);
KaifK 7:2a3b566aedd3 146 }
KaifK 9:e6566d09f087 147 void Game::power_meter_input() {
KaifK 9:e6566d09f087 148 updateScore();
KaifK 12:ca7329a41fc5 149 _ball->displayBackground();
KaifK 12:ca7329a41fc5 150 _ball->init();
KaifK 7:2a3b566aedd3 151 //keep direction of pointer
KaifK 9:e6566d09f087 152 _lcd->drawLine(WIDTH / 2 - 5, 41, _x_val, HEIGHT / 2 + 7, 1);
KaifK 9:e6566d09f087 153 _lcd->drawLine(WIDTH / 2 + 5, 41, _x_val, HEIGHT / 2 + 7, 1);
KaifK 12:ca7329a41fc5 154 _lcd->drawLine(WIDTH / 2 + 5, 41, WIDTH / 2 - 5, 41, 1);
KaifK 7:2a3b566aedd3 155 //fill and empty power meter
KaifK 9:e6566d09f087 156 _lcd->drawRect(77,27,6,_y_val,FILL_BLACK);
KaifK 9:e6566d09f087 157 _y_val += _speed/2;
KaifK 9:e6566d09f087 158 if((int)_y_val >= 20) { _speed = (-1 * _speed); } //power meter full
KaifK 9:e6566d09f087 159 else if((int)_y_val <= 0) { _speed = abs(_speed); } // power meter empty
KaifK 9:e6566d09f087 160 _lcd->refresh();
KaifK 9:e6566d09f087 161 _lcd->clear();
KaifK 7:2a3b566aedd3 162 wait(0.01);
KaifK 7:2a3b566aedd3 163 }
KaifK 7:2a3b566aedd3 164 void Game::convert_to_shot_x() {
KaifK 9:e6566d09f087 165 //convert from range 12-70 (range of pointer) to 0-84 (range of screen)
KaifK 9:e6566d09f087 166 _shot_x = ((((int)_x_val - 12) * (84)) / (70 - 12));
KaifK 8:5ede90f99a27 167 //ball misses goal completely
KaifK 17:2fbe40177b9c 168 if(_shot_x <=7) { _shot_x = 0;}
KaifK 17:2fbe40177b9c 169 else if(_shot_x >=77) { _shot_x = 84;}
KaifK 7:2a3b566aedd3 170 }
KaifK 7:2a3b566aedd3 171 void Game::convert_to_shot_y() {
KaifK 9:e6566d09f087 172 _shot_y = ((((int)_y_val) * (24)) / (20));
KaifK 17:2fbe40177b9c 173 if (_shot_y >= 19) {_shot_y = 19; }//shot is low, but must enter goal
KaifK 9:e6566d09f087 174 }
KaifK 9:e6566d09f087 175 int Game::random_level_gen(int limit) {
KaifK 15:5bf3f951d337 176 int number = (rand() % limit) + 1; //random level between 1-10
KaifK 15:5bf3f951d337 177 return number;
KaifK 15:5bf3f951d337 178 }
KaifK 15:5bf3f951d337 179 void Game::print_goal_message(int n) {
KaifK 15:5bf3f951d337 180 _ball->displayBackground();
KaifK 15:5bf3f951d337 181 _lcd->drawRect(0,14,84,11,FILL_WHITE);//white background
KaifK 17:2fbe40177b9c 182 _lcd->drawRect(0,14,84,11,FILL_TRANSPARENT);//black outline
KaifK 15:5bf3f951d337 183
KaifK 15:5bf3f951d337 184 switch(n) {
KaifK 15:5bf3f951d337 185 case 0:
KaifK 15:5bf3f951d337 186 _lcd->printString("MISS!",30,2);
KaifK 15:5bf3f951d337 187 break;
KaifK 15:5bf3f951d337 188 case 1:
KaifK 15:5bf3f951d337 189 _lcd->printString("GOAL!",30,2);
KaifK 15:5bf3f951d337 190 break;
KaifK 15:5bf3f951d337 191 }
KaifK 15:5bf3f951d337 192 _lcd->refresh();
KaifK 15:5bf3f951d337 193 wait(1.5);
KaifK 7:2a3b566aedd3 194 }
KaifK 7:2a3b566aedd3 195
KaifK 8:5ede90f99a27 196