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Dependencies:   mbed

GameEngine/GameEngine.cpp@49:ed569eceeaa4, 2020-05-19 (annotated)

Committer:
evanso
Date:
Tue May 19 15:32:00 2020 +0000
Revision:
49:ed569eceeaa4
Parent:
47:49fa1adc10b4
Child:
51:35cb8e604b72
Created saved games class

Who changed what in which revision?

UserRevisionLine numberNew contents of line
evanso 8:dd1037c5435b 1 #include "GameEngine.h"
evanso 47:49fa1adc10b4 2
evanso 47:49fa1adc10b4 3 /** Define acelleromter object */
evanso 47:49fa1adc10b4 4 FXOS8700CQ accelerometer(I2C_SDA,I2C_SCL);
evanso 8:dd1037c5435b 5
evanso 49:ed569eceeaa4 6 /** Define SD card object */
evanso 49:ed569eceeaa4 7 SDFileSystem sd(PTE3, PTE1, PTE2, PTE4, "sd");
evanso 49:ed569eceeaa4 8
evanso 8:dd1037c5435b 9 GameEngine::GameEngine() {
evanso 44:2d957de3bce3 10 //attach ticker to isr
evanso 42:3aed75338272 11 ticker.attach(callback(this, &GameEngine::lcd_frame_time_isr), 0.04 );
evanso 8:dd1037c5435b 12 }
evanso 8:dd1037c5435b 13
evanso 8:dd1037c5435b 14 GameEngine::~GameEngine() {
evanso 8:dd1037c5435b 15
evanso 8:dd1037c5435b 16 }
evanso 8:dd1037c5435b 17
evanso 13:12276eed13ac 18 void GameEngine::init() {
evanso 36:27aa597db3d2 19 // Initalise objects
evanso 8:dd1037c5435b 20 pad.init();
evanso 8:dd1037c5435b 21 lcd.init();
evanso 8:dd1037c5435b 22 spaceship.init();
evanso 13:12276eed13ac 23 map.init(pad);
evanso 40:71f947254fda 24 menu.init();
evanso 47:49fa1adc10b4 25 accelerometer.init();
evanso 36:27aa597db3d2 26
evanso 36:27aa597db3d2 27 // Set seed value
evanso 36:27aa597db3d2 28 srand(pad.read_adc()*64000);
evanso 36:27aa597db3d2 29
evanso 36:27aa597db3d2 30 // Assign values to variables
evanso 45:fc3238cd28c6 31 spawn_time_multipler_ = 1;
evanso 45:fc3238cd28c6 32 alien_number_counter_ = 3;
evanso 45:fc3238cd28c6 33 spawn_alien_counter_ = 0;
evanso 45:fc3238cd28c6 34 spaceship_lives_ = 3;
evanso 45:fc3238cd28c6 35 spaceship_destroyed_ = false;
evanso 45:fc3238cd28c6 36 reset_map_counter_ = 0;
evanso 45:fc3238cd28c6 37 smart_bomb_counter_ = 4;
evanso 33:7fedd8029473 38 create_people();
evanso 45:fc3238cd28c6 39 points_ = 0;
evanso 45:fc3238cd28c6 40 smart_bomb_timer_ = 0;
evanso 45:fc3238cd28c6 41 bullet_timer_ = 0;
evanso 41:5959256f4aab 42 current_menu_part_= menu.get_current_menu_part();
evanso 45:fc3238cd28c6 43 lcd_frame_time_flag_ = 0;
evanso 8:dd1037c5435b 44 }
evanso 8:dd1037c5435b 45
evanso 44:2d957de3bce3 46 // Menu Control-----------------------------------------------------------------
evanso 44:2d957de3bce3 47
evanso 44:2d957de3bce3 48 void GameEngine::game_select_part(){
evanso 44:2d957de3bce3 49 switch (current_menu_part_) {
evanso 44:2d957de3bce3 50 case main_menu: run_menu(); break;
evanso 44:2d957de3bce3 51 case play: run_play(); break;
evanso 44:2d957de3bce3 52 case settings: run_settings(); break;
evanso 44:2d957de3bce3 53 case saved_games: run_saved_games(); break;
evanso 44:2d957de3bce3 54 }
evanso 44:2d957de3bce3 55 }
evanso 44:2d957de3bce3 56
evanso 44:2d957de3bce3 57 void GameEngine::run_menu(){
evanso 44:2d957de3bce3 58 lcd.setContrast(pad.read_pot1());
evanso 44:2d957de3bce3 59 lcd.clear();
evanso 44:2d957de3bce3 60
evanso 44:2d957de3bce3 61 // Scrolls, draws and selcts menu parts
evanso 44:2d957de3bce3 62 read_joystick_direction();
evanso 44:2d957de3bce3 63 menu.menu_scroll(pad, d_);
evanso 44:2d957de3bce3 64 menu.draw_part(lcd);
evanso 44:2d957de3bce3 65 menu.select_part(lcd, pad);
evanso 44:2d957de3bce3 66
evanso 44:2d957de3bce3 67 current_menu_part_ = menu.get_current_menu_part();
evanso 44:2d957de3bce3 68
evanso 44:2d957de3bce3 69 lcd.refresh();
evanso 44:2d957de3bce3 70 }
evanso 44:2d957de3bce3 71
evanso 44:2d957de3bce3 72 void GameEngine::run_play(){
evanso 44:2d957de3bce3 73 while (1) {
evanso 44:2d957de3bce3 74 // Checks flag and prints spaceship on lcd then resets flag
evanso 45:fc3238cd28c6 75 if (lcd_frame_time_flag_) {
evanso 44:2d957de3bce3 76 // resets ISR flag
evanso 45:fc3238cd28c6 77 lcd_frame_time_flag_ = 0;
evanso 44:2d957de3bce3 78
evanso 44:2d957de3bce3 79 gameplay_loop();
evanso 44:2d957de3bce3 80
evanso 44:2d957de3bce3 81 // break out of game loop when lives = 0
evanso 45:fc3238cd28c6 82 if(!spaceship_lives_){
evanso 44:2d957de3bce3 83 break;
evanso 44:2d957de3bce3 84
evanso 44:2d957de3bce3 85 }
evanso 44:2d957de3bce3 86 }
evanso 44:2d957de3bce3 87
evanso 44:2d957de3bce3 88 // MCU put to sleep between each frame to save power
evanso 44:2d957de3bce3 89 sleep();
evanso 44:2d957de3bce3 90 }
evanso 44:2d957de3bce3 91 lcd.clear();
evanso 44:2d957de3bce3 92 lcd.printString("Game Over",15,3);
evanso 44:2d957de3bce3 93 lcd.refresh();
evanso 44:2d957de3bce3 94 wait(3);
evanso 44:2d957de3bce3 95 current_menu_part_ = main_menu;
evanso 44:2d957de3bce3 96 }
evanso 44:2d957de3bce3 97
evanso 13:12276eed13ac 98 void GameEngine::gameplay_loop() {
evanso 41:5959256f4aab 99
evanso 30:814674b189f0 100 // clear screen and set contrast
evanso 13:12276eed13ac 101 lcd.setContrast(pad.read_pot1());
evanso 8:dd1037c5435b 102 lcd.clear();
evanso 11:ab578a151f67 103
evanso 41:5959256f4aab 104 // creat objects
evanso 41:5959256f4aab 105 spawn_aliens();
evanso 41:5959256f4aab 106 spawn_people();
evanso 41:5959256f4aab 107
evanso 41:5959256f4aab 108 //If spaceship is destroyed stop joystick input, dont draw spaceship sprite
evanso 45:fc3238cd28c6 109 if (!spaceship_destroyed_){
evanso 47:49fa1adc10b4 110 //read_joystick_direction();
evanso 47:49fa1adc10b4 111 read_accelerometer_direction();
evanso 41:5959256f4aab 112 spaceship.movement(d_);
evanso 41:5959256f4aab 113 spaceship.draw(lcd);
evanso 47:49fa1adc10b4 114 create_weapons_bullets();
evanso 47:49fa1adc10b4 115 create_weapons_smart_bomb();
evanso 41:5959256f4aab 116 }
evanso 41:5959256f4aab 117
evanso 41:5959256f4aab 118 // Draws objects
evanso 41:5959256f4aab 119 map.draw_map(lcd, d_);
evanso 41:5959256f4aab 120 draw_aliens();
evanso 41:5959256f4aab 121 draw_bullets();
evanso 41:5959256f4aab 122 draw_explosions();
evanso 41:5959256f4aab 123 draw_people();
evanso 45:fc3238cd28c6 124 hud.draw_HUD(lcd, spaceship_lives_, points_, smart_bomb_counter_);
evanso 41:5959256f4aab 125 spaceship_lives_leds();
evanso 41:5959256f4aab 126
evanso 41:5959256f4aab 127 reset_map_timer();
evanso 30:814674b189f0 128
evanso 18:11068b98e261 129 // refresh's screen
evanso 18:11068b98e261 130 lcd.refresh();
evanso 13:12276eed13ac 131 }
evanso 13:12276eed13ac 132
evanso 41:5959256f4aab 133 void GameEngine::run_settings(){
evanso 41:5959256f4aab 134
evanso 41:5959256f4aab 135 }
evanso 41:5959256f4aab 136
evanso 41:5959256f4aab 137 void GameEngine::run_saved_games(){
evanso 41:5959256f4aab 138
evanso 41:5959256f4aab 139 }
evanso 41:5959256f4aab 140
evanso 42:3aed75338272 141 void GameEngine::lcd_frame_time_isr(){
evanso 42:3aed75338272 142 // set ISR flag
evanso 45:fc3238cd28c6 143 lcd_frame_time_flag_ = 1;
evanso 42:3aed75338272 144 }
evanso 42:3aed75338272 145
evanso 44:2d957de3bce3 146
evanso 44:2d957de3bce3 147
evanso 39:fc5586b930e3 148 //Spaceship control ------------------------------------------------------------
evanso 39:fc5586b930e3 149
evanso 15:90b6821bcf64 150 void GameEngine::read_joystick_direction(){
evanso 13:12276eed13ac 151 d_ = pad.get_direction();
evanso 18:11068b98e261 152 }
evanso 18:11068b98e261 153
evanso 47:49fa1adc10b4 154 void GameEngine::read_accelerometer_direction(){
evanso 47:49fa1adc10b4 155 float roll = accelerometer.get_roll_angle();
evanso 47:49fa1adc10b4 156 float pitch = accelerometer.get_pitch_angle();
evanso 47:49fa1adc10b4 157 // printf("Pitch = %f Roll = %f\n", pitch, roll);
evanso 47:49fa1adc10b4 158
evanso 47:49fa1adc10b4 159 //north
evanso 47:49fa1adc10b4 160 if(pitch >= -35){
evanso 47:49fa1adc10b4 161 if(roll >= 10){
evanso 47:49fa1adc10b4 162 d_ = NE;
evanso 47:49fa1adc10b4 163 }else if (roll <= -10){
evanso 47:49fa1adc10b4 164 d_ = NW;
evanso 47:49fa1adc10b4 165 }else {
evanso 47:49fa1adc10b4 166 d_ = N;
evanso 47:49fa1adc10b4 167 }
evanso 47:49fa1adc10b4 168 //south
evanso 47:49fa1adc10b4 169 }else if(pitch <= -55){
evanso 47:49fa1adc10b4 170 if (roll >= 10){
evanso 47:49fa1adc10b4 171 d_ = SE;
evanso 47:49fa1adc10b4 172 }else if(roll <= -10){
evanso 47:49fa1adc10b4 173 d_ = SW;
evanso 47:49fa1adc10b4 174 }else {
evanso 47:49fa1adc10b4 175 d_ = S;
evanso 47:49fa1adc10b4 176 }
evanso 47:49fa1adc10b4 177 // East/west
evanso 47:49fa1adc10b4 178 }else {
evanso 47:49fa1adc10b4 179 if (roll >= 10){
evanso 47:49fa1adc10b4 180 d_ = E;
evanso 47:49fa1adc10b4 181 }else if(roll <= -10){
evanso 47:49fa1adc10b4 182 d_ = W;
evanso 47:49fa1adc10b4 183 }else{
evanso 47:49fa1adc10b4 184 d_ = CENTRE;
evanso 47:49fa1adc10b4 185 }
evanso 47:49fa1adc10b4 186 }
evanso 47:49fa1adc10b4 187 }
evanso 47:49fa1adc10b4 188
evanso 39:fc5586b930e3 189 void GameEngine::spaceship_lives_leds(){
evanso 39:fc5586b930e3 190 pad.leds_off();
evanso 39:fc5586b930e3 191
evanso 39:fc5586b930e3 192 //top two red leds on if 1 lives left
evanso 45:fc3238cd28c6 193 if(spaceship_lives_ >= 1){
evanso 39:fc5586b930e3 194 pad.led(1,1);
evanso 39:fc5586b930e3 195 pad.led(4,1);
evanso 39:fc5586b930e3 196 }
evanso 39:fc5586b930e3 197
evanso 39:fc5586b930e3 198 //middle two orange leds also on if 2 lives left
evanso 45:fc3238cd28c6 199 if(spaceship_lives_ >= 2){
evanso 39:fc5586b930e3 200 pad.led(2,1);
evanso 39:fc5586b930e3 201 pad.led(5,1);
evanso 39:fc5586b930e3 202 }
evanso 39:fc5586b930e3 203
evanso 39:fc5586b930e3 204 //bottom two red leds also on if 3 lives left
evanso 45:fc3238cd28c6 205 if(spaceship_lives_ == 3){
evanso 39:fc5586b930e3 206 pad.led(3,1);
evanso 39:fc5586b930e3 207 pad.led(6,1);
evanso 39:fc5586b930e3 208 }
evanso 39:fc5586b930e3 209 }
evanso 39:fc5586b930e3 210
evanso 44:2d957de3bce3 211
evanso 44:2d957de3bce3 212
evanso 36:27aa597db3d2 213 //Weapon control ---------------------------------------------------------------
evanso 36:27aa597db3d2 214
evanso 36:27aa597db3d2 215 void GameEngine::create_weapons_bullets(){
evanso 39:fc5586b930e3 216 // controlls speed that bullet can be fired
evanso 45:fc3238cd28c6 217 if(bullet_timer_ <=0){
evanso 39:fc5586b930e3 218 if (pad.A_pressed()){
evanso 36:27aa597db3d2 219 // Bullet object
evanso 36:27aa597db3d2 220 Weapons new_bullet;
evanso 36:27aa597db3d2 221
evanso 36:27aa597db3d2 222 new_bullet.init(spaceship.get_pos(),
evanso 36:27aa597db3d2 223 spaceship.get_spaceship_sprite_direction(), true);
evanso 36:27aa597db3d2 224
evanso 36:27aa597db3d2 225 // Stores bullet object in vector
evanso 36:27aa597db3d2 226 bullet_vector.push_back(new_bullet);
evanso 39:fc5586b930e3 227 }
evanso 45:fc3238cd28c6 228 bullet_timer_ = 5;
evanso 39:fc5586b930e3 229 }
evanso 45:fc3238cd28c6 230 bullet_timer_--;
evanso 36:27aa597db3d2 231 }
evanso 36:27aa597db3d2 232
evanso 36:27aa597db3d2 233 void GameEngine::create_weapons_smart_bomb(){
evanso 39:fc5586b930e3 234 // timer to stop smart bomb button be accidently pressed twice
evanso 45:fc3238cd28c6 235 if(smart_bomb_timer_ <=0){
evanso 45:fc3238cd28c6 236 if (pad.B_pressed() && smart_bomb_counter_ > 0){
evanso 39:fc5586b930e3 237 weapons.smart_bomb(lcd);
evanso 45:fc3238cd28c6 238 smart_bomb_counter_--;
evanso 39:fc5586b930e3 239
evanso 39:fc5586b930e3 240 //Deletes alien object if on screen
evanso 39:fc5586b930e3 241 for (int i = (alien_vector.size() -1) ; i >= 0 ; i--){
evanso 39:fc5586b930e3 242 Vector2D alien_pos = alien_vector[i].get_pos();
evanso 36:27aa597db3d2 243
evanso 39:fc5586b930e3 244 // Creats explosion if alien was on the screen
evanso 39:fc5586b930e3 245 if(alien_pos.x <= 84 && alien_pos.x >= -6){
evanso 39:fc5586b930e3 246 create_explosion(alien_pos);
evanso 39:fc5586b930e3 247
evanso 39:fc5586b930e3 248 //delete person object if was being abducted by destroyed alien
evanso 39:fc5586b930e3 249 if(alien_vector[i].get_collision_people_element() > -1){
evanso 39:fc5586b930e3 250 people_vector.erase(people_vector.begin() +
evanso 39:fc5586b930e3 251 alien_vector[i].get_collision_people_element());
evanso 39:fc5586b930e3 252 }
evanso 39:fc5586b930e3 253
evanso 39:fc5586b930e3 254 alien_vector.erase(alien_vector.begin()+ i);
evanso 45:fc3238cd28c6 255 points_ ++;
evanso 39:fc5586b930e3 256 }
evanso 36:27aa597db3d2 257 }
evanso 45:fc3238cd28c6 258 smart_bomb_timer_ = 30;
evanso 39:fc5586b930e3 259 }
evanso 39:fc5586b930e3 260 }
evanso 45:fc3238cd28c6 261 smart_bomb_timer_--;
evanso 36:27aa597db3d2 262 }
evanso 36:27aa597db3d2 263
evanso 36:27aa597db3d2 264 void GameEngine::draw_bullets(){
evanso 36:27aa597db3d2 265 // interates over bullet vectors, moves and draws bullet objects
evanso 36:27aa597db3d2 266
evanso 36:27aa597db3d2 267 // Alien bullets
evanso 36:27aa597db3d2 268 for (int i = 0; i < alien_bullet_vector.size(); i++){
evanso 36:27aa597db3d2 269 alien_bullet_vector[i].draw_alien_bullet(lcd, d_);
evanso 36:27aa597db3d2 270
evanso 36:27aa597db3d2 271 // deletes alien bullet object after bullet has moved set distance
evanso 36:27aa597db3d2 272 if(alien_bullet_vector[i].get_bullet_delete_counter() >> 5){
evanso 36:27aa597db3d2 273 alien_bullet_vector.erase(alien_bullet_vector.begin()+ i);
evanso 36:27aa597db3d2 274 }
evanso 36:27aa597db3d2 275
evanso 36:27aa597db3d2 276 // Deletes bullet and shpaceship if collision detected
evanso 36:27aa597db3d2 277 if (spaceship.check_collision(alien_bullet_vector[i]) &&
evanso 45:fc3238cd28c6 278 !spaceship_destroyed_ ){
evanso 36:27aa597db3d2 279 create_explosion(spaceship.get_pos());
evanso 36:27aa597db3d2 280
evanso 45:fc3238cd28c6 281 spaceship_destroyed_ = true;
evanso 36:27aa597db3d2 282 alien_bullet_vector.erase(alien_bullet_vector.begin()+ i);
evanso 36:27aa597db3d2 283 }
evanso 36:27aa597db3d2 284 }
evanso 36:27aa597db3d2 285
evanso 36:27aa597db3d2 286 // Spaceship bullets
evanso 36:27aa597db3d2 287 for (int i = 0; i < bullet_vector.size(); i++){
evanso 36:27aa597db3d2 288 bullet_vector[i].draw_bullet(lcd);
evanso 36:27aa597db3d2 289
evanso 36:27aa597db3d2 290 // deletes bullet object after bullet has moved set distance
evanso 36:27aa597db3d2 291 if(bullet_vector[i].get_bullet_delete_counter() >> 5){
evanso 36:27aa597db3d2 292 bullet_vector.erase(bullet_vector.begin()+ i);
evanso 36:27aa597db3d2 293 }
evanso 36:27aa597db3d2 294 }
evanso 36:27aa597db3d2 295 }
evanso 36:27aa597db3d2 296
evanso 36:27aa597db3d2 297
evanso 36:27aa597db3d2 298
evanso 36:27aa597db3d2 299 //Alien Control ----------------------------------------------------------------
evanso 36:27aa597db3d2 300
evanso 32:c006a9882778 301 void GameEngine::spawn_aliens(){
evanso 45:fc3238cd28c6 302 if(alien_vector.size() <= alien_number_counter_){
evanso 34:85ccc16f24d2 303 create_alien();
evanso 32:c006a9882778 304 }
evanso 32:c006a9882778 305
evanso 45:fc3238cd28c6 306 //printf( " alien_number_counter_ = %d\n",alien_number_counter_);
evanso 45:fc3238cd28c6 307
evanso 34:85ccc16f24d2 308 //slowley incresing the alien counter as game goes on to make harder
evanso 45:fc3238cd28c6 309 if(spawn_alien_counter_%(500*spawn_time_multipler_) == 0){
evanso 45:fc3238cd28c6 310 alien_number_counter_++;
evanso 45:fc3238cd28c6 311 spawn_time_multipler_++;
evanso 32:c006a9882778 312 }
evanso 34:85ccc16f24d2 313
evanso 45:fc3238cd28c6 314 spawn_alien_counter_++;
evanso 32:c006a9882778 315 }
evanso 32:c006a9882778 316
evanso 36:27aa597db3d2 317 void GameEngine::create_alien(){
evanso 36:27aa597db3d2 318 int position_x_start = 0;
evanso 36:27aa597db3d2 319
evanso 36:27aa597db3d2 320 // Alien object
evanso 36:27aa597db3d2 321 Alien new_alien;
evanso 36:27aa597db3d2 322
evanso 36:27aa597db3d2 323 //spawns aliens between x > 84 and x <0
evanso 36:27aa597db3d2 324 if(rand() % 2){
evanso 36:27aa597db3d2 325 position_x_start = rand() % 84 + 84;
evanso 36:27aa597db3d2 326 }else{
evanso 36:27aa597db3d2 327 position_x_start =rand() % 83 - 84;
evanso 36:27aa597db3d2 328 }
evanso 39:fc5586b930e3 329 new_alien.init(pad, position_x_start, (rand() % 33 + 9));
evanso 36:27aa597db3d2 330
evanso 36:27aa597db3d2 331 // Stores alien object in vector
evanso 36:27aa597db3d2 332 alien_vector.push_back(new_alien);
evanso 36:27aa597db3d2 333 }
evanso 36:27aa597db3d2 334
evanso 36:27aa597db3d2 335 void GameEngine::check_alien_people_collision(int i){
evanso 40:71f947254fda 336 // only a collision if all three of theses conditions are met:
evanso 40:71f947254fda 337 // check all these codition for every alien to every person
evanso 40:71f947254fda 338 // 1)person hasn't already had a collision
evanso 40:71f947254fda 339 // 2)There is an acutaual collision of people and alien
evanso 36:27aa597db3d2 340 for (int x = 0; x < people_vector.size(); x++){
evanso 36:27aa597db3d2 341 if (!people_vector[x].get_alien_collision_flag() &&
evanso 36:27aa597db3d2 342 people_vector[x].check_alien_collision(alien_vector[i])){
evanso 36:27aa597db3d2 343 alien_vector[i].set_collision_people_element(x);
evanso 36:27aa597db3d2 344 }
evanso 36:27aa597db3d2 345 }
evanso 36:27aa597db3d2 346
evanso 36:27aa597db3d2 347 //draws collision if detected
evanso 36:27aa597db3d2 348 if(alien_vector[i].get_collision_people_element() > -1){
evanso 36:27aa597db3d2 349 alien_vector[i].draw_alien(lcd,spaceship.get_pos(),d_,
evanso 36:27aa597db3d2 350 map.get_length_map(), map.get_position_x_map(),true);
evanso 36:27aa597db3d2 351 }else{
evanso 36:27aa597db3d2 352 alien_vector[i].draw_alien(lcd,spaceship.get_pos(),d_,
evanso 36:27aa597db3d2 353 map.get_length_map(), map.get_position_x_map(),false);
evanso 36:27aa597db3d2 354 }
evanso 36:27aa597db3d2 355 }
evanso 36:27aa597db3d2 356
evanso 36:27aa597db3d2 357 void GameEngine::alliens_fire_bullets(int i){
evanso 36:27aa597db3d2 358 if (alien_vector[i].get_alien_fire_counter()%60 == 0){
evanso 36:27aa597db3d2 359 Weapons alien_bullet;
evanso 36:27aa597db3d2 360
evanso 36:27aa597db3d2 361 // fires bullet towards direction of spaceship
evanso 36:27aa597db3d2 362 bool alien_bullet_direction = false;
evanso 36:27aa597db3d2 363 Vector2D spaceship_pos = spaceship.get_pos();
evanso 36:27aa597db3d2 364 Vector2D alien_pos = alien_vector[i].get_pos();
evanso 36:27aa597db3d2 365 if(spaceship_pos.x > alien_pos.x){
evanso 36:27aa597db3d2 366 alien_bullet_direction = true;
evanso 36:27aa597db3d2 367 }
evanso 36:27aa597db3d2 368
evanso 36:27aa597db3d2 369 alien_bullet.init(alien_vector[i].get_pos(),
evanso 36:27aa597db3d2 370 alien_bullet_direction , false);
evanso 36:27aa597db3d2 371
evanso 36:27aa597db3d2 372 // Stores bullet object in vector
evanso 36:27aa597db3d2 373 alien_bullet_vector.push_back(alien_bullet);
evanso 36:27aa597db3d2 374 }
evanso 36:27aa597db3d2 375 }
evanso 36:27aa597db3d2 376
evanso 36:27aa597db3d2 377 void GameEngine::delete_aliens(int i){
evanso 36:27aa597db3d2 378 for (int x = 0; x < bullet_vector.size(); x++){
evanso 36:27aa597db3d2 379 if (alien_vector[i].check_collision(bullet_vector[x])){
evanso 36:27aa597db3d2 380 create_explosion(alien_vector[i].get_pos());
evanso 36:27aa597db3d2 381
evanso 36:27aa597db3d2 382 //delete person object if was carried by destroyed alien
evanso 36:27aa597db3d2 383 if(alien_vector[i].get_collision_people_element() > -1){
evanso 36:27aa597db3d2 384 people_vector.erase(people_vector.begin() +
evanso 36:27aa597db3d2 385 alien_vector[i].get_collision_people_element());
evanso 36:27aa597db3d2 386 }
evanso 36:27aa597db3d2 387
evanso 39:fc5586b930e3 388 bullet_vector.erase(bullet_vector.begin()+ x);
evanso 39:fc5586b930e3 389 alien_vector.erase(alien_vector.begin()+ i);
evanso 45:fc3238cd28c6 390 points_ ++;
evanso 36:27aa597db3d2 391 }
evanso 36:27aa597db3d2 392 }
evanso 36:27aa597db3d2 393 }
evanso 36:27aa597db3d2 394
evanso 36:27aa597db3d2 395 void GameEngine::draw_aliens(){
evanso 36:27aa597db3d2 396 // interates over alien vector and draws each new_alien object
evanso 36:27aa597db3d2 397 for (int i = 0; i < alien_vector.size(); i++){
evanso 36:27aa597db3d2 398
evanso 36:27aa597db3d2 399 check_alien_people_collision(i);
evanso 36:27aa597db3d2 400
evanso 36:27aa597db3d2 401 // deleted spaceship if alien ship touches spaceship
evanso 36:27aa597db3d2 402 if (spaceship.check_alien_collision(alien_vector[i]) &&
evanso 45:fc3238cd28c6 403 !spaceship_destroyed_){
evanso 36:27aa597db3d2 404 create_explosion(spaceship.get_pos());
evanso 45:fc3238cd28c6 405 spaceship_destroyed_ = true;
evanso 36:27aa597db3d2 406 }
evanso 36:27aa597db3d2 407
evanso 36:27aa597db3d2 408 alliens_fire_bullets(i);
evanso 36:27aa597db3d2 409
evanso 36:27aa597db3d2 410 delete_aliens(i);
evanso 34:85ccc16f24d2 411 }
evanso 34:85ccc16f24d2 412 }
evanso 34:85ccc16f24d2 413
evanso 36:27aa597db3d2 414
evanso 36:27aa597db3d2 415
evanso 36:27aa597db3d2 416 //Explotion Control ------------------------------------------------------------
evanso 36:27aa597db3d2 417
evanso 36:27aa597db3d2 418 void GameEngine::create_explosion(Vector2D destroyed_position){
evanso 36:27aa597db3d2 419 // explosion object
evanso 36:27aa597db3d2 420 Explosion new_explosion;
evanso 36:27aa597db3d2 421
evanso 36:27aa597db3d2 422 new_explosion.init(destroyed_position);
evanso 33:7fedd8029473 423
evanso 36:27aa597db3d2 424 // Stores explosion object in vector
evanso 36:27aa597db3d2 425 explosion_vector.push_back(new_explosion);
evanso 36:27aa597db3d2 426 }
evanso 36:27aa597db3d2 427
evanso 36:27aa597db3d2 428 void GameEngine::draw_explosions(){
evanso 36:27aa597db3d2 429 // interates over expoltion vector and draws each explosion object then
evanso 36:27aa597db3d2 430 // deleted object after set size
evanso 36:27aa597db3d2 431 for (int i = 0; i < explosion_vector.size(); i++){
evanso 36:27aa597db3d2 432 explosion_vector[i].draw_explosion(lcd);
evanso 31:6015e8ed859c 433
evanso 36:27aa597db3d2 434 // delete explosion after reaches set size
evanso 36:27aa597db3d2 435 if(explosion_vector[i].get_explosion_radius() == 8){
evanso 36:27aa597db3d2 436 explosion_vector.erase(explosion_vector.begin()+ i);
evanso 31:6015e8ed859c 437 }
evanso 36:27aa597db3d2 438 }
evanso 36:27aa597db3d2 439 }
evanso 36:27aa597db3d2 440
evanso 36:27aa597db3d2 441
evanso 36:27aa597db3d2 442
evanso 36:27aa597db3d2 443 //People Control ---------------------------------------------------------------
evanso 36:27aa597db3d2 444
evanso 36:27aa597db3d2 445 void GameEngine::spawn_people(){
evanso 36:27aa597db3d2 446 // Keeps number of people objects constant as people objecs are erased
evanso 36:27aa597db3d2 447 if(people_vector.size() <= 5){
evanso 36:27aa597db3d2 448 create_people();
evanso 31:6015e8ed859c 449 }
evanso 20:febd920ec29e 450 }
evanso 20:febd920ec29e 451
evanso 33:7fedd8029473 452 void GameEngine::create_people(){
evanso 33:7fedd8029473 453 // People object
evanso 33:7fedd8029473 454 People people;
evanso 33:7fedd8029473 455
evanso 33:7fedd8029473 456 people.init(pad, (rand() % 168 - 84));
evanso 33:7fedd8029473 457
evanso 33:7fedd8029473 458 // Stores alien object in vector
evanso 33:7fedd8029473 459 people_vector.push_back(people);
evanso 33:7fedd8029473 460 }
evanso 33:7fedd8029473 461
evanso 33:7fedd8029473 462 void GameEngine::draw_people(){
evanso 33:7fedd8029473 463 for (int i = 0; i < people_vector.size(); i++){
evanso 34:85ccc16f24d2 464 people_vector[i].draw_people(lcd, d_,
evanso 34:85ccc16f24d2 465 map.get_length_map(), map.get_position_x_map());
evanso 34:85ccc16f24d2 466
evanso 34:85ccc16f24d2 467 //errase person if at top of screen as captured by alien and alien is
evanso 34:85ccc16f24d2 468 //set to track mode
evanso 34:85ccc16f24d2 469 Vector2D people_pos = people_vector[i].get_pos();
evanso 40:71f947254fda 470
evanso 40:71f947254fda 471 for (int x = 0; x < alien_vector.size(); x++){
evanso 40:71f947254fda 472 Vector2D alien_pos = alien_vector[x].get_pos();
evanso 40:71f947254fda 473 if(people_pos.y < 30 && alien_pos.y < 9){
evanso 40:71f947254fda 474
evanso 40:71f947254fda 475 //set alien who abducted person to track mode
evanso 34:85ccc16f24d2 476 if(alien_vector[x].get_collision_people_element() == i){
evanso 34:85ccc16f24d2 477 alien_vector[x].set_track_flag(true);
evanso 40:71f947254fda 478 people_vector.erase(people_vector.begin()+ i);
evanso 34:85ccc16f24d2 479 }
evanso 40:71f947254fda 480
evanso 40:71f947254fda 481 }
evanso 34:85ccc16f24d2 482
evanso 34:85ccc16f24d2 483 }
evanso 33:7fedd8029473 484 }
evanso 33:7fedd8029473 485 }
evanso 33:7fedd8029473 486
evanso 19:1bc0a2d22054 487
evanso 25:70b55f5bfc87 488
evanso 36:27aa597db3d2 489 //Map Control-------------------------------------------------------------------
evanso 19:1bc0a2d22054 490
evanso 36:27aa597db3d2 491 void GameEngine::reset_map_timer(){
evanso 45:fc3238cd28c6 492 if(spaceship_destroyed_){
evanso 45:fc3238cd28c6 493 reset_map_counter_++;
evanso 36:27aa597db3d2 494
evanso 36:27aa597db3d2 495 // stops map movement
evanso 36:27aa597db3d2 496 d_ = CENTRE;
evanso 36:27aa597db3d2 497
evanso 36:27aa597db3d2 498 // reset map after set time
evanso 45:fc3238cd28c6 499 if(reset_map_counter_ == 50){
evanso 36:27aa597db3d2 500 reset_map();
evanso 25:70b55f5bfc87 501 }
evanso 36:27aa597db3d2 502 }
evanso 25:70b55f5bfc87 503 }
evanso 36:27aa597db3d2 504
evanso 30:814674b189f0 505 void GameEngine::reset_map(){
evanso 36:27aa597db3d2 506 // Reassign values to variables
evanso 30:814674b189f0 507 spaceship.init();
evanso 45:fc3238cd28c6 508 spaceship_lives_--;
evanso 45:fc3238cd28c6 509 spaceship_destroyed_ = false;
evanso 45:fc3238cd28c6 510 reset_map_counter_ = 0;
evanso 33:7fedd8029473 511
evanso 34:85ccc16f24d2 512 // erase aliens so redrawn in random positions when respawning spaceship
evanso 34:85ccc16f24d2 513 for (int i = (alien_vector.size() - 1); i >= 0 ; i--){
evanso 34:85ccc16f24d2 514 alien_vector.erase(alien_vector.begin()+ i);
evanso 34:85ccc16f24d2 515 }
evanso 36:27aa597db3d2 516
evanso 34:85ccc16f24d2 517 // erase all people so redrawn at bottom of map
evanso 34:85ccc16f24d2 518 for (int i = (people_vector.size() - 1); i >= 0 ; i--){
evanso 34:85ccc16f24d2 519 people_vector.erase(people_vector.begin()+ i);
evanso 34:85ccc16f24d2 520 }
evanso 36:27aa597db3d2 521
evanso 36:27aa597db3d2 522 // erase all alien bullets
evanso 34:85ccc16f24d2 523 for (int i = (alien_bullet_vector.size() - 1); i >= 0 ; i--){
evanso 34:85ccc16f24d2 524 alien_bullet_vector.erase(alien_bullet_vector.begin()+ i);
evanso 33:7fedd8029473 525 }
evanso 20:febd920ec29e 526 }