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Dependencies:   mbed

Gameengine/Gameengine.cpp@58:4a826093d9e9, 2019-05-07 (annotated)

Committer:
el17arm
Date:
Tue May 07 00:30:46 2019 +0000
Revision:
58:4a826093d9e9
Parent:
57:0f3bbbac72fd
Child:
60:3df033345059
removed initialising structs for blocks, enemies and keys as arrays will; perform the same purpose

Who changed what in which revision?

UserRevisionLine numberNew contents of line
el17arm 29:d85886364643 1 #include "Gameengine.h"
el17arm 29:d85886364643 2
el17arm 29:d85886364643 3 Gameengine::Gameengine()
el17arm 29:d85886364643 4 {
el17arm 29:d85886364643 5 }
el17arm 29:d85886364643 6 Gameengine::~Gameengine()
el17arm 29:d85886364643 7 {
el17arm 29:d85886364643 8 }
el17arm 45:bad704c546d4 9 //initialises default game parameters
el17arm 29:d85886364643 10 void Gameengine::game_init()
el17arm 29:d85886364643 11 {
el17arm 45:bad704c546d4 12 _enem_flag = false; // flag to initialise enemies each new level
el17arm 45:bad704c546d4 13 _key_reinit = false; // re initialise keys at start of new level
el17arm 45:bad704c546d4 14 _five_keys = 5; // number of keys to advance to next level
el17arm 49:9bea7089b657 15 _level = 0; //start level
el17arm 58:4a826093d9e9 16 _sprites.miner_init(3, 38); //start position of player
el17arm 49:9bea7089b657 17 _lives = 3; // starting lives
el17arm 45:bad704c546d4 18 _time = 120; // time to complete each level
el17arm 29:d85886364643 19 }
el17arm 45:bad704c546d4 20 // updates player position and interaction with level objects
el17arm 29:d85886364643 21 void Gameengine::update(N5110 &lcd, Gamepad &pad)
el17arm 29:d85886364643 22 {
el17arm 29:d85886364643 23 read_direction(pad);
el17arm 38:55bb9da08a52 24 _sprites.miner_draw(lcd);
el17arm 33:023f57d52b1c 25 _sprites.miner_move(_d, lcd);
el17arm 33:023f57d52b1c 26 _sprites.miner_gravity(lcd);
el17arm 33:023f57d52b1c 27 _sprites.miner_jump(lcd, pad);
el17arm 33:023f57d52b1c 28 _sprites.miner_land(lcd);
el17arm 40:913339e324b8 29 _sprites.keys_collected();
el17arm 40:913339e324b8 30 key_draw(lcd, pad);
el17arm 41:0cf320f73424 31 lose_life(pad, lcd);
el17arm 29:d85886364643 32 game_over();
el17arm 29:d85886364643 33 next_level(lcd);
el17arm 41:0cf320f73424 34 oxygen_leds();
el17arm 41:0cf320f73424 35 lives_leds();
el17arm 41:0cf320f73424 36 }
el17arm 45:bad704c546d4 37 // draws level 1 objects
el17arm 41:0cf320f73424 38 void Gameengine::draw_l1(N5110 &lcd, Gamepad &pad)
el17arm 41:0cf320f73424 39 {
el17arm 41:0cf320f73424 40 if (_level == 0) {
el17arm 41:0cf320f73424 41
el17arm 45:bad704c546d4 42 _t.start(); // starts level timer
el17arm 45:bad704c546d4 43 _lev.level_platforms1(lcd); // position of platforms
el17arm 45:bad704c546d4 44 _lev.key_pos1(); // key positions
el17arm 45:bad704c546d4 45 _lev.trap_pos1(); // trap positions
el17arm 45:bad704c546d4 46 _lev.block_pos1(); // solid block positions
el17arm 45:bad704c546d4 47 _lev.soft_pos1(); // sinking block positions
el17arm 45:bad704c546d4 48 _lev.enem_pos1(); // enemy positions
el17arm 45:bad704c546d4 49 blocks(lcd); // block placement and collision settings
el17arm 41:0cf320f73424 50 }
el17arm 41:0cf320f73424 51 }
el17arm 45:bad704c546d4 52 // draws level 2 objects
el17arm 41:0cf320f73424 53 void Gameengine::draw_l2(N5110 &lcd, Gamepad &pad)
el17arm 41:0cf320f73424 54 {
el17arm 41:0cf320f73424 55 if(_level == 1) {
el17arm 41:0cf320f73424 56
el17arm 41:0cf320f73424 57 _t.start();
el17arm 45:bad704c546d4 58 key_reinit(); // re-sets key settings so they appear and disappear once collected
el17arm 42:d81c008b0436 59 _lev.level_platforms2(lcd);
el17arm 44:e29458976114 60 _lev.key_pos2();
el17arm 44:e29458976114 61 _lev.trap_pos2();
el17arm 42:d81c008b0436 62 _lev.block_pos2();
el17arm 42:d81c008b0436 63 _lev.soft_pos2();
el17arm 44:e29458976114 64 _lev.enem_pos2();
el17arm 41:0cf320f73424 65 blocks(lcd);
el17arm 41:0cf320f73424 66 }
el17arm 29:d85886364643 67 }
el17arm 45:bad704c546d4 68 // draws level 3 objects
el17arm 44:e29458976114 69 void Gameengine::draw_l3(N5110 &lcd, Gamepad &pad)
el17arm 44:e29458976114 70 {
el17arm 44:e29458976114 71 if(_level == 2) {
el17arm 58:4a826093d9e9 72
el17arm 44:e29458976114 73 _t.start();
el17arm 44:e29458976114 74 key_reinit();
el17arm 44:e29458976114 75 _lev.level_platforms3(lcd);
el17arm 44:e29458976114 76 _lev.key_pos3();
el17arm 44:e29458976114 77 _lev.trap_pos3();
el17arm 44:e29458976114 78 _lev.block_pos3();
el17arm 44:e29458976114 79 _lev.soft_pos3();
el17arm 44:e29458976114 80 _lev.enem_pos3();
el17arm 44:e29458976114 81 blocks(lcd);
el17arm 58:4a826093d9e9 82 }
el17arm 58:4a826093d9e9 83 }
el17arm 58:4a826093d9e9 84
el17arm 58:4a826093d9e9 85 void Gameengine::draw_l4(N5110 &lcd, Gamepad &pad)
el17arm 58:4a826093d9e9 86 {
el17arm 58:4a826093d9e9 87 if(_level == 3) {
el17arm 58:4a826093d9e9 88
el17arm 58:4a826093d9e9 89 _t.start();
el17arm 58:4a826093d9e9 90 key_reinit();
el17arm 58:4a826093d9e9 91 _lev.level_platforms4(lcd);
el17arm 58:4a826093d9e9 92 _lev.key_pos4();
el17arm 58:4a826093d9e9 93 _lev.trap_pos4();
el17arm 58:4a826093d9e9 94 _lev.block_pos4();
el17arm 58:4a826093d9e9 95 _lev.soft_pos4();
el17arm 58:4a826093d9e9 96 _lev.enem_pos4();
el17arm 58:4a826093d9e9 97 blocks(lcd);
el17arm 45:bad704c546d4 98 game_complete(lcd); // displays game complete screen
el17arm 44:e29458976114 99 }
el17arm 44:e29458976114 100 }
el17arm 44:e29458976114 101
el17arm 45:bad704c546d4 102 // reads direction of joystick
el17arm 38:55bb9da08a52 103 void Gameengine::read_direction(Gamepad &pad)
el17arm 38:55bb9da08a52 104 {
el17arm 38:55bb9da08a52 105 _d = pad.get_direction();
el17arm 38:55bb9da08a52 106 }
el17arm 38:55bb9da08a52 107
el17arm 58:4a826093d9e9 108 // turns off LEDS proportionally Vs time left to complete level
el17arm 41:0cf320f73424 109 int Gameengine::oxygen_leds()
el17arm 44:e29458976114 110 {
el17arm 41:0cf320f73424 111 if(_t.read() < (_time*0.33f)) {
el17arm 41:0cf320f73424 112 _oxy_state = 3;
el17arm 41:0cf320f73424 113 }
el17arm 41:0cf320f73424 114 if(_t.read() > (_time*0.33f) && _t.read() < (_time*0.66f)) {
el17arm 41:0cf320f73424 115 _oxy_state = 2;
el17arm 41:0cf320f73424 116 }
el17arm 41:0cf320f73424 117 if(_t.read() > (_time*0.66f)) {
el17arm 41:0cf320f73424 118 _oxy_state = 1;
el17arm 41:0cf320f73424 119 }
el17arm 41:0cf320f73424 120 if(_t.read() >= _time) {
el17arm 41:0cf320f73424 121 _oxy_state = 0;
el17arm 41:0cf320f73424 122 }
el17arm 46:de3462ad5aef 123 return _oxy_state; // _oxy_state will change FSM value in main.cpp leds()
el17arm 41:0cf320f73424 124 }
el17arm 41:0cf320f73424 125
el17arm 45:bad704c546d4 126 // turns off led every time life is lost
el17arm 41:0cf320f73424 127 int Gameengine::lives_leds()
el17arm 41:0cf320f73424 128 {
el17arm 41:0cf320f73424 129 _life_state = _lives;
el17arm 48:bd1f31fbfee3 130 return _life_state; // _life_state will change FSM value in main.cpp leds()
el17arm 41:0cf320f73424 131 }
el17arm 41:0cf320f73424 132
el17arm 45:bad704c546d4 133 // displays score at end of game
el17arm 41:0cf320f73424 134 void Gameengine::get_score(N5110 &lcd)
el17arm 45:bad704c546d4 135 {
el17arm 45:bad704c546d4 136 // score is, time left at each level multiplied by lives left + 10 points for each key
el17arm 41:0cf320f73424 137 float flt_score = ((_lives +1) * _total_time + (10 * _sprites.keys_collected()));
el17arm 41:0cf320f73424 138 int int_score = static_cast<int>(flt_score);
el17arm 41:0cf320f73424 139 char buffer[14];
el17arm 41:0cf320f73424 140 sprintf(buffer,"%2d",int_score);
el17arm 58:4a826093d9e9 141 lcd.printString(buffer,54,2);
el17arm 44:e29458976114 142 }
el17arm 44:e29458976114 143
el17arm 45:bad704c546d4 144 // returns true final level complete
el17arm 44:e29458976114 145 bool Gameengine::game_complete(N5110 &lcd)
el17arm 44:e29458976114 146 {
el17arm 58:4a826093d9e9 147 if(_level == 4) {
el17arm 44:e29458976114 148 return true;
el17arm 44:e29458976114 149 }
el17arm 44:e29458976114 150 return false;
el17arm 45:bad704c546d4 151 }
el17arm 45:bad704c546d4 152
el17arm 45:bad704c546d4 153 void Gameengine::lose_life(Gamepad &pad, N5110 &lcd)
el17arm 45:bad704c546d4 154 {
el17arm 45:bad704c546d4 155 if (trap_death(lcd) == true || enemies(lcd) == true) {
el17arm 45:bad704c546d4 156 _lives--; //reduces lives left by 1
el17arm 45:bad704c546d4 157 pad.tone(200, 0.5); // death sound
el17arm 45:bad704c546d4 158 _sprites.miner_init(3, 33); // puts player back to start of level
el17arm 45:bad704c546d4 159 wait(1); //short pause so restart isn't instant
el17arm 45:bad704c546d4 160 }
el17arm 45:bad704c546d4 161 }
el17arm 45:bad704c546d4 162
el17arm 45:bad704c546d4 163 // game over when lives lost or time runs out
el17arm 45:bad704c546d4 164 bool Gameengine::game_over()
el17arm 45:bad704c546d4 165 {
el17arm 45:bad704c546d4 166 if(_lives == 0 || _t.read() > _time) {
el17arm 45:bad704c546d4 167 _t.stop();
el17arm 57:0f3bbbac72fd 168 _lives = 0; // lives reduced to zero if time runs out
el17arm 57:0f3bbbac72fd 169 printf("total time %f \n", _total_time);
el17arm 45:bad704c546d4 170 return true;
el17arm 45:bad704c546d4 171 }
el17arm 45:bad704c546d4 172 return false;
el17arm 45:bad704c546d4 173 }
el17arm 45:bad704c546d4 174
el17arm 45:bad704c546d4 175 // activates level exit when all keys collected
el17arm 45:bad704c546d4 176 bool Gameengine::level_exit(N5110 &lcd)
el17arm 45:bad704c546d4 177 {
el17arm 54:7fa8c07fdea4 178 if(_sprites.exit_level(79,41,lcd) == true) {
el17arm 45:bad704c546d4 179 return true;
el17arm 45:bad704c546d4 180 } else {
el17arm 45:bad704c546d4 181 return false;
el17arm 45:bad704c546d4 182 }
el17arm 45:bad704c546d4 183 }
el17arm 45:bad704c546d4 184
el17arm 45:bad704c546d4 185 // if keys collected and player reaches exit, sets next level parameters
el17arm 45:bad704c546d4 186 void Gameengine::next_level(N5110 &lcd)
el17arm 45:bad704c546d4 187 {
el17arm 45:bad704c546d4 188 if(level_exit(lcd) && _sprites.keys_collected() == _five_keys) {
el17arm 45:bad704c546d4 189 _t.stop(); // stops level timer
el17arm 45:bad704c546d4 190 _total_time += (_time - _t.read()); // adds up time left for score calculation
el17arm 45:bad704c546d4 191 _level = _level++; // next level activated
el17arm 45:bad704c546d4 192 _five_keys += 5; // raises keys needed by 5 for next level
el17arm 45:bad704c546d4 193 _sprites.miner_init(3,33); // resets player position
el17arm 45:bad704c546d4 194 _enem_flag = false; // allows enemies to be reinitialised
el17arm 45:bad704c546d4 195 _key_reinit = false; // allows keys to be reintialised
el17arm 45:bad704c546d4 196 _t.reset(); // resets level timer
el17arm 45:bad704c546d4 197 }
el17arm 45:bad704c546d4 198 }
el17arm 45:bad704c546d4 199
el17arm 45:bad704c546d4 200 // places traps and checks if collision with player
el17arm 45:bad704c546d4 201 bool Gameengine::trap_death(N5110 &lcd)
el17arm 45:bad704c546d4 202 {
el17arm 45:bad704c546d4 203 int i = _level; // tells function which level settings to use
el17arm 45:bad704c546d4 204 if( _sprites.trap(_lev.trap1.tx[i], _lev.trap1.ty[i], lcd) ||
el17arm 45:bad704c546d4 205 _sprites.trap(_lev.trap2.tx[i], _lev.trap2.ty[i], lcd) ||
el17arm 45:bad704c546d4 206 _sprites.trap(_lev.trap3.tx[i], _lev.trap3.ty[i], lcd) ||
el17arm 45:bad704c546d4 207 _sprites.trap(_lev.trap4.tx[i], _lev.trap4.ty[i], lcd) ||
el17arm 45:bad704c546d4 208 _sprites.trap(_lev.trap5.tx[i], _lev.trap5.ty[i], lcd)) {
el17arm 45:bad704c546d4 209 return true;
el17arm 45:bad704c546d4 210 }
el17arm 45:bad704c546d4 211 return false;
el17arm 45:bad704c546d4 212 }
el17arm 45:bad704c546d4 213
el17arm 45:bad704c546d4 214 // draws keys and checks if collision with player
el17arm 45:bad704c546d4 215 void Gameengine::key_draw(N5110 &lcd, Gamepad &pad)
el17arm 45:bad704c546d4 216 {
el17arm 45:bad704c546d4 217 int i = _level; // tells function which level settings to use
el17arm 45:bad704c546d4 218 _sprites.key_collect(0, _lev.key1.kx[i], _lev.key1.ky[i], lcd, pad);
el17arm 45:bad704c546d4 219 _sprites.key_collect(1, _lev.key2.kx[i], _lev.key2.ky[i], lcd, pad);
el17arm 45:bad704c546d4 220 _sprites.key_collect(2, _lev.key3.kx[i], _lev.key3.ky[i], lcd, pad);
el17arm 45:bad704c546d4 221 _sprites.key_collect(3, _lev.key4.kx[i], _lev.key4.ky[i], lcd, pad);
el17arm 45:bad704c546d4 222 _sprites.key_collect(4, _lev.key5.kx[i], _lev.key5.ky[i], lcd, pad);
el17arm 45:bad704c546d4 223 }
el17arm 45:bad704c546d4 224
el17arm 46:de3462ad5aef 225
el17arm 45:bad704c546d4 226 // places and checks for collision with sinking and solid blocks
el17arm 45:bad704c546d4 227 void Gameengine::blocks(N5110 &lcd)
el17arm 45:bad704c546d4 228 {
el17arm 45:bad704c546d4 229 int i = _level; // tells function which level settings to use
el17arm 45:bad704c546d4 230 // sinking blocks position length and collision detection
el17arm 45:bad704c546d4 231 _sprites.soft_blocks(_lev.sof1.sx1[i], _lev.sof1.sy[i], _lev.sof1.sx2[i], lcd);
el17arm 45:bad704c546d4 232 _sprites.soft_blocks(_lev.sof2.sx1[i], _lev.sof2.sy[i], _lev.sof2.sx2[i], lcd);
el17arm 45:bad704c546d4 233 _sprites.soft_blocks(_lev.sof3.sx1[i], _lev.sof3.sy[i], _lev.sof3.sx2[i], lcd);
el17arm 45:bad704c546d4 234 _sprites.soft_blocks(_lev.sof4.sx1[i], _lev.sof4.sy[i], _lev.sof4.sx2[i], lcd);
el17arm 45:bad704c546d4 235 _sprites.soft_blocks(_lev.sof5.sx1[i], _lev.sof5.sy[i], _lev.sof5.sx2[i], lcd);
el17arm 45:bad704c546d4 236 // block positions and collision settings, indexed so no conflicts if player is contact with multiple blocks
el17arm 45:bad704c546d4 237 _sprites.blocks(_d, 0, _lev.sol1.bx[i], _lev.sol1.by[i], lcd);
el17arm 45:bad704c546d4 238 _sprites.blocks(_d, 1, _lev.sol2.bx[i], _lev.sol2.by[i], lcd);
el17arm 45:bad704c546d4 239 _sprites.blocks(_d, 2, _lev.sol3.bx[i], _lev.sol3.by[i], lcd);
el17arm 45:bad704c546d4 240 _sprites.blocks(_d, 3, _lev.sol4.bx[i], _lev.sol4.by[i], lcd);
el17arm 45:bad704c546d4 241 _sprites.blocks(_d, 4, _lev.sol5.bx[i], _lev.sol5.by[i], lcd);
el17arm 45:bad704c546d4 242 }
el17arm 45:bad704c546d4 243 // initialises enemies at level start, updates movement, checks collisions
el17arm 45:bad704c546d4 244 // indexed (0, 1, 2) so each enemy is treated independently
el17arm 45:bad704c546d4 245 bool Gameengine::enemies(N5110 &lcd)
el17arm 45:bad704c546d4 246 {
el17arm 45:bad704c546d4 247 int i = _level; // tells function which level settings to use
el17arm 45:bad704c546d4 248 if(_enem_flag == false) {
el17arm 45:bad704c546d4 249 // initialises enemy position and distance to move each way
el17arm 45:bad704c546d4 250 _sprites.enemy_init(0, _lev.enem1.ex[i], _lev.enem1.ey[i], _lev.enem1.d[i]);
el17arm 45:bad704c546d4 251 _sprites.enemy_init(1, _lev.enem2.ex[i], _lev.enem2.ey[i], _lev.enem2.d[i]);
el17arm 45:bad704c546d4 252 _sprites.enemy_init(2, _lev.enem3.ex[i], _lev.enem3.ey[i], _lev.enem3.d[i]);
el17arm 45:bad704c546d4 253 _enem_flag = true;
el17arm 45:bad704c546d4 254 }
el17arm 45:bad704c546d4 255 // enemy velocity
el17arm 45:bad704c546d4 256 _sprites.enemy_move(0, _lev.enem1.v[i], lcd);
el17arm 45:bad704c546d4 257 _sprites.enemy_move(1, _lev.enem2.v[i], lcd);
el17arm 45:bad704c546d4 258 _sprites.enemy_move(2, _lev.enem3.v[i], lcd);
el17arm 45:bad704c546d4 259 // checks if collision
el17arm 45:bad704c546d4 260 if(_sprites.enemy_collision(0) || _sprites.enemy_collision(1) ||
el17arm 45:bad704c546d4 261 _sprites.enemy_collision(2)) {
el17arm 45:bad704c546d4 262 return true;
el17arm 45:bad704c546d4 263 }
el17arm 45:bad704c546d4 264 return false;
el17arm 46:de3462ad5aef 265 }
el17arm 46:de3462ad5aef 266
el17arm 46:de3462ad5aef 267 // reinitialises keys when level complete
el17arm 46:de3462ad5aef 268 void Gameengine::key_reinit()
el17arm 46:de3462ad5aef 269 {
el17arm 46:de3462ad5aef 270 if(_key_reinit == false) {
el17arm 46:de3462ad5aef 271 for(int i = 0; i<5; i++) {
el17arm 58:4a826093d9e9 272 _sprites._key[i] = false;
el17arm 46:de3462ad5aef 273 }
el17arm 58:4a826093d9e9 274 _key_reinit = true;
el17arm 46:de3462ad5aef 275 }
el17arm 37:4d525a37d5d2 276 }