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Dependencies:   mbed

GameEngine/GameEngine.cpp@8:475b80f88ceb, 2019-05-08 (annotated)

Committer:
adat80
Date:
Wed May 08 23:40:34 2019 +0000
Revision:
8:475b80f88ceb
Parent:
6:f06ce4cf068a 
Final Submission. I have read and agreed with Statement of Academic Integrity.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
adat80 1:3916f272663e 1 #include "GameEngine.h"
adat80 1:3916f272663e 2
adat80 3:97cd7b3d89d0 3
adat80 2:88019d96e1da 4
adat80 1:3916f272663e 5 GameEngine::GameEngine()
adat80 1:3916f272663e 6 {
adat80 1:3916f272663e 7
adat80 1:3916f272663e 8 }
adat80 1:3916f272663e 9
adat80 1:3916f272663e 10 GameEngine::~GameEngine()
adat80 1:3916f272663e 11 {
adat80 1:3916f272663e 12
adat80 1:3916f272663e 13 }
adat80 1:3916f272663e 14
adat80 1:3916f272663e 15 void GameEngine::init(int CrossHairsSpeed, int fps)
adat80 1:3916f272663e 16 {
adat80 1:3916f272663e 17 // initialise the game parameters
adat80 3:97cd7b3d89d0 18 _game_over = false;
adat80 1:3916f272663e 19 _fps = fps;
adat80 6:f06ce4cf068a 20 _frame = 0; //keep count of number of frames
adat80 6:f06ce4cf068a 21 _levelNumber = 1; //keep count of number of frames
adat80 6:f06ce4cf068a 22 _killCount = 0; //keep count of number of enemies killed
adat80 1:3916f272663e 23
adat80 6:f06ce4cf068a 24 //initialise wall object with max life
adat80 2:88019d96e1da 25 _wall.init(100);
adat80 6:f06ce4cf068a 26
adat80 6:f06ce4cf068a 27 //initialise cross hairs with cross hairs speed
adat80 1:3916f272663e 28 _crossHairs.init(CrossHairsSpeed);
adat80 1:3916f272663e 29
adat80 6:f06ce4cf068a 30 //seed random with time
adat80 1:3916f272663e 31 srand(time(NULL));
adat80 1:3916f272663e 32
adat80 6:f06ce4cf068a 33 //set enemies pointer to point to array of enemies
adat80 1:3916f272663e 34 _enemies = _level.init(_levelNumber);
adat80 1:3916f272663e 35
adat80 1:3916f272663e 36
adat80 1:3916f272663e 37
adat80 1:3916f272663e 38
adat80 1:3916f272663e 39
adat80 1:3916f272663e 40
adat80 1:3916f272663e 41
adat80 1:3916f272663e 42 }
adat80 1:3916f272663e 43
adat80 1:3916f272663e 44 void GameEngine::read_input(Gamepad &pad)
adat80 1:3916f272663e 45 {
adat80 1:3916f272663e 46 _angle = pad.get_angle();
adat80 1:3916f272663e 47 _mag = pad.get_mag();
adat80 1:3916f272663e 48 }
adat80 1:3916f272663e 49
adat80 1:3916f272663e 50 void GameEngine::draw(N5110 &lcd)
adat80 1:3916f272663e 51 {
adat80 6:f06ce4cf068a 52 //print level number at top of display
adat80 6:f06ce4cf068a 53 char level[14];
adat80 6:f06ce4cf068a 54 sprintf(level,"lvl:%i",_levelNumber);
adat80 6:f06ce4cf068a 55 lcd.printString(level,23,0);
adat80 2:88019d96e1da 56
adat80 2:88019d96e1da 57 //draw wall
adat80 2:88019d96e1da 58 _wall.draw(lcd);
adat80 2:88019d96e1da 59
adat80 6:f06ce4cf068a 60 //draw all enemies
adat80 3:97cd7b3d89d0 61 for (int i=0; i < _level.get_number_of_enemies(); i++) {
adat80 1:3916f272663e 62 _enemies[i].draw(lcd);
adat80 1:3916f272663e 63 }
adat80 1:3916f272663e 64
adat80 6:f06ce4cf068a 65 //draw cross hairs
adat80 2:88019d96e1da 66 _crossHairs.draw(lcd);
adat80 1:3916f272663e 67 }
adat80 1:3916f272663e 68
adat80 1:3916f272663e 69 void GameEngine::update(Gamepad &pad)
adat80 1:3916f272663e 70 {
adat80 6:f06ce4cf068a 71 //increment frame count
adat80 3:97cd7b3d89d0 72 _frame = _frame + 1;
adat80 6:f06ce4cf068a 73
adat80 6:f06ce4cf068a 74 /*if statement finds modulus of frame by fps/2 and checks if equal to 0
adat80 6:f06ce4cf068a 75 /this will be true every half second
adat80 6:f06ce4cf068a 76 /when this is true if an enemies state is that it is attacking the wall
adat80 6:f06ce4cf068a 77 /the wall will be damaged
adat80 6:f06ce4cf068a 78 */
adat80 3:97cd7b3d89d0 79 if (_frame%(_fps/2) == 0) {
adat80 3:97cd7b3d89d0 80 for (int i=0; i < _level.get_number_of_enemies(); i++) {
adat80 3:97cd7b3d89d0 81 if(_enemies[i].get_current_action() == attacking) {
adat80 3:97cd7b3d89d0 82 _wall.take_damage(1);
adat80 5:8bd09c675f28 83 if (_wall.get_wall_health() <= 0) {
adat80 6:f06ce4cf068a 84 game_over(); //if wall health gets to zero game is over
adat80 3:97cd7b3d89d0 85 }
adat80 3:97cd7b3d89d0 86 }
adat80 3:97cd7b3d89d0 87 }
adat80 3:97cd7b3d89d0 88 }
adat80 3:97cd7b3d89d0 89
adat80 6:f06ce4cf068a 90 //update the level object
adat80 1:3916f272663e 91 _level.update(_fps);
adat80 6:f06ce4cf068a 92 //update cross hairs object
adat80 5:8bd09c675f28 93 _crossHairs.update(_angle,_mag);
adat80 1:3916f272663e 94
adat80 6:f06ce4cf068a 95 //update all enemies
adat80 3:97cd7b3d89d0 96 for (int i=0; i < _level.get_number_of_enemies(); i++) {
adat80 2:88019d96e1da 97 _enemies[i].update(_fps);
adat80 1:3916f272663e 98 }
adat80 1:3916f272663e 99
adat80 6:f06ce4cf068a 100 //check if either A or B are pressed, if true fire shot
adat80 1:3916f272663e 101 if ( pad.check_event(Gamepad::B_PRESSED) == true) {
adat80 1:3916f272663e 102 fireShot(pad);
adat80 2:88019d96e1da 103 } else if ( pad.check_event(Gamepad::A_PRESSED) == true) {
adat80 2:88019d96e1da 104 fireShot(pad);
adat80 1:3916f272663e 105 }
adat80 1:3916f272663e 106
adat80 1:3916f272663e 107
adat80 1:3916f272663e 108
adat80 1:3916f272663e 109 }
adat80 1:3916f272663e 110
adat80 1:3916f272663e 111 void GameEngine::fireShot(Gamepad &gpad)
adat80 1:3916f272663e 112 {
adat80 6:f06ce4cf068a 113 gpad.tone(400, 0.1); //gunshot noise
adat80 6:f06ce4cf068a 114 Vector2D shotLoc = _crossHairs.get_pos(); //get cross hairs location to get shot location
adat80 6:f06ce4cf068a 115 //check if enemies are alive
adat80 3:97cd7b3d89d0 116 for(int i = 0; i < _level.get_number_of_enemies(); i++) {
adat80 2:88019d96e1da 117 if (_enemies[i].get_alive()) {
adat80 6:f06ce4cf068a 118 //function finds if enemy i has been shot
adat80 4:87f3f3e5cdd9 119 was_enemy_shot(i, shotLoc);
adat80 1:3916f272663e 120 }
adat80 1:3916f272663e 121 }
adat80 1:3916f272663e 122 }
adat80 1:3916f272663e 123
adat80 4:87f3f3e5cdd9 124 void GameEngine::was_enemy_shot(int i, Vector2D shotLoc)
adat80 4:87f3f3e5cdd9 125 {
adat80 6:f06ce4cf068a 126 Vector2D enemyLoc = _enemies[i].get_pos(); //get enemy position
adat80 6:f06ce4cf068a 127 //compare x and y distance of enemy and shot and if it is less than 4 enemy is shot
adat80 4:87f3f3e5cdd9 128 if (abs(enemyLoc.x - shotLoc.x) < 4 && abs(enemyLoc.y - shotLoc.y) < 4) {
adat80 6:f06ce4cf068a 129 _killCount = _killCount + 1; //incriment kill count
adat80 6:f06ce4cf068a 130 _enemies[i].set_alive(false); //set alive flag to false
adat80 6:f06ce4cf068a 131 //set enemy action to dying
adat80 6:f06ce4cf068a 132 Action myAc;
adat80 4:87f3f3e5cdd9 133 myAc = dying;
adat80 4:87f3f3e5cdd9 134 _enemies[i].set_current_action(myAc);
adat80 4:87f3f3e5cdd9 135
adat80 6:f06ce4cf068a 136 //checks if the kill count has reached the enemy number of level
adat80 4:87f3f3e5cdd9 137 if (_killCount == _level.get_number_of_enemies()) {
adat80 6:f06ce4cf068a 138 _killCount = 0; //resets kill count
adat80 6:f06ce4cf068a 139 _levelNumber = _levelNumber + 1; //incriments level number
adat80 6:f06ce4cf068a 140 _enemies = _level.init(_levelNumber); //initialise new level and set pointer to new enemy array
adat80 4:87f3f3e5cdd9 141 }
adat80 4:87f3f3e5cdd9 142 }
adat80 4:87f3f3e5cdd9 143
adat80 4:87f3f3e5cdd9 144
adat80 4:87f3f3e5cdd9 145 }
adat80 4:87f3f3e5cdd9 146
adat80 3:97cd7b3d89d0 147 bool GameEngine::get_game_over() {
adat80 6:f06ce4cf068a 148 return _game_over; //true if over, false if not
adat80 3:97cd7b3d89d0 149
adat80 3:97cd7b3d89d0 150 }
adat80 3:97cd7b3d89d0 151 void GameEngine::set_game_over(bool is_game_over) {
adat80 6:f06ce4cf068a 152 _game_over = is_game_over; //true if over, false if not
adat80 3:97cd7b3d89d0 153 }
adat80 5:8bd09c675f28 154
adat80 5:8bd09c675f28 155 void GameEngine::game_over() {
adat80 6:f06ce4cf068a 156 _game_over = true; //sets the game as over
adat80 5:8bd09c675f28 157
adat80 5:8bd09c675f28 158 }