Final Submission. I have read and agreed with Statement of Academic Integrity.
Dependencies: mbed Gamepad N5110 Joystick
Revision 10:aedca0082855, committed 2019-05-09
- Comitter:
- el16dlc
- Date:
- Thu May 09 13:52:41 2019 +0000
- Parent:
- 9:a7ea33e6bd82
- Commit message:
- Final
Changed in this revision
diff -r a7ea33e6bd82 -r aedca0082855 Game_engine/Game_engine.cpp --- a/Game_engine/Game_engine.cpp Thu May 09 11:36:21 2019 +0000 +++ b/Game_engine/Game_engine.cpp Thu May 09 13:52:41 2019 +0000 @@ -1,21 +1,24 @@ #include "Game_engine.h" #include "Snake.h" +// constructor and destructor empty GameEngine::GameEngine() { } +GameEngine::~GameEngine() { +} -GameEngine::~GameEngine() { -} +// Instance Snake snake; void GameEngine::direction_reset() { - _direction = 0; + _direction = 0; // resets direction so menu can be selected using buttons } + void GameEngine::init() { - snake.init(); + snake.init(); // initialize snake _game_cont = true; - snake.set_food_posX((rand()%(19) + 1) * 4); - snake.set_food_posY((rand()%(11) + 1) * 4 - 2); + snake.set_food_posX((rand()%(19) + 1) * 4); // randomize horizontal food position + snake.set_food_posY((rand()%(11) + 1) * 4 - 2); // randomize vertical food position _body_seg = 1; _direction = 0; _score = 0; @@ -23,26 +26,26 @@ void GameEngine::draw(N5110 &lcd) { lcd.drawRect(0,0,WIDTH,HEIGHT,FILL_TRANSPARENT); // Draws screen limits - snake.draw_head(lcd); - snake.draw_food(lcd); + snake.draw_head(lcd); // call head drawing + snake.draw_food(lcd); // call food drawing } void GameEngine::get_dir(Gamepad &gamepad) { - if ( gamepad.check_event(Gamepad::Y_PRESSED) && _direction != 1) { + if ( gamepad.check_event(Gamepad::Y_PRESSED) && _direction != 1) { // if Y button pressed go up unless snake is going down _direction = 0; } - else if ( gamepad.check_event(Gamepad::A_PRESSED) && _direction != 0) { + else if ( gamepad.check_event(Gamepad::A_PRESSED) && _direction != 0) { // if A button pressed go down unless snake is going up _direction = 1; } - else if ( gamepad.check_event(Gamepad::X_PRESSED) && _direction != 3) { + else if ( gamepad.check_event(Gamepad::X_PRESSED) && _direction != 3) { // if X button pressed go left unless snake is going right _direction = 2; } - else if ( gamepad.check_event(Gamepad::B_PRESSED) && _direction != 2) { + else if ( gamepad.check_event(Gamepad::B_PRESSED) && _direction != 2) { // if B button pressed go right unless snake is going left _direction = 3; } } -void GameEngine::snake_move() { +void GameEngine::snake_move() { // checks direction of snake and increments snake in direction of travel if (_direction == 0) { snake.set_snake_posY (snake.get_snake_posY()- 4); } else if (_direction == 1) { @@ -57,55 +60,61 @@ void GameEngine::food_move() { srand(time(NULL)); _food_reset = true; - if(snake.get_snake_posX() == snake.get_food_posX() && snake.get_snake_posY() == snake.get_food_posY()) { + if(snake.get_snake_posX() == snake.get_food_posX() && snake.get_snake_posY() == snake.get_food_posY()) { // if snake head and food position in same place then reset food snake.set_food_posX((rand()%(19) + 1) * 4); snake.set_food_posY((rand()%(11) + 1) * 4 - 2); - while(_food_reset == true) { + while(_food_reset == true) { // loop until food reset flag is not triggered _food_reset = false; for (int k = _body_seg; k > 0; k--) { if((_body_posX[k] == snake.get_food_posX() && _body_posY[k] == snake.get_food_posY()) || (snake.get_snake_posX() == snake.get_food_posX() && snake.get_snake_posY() == snake.get_food_posY())) { + // if food position is the same as any of the snake body segments then reset food snake.set_food_posX((rand()%(19) + 1) * 4); snake.set_food_posY((rand()%(11) + 1) * 4 - 2); _food_reset = true; } } } - _body_seg = _body_seg + 1; - _score = _score + 1; + _body_seg = _body_seg + 1; // increment number of body segments + _score = _score + 1; // increment score } } + void GameEngine::snake_body(N5110 &lcd) { _body_posX[0] = snake.get_snake_posX(); _body_posY[0] = snake.get_snake_posY(); for (int j = _body_seg; j > 0; j--) { - lcd.drawRect(_body_posX[j],_body_posY[j],4,4,FILL_BLACK); + lcd.drawRect(_body_posX[j],_body_posY[j],4,4,FILL_BLACK); // draw each body part _body_posX[j] = _body_posX[j-1]; _body_posY[j] = _body_posY[j-1]; } } void GameEngine::check_wall_collision() { - if (snake.get_snake_posX() == 0 || snake.get_snake_posX() > 80 || snake.get_snake_posY() < 0 || snake.get_snake_posY() > 44) { + if (snake.get_snake_posX() < 4 || snake.get_snake_posX() > 80 || snake.get_snake_posY() < 0 || snake.get_snake_posY() > 44) { // check if snake head has hit any of the walls _game_cont = false; } } void GameEngine::check_snake_collision() { for (int i = _body_seg; i > 1; i--) { - if (_body_posX[i] == snake.get_snake_posX() && _body_posY[i] == snake.get_snake_posY()) { - _game_cont = false; + if (_body_posX[i] == snake.get_snake_posX() && _body_posY[i] == snake.get_snake_posY()) { // if snake head matches any part of snake body collision has occurred + _game_cont = false; } } - } // accessors +// this method gets the boolean value for checking whether the game should be running bool GameEngine::get_game_cont() { return _game_cont; } + +// this method gets the direction set by the gamepad int GameEngine::get_direction() { return _direction; } + +// this method gets the score int GameEngine::get_score() { return _score; }
diff -r a7ea33e6bd82 -r aedca0082855 Game_engine/Game_engine.h --- a/Game_engine/Game_engine.h Thu May 09 11:36:21 2019 +0000 +++ b/Game_engine/Game_engine.h Thu May 09 13:52:41 2019 +0000 @@ -9,23 +9,57 @@ #include "Snake.h" - +/** GameEngine Class + * @brief The game engine for snake game + * @author Daniel Crockford 201039580 + * @date 09 May 2019 + */ class GameEngine { public: + /** Constructor */ GameEngine(); + + /** DeConstructor */ ~GameEngine(); + + /** resets direction */ void direction_reset(); + + /** initialises engine */ void init(); + + /** draws all objects + * @param N5110 class for controlling lcd screen */ void draw(N5110 &lcd); + + /** get directions from gamepad + * param Gamepad class for accessing gamepad controls */ void get_dir(Gamepad &gamepad); + + /** moves snake */ void snake_move(); + + /** moves food */ void food_move(); + + /** draws snake body + * @param N5110 class for controlling lcd screen*/ void snake_body(N5110 &lcd); + + /** checks for collisions with wall and creates flag */ void check_wall_collision(); + + /** checks for collision with snake body and creates flag */ void check_snake_collision(); + + /** get game continue flag */ bool get_game_cont(); + + /** get direction value */ int get_direction(); + + /** get score */ int get_score(); private:
diff -r a7ea33e6bd82 -r aedca0082855 Snake/Snake.cpp --- a/Snake/Snake.cpp Thu May 09 11:36:21 2019 +0000 +++ b/Snake/Snake.cpp Thu May 09 13:52:41 2019 +0000 @@ -1,5 +1,6 @@ #include "Snake.h" +// constructor and destructor empty Snake::Snake() { } @@ -15,28 +16,39 @@ lcd.drawRect(_snake_posX,_snake_posY,4,4,FILL_BLACK); // Draws snake head } -void Snake::set_snake_posX(int snake_posX) {_snake_posX = snake_posX;} // mutators allow changing snake position +// this method allows changing the horizontal snake position +void Snake::set_snake_posX(int snake_posX) {_snake_posX = snake_posX;} + +// this method allows changing thevertical snake position void Snake::set_snake_posY(int snake_posY) {_snake_posY = snake_posY;} -// accessors +// this method gets the horizontal position of snake int Snake::get_snake_posX() { return _snake_posX; } + +// this method gets the vertical position of snake int Snake::get_snake_posY() { return _snake_posY; } -void Snake::set_food_posX(int food_posX) {_food_posX = food_posX;} // mutators allow changing snake position +// this method allows changing the horizontal position of food +void Snake::set_food_posX(int food_posX) {_food_posX = food_posX;} + +// this method allows changing the vertical position of food void Snake::set_food_posY(int food_posY) {_food_posY = food_posY;} // accessors +// this method gets the food horizontal position int Snake::get_food_posX() { return _food_posX; } + +// this method gets the food vertical position int Snake::get_food_posY() { return _food_posY; } void Snake::draw_food(N5110 &lcd) { - lcd.drawRect(_food_posX,_food_posY,4,4,FILL_BLACK); + lcd.drawRect(_food_posX,_food_posY,4,4,FILL_BLACK); // draw food } \ No newline at end of file
diff -r a7ea33e6bd82 -r aedca0082855 Snake/Snake.h --- a/Snake/Snake.h Thu May 09 11:36:21 2019 +0000 +++ b/Snake/Snake.h Thu May 09 13:52:41 2019 +0000 @@ -5,25 +5,57 @@ #include "N5110.h" #include "Gamepad.h" +/** Snake Class + * @brief The class for drawing snake and determining snake position for snake game + * @author Daniel Crockford 201039580 + * @date 09 May 2019 + */ class Snake { public: - // constructor + /** Constructor */ Snake(); - // destructor + /** Deconstructor */ ~Snake(); + /** initialise snake */ void init(); + + /** draw the snake head + * @param N5110 class for controlling the lcd screen */ void draw_head(N5110 &lcd); - void set_snake_posX(int snake_posX); // mutators + + /** allows snake horizontal position to be set from outside + * @param value between 0 and 80 */ + void set_snake_posX(int snake_posX); + + /** allows snake vertical position to be set from outside + * @param value between 0 and 44 */ void set_snake_posY(int snake_posY); - int get_snake_posX(); //accessors + + /** get snake horizontal position */ + int get_snake_posX(); + + /** get snake vertical position*/ int get_snake_posY(); + + /** draw food + * @param N5110 class for controlling the lcd screen*/ void draw_food(N5110 &lcd); - void set_food_posX(int food_posX); // mutators + + /** allows food horizontal position to be set from outside + * @param value between 4 and 80 */ + void set_food_posX(int food_posX); + + /** allows food vertical position to be set from outside + * @param value between 4 and 40 */ void set_food_posY(int food_posY); - int get_food_posX(); //accessors + + /** get snake food horizontal position */ + int get_food_posX(); + + /** get food vertical position */ int get_food_posY(); private:
diff -r a7ea33e6bd82 -r aedca0082855 main.cpp --- a/main.cpp Thu May 09 11:36:21 2019 +0000 +++ b/main.cpp Thu May 09 13:52:41 2019 +0000 @@ -73,15 +73,13 @@ } // Protoype menu -void Menu() { - //engine.get_dir(gamepad); +void Menu() { game_speed = 0; lcd.clear(); lcd.printString("Select speed",0,0); lcd.printString("Slowest: X",0,2); lcd.printString("Fastest: B",0,3); lcd.refresh(); - while(game_speed == 0) { engine.get_dir(gamepad); if (engine.get_direction() == 2) { @@ -90,7 +88,6 @@ game_speed = 2; } } - if (game_speed == 1) { speed = 0.5; } else if (game_speed == 2) {