Engine.h

00001 #include "mbed.h"
00002 #include "N5110.h"
00003 #include "Gamepad.h"
00004 #include "Snek.h"
00005 #include "Food.h"
00006 
00007 /** The Game Engine class
00008 * @brief Handles all failure states and game drawing
00009 * @author Andrew J. Moore
00010 * @date May, 2018
00011 */
00012 
00013 class Engine
00014 {
00015 
00016 public:
00017 
00018     /** Constructor */
00019     Engine();
00020 
00021     /** Destructor */
00022     ~Engine();
00023 
00024     /** Initialisation function   */
00025     void init();
00026 
00027     /** Reads and stores the current inputs from the gamepad
00028     * @param the current state of the gamepad (Gamepad)
00029     */
00030     void read_input(Gamepad &pad);
00031 
00032     /** Updates the current game state
00033     * @param the gamepad's functions as it is needed to use the speaker (Gamepad)
00034     */
00035     void update(Gamepad &pad);
00036 
00037     /** Draws the current state of the game
00038     * @param the LCD so that it can be drawn to (N5110)
00039     */
00040     void draw(N5110 &lcd);
00041 
00042     /** Applies a splash screen to signify a game over state has been reached
00043     * @param the LCD so that it can be drawn to (N5110)
00044     */
00045     void gameOverScreen(N5110 &lcd);
00046 
00047     /** Gets the current score
00048     * @return the current score
00049     */
00050     float getScore();
00051 
00052     /** Gets the current game state
00053     * @return the value of _gameOver
00054     */
00055     bool getGameOver();
00056 
00057     /** Sets the current level
00058     * @param the level to be set to (int)
00059     */
00060     void setLvl(int _levelToSet);
00061 
00062 private:
00063 
00064     //Private Variables
00065     int _score;
00066     Direction _d;
00067     int _grid[22][22];
00068     Snek _solid; //Named after Metal Gear Solid character Solid Snake to reduce confusion when debugging
00069     Food _noodles; //Common foodstuffs in MGS, once again to reduce confusion
00070     bool _gameOver;
00071     int _lvl;
00072 
00073     //Private Methods
00074     string convertString(int a);
00075     void loadLvl();
00076     void lvlOne();
00077     void lvlTwo();
00078     void lvlThree();
00079     bool checkFood();
00080     void growSnake();
00081     void checkGameOverAndSetGrid();
00082 
00083     //Testing Methods
00084     void gameTest();
00085     bool snakeTest();
00086     bool foodTest();
00087 };