File content as of revision 8:32825d724856:

/* 
ELEC2645 Embedded Systems Project
School of Electronic & Electrical Engineering
University of Leeds
2019/20

Name: Simon Thackray Atkinson
Username: el18s2a   
Student ID Number: 201255483
Date: 05/03/2020
*/

///////// pre-processor directives ////////
#include "mbed.h"
#include "Gamepad.h"
#include "N5110.h"
#include "Bitmap.h"
#include "SnakeEngine.h"
#include "Snake.h"
#include "Apple.h"

#define SCORE 6
#define APPLE_SIZE 3
#define SNAKE_SPEED 1



/////////////// structs /////////////////
struct UserInput {
    Direction d;
    float mag;
};
/////////////// objects ///////////////
N5110 lcd;
Gamepad pad;
SnakeEngine snake;


///////////// prototypes ///////////////
void init();
void update_game(UserInput input);
void render();
void welcome();

///////////// functions ////////////////
int main()
{

    int fps = 6;  // frames per second

    init();     // initialise and then display welcome screen...
    welcome();  // waiting for the user to start
    
    render();  // first draw the initial frame 
    wait(1.0f/fps);  // and wait for one frame period


    // game loop - read input, update the game state and render the display
    while (1) {
        snake.read_input(pad);
        snake.update(pad);
        render();
        wait(1.0f/fps);
    }
}

// initialies all classes and libraries
void init()
{
    // need to initialise LCD and Gamepad 
    lcd.init();
    pad.init();
}

// this function draws each frame on the LCD
void render()
{
    // clear screen, re-draw and refresh
    lcd.clear();  
    snake.draw(lcd);
    lcd.refresh();
}

// simple splash screen displayed on start-up
void welcome() {
    pad.led(3,1);  // Only Show Green LEDS
    pad.led(6,1);  //       
    lcd.clear();
       lcd.clear(); // we need to clear the screen first
   lcd.printString("    Author   ",0,1);  
   lcd.printString("Simon Atkinson",0,2); 
   lcd.printString("   201255483  ",0,3); 
   lcd.printString(" Uni of Leeds ",0,4); 
   lcd.refresh(); // need to refresh display after setting pixels or writing strings
           wait(1.0); // we don't want this screen on long!
               lcd.clear();
    lcd.printString("  Welcome to  ",0,1);  
    lcd.printString("    Snake!   ",0,2); 
    lcd.printString("  Press Start ",0,4);
    lcd.refresh();
    lcd.clear();
    while ( pad.start_pressed() == false) {
     }
     
    }




/*


bool endGame;
int borderW, borderH, appleX, appleY, snakeX, snakeY, score; 
enum eDirection {STOP = 0, LEFT, RIGHT, UP, DOWN};
eDirection dir;

         

void setup()                          // Sets up the values for the game    
{
    srand(time(0));                   // Seed the generator, give it a starting value
    endGame = false;                  // Sets the game as not finished
    dir = STOP;                       // When the game starts the snake isn't moving
    
    borderW = WIDTH;                  // Border width and height
    borderH = HEIGHT-8;               // Uses - 8 so we can get a line of text for the score
   
    snakeX = borderW/2;               // Snake Starts at Center
    snakeY = borderH/2+8;
   
    appleX = rand() % borderW;        // Apple position 
    appleY = rand() % borderH;      
    
    score = 0;                        // Sets the initial Score to 0
 
}

void display()   // Deals with the fuctions of the display
 {
        lcd.clear();   
        lcd.drawRect(0,8,borderW,borderH,FILL_TRANSPARENT);      // Draws a border showing the game area
        
        char buffer[14];                                         // each character is 6 pixels wide, screen is 84 pixels (84/6 = 14)
        int ScoreLength = sprintf(buffer,"Score:%2d",score);     // Shows the player the score
        if (ScoreLength <= 14) 
            lcd.printString(buffer,WIDTH/2-25,0);                // centers the score
            
            
   lcd.drawRect(snakeX,snakeY,5,5,FILL_BLACK);                   // Draws the initial snake head 
   
   
   lcd.drawCircle(appleX,appleY,2,FILL_BLACK);                   // Draws a circle representing an apple
            
  lcd.refresh();
     
     
     }   

void control()   // Reads the controls
                    {
            if (pad.A_pressed()){
                        dir = RIGHT;
                        }
             if (pad.B_pressed()){
                        dir = DOWN;
                        }
             if (pad.X_pressed()){
                        dir = UP;
                        }
             if (pad.Y_pressed()){
                        dir = LEFT;
                        }       
             if (pad.Y_pressed()){
                        dir = LEFT;
                        }  
            if (pad.start_pressed()){   // Stops the Movement
                        dir = STOP;
                        } 
                         
                           
 
}

void gameplay() {

   // Change the direction the snake goes dependant on the input 
    
    if (dir == UP) {
                 --snakeY;
                 }
    if   (dir == DOWN) {
                 ++snakeY;
                 }  
    if   (dir == LEFT) {
                --snakeX;
                 }  
    if   (dir == RIGHT) {
                ++snakeX;
                 }  
  
                                                        
                                
}


void menu() {
         while (1) { 
     
     pad.led(3,1);  // Only Show Green LEDS
     pad.led(6,1);  //
         
         // Splash Screen Info
   lcd.clear(); // we need to clear the screen first
   lcd.printString("    Author   ",0,1);  
   lcd.printString("Simon Atkinson",0,2); 
   lcd.printString("   201255483  ",0,3); 
   lcd.printString(" Uni of Leeds ",0,4); 
   lcd.refresh(); // need to refresh display after setting pixels or writing strings
           wait(1.0); // we don't want this screen on long!
            
       // main menu screen no interaction yet pressing start won't do anything but its a start if you pardon the pun!     
    lcd.clear();
    lcd.printString("  Welcome to  ",0,1);  
    lcd.printString("    Snake!   ",0,2); 
    lcd.printString("  Press Start ",0,4);
    lcd.refresh();
    wait(45.0);
    lcd.clear();
            
    // Easter Egg time! 
    pad.led(3,0);  // Turn Green LEDs Off
     pad.led(6,0);  //
     pad.led(2,1);  // Turn on Amber LEDs 
     pad.led(5,1);  //
    lcd.printString("  Do you need  ",0,1);  
    lcd.printString("  more time?   ",0,2); 
    lcd.printString("  Grandpa! ",0,3);
    lcd.refresh();
    wait(5.0);
               
    //returns back to normal welcome screen           
    lcd.clear();
        pad.led(3,1);  // Turn Green LEDs On
     pad.led(6,1);  //
     pad.led(2,0);  // Turn  off Amber LEDs 
     pad.led(5,0);  //
    lcd.printString("  Welcome to  ",0,1);  
    lcd.printString("    Snake!   ",0,2); 
    lcd.printString("  Press Start ",0,4);
    lcd.refresh();  
} 
    }

void ingame() {
    
    while (!endGame)
{
    display();
    control();
    gameplay();
    wait (0.06);                       // Sets how often the while loop functions can adjust the speed of the game!
}
    
    
    }




///////////// functions ////////////////
int main()
{
//initialise Display and gamepad
    lcd.init();                       // Turns the LCD display on
    pad.init();                       // Turns the gamepad on
    pad.leds_off();                   // Turns the LEDs OFF

// Main Game Section

setup();



 if (pad.start_pressed()){ 
  menu();
} 
 
 else {
   ingame();  

}

} */