File content as of revision 9:d1d79d4ee673:

#include "SnakevsBlock.h"

SnakevsBlock::SnakevsBlock()
{

}

SnakevsBlock::~SnakevsBlock()
{

}

void SnakevsBlock::init()
{
    //The snake length configuration and all the other initial information passing will be done here
    length=3;
    foodbuff=0; 
}



void SnakevsBlock::read_input(Gamepad &pad)
{
    _d = pad.get_direction(); //Obtains Direction pushed towards on Joystick.
    _mag = pad.get_mag(); //Obtains Magnitude of Joystick.
}

void SnakevsBlock::draw(N5110 &lcd, Gamepad &pad)
{
    _s.draw(lcd, length); //Draws the Snake.     //Make these snake buffs relative to the snake drops which in turn relate to the game speed
    if(foodbuff >=0)  {
        _f.draw(lcd); //Draws the first food.
        if(foodbuff >=50)  {
            _ff.draw(lcd); //Draws the second food.
            if(foodbuff >=80) {
                _fff.draw(lcd); //Draws the third food.
            }
        }
        foodbuff +=1;
        if(foodbuff == 90)  {
            foodbuff = 90;
        }
    }
    
    //Code to print length on game screen.
    char bufferscore[14];
    sprintf(bufferscore,"%d",length);
    lcd.printString(bufferscore,1,0);
    
            if(pad.check_event(Gamepad::BACK_PRESSED)){ //Waits for Back button to be pressed.
            
                NVIC_SystemReset(); //Software Reset.
                
            }
        
    
}


void SnakevsBlock::update(Gamepad &pad) //Updates objects on screen.
{
    _s.update(_d,_mag, length);
    _f.update();
    _ff.update();
    _fff.update(); 
    CheckSnakeFoodCollision(pad); //Function checks for when the snake collides with it's food.
}

void SnakevsBlock::get_pos()
{
    Vector2D snake_pos = _s.get_pos(length);
    //printf("player pos = %f %f \n", player_pos.x, player_pos.y); //top left of player sprite
    // 81.000000 0.000000 top right
    // 0.000000 0.000000 is top left
    // 81.000000 45.000000 bottom right
    snakex = snake_pos.x;
    snakey = snake_pos.y;
    //printf("snakexy in GAME = %d %d \n", snakex, snakey);
}   
    

void SnakevsBlock::CheckSnakeFoodCollision(Gamepad &pad)
    {
        //Obtains all required coordinates.
        
        
        Vector2D f_pos = _f.get_pos();
        Vector2D ff_pos = _ff.get_pos();
        Vector2D fff_pos = _fff.get_pos();
        Vector2D snake_pos = _s.get_pos(length);
        
        //If statements check if the snake sprite has collided with any
        //of the three food sprites, if so then the food location is reset and
        //length of the snake is increased using the length variable.
         
    if (
        ((snake_pos.y == f_pos.y) ||
        (snake_pos.y == f_pos.y + 1) ||
        (snake_pos.y == f_pos.y + 2) ||
        (snake_pos.y + 1== f_pos.y) ||
        (snake_pos.y  + 1== f_pos.y + 1) ||
        (snake_pos.y  + 1== f_pos.y + 2) ||
        (snake_pos.y + 2 == f_pos.y) ||
        (snake_pos.y + 2 == f_pos.y + 1) ||
        (snake_pos.y + 2 == f_pos.y + 2)) &&
        ((snake_pos.x == f_pos.x) ||
        (snake_pos.x == f_pos.x + 1) ||
        (snake_pos.x == f_pos.x + 2) ||
        (snake_pos.x + 1 == f_pos.x) ||
        (snake_pos.x + 1== f_pos.x + 1) ||
        (snake_pos.x + 1 == f_pos.x + 2) ||
        (snake_pos.x + 2 == f_pos.x) ||
        (snake_pos.x + 2 == f_pos.x + 1) ||
        (snake_pos.x + 2 == f_pos.x + 2))
    ) {
        
        //printf("snake feast working \n");
        //audio feedback
        pad.tone(1000.0,0.1);
        f_pos.x = rand() % 82;
        f_pos.y = 0;
        
        length+=1;
        
    }
    
    if (
        ((snake_pos.y == ff_pos.y) ||
        (snake_pos.y == ff_pos.y + 1) ||
        (snake_pos.y == ff_pos.y + 2) ||
        (snake_pos.y + 1== ff_pos.y) ||
        (snake_pos.y  + 1== ff_pos.y + 1) ||
        (snake_pos.y  + 1== ff_pos.y + 2) ||
        (snake_pos.y + 2 == ff_pos.y) ||
        (snake_pos.y + 2 == ff_pos.y + 1) ||
        (snake_pos.y + 2 == ff_pos.y + 2)) &&
        ((snake_pos.x == ff_pos.x) ||
        (snake_pos.x == ff_pos.x + 1) ||
        (snake_pos.x == ff_pos.x + 2) ||
        (snake_pos.x + 1 == ff_pos.x) ||
        (snake_pos.x + 1== ff_pos.x + 1) ||
        (snake_pos.x + 1 == ff_pos.x + 2) ||
        (snake_pos.x + 2 == ff_pos.x) ||
        (snake_pos.x + 2 == ff_pos.x + 1) ||
        (snake_pos.x + 2 == ff_pos.x + 2))
    ) {
        
        //printf("snake feast working \n");
        // audio feedback
        pad.tone(1000.0,0.1);
        ff_pos.x = rand() % 82;
        ff_pos.y = 0;
        
        length+=1;
        
    }
    
    if (
        ((snake_pos.y == fff_pos.y) ||
        (snake_pos.y == fff_pos.y + 1) ||
        (snake_pos.y == fff_pos.y + 2) ||
        (snake_pos.y + 1== fff_pos.y) ||
        (snake_pos.y  + 1== fff_pos.y + 1) ||
        (snake_pos.y  + 1== fff_pos.y + 2) ||
        (snake_pos.y + 2 == fff_pos.y) ||
        (snake_pos.y + 2 == fff_pos.y + 1) ||
        (snake_pos.y + 2 == fff_pos.y + 2)) &&
        ((snake_pos.x == fff_pos.x) ||
        (snake_pos.x == fff_pos.x + 1) ||
        (snake_pos.x == fff_pos.x + 2) ||
        (snake_pos.x + 1 == fff_pos.x) ||
        (snake_pos.x + 1== fff_pos.x + 1) ||
        (snake_pos.x + 1 == fff_pos.x + 2) ||
        (snake_pos.x + 2 == fff_pos.x) ||
        (snake_pos.x + 2 == fff_pos.x + 1) ||
        (snake_pos.x + 2 == fff_pos.x + 2))
    ) {
        
        //printf("snake feast working \n");
        // audio feedback
        pad.tone(1000.0,0.1);
        fff_pos.x = rand() % 82;
        fff_pos.y = 0;
        
        length+=1;
        
    }


    _f.set_pos(f_pos);
    _ff.set_pos(ff_pos);
    _fff.set_pos(fff_pos);
    
    }