File content as of revision 22:745b4d352183:

#include "Ball.h"

// nothing doing in the constructor and destructor
Ball::Ball()
{

}

Ball::~Ball()
{

}

void Ball::init()
{
    _circy = 5;
    _circx = 5;
    _speed = 1;

}

void Ball::draw(N5110 &lcd)
{
    // VERY SIMPLE CODE IN WHCIH I DREW THE BALL OF THE MAZE.
    lcd.drawCircle(_circx,_circy,2,FILL_BLACK);
}

void Ball::update(Direction dir)
{
    if (dir == N) {
        _circy -= _speed;
    } else if (dir == S) {
        _circy += _speed;
    }

    if (dir == W) {
        _circx -= _speed;
    } else if (dir == E) {
        _circx += _speed;
    }

    // THIS CODE IS NEEDED TO MAKE SURE THAT THE BALL DOES NOT OFF THE DIMENSIONS OF THE LCD SCREEN.
    if (_circy < 3) {
        _circy = 3;
    }

    if (_circy > HEIGHT - 4) {
        _circy = HEIGHT - 4;
    }

    if (_circx < 3) {
        _circx = 3;
    }

}

Vector2D Ball::get_pos() {
    Vector2D p = {_circx,_circy};
    return p;    
}

void Ball::check_wall_collision(Gamepad &pad)
{
    // FOR LOOP TO STOP BALL FROM GOING THROUGH WALLS
    for (int i = 0; i <= 12; i++) {
        //printf(" Stage  %d\n", i);

        if(i == 0) {    // SET VARIABLES FOR EACH WALL
            _a = 10;
            _b = 0;
            _c = 1;
            _d = 39;

        } else if (i == 1) {
            _a = 18;
            _b = 32;
            _c = 1;
            _d = 15;
        }

        else if (i == 2) {
            _a = 36;
            _b = 25;
            _c = 1;
            _d = 25;
        }

        else if(i == 3) {
            _a = 45;
            _b = 0;
            _c = 1;
            _d = 11;
        }

        else if (i == 4) {
            _a = 45;
            _b = 18;
            _c = 1;
            _d = 30;
        }

        else if (i == 5) {
            _a = 55;
            _b = 6;
            _c = 1;
            _d = 45;
        }

        else if (i == 6) {
            _a = 64;
            _b = 0;
            _c = 1;
            _d = 20;
        }

        else if (i == 7) {
            _a = 64;
            _b = 27;
            _c = 1;
            _d = 13;
        }

        else if (i == 8) {
            _a = 72;
            _b = 10;
            _c = 1;
            _d = 30;
        }

        else if (i == 9) {
            _a = 18;
            _b = 25;
            _c = 18;
            _d = 1;
        } else if (i == 10) {
            _a = 18;
            _b = 18;
            _c = 27;
            _d = 1;
        }

        else if (i == 11) {
            _a = 18;
            _b = 10;
            _c = 27;
            _d = 1;
        }

        else if (i == 12) {
            _a = 64;
            _b = 40;
            _c = 20;
            _d = 1;
        }


        if (
            (_circy >= _b - 2) && //top
            (_circy <= 1 + _b + _d) && //bottom
            (_circx >= _a - 2) && //left
            (_circx <= _a + _c + 1)  //right
        ) {
            printf("COLLISION");
            //left
            if (_circx <= _a - 2) {
                if(_circx >= _a - 3) {
                    _circx = _a - 3;
                }
            }

            //right
            if(_circx >= _a + 2) {
                if(_circx <= _a + 3) {
                    _circx = _a + 3;
                }
            }

            //top
            if(_circy <= _b - 2) {
                if(_circy >= _b - 3) {
                    _circy = _b - 3;
                }
            }

            //bottom
            if(_circy >= _b + _d) {
                if(_circy <= 2 + _b + _d) {
                    (_circy = 2 + _b + _d);
                }
            }
        }
    }
    
    
    // WHEN THE BALL REACHES THE Y-AXIS NEEDED WHICH IS 27, THEN THE JOYSTICK FREELY MOVE THE BALL RIGHT THROUGH THE OPENING OF THE SMAZE WALL,
    // HOWEVER, IF THE BALL IS NOT EQUAL TO THE Y-AXIS NEEDED, THEN THE BALL MUST BE RESTRICTED TO MOVING SO THAT IT DOES NOT PASS THE WALLS.
    if (_circy == 27) {
        if (_circx > WIDTH) {
            _circx = WIDTH;
        }
    } else if (_circx > 80) {
        _circx = 80;
    }
}