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Dependencies:   mbed

Ball/Ball.cpp@0:19e5a063d7ea, 2019-05-09 (annotated)

Committer:
fusihui
Date:
Thu May 09 04:28:26 2019 +0000
Revision:
0:19e5a063d7ea
pin game

Who changed what in which revision?

UserRevisionLine numberNew contents of line
fusihui 0:19e5a063d7ea 1 #include "Ball.h"
fusihui 0:19e5a063d7ea 2
fusihui 0:19e5a063d7ea 3 Ball::Ball()
fusihui 0:19e5a063d7ea 4 {
fusihui 0:19e5a063d7ea 5
fusihui 0:19e5a063d7ea 6 }
fusihui 0:19e5a063d7ea 7
fusihui 0:19e5a063d7ea 8 Ball::~Ball()
fusihui 0:19e5a063d7ea 9 {
fusihui 0:19e5a063d7ea 10
fusihui 0:19e5a063d7ea 11 }
fusihui 0:19e5a063d7ea 12
fusihui 0:19e5a063d7ea 13 void Ball::init(int size, int speed)
fusihui 0:19e5a063d7ea 14 {
fusihui 0:19e5a063d7ea 15 _size = size;
fusihui 0:19e5a063d7ea 16
fusihui 0:19e5a063d7ea 17 _x = WIDTH/2 - _size/2;
fusihui 0:19e5a063d7ea 18 _y = HEIGHT/2 - _size/2;
fusihui 0:19e5a063d7ea 19
fusihui 0:19e5a063d7ea 20 _radius = _size/2;
fusihui 0:19e5a063d7ea 21
fusihui 0:19e5a063d7ea 22 // let the ball be fired randomly in one direction
fusihui 0:19e5a063d7ea 23 srand(time(NULL));
fusihui 0:19e5a063d7ea 24 int direction = rand() % 4;
fusihui 0:19e5a063d7ea 25 // 4 possiblities
fusihui 0:19e5a063d7ea 26 if (direction == 0) {
fusihui 0:19e5a063d7ea 27 _speed.x = speed;
fusihui 0:19e5a063d7ea 28 _speed.y = speed;
fusihui 0:19e5a063d7ea 29 } else if (direction == 1) {
fusihui 0:19e5a063d7ea 30 _speed.x = speed;
fusihui 0:19e5a063d7ea 31 _speed.y = -speed;
fusihui 0:19e5a063d7ea 32 } else if (direction == 2) {
fusihui 0:19e5a063d7ea 33 _speed.x = speed;
fusihui 0:19e5a063d7ea 34 _speed.y = speed;
fusihui 0:19e5a063d7ea 35 } else {
fusihui 0:19e5a063d7ea 36 _speed.x = -speed;
fusihui 0:19e5a063d7ea 37 _speed.y = -speed;
fusihui 0:19e5a063d7ea 38 }
fusihui 0:19e5a063d7ea 39
fusihui 0:19e5a063d7ea 40
fusihui 0:19e5a063d7ea 41 }
fusihui 0:19e5a063d7ea 42
fusihui 0:19e5a063d7ea 43 // draw pinball
fusihui 0:19e5a063d7ea 44 void Ball::draw(N5110 &lcd)
fusihui 0:19e5a063d7ea 45 {
fusihui 0:19e5a063d7ea 46 lcd.drawCircle(_x,_y,_radius,FILL_TRANSPARENT);
fusihui 0:19e5a063d7ea 47 }
fusihui 0:19e5a063d7ea 48
fusihui 0:19e5a063d7ea 49 void Ball::update()
fusihui 0:19e5a063d7ea 50 {
fusihui 0:19e5a063d7ea 51 _x += _speed.x;
fusihui 0:19e5a063d7ea 52 _y += _speed.y;
fusihui 0:19e5a063d7ea 53 }
fusihui 0:19e5a063d7ea 54
fusihui 0:19e5a063d7ea 55 void Ball::set_speed(Vector2D speed)
fusihui 0:19e5a063d7ea 56 {
fusihui 0:19e5a063d7ea 57 _speed.x = speed.x;
fusihui 0:19e5a063d7ea 58 _speed.y = speed.y;
fusihui 0:19e5a063d7ea 59 }
fusihui 0:19e5a063d7ea 60
fusihui 0:19e5a063d7ea 61 Vector2D Ball::get_speed()
fusihui 0:19e5a063d7ea 62 {
fusihui 0:19e5a063d7ea 63 Vector2D speed = {_speed.x,_speed.y};
fusihui 0:19e5a063d7ea 64 return speed;
fusihui 0:19e5a063d7ea 65 }
fusihui 0:19e5a063d7ea 66
fusihui 0:19e5a063d7ea 67 void Ball::set_position(Vector2D position)
fusihui 0:19e5a063d7ea 68 {
fusihui 0:19e5a063d7ea 69 _x = position.x;
fusihui 0:19e5a063d7ea 70 _y = position.y;
fusihui 0:19e5a063d7ea 71 }
fusihui 0:19e5a063d7ea 72
fusihui 0:19e5a063d7ea 73 Vector2D Ball::get_position()
fusihui 0:19e5a063d7ea 74 {
fusihui 0:19e5a063d7ea 75 Vector2D position = {_x,_y};
fusihui 0:19e5a063d7ea 76 return position;
fusihui 0:19e5a063d7ea 77 }
fusihui 0:19e5a063d7ea 78
fusihui 0:19e5a063d7ea 79
fusihui 0:19e5a063d7ea 80
fusihui 0:19e5a063d7ea 81