zhenye yang / Mbed 2 deprecated el17zy

Yang Zhenye 201199680

Dependencies:   mbed

Ball/Ball.cpp@1:74f525027af6, 2020-04-28 (annotated)

Committer:
yangzhenye
Date:
Tue Apr 28 10:21:42 2020 +0000
Revision:
1:74f525027af6
Child:
2:baca89f466bc
Ball model

Who changed what in which revision?

UserRevisionLine numberNew contents of line
yangzhenye 1:74f525027af6 1 #include "Ball.h"
yangzhenye 1:74f525027af6 2
yangzhenye 1:74f525027af6 3 Ball::Ball()
yangzhenye 1:74f525027af6 4 {
yangzhenye 1:74f525027af6 5
yangzhenye 1:74f525027af6 6 }
yangzhenye 1:74f525027af6 7
yangzhenye 1:74f525027af6 8 Ball::~Ball()
yangzhenye 1:74f525027af6 9 {
yangzhenye 1:74f525027af6 10
yangzhenye 1:74f525027af6 11 }
yangzhenye 1:74f525027af6 12
yangzhenye 1:74f525027af6 13 void Ball::init(int size,int speed)
yangzhenye 1:74f525027af6 14 {
yangzhenye 1:74f525027af6 15 _size = size;
yangzhenye 1:74f525027af6 16
yangzhenye 1:74f525027af6 17 _x = WIDTH/2 - _size/2;
yangzhenye 1:74f525027af6 18 _y = HEIGHT/2 - _size/2;
yangzhenye 1:74f525027af6 19
yangzhenye 1:74f525027af6 20 srand(time(NULL));
yangzhenye 1:74f525027af6 21 int direction = rand() % 4; // randomise initial direction.
yangzhenye 1:74f525027af6 22
yangzhenye 1:74f525027af6 23 // 4 possibilities. Get random modulo and set velocities accordingly
yangzhenye 1:74f525027af6 24 if (direction == 0) {
yangzhenye 1:74f525027af6 25 _velocity.x = speed;
yangzhenye 1:74f525027af6 26 _velocity.y = speed;
yangzhenye 1:74f525027af6 27 } else if (direction == 1) {
yangzhenye 1:74f525027af6 28 _velocity.x = speed;
yangzhenye 1:74f525027af6 29 _velocity.y = -speed;
yangzhenye 1:74f525027af6 30 } else if (direction == 2) {
yangzhenye 1:74f525027af6 31 _velocity.x = speed;
yangzhenye 1:74f525027af6 32 _velocity.y = speed;
yangzhenye 1:74f525027af6 33 } else {
yangzhenye 1:74f525027af6 34 _velocity.x = -speed;
yangzhenye 1:74f525027af6 35 _velocity.y = -speed;
yangzhenye 1:74f525027af6 36 }
yangzhenye 1:74f525027af6 37 }
yangzhenye 1:74f525027af6 38
yangzhenye 1:74f525027af6 39 void Ball::draw(N5110 &lcd)
yangzhenye 1:74f525027af6 40 {
yangzhenye 1:74f525027af6 41 lcd.drawRect(_x,_y,_size,_size,FILL_BLACK);
yangzhenye 1:74f525027af6 42 }
yangzhenye 1:74f525027af6 43
yangzhenye 1:74f525027af6 44 void Ball::update()
yangzhenye 1:74f525027af6 45 {
yangzhenye 1:74f525027af6 46 _x += _velocity.x;
yangzhenye 1:74f525027af6 47 _y += _velocity.y;
yangzhenye 1:74f525027af6 48 }
yangzhenye 1:74f525027af6 49
yangzhenye 1:74f525027af6 50 void Ball::set_velocity(Vector2D v)
yangzhenye 1:74f525027af6 51 {
yangzhenye 1:74f525027af6 52 _velocity.x = v.x;
yangzhenye 1:74f525027af6 53 _velocity.y = v.y;
yangzhenye 1:74f525027af6 54 }
yangzhenye 1:74f525027af6 55
yangzhenye 1:74f525027af6 56 Vector2D Ball::get_velocity()
yangzhenye 1:74f525027af6 57 {
yangzhenye 1:74f525027af6 58 Vector2D v = {_velocity.x,_velocity.y};
yangzhenye 1:74f525027af6 59 return v;
yangzhenye 1:74f525027af6 60 }
yangzhenye 1:74f525027af6 61
yangzhenye 1:74f525027af6 62 Vector2D Ball::get_pos()
yangzhenye 1:74f525027af6 63 {
yangzhenye 1:74f525027af6 64 Vector2D p = {_x,_y};
yangzhenye 1:74f525027af6 65 return p;
yangzhenye 1:74f525027af6 66 }
yangzhenye 1:74f525027af6 67
yangzhenye 1:74f525027af6 68 void Ball::set_pos(Vector2D p)
yangzhenye 1:74f525027af6 69 {
yangzhenye 1:74f525027af6 70 _x = p.x;
yangzhenye 1:74f525027af6 71 _y = p.y;
yangzhenye 1:74f525027af6 72 }