zhenye yang / Mbed 2 deprecated el17zy

Yang Zhenye 201199680

Dependencies:   mbed

Ball/Ball.cpp@2:baca89f466bc, 2020-04-30 (annotated)

Committer:
yangzhenye
Date:
Thu Apr 30 07:08:09 2020 +0000
Revision:
2:baca89f466bc
Parent:
1:74f525027af6
Child:
5:fcad75e9b9e1
complete menu and improve roony

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 2:baca89f466bc 9 { for(i = 20; i >0; i--) {
yangzhenye 2:baca89f466bc 10 _x = 40 - _speed
yangzhenye 2:baca89f466bc 11 _y = 40 - 0.5*_speed
yangzhenye 2:baca89f466bc 12 if (_x < 0);
yangzhenye 2:baca89f466bc 13 _x =0;
yangzhenye 2:baca89f466bc 14 for (i = 20; i >0; i--) {
yangzhenye 2:baca89f466bc 15 _x = 0 + _speed
yangzhenye 2:baca89f466bc 16
yangzhenye 1:74f525027af6 17
yangzhenye 1:74f525027af6 18 }
yangzhenye 1:74f525027af6 19
yangzhenye 2:baca89f466bc 20 void shoot() {
yangzhenye 2:baca89f466bc 21
yangzhenye 1:74f525027af6 22 void Ball::init(int size,int speed)
yangzhenye 1:74f525027af6 23 {
yangzhenye 1:74f525027af6 24 _size = size;
yangzhenye 1:74f525027af6 25
yangzhenye 1:74f525027af6 26 _x = WIDTH/2 - _size/2;
yangzhenye 1:74f525027af6 27 _y = HEIGHT/2 - _size/2;
yangzhenye 1:74f525027af6 28
yangzhenye 1:74f525027af6 29 srand(time(NULL));
yangzhenye 1:74f525027af6 30 int direction = rand() % 4; // randomise initial direction.
yangzhenye 1:74f525027af6 31
yangzhenye 1:74f525027af6 32 // 4 possibilities. Get random modulo and set velocities accordingly
yangzhenye 1:74f525027af6 33 if (direction == 0) {
yangzhenye 1:74f525027af6 34 _velocity.x = speed;
yangzhenye 1:74f525027af6 35 _velocity.y = speed;
yangzhenye 1:74f525027af6 36 } else if (direction == 1) {
yangzhenye 1:74f525027af6 37 _velocity.x = speed;
yangzhenye 1:74f525027af6 38 _velocity.y = -speed;
yangzhenye 1:74f525027af6 39 } else if (direction == 2) {
yangzhenye 1:74f525027af6 40 _velocity.x = speed;
yangzhenye 1:74f525027af6 41 _velocity.y = speed;
yangzhenye 1:74f525027af6 42 } else {
yangzhenye 1:74f525027af6 43 _velocity.x = -speed;
yangzhenye 1:74f525027af6 44 _velocity.y = -speed;
yangzhenye 1:74f525027af6 45 }
yangzhenye 1:74f525027af6 46 }
yangzhenye 1:74f525027af6 47
yangzhenye 1:74f525027af6 48 void Ball::draw(N5110 &lcd)
yangzhenye 1:74f525027af6 49 {
yangzhenye 1:74f525027af6 50 lcd.drawRect(_x,_y,_size,_size,FILL_BLACK);
yangzhenye 1:74f525027af6 51 }
yangzhenye 1:74f525027af6 52
yangzhenye 1:74f525027af6 53 void Ball::update()
yangzhenye 1:74f525027af6 54 {
yangzhenye 1:74f525027af6 55 _x += _velocity.x;
yangzhenye 1:74f525027af6 56 _y += _velocity.y;
yangzhenye 1:74f525027af6 57 }
yangzhenye 1:74f525027af6 58
yangzhenye 1:74f525027af6 59 void Ball::set_velocity(Vector2D v)
yangzhenye 1:74f525027af6 60 {
yangzhenye 1:74f525027af6 61 _velocity.x = v.x;
yangzhenye 1:74f525027af6 62 _velocity.y = v.y;
yangzhenye 1:74f525027af6 63 }
yangzhenye 1:74f525027af6 64
yangzhenye 1:74f525027af6 65 Vector2D Ball::get_velocity()
yangzhenye 1:74f525027af6 66 {
yangzhenye 1:74f525027af6 67 Vector2D v = {_velocity.x,_velocity.y};
yangzhenye 1:74f525027af6 68 return v;
yangzhenye 1:74f525027af6 69 }
yangzhenye 1:74f525027af6 70
yangzhenye 1:74f525027af6 71 Vector2D Ball::get_pos()
yangzhenye 1:74f525027af6 72 {
yangzhenye 1:74f525027af6 73 Vector2D p = {_x,_y};
yangzhenye 1:74f525027af6 74 return p;
yangzhenye 1:74f525027af6 75 }
yangzhenye 1:74f525027af6 76
yangzhenye 1:74f525027af6 77 void Ball::set_pos(Vector2D p)
yangzhenye 1:74f525027af6 78 {
yangzhenye 1:74f525027af6 79 _x = p.x;
yangzhenye 1:74f525027af6 80 _y = p.y;
yangzhenye 1:74f525027af6 81 }