XJEL2645 (19/20) / Mbed 2 deprecated el17hy

Yang Hongxiao 201199678

Dependencies:   mbed

Bullet.cpp@1:a6ead8050c23, 2020-05-14 (annotated)

Committer:
YHX
Date:
Thu May 14 17:00:34 2020 +0000
Revision:
1:a6ead8050c23
Yang Hongxiao; el17hy; 201199678

Who changed what in which revision?

UserRevisionLine numberNew contents of line
YHX 1:a6ead8050c23 1 #include "Bullet.h"
YHX 1:a6ead8050c23 2
YHX 1:a6ead8050c23 3 Bullet::Bullet()
YHX 1:a6ead8050c23 4 {
YHX 1:a6ead8050c23 5
YHX 1:a6ead8050c23 6 }
YHX 1:a6ead8050c23 7
YHX 1:a6ead8050c23 8 Bullet::~Bullet()
YHX 1:a6ead8050c23 9 {
YHX 1:a6ead8050c23 10
YHX 1:a6ead8050c23 11 }
YHX 1:a6ead8050c23 12
YHX 1:a6ead8050c23 13 void Bullet::init(int r,int vv)
YHX 1:a6ead8050c23 14 {
YHX 1:a6ead8050c23 15 _r = r;
YHX 1:a6ead8050c23 16 srand(time(NULL));
YHX 1:a6ead8050c23 17 _x = rand()%(84-_r); //the inintial ball fall from the top
YHX 1:a6ead8050c23 18 _y = 0;
YHX 1:a6ead8050c23 19
YHX 1:a6ead8050c23 20 srand(time(NULL));
YHX 1:a6ead8050c23 21 int direction = rand()%4; //the direction of the ball has four possibility
YHX 1:a6ead8050c23 22
YHX 1:a6ead8050c23 23 // 4 possibilities. Get random modulo and set velocities accordingly
YHX 1:a6ead8050c23 24 if (direction == 0) {
YHX 1:a6ead8050c23 25 _velocity.x = vv;
YHX 1:a6ead8050c23 26 _velocity.y = vv;
YHX 1:a6ead8050c23 27 } else if (direction == 1) {
YHX 1:a6ead8050c23 28 _velocity.x = vv;
YHX 1:a6ead8050c23 29 _velocity.y = -vv;
YHX 1:a6ead8050c23 30 } else if (direction == 2) {
YHX 1:a6ead8050c23 31 _velocity.x = vv;
YHX 1:a6ead8050c23 32 _velocity.y = vv;
YHX 1:a6ead8050c23 33 } else {
YHX 1:a6ead8050c23 34 _velocity.x = -vv;
YHX 1:a6ead8050c23 35 _velocity.y = -vv;
YHX 1:a6ead8050c23 36 }
YHX 1:a6ead8050c23 37 }
YHX 1:a6ead8050c23 38
YHX 1:a6ead8050c23 39 void Bullet::draw(N5110 &lcd)
YHX 1:a6ead8050c23 40 {
YHX 1:a6ead8050c23 41 lcd.drawRect(_x,_y,_r,_r,FILL_BLACK); //draw the ball
YHX 1:a6ead8050c23 42 }
YHX 1:a6ead8050c23 43
YHX 1:a6ead8050c23 44 void Bullet::update()
YHX 1:a6ead8050c23 45 {
YHX 1:a6ead8050c23 46 _x += _velocity.x;
YHX 1:a6ead8050c23 47 _y += _velocity.y;
YHX 1:a6ead8050c23 48 }
YHX 1:a6ead8050c23 49
YHX 1:a6ead8050c23 50 void Bullet::set_velocity(Vector2D v)
YHX 1:a6ead8050c23 51 {
YHX 1:a6ead8050c23 52 _velocity.x = v.x;
YHX 1:a6ead8050c23 53 _velocity.y = v.y;
YHX 1:a6ead8050c23 54 }
YHX 1:a6ead8050c23 55
YHX 1:a6ead8050c23 56 Vector2D Bullet::get_velocity()
YHX 1:a6ead8050c23 57 {
YHX 1:a6ead8050c23 58 Vector2D v = {_velocity.x,_velocity.y};
YHX 1:a6ead8050c23 59 return v;
YHX 1:a6ead8050c23 60 }
YHX 1:a6ead8050c23 61
YHX 1:a6ead8050c23 62 Vector2D Bullet::get_pos()
YHX 1:a6ead8050c23 63 {
YHX 1:a6ead8050c23 64 Vector2D p = {_x,_y};
YHX 1:a6ead8050c23 65 return p;
YHX 1:a6ead8050c23 66 }
YHX 1:a6ead8050c23 67
YHX 1:a6ead8050c23 68 void Bullet::set_pos(Vector2D p)
YHX 1:a6ead8050c23 69 {
YHX 1:a6ead8050c23 70 _x = p.x;
YHX 1:a6ead8050c23 71 _y = p.y;
YHX 1:a6ead8050c23 72 }