Liting Liu / Mbed 2 deprecated el17ll

demo

Dependencies:   mbed Gamepad N5110

foods/foods.cpp@1:7b5a843acc05, 2020-05-14 (annotated)

Committer:
Ting12138
Date:
Thu May 14 13:00:19 2020 +0000
Revision:
1:7b5a843acc05
Parent:
0:ba32cfe0051e 
homework

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Ting12138 0:ba32cfe0051e 1 #include "foods.h"
Ting12138 0:ba32cfe0051e 2
Ting12138 0:ba32cfe0051e 3 foods::foods()
Ting12138 0:ba32cfe0051e 4 {
Ting12138 0:ba32cfe0051e 5
Ting12138 0:ba32cfe0051e 6 }
Ting12138 0:ba32cfe0051e 7
Ting12138 0:ba32cfe0051e 8 foods::~foods()
Ting12138 0:ba32cfe0051e 9 {
Ting12138 0:ba32cfe0051e 10
Ting12138 0:ba32cfe0051e 11 }
Ting12138 0:ba32cfe0051e 12
Ting12138 0:ba32cfe0051e 13 void foods::init(int x,int size,int velocity) {
Ting12138 0:ba32cfe0051e 14 _x = x; // foods x beginning postion and updating position
Ting12138 0:ba32cfe0051e 15 _size = size; // the food's size
Ting12138 0:ba32cfe0051e 16 int uncertainty = rand() % (48 - _size * 2);
Ting12138 0:ba32cfe0051e 17 _y = _size + uncertainty; // the starting vertical position
Ting12138 0:ba32cfe0051e 18 _velocity = velocity; // sliding velocity
Ting12138 0:ba32cfe0051e 19 }
Ting12138 0:ba32cfe0051e 20
Ting12138 0:ba32cfe0051e 21 void foods::draw(N5110 &lcd) {
Ting12138 0:ba32cfe0051e 22 lcd.drawCircle(_x,_y,_size,FILL_TRANSPARENT); // draw foods on lcd
Ting12138 0:ba32cfe0051e 23 }
Ting12138 0:ba32cfe0051e 24
Ting12138 0:ba32cfe0051e 25 void foods::update() {
Ting12138 0:ba32cfe0051e 26 _x -= _velocity; // the foods is moving leftward from the right screen
Ting12138 0:ba32cfe0051e 27 }
Ting12138 0:ba32cfe0051e 28
Ting12138 0:ba32cfe0051e 29 void foods::replace() {
Ting12138 0:ba32cfe0051e 30 _x = 149; // replace to the right side when the stone exits to the left side of the screen
Ting12138 0:ba32cfe0051e 31 int uncertainty = rand() % (45 - (_size * 2));
Ting12138 0:ba32cfe0051e 32 _y = 1 + _size + uncertainty; // regenerate the vertical position for the stone
Ting12138 0:ba32cfe0051e 33 }
Ting12138 0:ba32cfe0051e 34
Ting12138 0:ba32cfe0051e 35 Vector2D foods::get_pos() { // get position for collision logic function
Ting12138 0:ba32cfe0051e 36 Vector2D p = {_x,_y};
Ting12138 0:ba32cfe0051e 37 return p;
Ting12138 0:ba32cfe0051e 38 }