Musallam Bseiso / Enemy3

Nemesis game third enemy

Enemy3.cpp@4:bc02594c4902, 2017-05-03 (annotated)

Committer:
musallambseiso
Date:
Wed May 03 20:04:08 2017 +0000
Revision:
4:bc02594c4902
Parent:
3:ed7f3ee41871 
Removed redundant code, perfected Doxygen, added inline comments.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
musallambseiso 3:ed7f3ee41871 1 #include "Enemy3.h"
musallambseiso 3:ed7f3ee41871 2
musallambseiso 3:ed7f3ee41871 3 Enemy3::Enemy3()
musallambseiso 3:ed7f3ee41871 4 {
musallambseiso 3:ed7f3ee41871 5 }
musallambseiso 3:ed7f3ee41871 6
musallambseiso 3:ed7f3ee41871 7 Enemy3::~Enemy3()
musallambseiso 3:ed7f3ee41871 8 {
musallambseiso 4:bc02594c4902 9 }
musallambseiso 3:ed7f3ee41871 10
musallambseiso 4:bc02594c4902 11
musallambseiso 4:bc02594c4902 12 // Initializion method:
musallambseiso 3:ed7f3ee41871 13
musallambseiso 3:ed7f3ee41871 14 void Enemy3::init(int speed)
musallambseiso 3:ed7f3ee41871 15 {
musallambseiso 4:bc02594c4902 16 _x = rand() % 63 + 84; // Starting x position is randomized off screen. Creates a random ship generation.
musallambseiso 4:bc02594c4902 17 _y = 13; // Starting y position (fixed, third lane)
musallambseiso 3:ed7f3ee41871 18
musallambseiso 4:bc02594c4902 19 _velocity.x = -speed; // Velocity is based on the speed, which is input when method is used.
musallambseiso 3:ed7f3ee41871 20 _velocity.y = 0;
musallambseiso 3:ed7f3ee41871 21 }
musallambseiso 3:ed7f3ee41871 22
musallambseiso 4:bc02594c4902 23
musallambseiso 4:bc02594c4902 24 // Draws third enemy ship onto LCD:
musallambseiso 4:bc02594c4902 25
musallambseiso 3:ed7f3ee41871 26 void Enemy3::draw(N5110 &lcd)
musallambseiso 3:ed7f3ee41871 27 {
musallambseiso 3:ed7f3ee41871 28 lcd.drawLine(_x,_y,_x,_y+5,1);
musallambseiso 3:ed7f3ee41871 29 lcd.drawLine(_x-1,_y,_x-1,_y+5,1);
musallambseiso 3:ed7f3ee41871 30 lcd.drawLine(_x-2,_y+1,_x-2,_y+4,1);
musallambseiso 3:ed7f3ee41871 31 lcd.drawLine(_x-3,_y+1,_x-3,_y+4,1);
musallambseiso 3:ed7f3ee41871 32 lcd.drawLine(_x-4,_y+2,_x-4,_y+3,1);
musallambseiso 3:ed7f3ee41871 33 }
musallambseiso 3:ed7f3ee41871 34
musallambseiso 4:bc02594c4902 35
musallambseiso 4:bc02594c4902 36 // Updates third enemy ship's position:
musallambseiso 4:bc02594c4902 37
musallambseiso 3:ed7f3ee41871 38 void Enemy3::update()
musallambseiso 3:ed7f3ee41871 39 {
musallambseiso 4:bc02594c4902 40 // X and y positions depend on velocity:
musallambseiso 3:ed7f3ee41871 41 _x += _velocity.x;
musallambseiso 3:ed7f3ee41871 42 _y += _velocity.y;
musallambseiso 3:ed7f3ee41871 43 }
musallambseiso 3:ed7f3ee41871 44
musallambseiso 4:bc02594c4902 45
musallambseiso 4:bc02594c4902 46 // Obtains third enemy ship's current position:
musallambseiso 4:bc02594c4902 47
musallambseiso 3:ed7f3ee41871 48 Vector2D Enemy3::get_pos()
musallambseiso 3:ed7f3ee41871 49 {
musallambseiso 3:ed7f3ee41871 50 Vector2D p = {_x,_y};
musallambseiso 3:ed7f3ee41871 51 return p;
musallambseiso 3:ed7f3ee41871 52 }