Musallam Bseiso / Enemy4

Nemesis game, fourth enemy

Enemy4.cpp@3:c94be48251b5, 2017-05-03 (annotated)

Committer:
musallambseiso
Date:
Wed May 03 20:04:16 2017 +0000
Revision:
3:c94be48251b5
Parent:
2:1f2d27210997 
Removed redundant code, perfected Doxygen, added inline comments.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
musallambseiso 2:1f2d27210997 1 #include "Enemy4.h"
musallambseiso 2:1f2d27210997 2
musallambseiso 2:1f2d27210997 3 Enemy4::Enemy4()
musallambseiso 2:1f2d27210997 4 {
musallambseiso 2:1f2d27210997 5 }
musallambseiso 2:1f2d27210997 6
musallambseiso 2:1f2d27210997 7 Enemy4::~Enemy4()
musallambseiso 2:1f2d27210997 8 {
musallambseiso 3:c94be48251b5 9 }
musallambseiso 2:1f2d27210997 10
musallambseiso 3:c94be48251b5 11
musallambseiso 3:c94be48251b5 12 // Initializion method:
musallambseiso 2:1f2d27210997 13
musallambseiso 2:1f2d27210997 14 void Enemy4::init(int speed)
musallambseiso 2:1f2d27210997 15 {
musallambseiso 3:c94be48251b5 16 _x = rand() % 63 + 84; // Starting x position is randomized off screen. Creates a random ship generation.
musallambseiso 3:c94be48251b5 17 _y = 21; // Starting y position (fixed, fourth lane)
musallambseiso 2:1f2d27210997 18
musallambseiso 3:c94be48251b5 19 _velocity.x = -speed; // Velocity is based on the speed, which is input when method is used.
musallambseiso 2:1f2d27210997 20 _velocity.y = 0;
musallambseiso 2:1f2d27210997 21 }
musallambseiso 2:1f2d27210997 22
musallambseiso 3:c94be48251b5 23
musallambseiso 3:c94be48251b5 24 // Draws fourth enemy ship onto LCD:
musallambseiso 3:c94be48251b5 25
musallambseiso 2:1f2d27210997 26 void Enemy4::draw(N5110 &lcd)
musallambseiso 2:1f2d27210997 27 {
musallambseiso 2:1f2d27210997 28 lcd.drawLine(_x,_y,_x,_y+5,1);
musallambseiso 2:1f2d27210997 29 lcd.drawLine(_x-1,_y,_x-1,_y+5,1);
musallambseiso 2:1f2d27210997 30 lcd.drawLine(_x-2,_y+1,_x-2,_y+4,1);
musallambseiso 2:1f2d27210997 31 lcd.drawLine(_x-3,_y+1,_x-3,_y+4,1);
musallambseiso 2:1f2d27210997 32 lcd.drawLine(_x-4,_y+2,_x-4,_y+3,1);
musallambseiso 2:1f2d27210997 33 }
musallambseiso 2:1f2d27210997 34
musallambseiso 3:c94be48251b5 35
musallambseiso 3:c94be48251b5 36 // Updates fourth enemy ship's position:
musallambseiso 3:c94be48251b5 37
musallambseiso 2:1f2d27210997 38 void Enemy4::update()
musallambseiso 2:1f2d27210997 39 {
musallambseiso 3:c94be48251b5 40 // X and y positions depend on velocity:
musallambseiso 2:1f2d27210997 41 _x += _velocity.x;
musallambseiso 2:1f2d27210997 42 _y += _velocity.y;
musallambseiso 2:1f2d27210997 43 }
musallambseiso 2:1f2d27210997 44
musallambseiso 3:c94be48251b5 45
musallambseiso 3:c94be48251b5 46 // Obtains fourth enemy ship's current position:
musallambseiso 3:c94be48251b5 47
musallambseiso 2:1f2d27210997 48 Vector2D Enemy4::get_pos()
musallambseiso 2:1f2d27210997 49 {
musallambseiso 2:1f2d27210997 50 Vector2D p = {_x,_y};
musallambseiso 2:1f2d27210997 51 return p;
musallambseiso 2:1f2d27210997 52 }