invaders/enemy.cpp

/* This file is part of Invaders.
 *
 * Copyright (C) 2020 LCM.
 * You may use, distribute and modify Invaders under the terms of the
 * GPLv3 license, available at <https://www.gnu.org/licenses/\>.
 */


#include "enemy.hpp"


enemy::enemy() : game_object() { id=4; alive=true; direction=0; }

enemy::enemy(int X,int Y) : game_object(X,Y,4) { alive=true; direction=0; }  


void enemy::next_pos(){

	if( (direction==0 && x==C-1) || (direction==1 && x==0) )
		direction=2;

	switch (direction){			//assegno a direction un valore 0,1,2
		case 0:				//0 significa che si sta muovendo verso destra
			x++;
			break;
		case 1:				//1 verso sinistra
			x--;
			break;
		case 2:				//2 verso il basso (quando incontra la parete).
			y++;
			break;
	}

	if(direction==2)
	{
		if(x==0) direction=0;
		else direction=1;
	}
	
}

void enemy::shoot(std::list<bullet> & bombs){	      //random bomb-dropping	
		bullet new_bomb(x,y+1,8);
		bombs.push_back(new_bomb);
}