<?php

class unit{
	public $id;
	public $name;
	public $hp;
	public $armour;
	public $race;
	public function set_hp($new_hp){
		echo "<br>$this->$name, $this->$id: hp change from $this->$hp to ";
		$this->$hp=$new_hp;
		echo "$this->hp.";
		if($this->$hp<=0){
			$this->$hp=0;
			echo "<br>The unit died.";
		}
	}
	public function death_coil(){
		echo "<br>$this->$name, $this->$id got hit by a death coil.";
		if($this->$race=="ud")			set_hp($this->$hp+200);
		else if($this->$race=="hum")	set_hp($this->$hp-100);
	}
	public function holy_light(){
		echo "<br>$this->$name, $this->$id got holy lighted.";
		if($this->$race=="hum")			set_hp($this->$hp+200);
		else if($this->$race=="ud")		set_hp($this->$hp-100);
	}
}

class ghoul extends unit{
	public function __construct($id){
		$this->$id=$id;
		$this->$name="Ghoul";
		$this->$hp=340;
		$this->$armour=0;
		$this->$race="ud";
		echo "<br>New $this->$name, $this->$id created.";
	}
}

class footman extends unit{
	public function __construct($id){
		$this->$id=$id;
		$this->$name="Footman";
		$this->$hp=420;
		$this->$armour=2;
		$this->$race="hum";
		echo "<br>New $this->$name, $this->$id created.";
	}
}

$id=0;

function add_footman(){
	global $id;
	$tab[$id]=new footman($id);
	$id++;
}

function add_ghoul(){
	global $id;
	$tab[$id]=new ghoul($id);
	$id++;
}

function coil($id){
	$tab[$id]->death_coil();
	if($tab[$id]->hp==0)	unset($tab[$id]);
}

function light($id){
	$tab[$id]->holy_light();
	if($tab[$id]->hp==0)	unset($tab[$id]);
}

?>