Question

I’m working on making a simple simulation for my website, and I’ve looked around but cannot find anything on how to accomplish this. Could someone please provide how I would achieve the following output with code:

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There are two players, both level 2.

Player 1

Attack – 1
Defense – 2
Health – 10

Player 1

Attack – 2
Defense – 1
Health – 10

I want to to have a simulated turn-based battle between these two players. It would randomly choose who gets the first hit. For this we’ll say player 1 goes first.
The equation I would use to calculate the hit would be ($playerattack/$playerdefense) + rand(1,$level) (equation may work well, may not. just for testing purposes) I want to then have output like the following.

Player 1 (10 health) – hit a 2

Player 2 (8 health) – hit a 1

. . .

Player 1 (1 health) – hit a 2

Player 2 dies, Player 1 is victorious!

**Sorry to those who answered to the old example! Thanks for your feedback though

Answer 1

This allows only two players.

$players = array(
  array('attack' => 1, 'defense' => 2, 'health' => 10, 'level' => 2, ), 
  array('attack' => 2, 'defense' => 1, 'health' => 10, 'level' => 2, ), 
);
$count = 0;
while (true) {
  $count++;
  $players_temp = $players;
  $attacker_key = array_rand($players);
  $attacker     =& $players[$attacker_key];
  unset($players_temp[$attacker_key]);
  $defender_key = array_rand($players_temp);
  $defender     =& $players[$defender_key];

  $hit = ($attacker['attack']/$defender['defense']) + rand(1, $attacker['level']);
  echo "{$count}. Player {$defender_key} ({$defender['health']} health) is hit a {$hit} by Player {$attacker_key} ({$attacker['health']} health)\n";
  $defender['health'] = $defender['health'] - $hit;

  if ($defender['health'] <= 0) {
    echo "Player {$defender_key} dies, Player {$attacker_key} is victorious!\n";
    break;
  }

}

[Edited]
This allows more than two players and is turn based.

set_time_limit(1);
$players = array(
  'A' => array('attack' => 1, 'defense' => 2, 'health' => 10, 'level' => 2, ), 
  'B' => array('attack' => 2, 'defense' => 1, 'health' => 10, 'level' => 2, ), 
  'C' => array('attack' => 1, 'defense' => 1, 'health' => 10, 'level' => 2, ), 
  'D' => array('attack' => 2, 'defense' => 2, 'health' => 10, 'level' => 2, ), 
);
$player_ids = array_keys($players);
$no_of_players = sizeof($player_ids);
$count = 0;
while (true) {
  $defender_key=0;
  for ($attacker_key=0;$attacker_key<$no_of_players;$attacker_key++) {
    if (!isset($player_ids[$attacker_key])) continue;
    $count++;
    $attacker_id  = $player_ids[$attacker_key];
    $attacker     =& $players[$attacker_id];

    $defender_key = $attacker_key + 1;
    while (!isset($player_ids[$defender_key])) {
      $defender_key = ($defender_key+1 < $no_of_players) ?  $defender_key + 1 : 0;
    }
    $defender_id  = $player_ids[$defender_key];
    $defender     =& $players[$defender_id];

    $hit = round(($attacker['attack']/$defender['defense']) + rand(1, $attacker['level']), 2);
    echo "{$count}. Player {$attacker_id} ({$attacker['health']} health) has hit a {$hit} on Player {$defender_id} ({$defender['health']} health)<br />";
    $defender['health'] = $defender['health'] - $hit;

    if ($defender['health'] <= 0) {
      echo "Player {$defender_id} dies<br />";
      unset($players[$defender_id], $player_ids[$defender_key]);
      if (sizeof($player_ids) == 1) {
        echo "Player {$attacker_id} is victorious!<br />";
        break 2;
      }
    }

    //if ($count > 100) break 2;
  }
}