Browser MMO Video #7

[hallsofvallhalla]

Part A
[youtubehd]http://www.youtube.com/watch?v=nwQ6R3b60TM[/youtubehd]

Part B
[youtubehd]http://www.youtube.com/watch?v=IGK2A7UQ8Wk[/youtubehd]

Part C
[youtubehd]http://www.youtube.com/watch?v=ymdIErOPj_A[/youtubehd]


Source thus far

attack.php

Code: Select all

<?php
include_once 'connect.php';
  session_start();

if (isset($_SESSION['player']))
{
  $player=$_SESSION['player'];
}
else
{
  echo "Not Logged in <br><br> <A href='login.php'>Login</a>";
  exit;
}




$playerinfo="SELECT * from players where name='$player'";
$playerinfo2=mysql_query($playerinfo) or die("could not get player stats!");
$playerinfo3=mysql_fetch_array($playerinfo2);

 if (isset($_GET['creature']))
{
$creature=$_GET['creature'];
$creatureinfo="SELECT * from creatures where name = '$creature'";
$creatureinfo2=mysql_query($creatureinfo) or die("could not get the creature you were fighting!");
$creatureinfo3=mysql_fetch_array($creatureinfo2);

}
else
{
  echo "<a href='battle.php'>No Creature selected. Go Back!";
  exit;
}

$playerhp = $playerinfo3['hpoints'];
$playerattack = $playerinfo3['attack'];
$playerdefense = $playerinfo3['defense'];

$creature = $creatureinfo3['name'];
$creaturehp = $creatureinfo3['hpoints'];
$creatureattack = $creatureinfo3['attack'];
$creaturedefense = $creatureinfo3['defense'];


///////////////////////players turn////////////////////

echo "<u> " . $playerinfo3['name'] . "'s Attack</u><br>";
$playerattack = rand(1,20) + $playerattack;
$creaturedefense = rand(1,20) + $creaturedefense;

echo $playerinfo3['name'] . "'s Attack roll is " . $playerattack . "<br>";
echo $creature . "'s defense roll is " . $creaturedefense. "<br>";

if ($playerattack  > $creaturedefense)
{
  echo $playerinfo3['name'] . " hits! <br>";
  $playerdamage = rand(1,6);
   $newcreaturehp = $creaturehp - $playerdamage;
  echo "For " . $playerdamage . " points of damage. <br>";
   if ($newcreaturehp < 1)
   {
     echo "The " . $creature . " has been killed";
       
        $updatecreature="DELETE from creatures where name='$creature' limit 1";
  mysql_query($updatecreature) or die("Could not update creature");


    //////////////////////video 6////////////////////////
        if ($playerinfo3['level'] > $creatureinfo3['level'])
        {
         $firstmod = $playerinfo3['level'] - $creatureinfo3['level'];
         $secondmod = $firstmod * 10 ;
         if ($secondmod > 90){$secondmod = 90;}
         $thirdmod = ($secondmod / 100) * $creatureinfo3['exper'];
         $totalexper =$creatureinfo3['exper'] - $thirdmod;
        }
        else
        {
         $firstmod = $creatureinfo3['level'] - $playerinfo3['level'];
         $secondmod = $firstmod * 10 ;
         if ($secondmod > 90){$secondmod = 90;}
         $thirdmod = ($secondmod / 100) * $creatureinfo3['exper'];
         $totalexper =$creatureinfo3['exper'] + $thirdmod;
        }
          $totalexper = (int)$totalexper;

           echo "<br><b><big>You gain " . $totalexper . " experience.</b></big><br>";
      $updateplayer="update players set exper=exper+'$totalexper' where name='$player'";
  mysql_query($updateplayer) or die("Could not update player");



      echo "<a href='battle.php'>Go Back";
      exit;
   }
   ///////////////////////////////
  $updatecreature="update creatures set hpoints='$newcreaturehp' where name='$creature' limit 1";
  mysql_query($updatecreature) or die("Could not update creature");
}
else
{
   echo $playerinfo3['name'] . " misses!<br>";
}
 //////////////////////creatures turn //////////////////

echo "<u> " . $creature . "'s Attack</u><br>";
$creatureattack = rand(1,20) + $creatureattack;
$playerdefense = rand(1,20) + $playerdefense;

echo $creature . "'s Attack roll is " . $creatureattack . "<br>";
echo $playerinfo3['name'] . "'s defense roll is " . $playerdefense . "<br>";

if ($creatureattack  > $playerdefense)
{
  echo $creature . " hits! <br>";
  $creaturedamage = rand(1,6);
   $newplayerhp = $playerhp - $creaturedamage;
   echo "For " . $creaturedamage . " points of damage. <br>";
   if ($newplayerhp < 1)
   {
     echo $playerinfo3['name'] . " has been killed<br>";
      echo "<a href='gameover.php>Continue'";
      exit;
   }
  $updateplayer="update players set hpoints='$newplayerhp' where name='$player'";
  mysql_query($updateplayer) or die("Could not update player");
}
else
{
  echo $creature . " misses!";
}
 echo "<br><br><a href='battle.php?creature=$creature'>Battle Again!";
 ?>

authenticate.php

Code: Select all

<?php
include_once 'connect.php';
session_start();

if (isset($_POST['submit']))
{
  $player=$_POST['player'];
  $password=$_POST['password'];
  $player=strip_tags($player);
  $password=strip_tags($password);
  $password=md5($password);

  $query = "select name,password from players where name='$player' and password='$password'";
  $result = mysql_query($query) or die("Could not query players");
  $result2 = mysql_fetch_array($result);
  if ($result2)
  { 
    $_SESSION['player']=$player;
    
    echo "<big>Logged in successfully<br>";
    echo "<A href='battle.php'>Continue</a></big>";
  }
  else
  {
   echo "<big>Wrong username or password.<A href='login.php'>Try Again</a></big>";
  }
}
?>

battle.php

Code: Select all

<?php
include_once 'connect.php';
 session_start();

if (isset($_SESSION['player']))
{
  $player=$_SESSION['player'];
}
else
{
  echo "Not Logged in <br><br> <A href='login.php'>Login</a>";
  exit;
}
$playerinfo="SELECT * from players where name='$player'";
$playerinfo2=mysql_query($playerinfo) or die("could not get player stats!");
$playerinfo3=mysql_fetch_array($playerinfo2);

$playerhp = $playerinfo3['hpoints'];
$playerattack = $playerinfo3['attack'];
$playerdefense = $playerinfo3['defense'];

////////////////new for video 7///////////////
 if (isset($_GET['randid']))
{
   $randid=$_GET['randid'];
   $iteminfo="SELECT * from inventory where randid='$randid'";
$iteminfo2=mysql_query($iteminfo) or die("could not get item stats!");
$iteminfo3=mysql_fetch_array($iteminfo2);

if (!$iteminfo3['name'])
{
}
else
{

$name = $iteminfo3['name'];
$stats = $iteminfo3['stats'];
$statadd = $iteminfo3['statadd'];
$type = $iteminfo3['type'];
 
 if ($type == "healing")
 {
   $newhp = $statadd + $playerhp;
   if ($newhp > $playerinfo3['maxhp'])
   {
    $newhp = $playerinfo3['maxhp'];
   }
    $updateplayer="update players set hpoints='$newhp' where name='$player'";
  mysql_query($updateplayer) or die("Could not update player");

    $updateitem="DELETE from inventory where name='$name' AND randid='$randid' limit 1";
  mysql_query($updateitem) or die("Could not delete item");
   
   $playerhp = $newhp;
  
  echo "Used " . $name . " and recovered " . $statadd . ".<br>";
 }

}}
 ////////////////////////////////



 if (isset($_GET['creature']))
{
   $creature=$_GET['creature'];
   $creatureinfo="SELECT * from creatures where name = '$creature'";
$creatureinfo2=mysql_query($creatureinfo) or die("could not get the creature you were fighting!");
$creatureinfo3=mysql_fetch_array($creatureinfo2);

}
else
{
  $creatureinfo="SELECT * from creatures order by rand() limit 1";
$creatureinfo2=mysql_query($creatureinfo) or die("could get a creature!");
$creatureinfo3=mysql_fetch_array($creatureinfo2);
}

$creature = $creatureinfo3['name'];
$creaturehp = $creatureinfo3['hpoints'];
$creatureattack = $creatureinfo3['attack'];
$creaturedefense = $creatureinfo3['defense'];

/////player info
echo "<u> " . $playerinfo3['name'] . "</u><br>";
echo "Hit points = " . $playerhp . "<br>";
echo "Attack = " . $playerattack . "<br>";
echo "Defense = " . $playerdefense . "<br><br><br>";
 



///////creature info
echo "<u> " . $creatureinfo3['name'] . "</u><br>";
echo "Hit points = " . $creaturehp . "<br>";
echo "Attack = " . $creatureattack . "<br>";
echo "Defense = " . $creaturedefense . "<br><br><br>";

echo "<a href='attack.php?creature=$creature'>Attack!";

///////////////////new for tutorial 7/////////////////////
echo "<br><a href='useitem.php?creature=$creature'>Use Item";
echo "<br><a href='store.php?creature=$creature'>Go to Store";

?>

buyitem.php

Code: Select all

<?php
include_once 'connect.php';
 session_start();

if (isset($_SESSION['player']))
{
  $player=$_SESSION['player'];
}
else
{
  echo "Not Logged in <br><br> <A href='login.php'>Login</a>";
  exit;
}

  $creature=$_GET['creature'];
  $randid=$_GET['randid'];

$playerinfo="SELECT * from players where name='$player'";
$playerinfo2=mysql_query($playerinfo) or die("could not get player stats!");
$playerinfo3=mysql_fetch_array($playerinfo2);

$playerid = $playerinfo3['id'];

$iteminfo="SELECT * from store where randid='$randid'";
$iteminfo2=mysql_query($iteminfo) or die("could not get item stats!");
$iteminfo3=mysql_fetch_array($iteminfo2);

$name = $iteminfo3['name'];
$stats = $iteminfo3['stats'];
$statadd = $iteminfo3['statadd'];
$type = $iteminfo3['type'];
$randid2 = rand(1000,999999999);

$itembought = "INSERT into inventory(id, name, stats, statadd, randid,type) VALUES ('$playerid','$name','$stats','$statadd','$randid2','$type')";
mysql_query($itembought) or die("could not insert item into backpack");

echo $name . " Purchased";
 echo "<center><a href='battle.php?creature=$creature'>Go Back</center>";
  ////did not make a - counter for item////
  
  ?>

reguser.php

Code: Select all

<?php
include 'connect.php';
?>

<?php
$player=$_POST['player'];
$password=$_POST['password'];
$pass2=$_POST['pass2'];
$player=strip_tags($player);
$email=$_POST['email'];
$email=strip_tags($email);

if ($email == "")
{
echo "You didn't enter a email address!<br>";
echo " <A href='register.php'>Go back</a>";
exit;
}
if ($password==$pass2)
{

$isplayer="SELECT * from players where name='$player'";
$isplayer2=mysql_query($isplayer) or die("Could not query players table");
$isplayer3=mysql_fetch_array($isplayer2);

if(!$_POST['password'] || !$_POST['pass2'])
{
print "You did not enter a password<br>";
echo " <A href='register.php'>Go back</a>";
exit;
}
else if($isplayer3 || strlen($player)>21 || strlen($player)<1)
{
print "There is already a player of that name or the name you specified is over 16 letters or less than 1 letter";
echo " <A href='register.php'>Go back</a><br>";
exit;
}
else
{
$isaddress="SELECT * from players where email='$email'";
$isaddress2=mysql_query($isaddress) or die("not able to query for password");
$isaddress3=mysql_fetch_array($isaddress2);
if($isaddress3)
{
print "There is already a player with that e-mail address";
echo " <A href='register.php'>Go back</a><br>";
exit;
}
else
{
$password=md5($password);

$SQL = "INSERT into players(name, password, email, level, exper, attack, defense, hpoints, maxhp) VALUES ('$player','$password','$email','1','0','5','5','30','30')";
mysql_query($SQL) or die("could not register");

print "Thank you for registering!";

}
}
}

else
{
print "Your password didn't match or you did not enter a password";
echo " <A href='register.php'>Go back</a><br>";
exit;
}
 echo " <A href='login.php'>Login Page</a><br>";
?>

register.php

Code: Select all

<?php
include 'connect.php';

?>

<form method ="post" action="reguser.php">
Type Username Here: <input type="text" name="player" size="21"><br>
Type Password Here: <input type="text" name="password" size "15"><br>
ReType Password Again: <input type="text" name="pass2" size "15"><br>
Type Email Address: <input type="text" name="email" size "60"><br>

<input type="submit" value="submit">

store.php

Code: Select all

<?php
include_once 'connect.php';
 session_start();

if (isset($_SESSION['player']))
{
  $player=$_SESSION['player'];
}
else
{
  echo "Not Logged in <br><br> <A href='login.php'>Login</a>";
  exit;
}

  $creature=$_GET['creature'];
$counter = 0;

$playerinfo="SELECT * from players where name='$player'";
$playerinfo2=mysql_query($playerinfo) or die("could not get player stats!");
$playerinfo3=mysql_fetch_array($playerinfo2);

 echo "<small>";
      print "<center>";
      print "<table border='0' width='70%' cellspacing='20'>";
      print "<tr><td width='25%' valign='top'>";
      print "</td>";
      print "<td valign='top' width='75%'>";
      $invinfo="SELECT * from store where amount > 0";
      $invinfo2=mysql_query($invinfo) or die("could not select anything from the store.");
      print "<table border='1' bordercolor='white' bgcolor='#ffffff'>";
      print "<tr><td>Name<font color='ffffff'>________________</td><td>Stat<font color='ffffff'>______</td><td>Stat Add<font color='ffffff'>______</td><td>Type<font color='ffffff'>______</td><td>Price<font color='ffffff'>______</td></tr>";
      while($invinfo3=mysql_fetch_array($invinfo2))
      {
      $counter = 1;
      print "<tr><td>$invinfo3[name]</td><td>$invinfo3[stats]</td><td>$invinfo3[statadd]</td><td>$invinfo3[type]</td><td>$invinfo3[price]</td><td><A href='buyitem.php?randid=$invinfo3[randid]&creature=$creature'>Buy Item</td></tr>";

      }

      print "</table>";
      print "</td></tr></table>";
      print "</center>";
      echo "</small>";

      if ($counter == 0)
      {
            echo "<center>There is nothing in the store at this time.<br>";
            echo "<a href='battle.php?creature=$creature'>Go Back</center>";
            exit;
      }
  echo "<center><a href='battle.php?creature=$creature'>NeverMind</center>";
  
  ?>

useitem.php

Code: Select all

<?php

include_once 'connect.php';
 session_start();

if (isset($_SESSION['player']))
{
  $player=$_SESSION['player'];
}
else
{
  echo "Not Logged in <br><br> <A href='login.php'>Login</a>";
  exit;
}

 $creature=$_GET['creature'];

$playerinfo="SELECT * from players where name='$player'";
$playerinfo2=mysql_query($playerinfo) or die("could not get player stats!");
$playerinfo3=mysql_fetch_array($playerinfo2);

$playerid = $playerinfo3['id'];

$counter = 0;
 echo "<small>";
      print "<center>";
      print "<table border='0' width='70%' cellspacing='20'>";
      print "<tr><td width='25%' valign='top'>";
      print "</td>";
      print "<td valign='top' width='75%'>";
      $invinfo="SELECT * from inventory where id='$playerid'";
      $invinfo2=mysql_query($invinfo) or die("could not select player inventory");
      print "<table border='1' bordercolor='white' bgcolor='#ffffff'>";
      print "<tr><td>Name<font color='ffffff'>________________</font></td><td>Stat<font color='ffffff'>______</td><td>Stat Add<font color='ffffff'>______</td><td>Type<font color='ffffff'>______</td><td><font color='ffffff'>________________</td></tr>";
      while($invinfo3=mysql_fetch_array($invinfo2))
      {
      print "<tr><td>$invinfo3[name]</td><td>$invinfo3[stats]</td><td>$invinfo3[statadd]</td><td>$invinfo3[type]</td><td><A href='battle.php?randid=$invinfo3[randid]&creature=$creature'>Use Item</td></tr>";
       $counter = 1;

      }

      print "</table>";
      print "</td></tr></table>";
      print "</center>";
		 echo "</small>";

      if ($counter == 0)
      {
            echo "<center>You have Nothing in your inventory!<br>";
            echo "<a href='battle.php?creature=$creature'>Go Back</center>";
            exit;
      }

    echo "<center><a href='battle.php?creature=$creature'>NeverMind</center>";
    
    ?>

[mrmajic]

Hey Halls,

Great tutorial. I must say that I am really enjoying learning this type of game programming. Its very easy to understand, and having the code on the site is great, cos i know that if it wasnt, id have to keep checking thevideo, pausing, typing, would be a pain.

Thankyou again.

Rob.

ps: keep up the great work... looking forward to the next lot of vids

[mrmajic]

Quick question .. how do you go about adding items to the shop .. are we meant to be adding the field in for randid .. cos when you dont, you get an error .. but i dont think that you're supposed to since its a randon number .. ?? Does that make sense?

[hallsofvallhalla]

you can add in whatever you like as long as you add in something....when you first create the object just put something in..8876 or 33454 or 456564, it really doesnt matter.

[mrmajic]

in this part of the buyitem.php code,

'type'];
$randid2 = rand(1000,999999999);

$itembought = "INSERT into inventory(id, name, stats, statadd,???PRICE??? , randid,type) VALUES ('$playerid','$name','$stats','$statadd','$randid2','$type')";
mysql_query($itembought) or die("could not insert item into backpack");



is there meant to be price between statadd and randid??

[mrmajic]

OMG i feel like im actually learning, something that the teachers at my school could never take credit for ..

so i did add:


$name = $iteminfo3['name'];
$stats = $iteminfo3['stats'];
$statadd = $iteminfo3['statadd'];
$price = $iteminfo3['price'];
$type = $iteminfo3['type'];
$randid2 = rand(1000,999999999);

$itembought = "INSERT into inventory(id, name, stats, statadd, price, randid,type) VALUES ('$playerid','$name','$stats','$statadd','$price','$randid2','$type')";
mysql_query($itembought) or die("could not insert item into backpack");

the price thing, and $price = $iteminfo3['price']

amazing ..

thankyou

[hallsofvallhalla]

very good!!!

the reason why i did not ad price to inventory is because once its in your inventory the price doesnt matter or at least not currently, but here is a test for you.

Lets make it where the item looses 50% of its value after buying it. How would you make the value drop 50% once it goes in your inventory so later if you sell it back its half its worth?

I will give you some time to solve it then I will put up the answer.

[mrmajic]

i know its very rough, but i got the result, even if its all over the place.

i made a sellitem.php

<?php
session_start();

include_once 'connect.php';


if (isset($_SESSION['player']))
{
$player=$_SESSION['player'];
}
else
{
echo "Not Logged in <br><br> <A href='login.php'>Login</a>";
exit;
}

$playerinfo="SELECT * from players where name='$player'";
$playerinfo2=mysql_query($playerinfo) or die("could not get player stats!");
$playerinfo3=mysql_fetch_array($playerinfo2);

$playerid = $playerinfo3['id'];
$randid = $_GET['randid'];
$name = $_GET['itemname'];

$itembuyprice = "SELECT * from store where name='$name'";
$itembuyprice2 =mysql_query($itembuyprice) or die("could not select item");
$itembuyprice3 =mysql_fetch_array($itembuyprice2);

$buy = $itembuyprice3['price'];
$sell = $buy / 2;
$sell = (int)$sell;
$updateplayer="UPDATE players set gold=gold+'$sell' where id='$playerid'";
mysql_query($updateplayer) or die("Could not update player");

$updatecreature="DELETE from inventory where randid='$randid' limit 1";
mysql_query($updatecreature) or die("Could not update creature");

echo "<center><a href='battle.php?creature=$creature'>Back to battle</center>";

?>

IN USEITEM.PHP

i added a sell item link

print "<tr><td>$invinfo3[name]</td><td>$invinfo3[stats]</td><td>$invinfo3[statadd]</td><td>$invinfo3[type]</td><td><A href='battle.php?randid=$invinfo3[randid]&creature=$creature'>Use Item</a></td><td><A href='sellitem.php?randid=$invinfo3[randid]&itemname=$invinfo3[name]'>Sell Item</a></tr>";
$counter = 1;


i think thats all i did .. oh ,.. and i added GOLD to the players table...

sound about right?

TOOK ME ABOUT AN HOUR or SO... lol

[Bones]

Okay so I'm up to this point.
Purchasing of items works, using of items works (to a point)

I also don't have experience working yet, unless it was added to the battle.php already.

The problem with using an item is when I tried to use a potion of healing it set my health to 0.
I thought maybe it was subtracting it but when I set my health to 100 it did the same thing.

Any ideas as to what could be causing this?

[mrmajic]

just to confirm, you are talking about the players hitpoints .. right?