Pocketmine-mp: setMaxValue() on null.

[Muqsit]

Issue description

I was expecting the zombie's max health value to change.
The server gave me a critical error instead.

Steps to reproduce the issue

1. Spawn a zombie/living non-player
2. Log your console.

OS and versions

• PocketMine-MP: 7a36d80
• PHP: 7.0.17
• Server OS: Ubuntu 14.04
• Game version: Win10

Crashdump, backtrace or other files

• http://pastebin.com/MXW326u1
• http://pastebin.com/3VBwXZzh
• A dump of zombie's $attributeMap

[dktapps]

If I understood correctly, you simply spawned a zombie and this issue occurred? If so, I'm afraid I can't reproduce this.

[dktapps]

ah, I think I see your issue. You're using a custom Zombie class by my eyes. When your initEntity() is called, have you called parent::initEntity() before attempting to do this? If you haven't, the attribute map will not yet be initialized.

[Muqsit]

My bad.
That solves it. I was trying to move my project over from G-fork to here.
All the mob classes had this:

    public function initEntity(){
        $this->setMaxHealth(20);
        parent::initEntity();
    }

Thanks <3