Rewarding Players with Items for getting so many pokemon in the pokedex

[Backburner26]

Hey guys, I am trying to find out what code and checks to use so that when the player talks to the professor and you have 300 pokemon caught and registered, he gives you an Item.

 

[Marin]

Check for the the pokedex length/pokedex caught/seen. It's very useful to do some research first, because there is a whole wiki page for pokedex related stuff: https://pokemonessentials.wikia.com/wiki/Pokédex

 

[Backburner26]

Thats the first place i went to for help.
I never found what I wanted though.
All i wanted to know was how to make it so that when the player spoke to the professor with 300 obtained pokemon in the pokedex, the player gets an Item.

 

[Sir_Tman]

in a script conditional branch you put something like

 $Trainer.pokedexOwned(dex) <= 300

 

[Backburner26]

in a script conditional branch you put something like

 $Trainer.pokedexOwned(dex) <= 300

thanks dude!

EDIT: Just tried the script and this error came up

 ---------------------------
Pokemon Lavender Spirit
--------------------------
Exception: RuntimeError
Message: Script error within event 1, map 43 (Hazel's Lab):
Exception: NameError
Message: (eval):1:in `pbExecuteScript'undefined local variable or method `dex' for #<Interpreter:0x1084b978>

***Full script:
$Trainer.pokedexOwned(dex) <= 300
Interpreter:243:in `pbExecuteScript'
Interpreter:794:in `eval'
Interpreter:243:in `pbExecuteScript'
Interpreter:794:in `command_111'
Interpreter:320:in `execute_command'
Interpreter:193:in `update'
Interpreter:106:in `loop'
Interpreter:198:in `update'
Scene_Map:103:in `update'
Scene_Map:101:in `loop'

Interpreter:276:in `pbExecuteScript'
Interpreter:794:in `command_111'
Interpreter:320:in `execute_command'
Interpreter:193:in `update'
Interpreter:106:in `loop'
Interpreter:198:in `update'
Scene_Map:103:in `update'
Scene_Map:101:in `loop'
Scene_Map:114:in `update'
Scene_Map:68:in `main'

EDIT2:
Nevermind guys, I just found a fix. I just copied over the Evaluate Pokedex script from the pokegear and i'll use that