[Essentials Tutorial] Turn HM moves into items

[mgriffin]

Message: undefined method `hp' for nil:NilClass
Following Pokemon:419:in `check_surf'
Following Pokemon:880:in `pbSurf'

I think all the stuff you've written so far is fine, but you need to additionally make some changes in the following pokemon script that you've added to support surf (because it overwrites the core Essentials surfing code with its own code).

If you understand the changes that you made elsewhere you should be able to work out how to make similar changes in Following Pokemon (probably around line 880 or 419 as those are the lines mentioned in your error).

EDIT: I did something similar a while back, see this pastebin, specifically the part after "@@ -122154,23 +122323,30 @@ # Follow_Pokemon.rb", red is removed, green is added. Keep in mind that my item was called FLOATY and I wanted to keep the HM moves functional.

 

[MissKanabellle]

AH! Thank you, I didn't even think about updating the Follow Pokemon code. It's working now :)

 

[TheTangentYeti]

FL do you think you could make a tutorial for essentials v17 as the structure of the code is a bit different and its quite confusing to me and im guessing thats the same for others as well

 

[FL]

FL do you think you could make a tutorial for essentials v17 as the structure of the code is a bit different and its quite confusing to me and im guessing thats the same for others as well

According to MissKanabellle and mgriffin, the tutorial is working for v17.2.

 

[TheTangentYeti]

okay thanks

 

[Serpico]

Hello. I have the Same Problem as @TheTangentYeti.
Since the Structure of the Code changed in 17.2 I have no Idea what to change so I can make an Item out of a HM.
Yes, the Code might still work with 17.2 but the Thing is, that @MissKanabelle used it with SURF. I need it for CUT. Both codes look very different to me. Another thing is that I am very new to RPGMaker and Pokémon essentials and I learned that I should not edit the code, if I do not fully understand what it does.
I think what would help me as a completly noob besides Video tutorials, is if someone could tell me exactly what lines I have to change to what. For example: The Code of CUT starts at line 192 and ends with
247.So If someone could for example say: Change Line 209

HiddenMoveHandlers::CanUseMove.add(:CUT,proc{|move,pkmn,showmsg|

to

HiddenMoveHandlers::CanUseMove.add(:CUT,proc{|CHANGE,FOR,EXAMPLE|

I could better understand what happend and what was changed. Or post an example code of the code I need so I can check what was changed and where. That would be a great help.

 

[FL]

Hello. I have the Same Problem as @TheTangentYeti.
Since the Structure of the Code changed in 17.2 I have no Idea what to change so I can make an Item out of a HM.
Yes, the Code might still work with 17.2 but the Thing is, that @MissKanabelle used it with SURF. I need it for CUT. Both codes look very different to me. Another thing is that I am very new to RPGMaker and Pokémon essentials and I learned that I should not edit the code, if I do not fully understand what it does.
I think what would help me as a completly noob besides Video tutorials, is if someone could tell me exactly what lines I have to change to what. For example: The Code of CUT starts at line 192 and ends with
247.So If someone could for example say: Change Line 209

HiddenMoveHandlers::CanUseMove.add(:CUT,proc{|move,pkmn,showmsg|

to

HiddenMoveHandlers::CanUseMove.add(:CUT,proc{|CHANGE,FOR,EXAMPLE|

I could better understand what happend and what was changed. Or post an example code of the code I need so I can check what was changed and where. That would be a great help.

I learned that I should not edit the code

At least while you don't have a good experience with scripts.

A step by step is a little harder, since changing the HMs into items requires a minimal script knowledge. I can post an example, like I did with Cut, but this should change a little with moves like Fly. Anyway, I gonna test again the process with Cut on version 17.2 and update the scripts.

 

[FL]

Tutorial updated and tested for Essentials v17.2.

 

[huggintrees]

Hey thanks so much for all your guides and tutorials! They've been super helpful.

I can't seem to get my HM Item Strength to work however.
I can interact with the builders fine and the game recognizes the HM item I think, but when I activate the item, I just can't move the boulder. The boulder won't budge.

This is my Strength script... sorry for messy format!

def Kernel.pbStrength
if $DEBUG ||
(HIDDENMOVESCOUNTBADGES ? $Trainer.numbadges>=BADGEFORCUT : $Trainer.badges[BADGEFORCUT])
movefinder=Kernel.pbCheckMove(:STRENGTH)
movefinder=nil
if $DEBUG || $PokemonBag.pbQuantity(PBItems::EXO)>0
if Kernel.pbConfirmMessage(_INTL("Would you like to equip the Exoskeleton and move the boulder?"))
speciesname=!movefinder ? $Trainer.name : movefinder.name
Kernel.pbMessage(_INTL("{1} equipped the Exoskeleton!",$Trainer.name))
pbHiddenMoveAnimation(movefinder)
return true
end
else
Kernel.pbMessage(_INTL("It's a big boulder, but theoretically it should be movable."))
end
else
Kernel.pbMessage(_INTL("It's a big boulder, but theoretically it should be movable."))
end
return false
end

Events.onAction+=proc{|sender,e|
facingEvent=$game_player.pbFacingEvent
if facingEvent
if facingEvent.name=="Boulder"
Kernel.pbStrength
return
end
end
}

#HiddenMoveHandlers::CanUseMove.add(:STRENGTH,proc{|move,pkmn,showmsg|
# return false if !pbCheckHiddenMoveBadge(BADGEFORSTRENGTH,showmsg)
# if $PokemonMap.strengthUsed
# Kernel.pbMessage(_INTL("Exoskeleton is already being used.")) if showmsg
# return false
# end
# return true
#})

#HiddenMoveHandlers::UseMove.add(:STRENGTH,proc{|move,pokemon|
# if !pbHiddenMoveAnimation(pokemon)
# Kernel.pbMessage(_INTL("{1} used the Exoskeleton!",$Trainer.name))
# end
# Kernel.pbMessage(_INTL("{1}'s Exoskeleton made it possible to move boulders around!",$Trainer.name))
# $PokemonMap.strengthUsed = true
# return true
#})

def canUseStrength?
terrain=Kernel.pbFacingTerrainTag
if !$DEBUG &&
!(HIDDENMOVESCOUNTBADGES ? $Trainer.numbadges>=BADGEFORROCKSMASH : $Trainer.badges[BADGEFORROCKSMASH])
Kernel.pbMessage(_INTL("Sorry, a new Badge is required."))
return false
end
facingEvent=$game_player.pbFacingEvent
if !facingEvent || facingEvent.name!="Boulder"
Kernel.pbMessage(_INTL("Can't use that here."))
return false
end
return true
end

def useStrength
if !pbHiddenMoveAnimation(nil)
Kernel.pbMessage(_INTL("{1} used the Exoskeleton!",$Trainer.name))
end
facingEvent=$game_player.pbFacingEvent
if facingEvent
facingEvent.erase
$PokemonMap.addErasedEvent(facingEvent.id)
end
return true
end

 

[FL]

Hey thanks so much for all your guides and tutorials! They've been super helpful.

I can't seem to get my HM Item Strength to work however.
I can interact with the builders fine and the game recognizes the HM item I think, but when I activate the item, I just can't move the boulder. The boulder won't budge.

This is my Strength script... sorry for messy format!

def Kernel.pbStrength
if $DEBUG ||
(HIDDENMOVESCOUNTBADGES ? $Trainer.numbadges>=BADGEFORCUT : $Trainer.badges[BADGEFORCUT])
movefinder=Kernel.pbCheckMove(:STRENGTH)
movefinder=nil
if $DEBUG || $PokemonBag.pbQuantity(PBItems::EXO)>0
if Kernel.pbConfirmMessage(_INTL("Would you like to equip the Exoskeleton and move the boulder?"))
speciesname=!movefinder ? $Trainer.name : movefinder.name
Kernel.pbMessage(_INTL("{1} equipped the Exoskeleton!",$Trainer.name))
pbHiddenMoveAnimation(movefinder)
return true
end
else
Kernel.pbMessage(_INTL("It's a big boulder, but theoretically it should be movable."))
end
else
Kernel.pbMessage(_INTL("It's a big boulder, but theoretically it should be movable."))
end
return false
end

Events.onAction+=proc{|sender,e|
facingEvent=$game_player.pbFacingEvent
if facingEvent
if facingEvent.name=="Boulder"
Kernel.pbStrength
return
end
end
}

#HiddenMoveHandlers::CanUseMove.add(:STRENGTH,proc{|move,pkmn,showmsg|
# return false if !pbCheckHiddenMoveBadge(BADGEFORSTRENGTH,showmsg)
# if $PokemonMap.strengthUsed
# Kernel.pbMessage(_INTL("Exoskeleton is already being used.")) if showmsg
# return false
# end
# return true
#})

#HiddenMoveHandlers::UseMove.add(:STRENGTH,proc{|move,pokemon|
# if !pbHiddenMoveAnimation(pokemon)
# Kernel.pbMessage(_INTL("{1} used the Exoskeleton!",$Trainer.name))
# end
# Kernel.pbMessage(_INTL("{1}'s Exoskeleton made it possible to move boulders around!",$Trainer.name))
# $PokemonMap.strengthUsed = true
# return true
#})

def canUseStrength?
terrain=Kernel.pbFacingTerrainTag
if !$DEBUG &&
!(HIDDENMOVESCOUNTBADGES ? $Trainer.numbadges>=BADGEFORROCKSMASH : $Trainer.badges[BADGEFORROCKSMASH])
Kernel.pbMessage(_INTL("Sorry, a new Badge is required."))
return false
end
facingEvent=$game_player.pbFacingEvent
if !facingEvent || facingEvent.name!="Boulder"
Kernel.pbMessage(_INTL("Can't use that here."))
return false
end
return true
end

def useStrength
if !pbHiddenMoveAnimation(nil)
Kernel.pbMessage(_INTL("{1} used the Exoskeleton!",$Trainer.name))
end
facingEvent=$game_player.pbFacingEvent
if facingEvent
facingEvent.erase
$PokemonMap.addErasedEvent(facingEvent.id)
end
return true
end

Your code is a bit outdate. Here's mine:

def Kernel.pbStrength
  if $PokemonMap.strengthUsed
    Kernel.pbMessage(_INTL("Exoskeleton made it possible to move boulders around."))
    return false
  end
  move = getID(PBMoves,:STRENGTH)
  movefinder = Kernel.pbCheckMove(move)
    if !pbCheckHiddenMoveBadge(BADGEFORSTRENGTH,false) ||
      (!$DEBUG || $PokemonBag.pbQuantity(PBItems::EXO)>0)
    Kernel.pbMessage(_INTL("It's a big boulder, but theoretically it should be movable."))
    return false
  end
  Kernel.pbMessage(_INTL("It's a big boulder, but theoretically it should be movable.\1"))
  if Kernel.pbConfirmMessage(_INTL("Would you like to equip the Exoskeleton and move the boulder?"))
    movefinder = nil
    speciesname = (movefinder) ? movefinder.name : $Trainer.name
    Kernel.pbMessage(_INTL("{1} equipped the Exoskeleton!",$Trainer.name))
    pbHiddenMoveAnimation(movefinder)
    $PokemonMap.strengthUsed = true
    return true
  end
  return false
end

def useStrength
   if !pbHiddenMoveAnimation(nil)
     Kernel.pbMessage(_INTL("{1} used the Exoskeleton!",$Trainer.name))
   end
   $PokemonMap.strengthUsed = true
   return true
end

def canUseStrength?
   showmsg = false
   return false if !pbCheckHiddenMoveBadge(BADGEFORSTRENGTH,showmsg)
   if $PokemonMap.strengthUsed
     Kernel.pbMessage(_INTL("Exoskeleton is already being equipped.")) if showmsg
     return false
   end
   return true
end

I guess that '$PokemonMap.strengthUsed = true' made the difference.

 

[huggintrees]

Yo FL! It worked like a charm haha thanks a bunch. It's been really cool to try and make my own Pokemon game, and it's a lot due to you haha!

Sorry if I'm asking too much, but do you mind sharing your Fly or Waterfall scripts? Haha thanks again!

 

[FL]

Yo FL! It worked like a charm haha thanks a bunch. It's been really cool to try and make my own Pokemon game, and it's a lot due to you haha!

Sorry if I'm asking too much, but do you mind sharing your Fly or Waterfall scripts? Haha thanks again!

Waterfall I guess that you only need to follow the tutorial. Fly I know that it is a different case. So, the code is:

def canUseFly
    showmsg = true
   return false if !pbCheckHiddenMoveBadge(BADGEFORFLY,showmsg)
   if $game_player.pbHasDependentEvents?
     Kernel.pbMessage(_INTL("It can't be used when you have someone with you.")) if showmsg
     return false
   end
   if !pbGetMetadata($game_map.map_id,MetadataOutdoor)
     Kernel.pbMessage(_INTL("Can't use that here.")) if showmsg
     return false
   end
   return true
end

def useFly
   scene = PokemonRegionMap_Scene.new(-1,false)
   screen = PokemonRegionMapScreen.new(scene)
   $PokemonTemp.flydata = screen.pbStartFlyScreen
   if !$PokemonTemp.flydata
     Kernel.pbMessage(_INTL("Can't use that here."))
     return false
   end
   if !pbHiddenMoveAnimation(nil)
     Kernel.pbMessage(_INTL("{1} used {2}!",$Trainer.name,"Jetpack"))
   end
   pbFadeOutIn(99999){
      $game_temp.player_new_map_id    = $PokemonTemp.flydata[0]
      $game_temp.player_new_x         = $PokemonTemp.flydata[1]
      $game_temp.player_new_y         = $PokemonTemp.flydata[2]
      $game_temp.player_new_direction = 2
      Kernel.pbCancelVehicles
      $PokemonTemp.flydata = nil
      $scene.transfer_player
      $game_map.autoplay
      $game_map.refresh
   }
   pbEraseEscapePoint
   return true
end

 

[Antoneh]

Hi, I'm starting to create a PKM game and I have some questions about objects and HM:
-I'm creating a key object that resembles a swiss knife and can do Cut, Rock Smash, Headbutt, Flash and Strengh.

650,NAVALLA,Navalla,Navalles,8,0,"Una navalla suïssa que et permet eliminar obstacles.",2,0,6,

-You get it at the start of the game with only Cut and RockSmash available. It upgrades as you find NPCs. Because you get it at the start of the game, I changed in Settings:

HIDDENMOVESCOUNTBADGES = false
BADGEFORCUT            = 0
BADGEFORFLASH          = 0
BADGEFORROCKSMASH      = 0
BADGEFORSURF           = 0
BADGEFORFLY            = 0
BADGEFORSTRENGTH       = 0
BADGEFORDIVE           = 0
BADGEFORWATERFALL      = 0

But with that, right now I can execute all the HM without restriction. What line I have to change so the interaction will only happen if you have the specific object?
If I want to create an item that upgrades, should I define different items and just change that every time the item "upgrades"?
Also:

First, in PokemonHiddenMoves script section comment the 'HiddenMoveHandlers::CanUseMove' proc (all the code, inclusive the '})'). Change the line '(!$DEBUG && !movefinder)' (there's one for each move that can be used outside menu) to '(!$DEBUG && $PokemonBag.pbQuantity(PBItems::YOURITEMINTERNALNAME)==0)'. Before line 'speciesname = (movefinder) ? movefinder.name : $Trainer.name', add line 'movefinder=nil' for won't show pokémon name and animation. There's a item example for item.txt PBS:

601,SURFBOARD,Surfboard,Surfboards,8,0,"Insert description here.",0,0,6

I don't understand what I have to do on this sentence :S

Thx!

 

[#Not Important]

I dont want to make you guys feel like u wasted your time...
But Marin made a perfectly functioning script called HMItems that can be added using Luka S.J.'s EPI...

 

[FL]

For activating the HM without the use command using the same item, just follow the tutorial and use the same item on both places.

For having the badge requiremente, don't follow this step:

Mark HIDDENMOVESCOUNTBADGES as true and all badges to 0 to remove the badge requirements.

For adding on "use" effect, follow this model for Headbutt (untested).

ItemHandlers::UseFromBag.add(:YOURITEMINTERNALNAME,proc{|item|
   next canUseMoveRockSmash? || canUseMoveCut? || canUseMoveStrength? ? 2 : 0
})

ItemHandlers::UseInField.add(:YOURITEMINTERNALNAME,proc{|item|
   if canUseMoveRockSmash?
	useMoveRockSmash
   elsif canUseMoveCut?
	useMoveCut
   elsif canUseMoveStrength?
	useMoveStrenght
# ...
   end

})

Anyway, since you gonna add Flash, I suggest you to only maintain Flash "Use" effect.

I don't understand what I have to do on this sentence

HiddenMoveHandlers::CanUseMove.add(:CUT,proc{|move,pkmn,showmsg|
   return false if !pbCheckHiddenMoveBadge(BADGEFORCUT,showmsg)
   facingEvent = $game_player.pbFacingEvent
   if !facingEvent || facingEvent.name!="Tree"
     Kernel.pbMessage(_INTL("Can't use that here.")) if showmsg
     return false
   end
   return true
})

Here is the HiddenMoveHandlers::CanUseMove for Cut. You need to comment all this code.

I dont want to make you guys feel like u wasted your time...
But Marin made a perfectly functioning script called HMItems that can be added using Luka S.J.'s EPI...

Thanks for the tip!

Anyway, this tutorial was made years before Marin joined on this forum.