Script for scrolling battlebacks?

[MasterMoes 19]

Hello again, fellow RPG Maker community,

So I'm trying to implement scrolling battlebacks into my VX Ace game. I have this scene where the character says something in a battle, the screen flashes, and then the front and back battlebacks change, and then they start scrolling and looping much like a parallax background. I tried coding some manual events, but this seems impossible without a script. I looked around for a script and only found this one: 

https://forums.rpgmakerweb.com/index.php?threads/scrolling-battleback.41844/

It seemed like it would do the trick, but after inserting it into my game, as soon as I boot up the game I get this error:

I have never seen an error like this before. I even put it into a new project and it still wouldn't work. Does anyone know what the problem is and how to fix it? Or does anyone know of another script that does this?

[Rikifive 3,411]

I think the script formatting is broken, split these two things into separate lines.

It should be

@back1_sprite.z = 0

@back1_sprite.ox = 0

Not in a single line like this:

@back1_sprite.z = 0    @back1_sprite.ox = 0

 

If the game crashes and points to this line, simply open the script editor and you'll be taken there, then simply press enter between these two variable assignments.

[MasterMoes 19]

I see the problem. I had done that before but then I realized this error was happening in 4 different places. I thought it was the same error not being fixed! Thank you!

For the sake of anyone reading this post who are having the same issue, here is the fixed version.

#==============================================================================
#** NS
#==============================================================================
class NS;
end #NS

#==============================================================================
# ** NS::Battle_Plane
#==============================================================================
class NS::Battle_Plane       
    # Switch to Enable Scrolling Background    
    Enable_Switch    = 15        
    # Variables for Horizontal and Vertical Scroll Speed    
    Back1_X_Variable = 10    
    Back1_Y_Variable = 11    
    Back2_X_Variable = 12    
    Back2_Y_Variable = 13    
end # NS::Battle_Plane


#==============================================================================
#** Spriteset_Battle
#==============================================================================
class Spriteset_Battle  

    #--------------------------------------------------------------------------  
    #* Create Battle Background (Floor) Sprite  
    #--------------------------------------------------------------------------  
    unless method_defined?(:battleback_C42W53GD_sb_create_battleback1)    
        alias_method(:battleback_C42W53GD_sb_create_battleback1, :create_battleback1) 
    end    

    def create_battleback1(*args, &block)    
        if $game_switches[NS::Battle_Plane::Enable_Switch] == true    
            @back1_sprite = Plane.new(@viewport1)      
            @back1_sprite.bitmap = battleback1_bitmap    
            @back1_sprite.z  = 0
            @back1_sprite_ox = 0   
            @back1_sprite_oy = 0    
        else     
            battleback_C42W53GD_sb_create_battleback1(*args, &block)   
        end  
    end   

  #--------------------------------------------------------------------------  
  # * Create Battle Background (Wall) Sprite  
  #--------------------------------------------------------------------------  
    unless method_defined?(:battleback_ms67JgWE_sb_create_battleback2)    
        alias_method(:battleback_ms67JgWE_sb_create_battleback2, :create_battleback2)  
    end    

    def create_battleback2(*args, &block)   
        if $game_switches[NS::Battle_Plane::Enable_Switch] == true     
            @back2_sprite = Plane.new(@viewport1)      
            @back2_sprite.bitmap = battleback2_bitmap      
            @back2_sprite.z = 1      
            @back2_sprite_ox = 0     
            @back2_sprite_oy = 0    
        else      
            battleback_ms67JgWE_sb_create_battleback2(*args, &block)   
        end  
     end  
  #-------------------------------------------------------------------------- 
  #* Update Battle Background (Floor) Sprite  
  #--------------------------------------------------------------------------  
    unless method_defined?(:battleback_HNirC0QE_sb_update_battleback1)    
     alias_method(:battleback_HNirC0QE_sb_update_battleback1, :update_battleback1) 
    end    

    def update_battleback1(*args, &block)   
        if $game_switches[NS::Battle_Plane::Enable_Switch] == true    
            @back1_sprite_ox += $game_variables[NS::Battle_Plane::Back1_X_Variable].to_f / 64 
            @back1_sprite_oy += $game_variables[NS::Battle_Plane::Back1_Y_Variable].to_f / 64 
            @back1_sprite.ox = @back1_sprite_ox * 16      
            @back1_sprite.oy = @back1_sprite_oy * 16  
        else      
            battleback_HNirC0QE_sb_update_battleback1(*args, &block)   
        end  
    end   
    
    #--------------------------------------------------------------------------  
    # * Update Battle Background (Wall) Sprite  
    #-------------------------------------------------------------------------- 
    unless method_defined?(:battleback_zmrQkMCU_sb_update_battleback2)   
        alias_method(:battleback_zmrQkMCU_sb_update_battleback2, :update_battleback2)
    end   
    
    def update_battleback2(*args, &block)    
        if $game_switches[NS::Battle_Plane::Enable_Switch] == true    
            @back2_sprite_ox += $game_variables[NS::Battle_Plane::Back2_X_Variable].to_f / 64  
            @back2_sprite_oy += $game_variables[NS::Battle_Plane::Back2_Y_Variable].to_f / 64   
            @back2_sprite.ox = @back2_sprite_ox * 16      
            @back2_sprite.oy = @back2_sprite_oy * 16  
        else      
            battleback_zmrQkMCU_sb_update_battleback2(*args, &block) 
        end  
    end

end # Spriteset_Battle

 

[Rikifive 3,411]

Yes, yes, now that I checked the script over there, there indeed was the same error in multiple spots. Scripts posted on RMW got their formatting broken during migration to another forum software, if I recall correctly. All scripts turned into super long one liners and it looks like someone overlooked some of the lines when fixing the formatting manually.

You're welcome.