[VX Ace] GaryCXJk's Free Movement and distance_per_frame Sprite Bug

[Robert-Character Creator]

Hello! Let's get right into it. I've had this bug for the majority of the 2.5 years I've been developing my game, but I haven't asked about it up until now. Basically, I've isolated the problem down to one script, and one core script edit.

Let me explain. So, my game has a horror/suspense theme, so the player walks much slower than in normal RPG Maker games, and has a sprint when they are being chased. To make this smooth, I am using Gary CXJk's Free Movement script, which adds 8 directional pixel-based movement, free of the grid. To slow the player down to about a third of what is normal, I have changed a line in Game_CharacterBase, in the definition of distance_per_frame. This can be found on lines 135-137.

  def distance_per_frame
    2 ** real_move_speed / 768.0
  end

Normally, that 768 value is 256. By tripling it, it thirds the speed of the player. However, in doing this, the player's sprite will visually vibrate when walking in certain directions. The actual directions this occurs in vary considerably, and I have seen it occur on every direction, simply not all at the same time. There is always at least one direction that behaves normally, usually an orthogonal.

The only values at which I have not seen the vibrations occur is the default, 256, and double that, 512. However, 512 is still a bit too quick, and it makes the walking animations of the player look strange, in my opinion. This is also the reason I am not using the built-in functions to slow the player, as only x2, x4, and x8 speeds are offered, when I need a x3 option.

Thank you for reading this, and for any help you can offer solving this issue, of any other solutions you can offer.

 

[Roninator2]

I need a x3 option

You can do that in a script call.
$game_player.move_speed = 3
Just set it at the start of your game.
There are also scripts to let you adjust the speed in different ways.
If I recall correctly, you can also use halves. i.e. 3.5

 

[Robert-Character Creator]

Really now? I didn't know such a thing was possible. Let me try it out.

...

Well then, it works. I had to set it to 2.5 to get it where I wanted it, for some reason, but it works! HOWEVER, the vibrating is still happening, which is strange. Any idea why? I have a custom sprite, but this happens even with a default one.

Edit: Also, when I test that script call in an empty project, the game crashes. Any idea why that happens, as well?

 

[Roninator2]

the game crashes.

Sorry, I just remembered that it was possible. Forgot that it is reliant on a script adjustment.

class Game_Player < Game_Character
  attr_writer :move_speed
end

Script Call to Change Speed?

I would like to know the script call that will allow you to change an actor's speed from the "Script..." function of "Set Move Route". Also, would it allow decimals? And for reference, would 4 be normal, and 6 be x4 Faster? Also, this would be for RPG Maker VX Ace [RGSS3].

forums.rpgmakerweb.com

Did you change the Distance_per_frame back to 256?
def distance_per_frame
2 ** real_move_speed / 256.0
end

 

[Robert-Character Creator]

Okay @Roninator2 . Sorry for the late reply, had to sleep. With that snippet, it works in the empty project. However, the sprite still vibrates. And yes, I set the number back to 256 on both projects. I made sure to do that first thing. The only script present is the Free Movement script. If I remove that script, the vibrating stops, but then I'm constrained to the grid again, which is not going to work in my project.

 

[Roninator2]

Can you show the vibrating?

 

[Robert-Character Creator]

Yes, I can. I'll have to record it tomorrow now, because I didn't see your edit until now, and I work in the morning. Please reply if you see this, so I don't have to wait three days to not double-post.

 

[Roninator2]

It would not be just for me, but for other people as well. I may not be able to find the answer.

 

[Robert-Character Creator]

A friend of mine messaged me with the answer last night! There's a script under Bug Fixes called 'Event Jitter Fix'. I never noticed it sitting there before, and I'm not sure where it came from, as it was in my blank project as well. Removing it fixed the bug! That's the solution!