Game replay system

[Tsukihime 1,489]

So after some consideration, I have thought of something that might be remotely interesting to create using my Event Wrapper script.

 

EDIT: forget game camera, I'm just going for replays since it's easier lol

 

It is functionality that allows you to create game replays.

Sort of. Currently I'm only thinking of on-map stuff, not things like battles.

 

Won't automatically support things like ABS.

 

 

So the script is basically a "route recorder": every character keeps an instance of a "recorded_route" MoveRoute object.

 

You can then take that move route and plug it into another event and have it follow the same steps that the original event had moved. In the case of a replay cut-scene, you might use a script call to setup the cut-scene, and then transfer the player to that scene to watch the "video".

 

Here is a demo of the route capture idea (honestly I only spent a couple minutes so it's nothing fancy):

 

http://db.tt/FnVP88Nh

 

But now I'm not sure how to proceed. Any ideas?

Edited July 21, 2012 by Tsukihime

[Cidiomar 39]

You can grab a "shadow" of everything in $game_* and of the scene, record all Input actions and try to put everytinhg in action together.

[Tsukihime 1,489]

I think the hard part would be recording the inputs. As well as stuff generated at run-time.

 

But sure I can just go into the methods that check for player input and then add some extra "recording" lines and create some custom "command" objects.

 

I'll probably need to write an interpreter with a set of syntax for handling things like scene calls, confirmations, and other things to simulate keystrokes at certain times. Oh and I will also need to record the frame count that they occur...

 

Replay system seems pretty long! LOL I should aim for something that takes less time otherwise I might just get bored halfway.

 

I'll just start with providing a good way of recording movement.

Edited July 22, 2012 by Tsukihime

[Cidiomar 39]

**UPDATED

 

module Input

#----------

GetKeyboardState = Win32API.new('user32.dll', 'GetKeyboardState', 'I', 'c')

SetKeyboardState = Win32API.new('user32.dll', 'SetKeyboardState', 'I', 'c')

#----------

@input_queue = []

@recording = false

@playing = false

#----------

class << self

#----------

def start_input_record

@input_queue.clear#@input_queue.each {|q| DL.free(q.to_i)} # > Not sure with DL free the allocated memory with the object

@recording = true

@playing = false

end

#----------

def stop_input_record

@recording = false

@playing = false

end

#----------

def play_recorded_input

@recording = false

@playing = true

end

#----------

def stop_playing

@playing = false

end

#----------

def next_input

unless (ptr = @input_queue.delete_at(0))

stop_playing

return

end

# DL.free(ptr.to_i) # I know

SetKeyboardState.call ptr

end

#----------

alias :play_input_or_not :update

def update

if @recording

ptr = DL::CPtr.malloc(256)

GetKeyboardState.call(ptr.to_i)

# 0.upto(5) {|u| ptr = 0} # Exclude Mouse

@input_queue << ptr

end

#-----

next_input if @playing

#-----

play_input_or_not

end

#----------

end

end

Edited July 22, 2012 by Cidiomar

[Tsukihime 1,489]

Pretty cool.

Can I also send keystrokes through script calls?

I'm not sure how it determines which key is sent in order to write some wrapper methods.

 

One thing:

 

@input_queue = []

 

at the top doesn't run for so it complains that it's nil.

Not sure why though.

Edited July 22, 2012 by Tsukihime

[Cidiomar 39]

Tested, everything working now.

Script updated in the post

[Tsukihime 1,489]

How do I modify the script so that it adds a keystroke when I press a certain button?

That way it's not adding a new element to the array every frame when I don't really need it.