Small Pathfinder. No more manual move-routes necessary!

[khkramer]

I've made a modified version of pbMoveTowardPlayer, which allows an event to move towards another event instead of the player ( handy for cutscenes etc where positions are dynamic ).

Here is the script, place it somewhere above main:

Spoiler:

class Game_Character
  def move_toward_event(event)
    sx = @x - event.x
    sy = @y - event.y
    if sx == 0 and sy == 0
      return
    end
    abs_sx = sx.abs
    abs_sy = sy.abs
    if abs_sx == abs_sy
      (rand(2) == 0) ? abs_sx += 1 : abs_sy += 1
    end
    if abs_sx > abs_sy
      sx > 0 ? move_left : move_right
      if not moving? and sy != 0
        sy > 0 ? move_up : move_down
      end
    else
      sy > 0 ? move_up : move_down
      if not moving? and sx != 0
        sx > 0 ? move_left : move_right
      end
    end
  end
  
  def move_toward_position(x, y)
    sx = @x - x
    sy = @y - y
    if sx == 0 and sy == 0
      return
    end
    abs_sx = sx.abs
    abs_sy = sy.abs
    if abs_sx == abs_sy
      (rand(2) == 0) ? abs_sx += 1 : abs_sy += 1
    end
    if abs_sx > abs_sy
      sx > 0 ? move_left : move_right
      if not moving? and sy != 0
        sy > 0 ? move_up : move_down
      end
    else
      sy > 0 ? move_up : move_down
      if not moving? and sx != 0
        sx > 0 ? move_left : move_right
      end
    end
  end
end

def getEventByName(name)
  if name.is_a?(Symbol)
    name = name.to_s
  end
  
  $game_map.events.values.each do |event|
    return event if event.name.downcase == name.downcase
  end
  
  return nil
end

def _resolveEvent(event)
  if event.is_a?(Game_Event)
    return event
  end
  
  if event.is_a?(Numeric)
    return get_character(event)
  end
  
  return getEventByName(event) # Symbol or string
end

def pbMoveTowardEvent(event, otherEvent)
  event = _resolveEvent(event)
  otherEvent = _resolveEvent(otherEvent)
  
  maxsize=[$game_map.width,$game_map.height].max
  #return if !pbEventCanReachPlayer?(event,otherEvent,maxsize)
  loop do
    x=event.x
    y=event.y
    event.move_toward_event(otherEvent)
    break if event.x==x && event.y==y
    while event.moving?
      Graphics.update
      Input.update
      pbUpdateSceneMap
    end
  end
  $PokemonMap.addMovedEvent(event.id) if $PokemonMap
end

def pbMoveTowardPosition(event, x, y)
  event = _resolveEvent(event)
    
  maxsize=[$game_map.width,$game_map.height].max
  #return if !pbEventCanReachPlayer?(event,otherEvent,maxsize)
  loop do
    event.move_toward_position(x, y)
    break if event.x==x && event.y==y
    while event.moving?
      Graphics.update
      Input.update
      pbUpdateSceneMap
    end
  end
  $PokemonMap.addMovedEvent(event.id) if $PokemonMap
end

The script can be used in an event like this:

pbMoveTowardEvent(:Distraction, :Oak)

Where :Distraction and :Redwood are the names of the respective events ( case insensitive ).

Or to move to a specified position instead:

pbMoveTowardPosition(:Distraction, 24, 15)

Where :Distraction is the event's name, 24 is the X, and 15 is the Y.


Hope this is useful for some of you :)
If you find any bugs or have a suggestion, please let me know.

 

[Lionhearted]

This script looks great! Nice idea, I'm definitely going to try it out! :3

 

[Jazerules]

Tested works okay. Some few things I found.

1. When the destination event is too far on the same map ( which you won't see if it is reaching the target),
it waits like forever to move as if waiting for the event to finish but the game won't freeze as all animation in the map still moving.

2. When blocked by moving event the game freezes and restarts.

3. When the destination has wide obstacle in front, it just stay in the obstacle and not finding its way around on the target.

Overall it is working good. Thanks for this beautiful script.

 

[khkramer]

Tested works okay. Some few things I found.

1. When the destination event is too far on the same map ( which you won't see if it is reaching the target),
it waits like forever to move as if waiting for the event to finish but the game won't freeze as all animation in the map still moving.

2. When blocked by moving event the game freezes and restarts.

3. When the destination has wide obstacle in front, it just stay in the obstacle and not finding its way around on the target.

Overall it is working good. Thanks for this beautiful script.

Thanks for the feedback.
I know it's a late response on my end but I'll be updating the script this week with fixes for these issues.

 

[The Dewitty]

This could be really useful! Have the bugs mentioned by Jazerules been fixed?

 

[khkramer]

This could be really useful! Have the bugs mentioned by Jazerules been fixed?

Few months later and I still haven't fixed them :3c
That's mostly cause this was intended as a really simple script, and I myself use it 90% for movement in indoor cutscenes. In situations like that it works perfectly fine.

I did at one point have another pathfinder script based on an A* pathfinder edited to work with essentials which is much more useful for the problems described by Jazerules: dealing with obstacles, long distances etc. I'm going search my PC to see if I still got the script and if so I intend to release it here since I've picked up fangame development again.