Avoiving the Guards Topic

366

10/10/2012 12:49 AM

This is one of the oldest challanges in RPGs. Walk into a dungeon or prison, avoiding the guards seeing you. If they do, then it's "I see you" and start over. Is there a way to do this using events? I can't find anything in the conditional branches that even allow for such things.

chana

(Socrates would certainly not contadict me!)

1584

10/10/2012 01:27 AM

...well, someone will tell you much better than I can (sorry, started this post and realized it was a bit more complex than I thought).

Craze

why would i heal when i could equip a morningstar

15170

10/10/2012 01:58 AM

You need to find the direction that the guard is facing, the distance between the guard and the player, and whether or not any obstacles are in the way. The last issue is likely the hardest to solve.

LockeZ

I'd really like to get rid of LockeZ. His play style is way too unpredictable. He's always like this too. If he ran a country, he'd just kill and imprison people at random until crime stopped.

5958

10/10/2012 02:13 AM

I will say that using scripts it is much simpler. As in, it's only one line of event commands, with no variables, because the script already did all the work for you.

You need a script called "View Range Module", written by Near Fantastica. Instead of sending you around the internet hunting for it, I'll just paste it here:

#==============================================================================
# ■ View Range Module
#==============================================================================
# Near Fantastica
# Version 4
# 29.11.05
#==============================================================================

#--------------------------------------------------------------------------
# * SDK Log Script
#--------------------------------------------------------------------------
#SDK.log("View Range", "Near Fantastica", 4, "29.11.05")

#--------------------------------------------------------------------------
# * Begin SDK Enable Test
#--------------------------------------------------------------------------
#if SDK.state("View Range") == true
  module VR
    #----------------------------------------------------------------------------
    def VR.in_range?(element, object, range)
      if range == 0
        return (element.x == object.x and element.y == object.y)
      end
      x = (element.x - object.x) * (element.x - object.x)
      y = (element.y - object.y) * (element.y - object.y)
      r = x + y
      if r <= (range * range)
        return true
      else
        return false
      end
    end
    #----------------------------------------------------------------------------
    def VR.range(element, object)
      x = (element.x - object.x) * (element.x - object.x)
      y = (element.y - object.y) * (element.y - object.y)
      r = x + y
      r = Math.sqrt(r)
      return r.to_i
    end
    #----------------------------------------------------------------------------
    def VR.facing?(element, object, direct = false)
      if direct
        case element.direction
        when 2 # DOWN
          return true if (object.y > element.y) and (object.x == element.x)
        when 4 # LEFT
          return true if (object.x < element.x) and (object.y == element.y)
        when 6 # RIGHT
          return true if (object.x > element.x) and (object.y == element.y)
        when 8 # UP
          return true if (object.y < element.y) and (object.x == element.x)
        end
      else
        case element.direction
        when 2 # DOWN
          return true if (object.y > element.y)
        when 4 # LEFT
          return true if (object.x < element.x)
        when 6 # RIGHT
          return true if (object.x > element.x)
        when 8 # UP
          return true if (object.y < element.y)
        end
      end
      return false
    end
  end
  
  #==============================================================================
  class Interpreter
    #----------------------------------------------------------------------------
    def event(id = nil)
      id = @event_id unless id
      return $game_map.events[id]
    end
  end
  
#--------------------------------------------------------------------------
# * End SDK Enable Test
#--------------------------------------------------------------------------
#end

Add that script to your game by opening the scripts screen, then inserting a new page of scripts somewhere above Main, and pasting that script code into the empty page.

You can then make the sentry event a parallel process. Give it a conditional branch, with the condition being the script line:

VR.in_range?($game_player, $game_map.events[@event_id], 5) and VR.facing?($game_map.events[@event_id], $game_player)

5 is the number of tiles away the hero can be. Change the 5 to some other number if you want. This will make anything in the conditional branch only happen when the event is facing the hero and less than 5 tiles away.

If you want the guards to only see the hero if they're looking directly at him - as in, if he's diagonal from the guard, they can't see him - use this line instead:

VR.in_range?($game_player, $game_map.events[@event_id], 5) and VR.facing?($game_map.events[@event_id], $game_player, true)

If you want walls to block vision, you're going to need to find a pathfinding script and do something a lot more complex, or else just make all the walls thick enough that the guards' sight range doesn't go through them.

Caz

LET'SBIAN DO THIS.

6813

10/10/2012 10:39 AM

I currently have it evented for my Halloween entry and I can tell you it's a pain in the ass. LockeZ's script will be much, much easier and probably less buggy.

Verincia

366

10/10/2012 04:29 PM

Thank you. I have tested the script, and have found it well enough. I'm still very new with scripting so I am still getting use to that aspect of RPG Maker.

[XP] AVOIVING THE GUARDS

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