Jump to content

Ambient NPC population ... a continuation of an idea.

Marleys Ghost


Last September I mused about the concept of what I call Ambient NPC populations, I spent a lot of time researching (read playing) certain games that have what I call an ambient NPC population. This is specifically those NPC's that reside in the background and generally have no real or very limited interaction with the player, but may have some limited interaction with each other or the surroundings.


I felt a new approach would be needed to sort through what was and was not required to achieve a similar environment in LE, I decided first to create the environment and to then set about, at different levels, adding in the ambient NPC population, the thought behind this was it would be easier to visualise what I wanted to see taking place, if it took place ... in place ... not the best description but I hope you will understand what I mean.


So the first step is to create a small village environment and then to start adding in the population.


Test/concept scene (test application screenshot): The Village of Swanwyck




The important thing with this small test village level will be the roads/paths, as the first tier of the population will basically be simple "walkers".


Even now, I am still formulating the different types required from "walkers" to simple "static actors" and how to implement some of those types to have different interaction levels. I will be utilising several different methods to allow the NPC's to navigate Swanwyck, from a simple "follow node" approach to predefined path data and on the fly A* navigation.


I did have some very good results with A* pathfinding already, which can be read about here:


A* Pathfinding Using Blitzmax And Leadwerks Engine


Hopefully I can find the time to get "Swanwyck" up to a usable standard, and get the first tier of the "walking" population up and running.


Recommended Comments

That looks very promising Marley. What a beautifull screenshot of the town.


I have a question about the A* pathfinding: how do you make the grid? I can think of a way for terrains but how do you handle models that have different floors?

Share this comment

Link to comment

Hi Aggror, So far I have avoided models with interiors that include an upstairs. My approach to making the node data was at best limited and quickly thrown together as proof of concept. Navmeshes/waypoints and a square on a grid are basically just ways of generating the node data. With different floors, you need to remember the new degrees of freedom, not just x and z but y as well. Which is why, IMHO, a navmesh would better serve this purpose. Or more basic, a collection of pathnodes.

Share this comment

Link to comment

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Add a comment...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Blog Entries

    • By Josh in Josh's Dev Blog 4
      Here are some screenshots showing more complex interface items scaled at different resolutions. First, here is the interface at 100% scaling:

      And here is the same interface at the same screen resolution, with the DPI scaling turned up to 150%:

      The code to control this is sort of complex, and I don't care. GUI resolution independence is a complicated thing, so the goal should be to create a system that does what it is supposed to do reliably, not to make complicated things simpler at the expense of functionality.
      function widget:Draw(x,y,width,height) local scale = self.gui:GetScale() self.primitives[1].size = iVec2(self.size.x, self.size.y - self.tabsize.y * scale) self.primitives[2].size = iVec2(self.size.x, self.size.y - self.tabsize.y * scale) --Tabs local n local tabpos = 0 for n = 1, #self.items do local tw = self:TabWidth(n) * scale if n * 3 > #self.primitives - 2 then self:AddRect(iVec2(tabpos,0), iVec2(tw, self.tabsize.y * scale), self.bordercolor, false, self.itemcornerradius * scale) self:AddRect(iVec2(tabpos+1,1), iVec2(tw, self.tabsize.y * scale) - iVec2(2 * scale,-1 * scale), self.backgroundcolor, false, self.itemcornerradius * scale) self:AddTextRect(self.items[n].text, iVec2(tabpos,0), iVec2(tw, self.tabsize.y*scale), self.textcolor, TEXT_CENTER + TEXT_MIDDLE) end if self:SelectedItem() == n then self.primitives[2 + (n - 1) * 3 + 1].position = iVec2(tabpos, 0) self.primitives[2 + (n - 1) * 3 + 1].size = iVec2(tw, self.tabsize.y * scale) + iVec2(0,2) self.primitives[2 + (n - 1) * 3 + 2].position = iVec2(tabpos + 1, 1) self.primitives[2 + (n - 1) * 3 + 2].color = self.selectedtabcolor self.primitives[2 + (n - 1) * 3 + 2].size = iVec2(tw, self.tabsize.y * scale) - iVec2(2,-1) self.primitives[2 + (n - 1) * 3 + 3].color = self.hoveredtextcolor self.primitives[2 + (n - 1) * 3 + 1].position = iVec2(tabpos,0) self.primitives[2 + (n - 1) * 3 + 2].position = iVec2(tabpos + 1, 1) self.primitives[2 + (n - 1) * 3 + 3].position = iVec2(tabpos,0) else self.primitives[2 + (n - 1) * 3 + 1].size = iVec2(tw, self.tabsize.y * scale) self.primitives[2 + (n - 1) * 3 + 2].color = self.tabcolor self.primitives[2 + (n - 1) * 3 + 2].size = iVec2(tw, self.tabsize.y * scale) - iVec2(2,2) if n == self.hovereditem then self.primitives[2 + (n - 1) * 3 + 3].color = self.hoveredtextcolor else self.primitives[2 + (n - 1) * 3 + 3].color = self.textcolor end self.primitives[2 + (n - 1) * 3 + 1].position = iVec2(tabpos,2) self.primitives[2 + (n - 1) * 3 + 2].position = iVec2(tabpos + 1, 3) self.primitives[2 + (n - 1) * 3 + 3].position = iVec2(tabpos,2) end self.primitives[2 + (n - 1) * 3 + 3].text = self.items[n].text tabpos = tabpos + tw - 2 end end  
    • By 💎Yue💎 in Dev Log 5
      The prototype of a four-wheeled vehicle is completed, where the third person player can get on and off the vehicle by pressing the E key.  To move the vehicle either forward or backward, is done with the keys W, and the key S, to brake with the space key.  And the principle is the same as when driving the character, a third person camera goes behind the car orbiting 360 degrees.

      I don't think the vehicle is that bad, but I'm absolutely sure it can be improved.  The idea is that this explorer works with batteries, which eventually run out during the night when there is no sunlight.
      Translated with www.DeepL.com/Translator
      Mechanics of the game.
      I'm going to focus on the mechanics of the game, establish starting point (Landing area), after the orbiter accident on Mars where all your companions died, now, to survive, you will have to repair your suit, oxygen runs out, good luck.  This involves replacing the oxygen condenser that is failing and the suit is stuck.

      On the ground and performance.
      The rocks, the terrain and the vehicle kill the SPF, but there is a solution, and everything is related to the chassis of the vehicle. That is to say that if I put a simple collision bucket for the vehicle, the yield recovers, something that does not happen if I put a collider of precise calculation for the car. This has the advantage of better performance but is not very accurate, especially when the car crashes with an object in front, because the horn of the car has no collision. And the solution to this, is to put a sliding joint, as was done with the area in which the player climbs the car and descends from it.

      On the rocks, I am trying to make them with the slightest polygons and the most distant from each other. 
      Obviously on Mars I can not create canyons, high mountains, is because the terrain does not produce shadows on itself, that's why the terrain tries to be as flat as possible, simulating a desert with dunes. 

      That's all for now.
    • By 💎Yue💎 in Dev Log 9
      The prototype is finished, and the mechanics of the game can be given way.  It has established a desert terrain in the form of dunes, this implies that there are no cannons or anything similar, because Leadwerks does not allow a terrain to cast shadows on that same terrain and this looks visually rare.
      So the terrain is like low-slope dunes. On the other hand, I think the texture of the terrain is already the definitive one, with the possibility of changes and suggestions on the part of those involved in this project.
      On the other hand we have taken the model of a habitat of the nasa, which certainly looks very nice. 
      The next steps, are to establish the starting point of the player, this must start near the capsule return to Mars somewhere on the map of 2024 x 2.
      And think about the first thing you should do, repair your suit? Seek a shelter? things like that.  

  • Create New...