Randomly spawning objects

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#1

Hello,

I am trying to make a basic survival game. I know this is a very competitive genre, but I am still going to try. I have run into a bit of an issue.

I am using the recently published “Infinite Terrain Plugin” plugin for map generation (It should be noted that the plugin renders terrain client-side). Now, as goes for any survival game, I need a way of gathering stuff.

RobloxScreenShot20210822_192601944
RobloxScreenShot20210822_1926019441646×674 70.9 KB

I have no idea how, to even begin spawning trees randomly. I have been looking for an answer for weeks (with no results).

Here comes my question: Can this be done?

These should be noted:
.

  • Objects should spawn server-side
  • Cutting down a tree, will remove it for all clients.
  • Is not hard on resources
  • System does not have a big delay

.
Thanks in advance,
greipster

#2

Couldn’t you just spawn them in a random position and then fire a remote function to the client to get the correct Y position in relation to the terrain?

1 Like
#3

How do you suppose I get the Y from the client?

  • I call the client for the Y
  • Client gets the position and ?
#4

Well I’d start the Y position out pretty high so that it wouldn’t be inside of any terrain. Then on the client I’d shoot a ray down untill it hits the terrain and then move the tree down the length of the ray. If you’re not quite sure how to do that I can send a few bits of code for you.

#5

I was just reasearching Raycasting, but I think, that I’d probably get it working faster with some guidance.

#6

It would be better for you if you learned it yourself. You will remember it better that way. However, if you get stuck I’ll be glad to help.

1 Like
#7

edit: You-Tube could also help

1 Like
#8

You could have the server generate it out to a certain distance at startup which would require an initial load maybe

2 Likes
#9

@JamminRedPandaMan also, I might seem stupid, but, which client do I send the function to?

1 Like
#10

Well if you want the trees to load when the player joins you should probably do something like this

game.Players.PlayerAdded:Connect(function(player)
     -- you can send it to the "player" parameter like this
     remoteEvent:FireClient(player)
end)

Make sure you load the tree to a random position on the server first though.

1 Like
#11

Or if you wanted to load the trees at a certain time you could use :FireAllClients()

2 Likes
#12

Hold on I just relized this would run every time a player joins the game. Is this a single player survival game?

#13

There is a centralized lobby, but the games themselves are ran on “private” servers, if thats what you mean.

And also, I’m very insecure about this code:

Server

local event = game:GetService("ReplicatedStorage").Events.positionTrees

game:GetService("Players").PlayerAdded:Connect(function(plr)
	
	event:FireClient(plr)
	
end)

Client

local event = game:GetService("ReplicatedStorage").Events.positionTrees
local trees = {}

event.OnClientEvent:Connect(function()
	
	for i, v in pairs(game:GetService("Workspace").Trees:GetChildren()) do
		
		if v and v.Name == "Tree" and not (table.find(trees, v)) then
			
			table.insert(trees, v)
			local pos = v.Position
			
			
			--                  [RAYCAST STUFF]							--
			local rayOrigin = pos
			local rayDirection = Vector3.new(0, -210, 0)
			
			local raycastParams = RaycastParams.new()
			raycastParams.FilterDescendantsInstances = {v}
			raycastParams.FilterType = Enum.RaycastFilterType.Blacklist
			
			local raycastResult = workspace:Raycast(rayOrigin, rayDirection, raycastParams)
			
			if raycastResult then
				
				local targetMaterial = raycastResult.Material
				local targetPos = raycastResult.Position
				local targetInstance = raycastResult.Instance
				
				if targetInstance == game:GetService("Workspace").Terrain and targetMaterial ~= Enum.Material.Water then
					
					-- position the tree
					
				end
				
			end
			--		--			--			--				--			--
			
		end
		
	end
	
end)
#14

How would I go about spawning the around the map without creating much lag @JamminRedPandaMan ?

#15

What in the world did I send you?! That is not how I raycast :joy:. Let me get some code I’ll get back to you soon.

1 Like
#16

I mean it works? Is there a more efficient way?

#17

You tested it and it works? (30)

#18

This works kinda

if not game.Loaded then game.Loaded:Wait() end
local event = game:GetService("ReplicatedStorage").Events.positionTrees
local trees = {}

event.OnClientEvent:Connect(function()
	
	for i, v in pairs(game:GetService("Workspace").Trees:GetChildren()) do
		
		if v and v.Name == "Tree" and not (table.find(trees, v)) then
			
			table.insert(trees, v)
			local pos = v.Position
			
			--                  [RAYCAST STUFF]							--
			local rayOrigin = pos
			local rayDirection = Vector3.new(0, -210, 0)
			
			local raycastParams = RaycastParams.new()
			raycastParams.FilterDescendantsInstances = {v}
			raycastParams.FilterType = Enum.RaycastFilterType.Blacklist
			
			local raycastResult = workspace:Raycast(rayOrigin, rayDirection, raycastParams)
			
			if raycastResult then
				
				local targetMaterial = raycastResult.Material
				local targetPos = raycastResult.Position
				local targetInstance = raycastResult.Instance
				
				if targetInstance == game:GetService("Workspace").Terrain and targetMaterial ~= Enum.Material.Water then
					
					v.Position = targetPos + Vector3.new(0, 7, 0)
					
				end
				
			end
			--		--			--			--				--			--
			
		end
		
	end
	
end)
#19

The problem seems to be that it only moves the first few trees.

#20

Any errors? (30))))))))))))))))