How to make parts non collidable with only each other, but collidable with anything else?

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#1

So i’m making a tycoon, and there’s a dropper that drops ore.
What i need is that the ores can collide with the floor, conveyor or anything else, but not with each other.
The ores are in a model by the way
I’ve tried collision groups, but i never got the hang of it. Help please!

1 Like
#2

Create a collision group this way:

local ps = game:GetService("PhysicsService")
local group = ps:CreateCollisionGroup("OreParts") -- Returns a unique ID but we won't be needing it.

Then make it so parts in that group can’t collide with anything in the same group:

ps:CollisionGroupSetCollidable("OreParts", "OreParts", false)

Then, most importantly, each time an ore is added to the game you do this:

ps:SetPartCollisionGroup(newPart, "OreParts")
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#3

Try the NoCollisionConstraint

Simply select the two parts you don’t want to collide.

Collision groups are better for much larger sets of parts.

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#4

If OP is creating the dropper + conveyor belt type system that we see in classic tycoon games then he should definitely use collision groups.

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#5

Yep, definitely. I managed to miss the fact it was a dropper making lots of these.

Definitely collision groups.

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#6

Oh! I didn’t know you could set the same collision group to non collide false!

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#7

Could you help me with this please

local ps = game:GetService("PhysicsService")
local group = ps:CreateCollisionGroup("Ships")
ps:CollisionGroupSetCollidable("Ships", "Ships", false)
local rs = game.ReplicatedStorage
rs.collidetest.Event:Connect(function(t)
	for I = 1 , #t do


		if t.ClassName == "Part" or t.ClassName == "Seat" then

			ps:SetPartCollisionGroup(t, "Ships")
	print("p")
end
		end
end)

The event fires and the script and print go through but the parts still collide with eachother

#8

nvm it was deprecated rsdfdfghdfghdfg