Gelzo
July 9, 2025, 6:13pm
1
I’m creating alot of objects and then deleting them. Should I use a pooling system instead?
local function what_to_spawn(self)
self.fruits = {
{ path = "/assets/objects/bacteria/bacteria_1.goc", preview = "bacteria_1" },
{ path = "/assets/objects/bacteria/bacteria_2.goc", preview = "bacteria_2" },
{ path = "/assets/objects/bacteria/bacteria_3.goc", preview = "bacteria_3" },
{ path = "/assets/objects/bacteria/bacteria_4.goc", preview = "bacteria_4" },
{ path = "/assets/objects/bacteria/bacteria_5.goc", preview = "bacteria_5" },
{ path = "/assets/objects/bacteria/bacteria_6.goc", preview = "bacteria_6" },
{ path = "/assets/objects/bacteria/bacteria_7.goc", preview = "bacteria_7" },
{ path = "/assets/objects/bacteria/bacteria_8.goc", preview = "bacteria_8" },
{ path = "/assets/objects/bacteria/bacteria_9.goc", preview = "bacteria_9" }
}
local random_index = math.random(1, #self.fruits)
local fruit = self.fruits[random_index]
print("random_index".. random_index)
self.current_fruit = fruit -- save for later spawn
msg.post("GUI", "send_fruit_preview", { preview = fruit.preview })
-- Prepare the factory for later creation
-- factory.unload("factory_go#factory")
factory.set_prototype("factory_go#factory", fruit.path)
end
function init(self)
msg.post(".", "acquire_input_focus")
what_to_spawn(self)
end
local function spawn_random(self)
if not self.current_fruit then
return
end
local position = go.get_position("mover")
-- factory.create(component, p, nil, { score = 10 }, 2.0) -- <1>
self.enemy_id = factory.create("factory_go#factory", position + vmath.vector3(0, -20, 0), nil, nil, 1.5)
-- Immediately pick the next one to preview
what_to_spawn(self)
end
function on_input(self, action_id, action)
if action_id == hash("touch") and action.pressed then
spawn_random(self)
sound.play("audio#instance_sound")
end
end
local has_check_memory = true
function update(self, dt)
if has_check_memory then
has_check_memory = false
timer.delay(0.5, false, function()
print("Lua memory:", collectgarbage("count"), "KB")
has_check_memory = true
end)
end
end
How many?
HTML crashes due to : (PANIC: unprotected error in call to Lua API (not enough memory))
Increase the heap count:
Defold does pooling in the engine. It is not recommended to add another pooling system on top of it.
1 Like
Gelzo:
factory.set_prototype
For the experiment, please stop using this function, try to use separate factory for the each ‘.go’ file. Will there be an error?*
* (this is generally how it should be done, and factory.set_prototype is, in my opinion, intended for completely different purposes)
2 Likes
Gelzo
July 9, 2025, 9:27pm
4
britzl:
How many?
They add up to like 50-70 sprites with rigidbody with collider
1 Like
That is a quite low number of sprites, so that shouldn’t be a problem.
We rarely see the “panic” type of issues, so it would be good if you could report this issue on github and also attach a small repro case, with repro steps, to help us test the issue.
1 Like
Gelzo
July 9, 2025, 9:40pm
6
i instantiate 1 per click and then delete when it collides with another gameobject of the same group but after creating 100s of them and deleting on collision(but the total in-game remains at about 50 gameobjects) for a certain amount of time then it crashes at a certain point saying it ran out of memory in console of google chrome
I’ll do some profiling quickly
Gelzo
July 9, 2025, 10:49pm
7
Can anyone help? I can’t replicate on my pc the memory remains stable (I played for a couple of minutes and nothing went wrong). I tried again google and it failed but heap remained under my heap size set in html settings
This is the error that happened in my browser.
Heap size in html:256mb
Error Log.txt (20.8 KB)
Gelzo
July 9, 2025, 11:40pm
8
still getting error when I increase heap size to 512
Gelzo
July 10, 2025, 2:50am
10
What could be causing this increase in heap?
What version of Defold are you using?
Gelzo
July 10, 2025, 8:00am
12
1.10.1. I thought that latest version but i see there has been an update but i don’t know if it’ll fix but I check but i don’t see anything fixes related to html
It sometimes goes up to 1.9 gb heap
Gelzo:
fixes related to html
As you’re getting a Lua error, also check for Lua related fixes.Or other memory related fxes etc..
1 Like
It was fixed in 1.10.2 - Memory leak in empty HTML5 project over time · Issue #10613 · defold/defold · GitHub
In Defold, it is important to always use the latest version. There is no point in using older versions.
2 Likes
Gelzo
July 10, 2025, 9:00am
15
ok problem solved. I just needed to update my version to 1.10.3 Thanks
1 Like
