Why might a particle emitter sometimes unsync its direction and/or position with its parent object?
web, reload a couple times and you should get the bug: https://moonshot.randomairborne.dev
code: https://github.com/randomairborne/moonshot
#Particle system unsyncs from parent object
junior tundra
junior tundra
if you hit the upp arrow, it seems to shoot up for some reason as well?
junior tundra
Yeah, it's just kinda going crazy still. Not sure why this might be happening?
molten venture
Why might a particle emitter sometimes unsync its direction and/or position with...
How is your scene tree set up?
Like just send a screenshot of it
junior tundra
extends RigidBody2D
const ENGINE_FORCE = Vector2(0, -100000)
const BOOST_FORCE = Vector2(0, -50000)
const FIN_FORCE = 500000
var plume = null
func _ready() -> void:
plume = get_node("./MainEnginePlume")
func _integrate_forces(state: PhysicsDirectBodyState2D) -> void:
if Input.is_action_pressed("turn_left"):
state.apply_torque(-FIN_FORCE)
if Input.is_action_pressed("turn_right"):
state.apply_torque(FIN_FORCE)
if Input.is_action_pressed("cut_engine"):
plume.emitting = false
else:
state.apply_central_force(ENGINE_FORCE.rotated(rotation))
plume.emitting = true
if Input.is_action_pressed("boost"):
state.apply_central_force(BOOST_FORCE.rotated(rotation))
Not to be "that guy" but you can get the plume node in an easier way with
@onready var plume = $MainEnginePlume
ooooo thanks
potentially important piece of information: if i cut the engine, setting emitting to false, and then set it back to true, the problem seems to be fixed
molten venture
potentially important piece of information: if i cut the engine, setting emittin...
That's very helpful to debugging I think 😅
Sadly I'm not very experienced within the physics-simulation side of Godot, but I'll do my best here
Where on the rocket is the particle emitter situated?
molten venture
The desync also happens if you change directions and crash into stuff enough. Actually, it's there from the beginning. If I just keep going up, the particles eventually look like they're coming from the window. Do print statements for positions (both local and global) as well as roations for the rocket and the particle emitter to debug. That's all I say, sorry
junior tundra
The desync also happens if you change directions and crash into stuff enough. Ac...
alright, will do
thanks
the problem is not to do with the rotation, which is weird
molten venture
I have a suspicion that the torque and the particle emitter are not playing nice, might wanna debug that as well and play around with it
junior tundra
I have a suspicion that the torque and the particle emitter are not playing nice...
that’s possible? but even before there’s torque the bug exists.