Collision shape and process_mode cant work togheter ?!?

[jonPS]

Godot Version

4.4

Question

hello,
I have an enemy with 5 states… idlePatrol, idleAlert, shoot, pain, dead

when i change states i use ““set_process_mode”” to enable / disable the node states, and change the collisionBox and hurtBox shape using these functions

func _changeNode_FromTo( from, to ):
	from.set_process_mode(Node.PROCESS_MODE_DISABLED)
	to.set_process_mode(Node.PROCESS_MODE_INHERIT);
	velocity.x = 0;
	skel.anim_delayReset = true;
	$Timer.stop();
	skel.animPlayTimes = 0;

@onready var colBox = $collisionBox;
@onready var hurtShape = $direction/hurtBox/hurtShape

func _changeCollision( posY, sizeX, sizeY ): # on hold
	colBox.position.y = posY;
	colBox.shape.size.y = sizeY;
	hurtShape.position.y = posY;
	hurtShape.shape.size.x = sizeX;
	hurtShape.shape.size.y = sizeY;

ive printed the ““get_process_mode()”” in all nodes and… actives ones are 0 disabled ones are 4, so everything is correct

but i cant change the collision and hurtbox shape ?!?
if i use this on idlePatrol: _guard01._changeCollision(-90, 30, 180); # standing everything goes to hell ?!?

If i change the collision on the state node shoot, for shooting down_guard01._changeCollision(-64, 30, 128); # crouching, the collisionBox makes the enemy standing in the air ?!?

This only happens if i use “”_changeCollision"" in ““idlePatrol””… all the other states i can change the collision without any problem..

Does the ““func _process(_delta: float)”” is still running if PROCESS_MODE_DISABLED ?
Is this happening because ““idlePatrol”” process is set to inherit by default ?

Ive searched for hours and dont have anything in the code that messes with the nodes ““collisionBox”” and ““hurtBox shape””

should i make MRP… wth can we never change collision boxes in godot ?! something always goes wrong

[gentlemanhal]

It sounds like you are changing the collision shape in _process? You shouldn’t adjust physic properties in _process as this can cause a de-sync with the physics server.

Have you tried running your code in _physics_process instead?

Idle and Physics Processing

[jonPS]

I dont think it makes any diference…
Ive even made a new project with node states… idlePatrol, idleAlert, shoot, pain, dead

and change the collision in ““func _process”” and everything worked, the character doesnt stay on air when i change it to ““shoot””

################---------shoot node -------#############

func _process(_delta: float) -> void:
	plr.spr.texture = plr.txtDN
	plr._changeCollision(-18.25, 37.5);
	
	
	if ( Input.is_action_just_pressed("key_3") ):
		plr._changeNode_FromTo(plr.shoot, plr.idlePatrol)
		return

################---------player ( plr ) -------#############

func _changeCollision( posY, sizeY ):
	colBox.position.y = posY;
	colBox.shape.size.y = sizeY;


func _changeNode_FromTo( from, to ):
	from.set_process_mode(Node.PROCESS_MODE_DISABLED)
	to.set_process_mode(Node.PROCESS_MODE_INHERIT);

it seems iam going to have to comment/delete all my code, to find out what is going on… Iam never going to get rid of this and finished it

[jonPS]

@gentlemanhal

It sounds like you are changing the collision shape in _process? You shouldn’t adjust physic properties in _process as this can cause a de-sync with the physics server.

Have you tried running your code in _physics_process instead?

Idle and Physics Processing — Godot Engine (stable) documentation in English

thanks it worked ive changed it to:
func _physics_process(delta: float) -> void:

and the character no longer stay in air when going into the next "NODE state " with a diferente collision shape size… this is impossible to trigger… has changing the code doesnt do anything, its like “_process” is running way ahead of the code,
has the character only goes to the previous state when the frame reaches 4…

***** shoot node *****

		stGetUP:
			skel._playAnim( _guard01.animCrouchOUT, 0.1, false );
			if ( skel.animFrame == 4 && skel.nextFrame == true ): #### only when frame is 4 but collision is already another and the character is in the air
				stateShoot = skel._changeState(stShootExit);
				
				
		
		stShootExit:
			_setAreaUPDN(false);
			_setArea(false);
			_guard01._changeNode_FromTo(_guard01.shoot, _guard01.idleAlert ); ###--going to node2D idleAlert 
			#_guard01.idleAlert.stateAlert = _guard01.idleAlert.stWalk;

when the character is in state ““stGetUP”” the collision shape size changes to the collision shape size in "idleAlert " then it changes back to the collision shape size in “shoot”

its really strange because iam not using ““physics”” for anything…???.. just changing from one NODE to another by using:

set_process_mode(Node.PROCESS_MODE_DISABLED)
set_process_mode(Node.PROCESS_MODE_INHERIT);

[jonPS]

[edit]
never mind it still doesnt work… when i get all states running togheter, the character stay in the air again…
changing the collision shape only work with 2 nodes, once there are 3 nodes being used the shape no longer changes… collisions are all screwdUp

[jonPS]

found the problem…
I have about 5 enemies duplicate in the level… for some reason i think they are all sharing the same collision shape…

If i only use 1 enemy it works normally
If there a way to set a collision Shape2D unique to that instance ?
In code or any other way ?

Since in the editor when i duplicate the enemy they all work correctly execpt for the shape inside collision 2d node ?

[jonPS]

fix

@onready var colBox = $collisionBox;

func _ready() -> void:
	colBox.shape = colBox.shape.duplicate()

[gentlemanhal]

Glad you figured it out!

FYI, you can also do the same from the inspector by checking Local to Scene

[jonPS]

@gentlemanhal

Glad you figured it out!

FYI, you can also do the same from the inspector by checking Local to Scene

ho ok… just tried it and it works, thanks
it works the same has the code in ready func, but the editor is better less code the better