GODOT 3: How to duplicate a rigidbody to create many object instances

Alessandro

Hello, I'm new in Godot and this is my first post/question/help :-)

In order to learn GDScript (Godot 3) I'm creating very small tests. Now I created a sphere in the scene 3D (using a rigidbody). It works, falls down and hit on the ground. I simply wanted to create, via GDScript, several sphere instances when I press a key, so these new created spheres will be created in the sky and start to fall down like a long stack of spheres. I use the "master" sphere to get the start position, but I cannot create new instances of this master-sphere. I tried using new() , then instance(), etc.... but I always get errors.

This is one of my several attempts to create this test:

extends RigidBody

var ball
var ballInitialPos

func _ready():
	ball = get_node(".")
	ballInitialPos = translation
	

func _physics_process(delta):
	if Input.is_action_pressed("game_space"):
		var newBall = ball.new()
		if(newBall == null):
			print("Error - sphere not created")
		else:
			get_parent().add_child(newBall)
			
		print(ballInitialPos)

Godot tells me "Invalid call. Nonexistent function new() in base RigidBody(Sfera.gd).

Please can you help me?

Thank you!

Alessandro

Ok, finally I solved. I wish to publish the script result, so I hope it could be useful for someone :)

I put the script in an object root (Spatial).

extends Spatial

# Resource containing my sphere
var sphereNode = preload("res://Sfera.tscn")

# In the scene there is a spatial used as a spawn point for the
# new generated spheres
var ballSpawnPoint

func _ready():
	# Get a reference to the spawn point
	ballSpawnPoint = get_node("BallSpawnPoint")	


func _process(delta):
	
	# New spheres are created when the player press the SPACE BAR
	if(Input.is_action_pressed("game_space")):
		
		# Create a new sphere (ball) instance
		var newBall = sphereNode.instance()
		
		if(newBall == null):
			print("Error creating the new ball!")
			
		else:
			
			# Set position (translation) of the new ball/sphere
			newBall.translation = ballSpawnPoint.translation
			
			# Translate a little bit away from the original point
			# just to create a nice visual effect
			newBall.translate(Vector3(getRandPos(), getRandPos(), getRandPos()))
			
			# Add the new sphere to the root scene
			get_parent().add_child(newBall)

# This function returns me an offset position (-5, +5)
func getRandPos():
	return randf()*10-5