BuildingDigital

xyz

thanks, after looking into different Node's and there signals I noticed that the Control node also has the gui_input signal so I just used that one and it works fine.

I also added a player scene with following code:

extends CharacterBody2D

func _on_input_event(viewport, event, shape_idx):
	if event.is_action_pressed("left_click"):
		print("Tank clicked")

It works fine but when I instance the player scene in my main scene it doesn't print anymore which means the function is not called in my main scene.

class_name Grid
extends Node2D
@export var row := 5
@export var column := 5
@export var cell_size := 150
func _ready():
	for i in range(row):
		for j in range(column):
			var cell = ColorRect.new()
			cell.color = Color.WHITE
			cell.size = Vector2(cell_size, cell_size)
			cell.position = Vector2(j * cell_size, i * cell_size)
			add_child(cell)
					
			#for debugging						
			var border = Line2D.new()
			border.default_color = Color.BLUE
			border.width = 1 # set the border width to 1 pixel
			border.points = [Vector2(0, 0), Vector2(cell_size, 0), Vector2(cell_size, cell_size), Vector2(0, cell_size), Vector2(0, 0)] # set the border points to form a rectangle
			border.position = Vector2(j * cell_size, i * cell_size)
			add_child(border)

			var label = Label.new()
			label.text = str(j) + "," + str(i) # set the label text to the cell's row and column number
			label.set_horizontal_alignment(HORIZONTAL_ALIGNMENT_CENTER)
			label.set_vertical_alignment(VERTICAL_ALIGNMENT_CENTER)
			label.position = Vector2(j * cell_size, i * cell_size)
			label.size = Vector2(cell_size, cell_size)
			label.set("theme_override_colors/font_color", Color(1, 0, 0))
			add_child(label)
			
			cell.connect("mouse_button_pressed", on_cell_clicked)
			
func on_cell_clicked(event):
	if event is InputEventMouseButton:
		if event.pressed:
			var cell_index = event.position / cell_size			
			print(str(cell_index))

I have this code now but its not printing anything at the moment. So it's not activating the on_cell_clicked function yet. I am getting this error in the compiler when I run the scene. My grid is showing perfectly

Attempt to connect nonexistent signal 'mouse_button_pressed' to callable 'Node2D(gameboard.gd)::on_cell_clicked'.
<C++ Fout> Condition "!signal_is_valid" is true. Returning: ERR_INVALID_PARAMETER
<C++ Source> core/object/object.cpp:1256 @ connect()
<Stack Trace> gameboard.gd:32 @ _ready()

thanks

best regards