Displaying the grid thats created in code?

Venkman

Hi, could anyone help with displaying a simple 2d grid(isometric) after the script has been written?
`extends Node

func _ready():
var astar_grid = AStarGrid2D.new()

astar_grid.region = Rect2i(0, 0, 32, 32)
astar_grid.cell_size = Vector2(16, 16)
astar_grid.update()

print(astar_grid.get_id_path(Vector2i(0, 0), Vector2i(3, 4)))
print(astar_grid.get_point_path(Vector2i(0, 0), Vector2i(10, 10)))`

boruok

here you go:

tool
extends Node2D


const ISO_TRANSFORM := Transform2D(Vector2(1, .5),Vector2(-1, .5),Vector2(0, 0))


export var _rect := Rect2(0, 0, 16, 16) setget set_rect
export var _color := Color.white setget set_color
export var _filled := false setget set_filled
export var _width := 1.0 setget set_width
export var _antialiased := false setget set_antialiased
export var _isometric := false setget set_isometric


func set_rect(value: Rect2) -> void:
	_rect = value
	update()


func set_color(value: Color) -> void:
	_color = value
	update()


func set_filled(value: bool) -> void:
	_filled = value
	update()


func set_width(value: float) -> void:
	_width = value
	update()


func set_antialiased(value: bool) -> void:
	_antialiased = value
	update()


func set_isometric(value: bool) -> void:
	_isometric = value
	update()


func _draw() -> void:
	if _isometric:
		draw_set_transform_matrix(ISO_TRANSFORM)
	draw_rect(_rect, _color, _filled, _width, _antialiased)

Venkman

Hi, Starting from a new 2d project, with the above code Im getting this error.

If anyone can see why Im getting the error your help would be appreciated.

Haystack

Venkman The first line should be "@tool". You are missing the @ sign.

Venkman

Hi, many thanks, added the @symbol but lines 8-13 are still red?

Haystack

Same solution - add an @ sign. "@export" rather than "export".

https://docs.godotengine.org/en/stable/tutorials/scripting/gdscript/gdscript_exports.html#doc-gdscript-exports

It looks like you are using Godot 4 editor, but trying to use GdScript 3.x syntax.

Venkman

Hi, when I added the @ symbol to the export this stills shows up as red.
Am I missing a node in the hierachy or something else?

Haystack

Am I missing a node in the hierachy or something else?

No, it's still syntax errors in your script. Your export declarations are still wrong for gdscript 4.0 syntax. Here is the corrected exports. (Note: after this change, you still have a compiler error b/c your set_* functions all call 'update()', but there is no update() function defined.)

@tool
extends Node2D

const ISO_TRANSFORM := Transform2D(Vector2(1, .5),Vector2(-1, .5),Vector2(0, 0))

@export var _rect = Rect2(0, 0, 16, 16) : set = set_rect
@export var _color = Color.WHITE : set = set_color
@export var _filled = false : set = set_filled
@export var _width = 1.0 : set = set_width
@export var _antialiased = false : set = set_antialiased
@export var _isometric = false : set = set_isometric