Canvas

A high-level immediate-mode 2D rendering option is available by implementing the Draw() method on a Node2D.Extension.

You can structure the entire project with a single Node2D root added to the default scene, and pass down the CanvasItem as needed for rendering everything, along with implementing Ready() and Process(Float.X) this will give you a familiar development experience to something like Love2D or Ebiten.

package main

import (
  "graphics.gd/classdb/Node2D"
  "graphics.gd/classdb/SceneTree"
  "graphics.gd/variant/Color"
  "graphics.gd/variant/Float"
  "graphics.gd/variant/Vector2"
  "graphics.gd/startup"
)

type MyProject struct {
  Node2D.Extension[MyProject]
}

func (m *MyProject) Ready() {
  // Initialization code here
}

func (m *MyProject) Process(delta Float.X) {
  // Update code here
}

func (m *MyProject) Draw() {
  canvas := m.AsCanvasItem() // pass this to all your Draw functions
  canvas.DrawCircle(Vector2.New(100, 100), 50, Color.X11.Red)
}

func main() {
  startup.LoadingScene()
  SceneTree.Add(new(MyProject))
  startup.Scene()
}