object ImGui {
    val instance = ImGui
    val implGl3: ImplGL3
    val implGlfw: ImplGlfw

    init {
        MINECRAFT_BEHAVIORS = true

        val glfwWindow = GlfwWindow(MinecraftClient.getInstance().window.handle)
        val window = GlWindow(glfwWindow, Caps.Profile.COMPATIBILITY, true)

        window.makeCurrent(true)
        Context().setCurrent()

        implGlfw = ImplGlfw(window, false, null)
        implGl3 = ImplGL3()
    }
}

@Environment(EnvType.CLIENT)
open class ImGuiScreen(title: Text) : Screen(title) {
    override fun render(context: DrawContext?, mouseX: Int, mouseY: Int, delta: Float) {
        ImGui.implGl3.newFrame()
        ImGui.implGlfw.newFrame()
        ImGui.instance.newFrame()
        
        ImGui.instance.showDemoWindow(booleanArrayOf(true))
        
        ImGui.instance.render()
        ImGui.implGl3.renderDrawData(
            Objects.requireNonNull<DrawData>(ImGui.instance.drawData)
        )
    }
}