Update textboxes in their advance function (#407)

Fixes wonky input

d2core/d2ui/textbox.go

@@ -72,10 +72,6 @@ func (v *TextBox) Render(target d2render.Surface) {
 }
 
 func (v *TextBox) Advance(elapsed float64) {
-
-}
-
-func (v *TextBox) Update() {
 	if !v.visible || !v.enabled {
 		return
 	}
@@ -92,6 +88,9 @@ func (v *TextBox) Update() {
 	}
 }
 
+func (v *TextBox) Update() {
+}
+
 func (v *TextBox) GetText() string {
 	return v.text
 }

d2game/d2gamescreen/main_menu.go

@@ -341,8 +341,6 @@ func (v *MainMenu) Advance(tickTime float64) error {
 		v.diabloLogoRightBack.Advance(tickTime)
 		v.diabloLogoLeft.Advance(tickTime)
 		v.diabloLogoRight.Advance(tickTime)
-	case ScreenModeServerIp:
-		v.tcpJoinGameEntry.Update()
 	}
 
 	switch v.screenMode {

d2game/d2gamescreen/select_hero_class.go

@@ -482,7 +482,6 @@ func (v *SelectHeroClass) Advance(tickTime float64) error {
 	if v.selectedHero != d2enum.HeroNone && allIdle {
 		v.selectedHero = d2enum.HeroNone
 	}
-	v.heroNameTextbox.Update()
 	v.okButton.SetEnabled(len(v.heroNameTextbox.GetText()) >= 2)
 	return nil
 }