Fix: Update text effect size when font zoom is changed. (#9174)

(cherry picked from commit 18651dd8b1)

src/saveload/afterload.cpp

@@ -227,6 +227,7 @@ void UpdateAllVirtCoords()
 	UpdateAllStationVirtCoords();
 	UpdateAllSignVirtCoords();
 	UpdateAllTownVirtCoords();
+	UpdateAllTextEffectVirtCoords();
 	RebuildViewportKdtree();
 }
 

src/texteff.cpp

@@ -79,7 +79,16 @@ void UpdateTextEffect(TextEffectID te_id, StringID msg)
 	te->params_1 = GetDParam(0);
 	te->params_2 = GetDParam(1);
 
-	te->UpdatePosition(ZOOM_LVL_OUT_8X, te->center, te->top, msg);
+	te->UpdatePosition(ZOOM_LVL_OUT_8X, te->center, te->top, te->string_id, te->string_id - 1);
+}
+
+void UpdateAllTextEffectVirtCoords()
+{
+	for (auto &te : _text_effects) {
+		SetDParam(0, te.params_1);
+		SetDParam(1, te.params_2);
+		te.UpdatePosition(ZOOM_LVL_OUT_8X, te.center, te.top, te.string_id, te.string_id - 1);
+	}
 }
 
 void RemoveTextEffect(TextEffectID te_id)

src/texteff.hpp

@@ -32,6 +32,7 @@ void InitTextEffects();
 void DrawTextEffects(DrawPixelInfo *dpi);
 void UpdateTextEffect(TextEffectID effect_id, StringID msg);
 void RemoveTextEffect(TextEffectID effect_id);
+void UpdateAllTextEffectVirtCoords();
 
 /* misc_gui.cpp */
 TextEffectID ShowFillingPercent(int x, int y, int z, uint8 percent, StringID colour);