Toasts in the top right, newest first

src/ui.cpp

@@ -706,13 +706,14 @@ void Ui::text_draw(Play& play, ImVec2 screen)
     ImGui::PopFont();
 }
 
+// Fading messages stacked down from the top right, newest first.
 void Ui::toasts_draw(Play& play)
 {
     ImGuiStyle& style = ImGui::GetStyle();
     ImGuiViewport* viewport = ImGui::GetMainViewport();
     ImDrawList* drawList = ImGui::GetForegroundDrawList();
     float height = ImGui::GetTextLineHeightWithSpacing() + style.WindowPadding.y * 2;
-    float bottom = viewport->WorkPos.y + viewport->WorkSize.y - play.inset - TOGGLE_HEIGHT - style.WindowPadding.y;
+    float right = viewport->WorkPos.x + viewport->WorkSize.x - style.WindowPadding.x;
     for (int i = 0; i < (int)play.toasts.size(); i++)
     {
         Toast& toast = play.toasts[i];
@@ -721,9 +722,10 @@ void Ui::toasts_draw(Play& play)
             color.w = (float)toast.life / TOAST_LIFE;
             return ImGui::GetColorU32(color);
         };
-        ImVec2 position = {viewport->WorkPos.x + style.WindowPadding.x, bottom - height * (play.toasts.size() - i)};
-        ImVec2 end = {position.x + ImGui::CalcTextSize(toast.message.c_str()).x + style.WindowPadding.x * 2,
-                      position.y + height};
+        float width = ImGui::CalcTextSize(toast.message.c_str()).x + style.WindowPadding.x * 2;
+        float age = play.toasts.size() - 1 - i;
+        ImVec2 position = {right - width, viewport->WorkPos.y + style.WindowPadding.y + height * age};
+        ImVec2 end = {right, position.y + height};
         drawList->AddRectFilled(position, end, color_get(ImGuiCol_WindowBg), style.WindowRounding);
         drawList->AddRect(position, end, color_get(ImGuiCol_Border), style.WindowRounding);
         drawList->AddText({position.x + style.WindowPadding.x, position.y + style.WindowPadding.y},