Handle research trigger 'craft-item'

Yafc.Model/Data/DataClasses.cs

@@ -83,6 +83,8 @@ public enum RecipeFlags {
     UsesMiningProductivity = 1 << 0,
     UsesFluidTemperature = 1 << 2,
     ScaleProductionWithPower = 1 << 3,
+    /// <summary>Set when the technology has a research trigger to craft an item</summary>
+    HasResearchTriggerCraft = 1 << 4,
 }
 
 public abstract class RecipeOrTechnology : FactorioObject {

Yafc.Parser/Data/FactorioDataDeserializer_RecipeAndTechnology.cs

@@ -100,13 +100,13 @@ private void LoadTechnologyData(Technology technology, LuaTable table, ErrorColl
             technology.ingredients = LoadResearchIngredientList(unit, technology.typeDotName, errorCollector);
             recipeCategories.Add(SpecialNames.Labs, technology);
         }
-        else if (table.Get("research_trigger", out LuaTable? researchTrigger)) {
-            technology.ingredients = [];
+        else if (table.Get("research_trigger", out LuaTable? researchTriggerTable)) {
+            LoadResearchTrigger(researchTriggerTable, ref technology, errorCollector);
+            technology.ingredients ??= [];
             recipeCategories.Add(SpecialNames.TechnologyTrigger, technology);
-            errorCollector.Error($"Research trigger not yet supported for {technology.name}", ErrorSeverity.MinorDataLoss);
         }
         else {
-            errorCollector.Error($"Could not get science packs for {technology.name}.", ErrorSeverity.AnalysisWarning);
+            errorCollector.Error($"Could not get requirement(s) to unlock {technology.name}.", ErrorSeverity.AnalysisWarning);
         }
 
         DeserializeFlags(table, technology);
@@ -229,6 +229,29 @@ private Ingredient[] LoadResearchIngredientList(LuaTable table, string typeDotNa
         }).Where(x => x is not null).ToArray() ?? [];
     }
 
+    private void LoadResearchTrigger(LuaTable researchTriggerTable, ref Technology technology, ErrorCollector errorCollector) {
+        if (!researchTriggerTable.Get("type", out string? type)) {
+            errorCollector.Error($"Research trigger of {technology.typeDotName} does not have a type field", ErrorSeverity.MinorDataLoss);
+            return;
+        }
+
+        switch (type) {
+            case "craft-item":
+                if (!researchTriggerTable.Get("item", out string? craftItemName)) {
+                    errorCollector.Error($"Research trigger craft-item of {technology.typeDotName} does not have a item field", ErrorSeverity.MinorDataLoss);
+                    break;
+                }
+                float craftCount = researchTriggerTable.Get("count", 1);
+                technology.ingredients = [new Ingredient(GetObject<Item>(craftItemName), craftCount)];
+                technology.flags = RecipeFlags.HasResearchTriggerCraft;
+
+                break;
+            default:
+                errorCollector.Error($"Research trigger of {technology.typeDotName} has an unsupported type {type}", ErrorSeverity.MinorDataLoss);
+                break;
+        }
+    }
+
     private void LoadRecipeData(Recipe recipe, LuaTable table, ErrorCollector errorCollector) {
         recipe.ingredients = LoadIngredientList(table, recipe.typeDotName, errorCollector);
         recipe.products = LoadProductList(table, recipe.typeDotName, allowSimpleSyntax: false);

Yafc/Widgets/ObjectTooltip.cs

@@ -500,7 +500,15 @@ private void BuildRecipe(RecipeOrTechnology recipe, ImGui gui) {
     }
 
     private void BuildTechnology(Technology technology, ImGui gui) {
-        BuildRecipe(technology, gui);
+        bool isResearchTriggerCraft = (technology.flags & RecipeFlags.HasResearchTriggerCraft) == RecipeFlags.HasResearchTriggerCraft;
+        if (isResearchTriggerCraft) {
+            BuildCommon(technology, gui);
+
+        }
+        else {
+            BuildRecipe(technology, gui);
+        }
+
         if (technology.hidden && !technology.enabled) {
             using (gui.EnterGroup(contentPadding)) {
                 gui.BuildText("This technology is hidden from the list and cannot be researched.", TextBlockDisplayStyle.WrappedText);
@@ -514,6 +522,15 @@ private void BuildTechnology(Technology technology, ImGui gui) {
             }
         }
 
+        if (isResearchTriggerCraft) {
+            BuildSubHeader(gui, "Item crafting required");
+            using (gui.EnterGroup(contentPadding)) {
+                using var grid = gui.EnterInlineGrid(3f);
+                grid.Next();
+                _ = gui.BuildFactorioObjectWithAmount(technology.ingredients[0].goods, technology.ingredients[0].amount, ButtonDisplayStyle.ProductionTableUnscaled);
+            }
+        }
+
         if (technology.unlockRecipes.Length > 0) {
             BuildSubHeader(gui, "Unlocks recipes");
             using (gui.EnterGroup(contentPadding)) {