refactor ContentBuilder and add entities support

src/content/Content.cpp

@@ -7,15 +7,18 @@
 
 #include "../voxels/Block.hpp"
 #include "../items/ItemDef.hpp"
+#include "../objects/EntityDef.hpp"
 
 #include "ContentPack.hpp"
 #include "../logic/scripting/scripting.hpp"
 
 ContentIndices::ContentIndices(
-    std::vector<Block*> blocks, 
-    std::vector<ItemDef*> items
+    ContentUnitIndices<Block> blocks,
+    ContentUnitIndices<ItemDef> items,
+    ContentUnitIndices<EntityDef> entities
 ) : blocks(std::move(blocks)),
-    items(std::move(items))
+    items(std::move(items)),
+    entities(std::move(entities))
 {}
 
 Content::Content(
@@ -23,6 +26,7 @@ Content::Content(
     std::unique_ptr<DrawGroups> drawGroups,
     ContentUnitDefs<Block> blocks,
     ContentUnitDefs<ItemDef> items,
+    ContentUnitDefs<EntityDef> entities,
     std::unordered_map<std::string, std::unique_ptr<ContentPackRuntime>> packs,
     std::unordered_map<std::string, std::unique_ptr<BlockMaterial>> blockMaterials
 ) : indices(std::move(indices)),
@@ -30,6 +34,7 @@ Content::Content(
     blockMaterials(std::move(blockMaterials)),
     blocks(std::move(blocks)),
     items(std::move(items)),
+    entities(std::move(entities)),
     drawGroups(std::move(drawGroups)) 
 {}
 

src/content/Content.hpp

@@ -14,12 +14,13 @@ using DrawGroups = std::set<ubyte>;
 
 class Block;
 struct BlockMaterial;
-class ItemDef;
+struct ItemDef;
+struct EntityDef;
 class Content;
 class ContentPackRuntime;
 
 enum class contenttype {
-    none, block, item
+    none, block, item, entity
 };
 
 inline const char* contenttype_name(contenttype type) {
@@ -27,6 +28,7 @@ inline const char* contenttype_name(contenttype type) {
         case contenttype::none: return "none";
         case contenttype::block: return "block";
         case contenttype::item: return "item";
+        case contenttype::entity: return "entity";
         default:
             return "unknown";
     }
@@ -70,10 +72,12 @@ class ContentIndices {
 public:
     ContentUnitIndices<Block> blocks;
     ContentUnitIndices<ItemDef> items;
+    ContentUnitIndices<EntityDef> entities;
 
     ContentIndices(
-        std::vector<Block*> blockDefs, 
-        std::vector<ItemDef*> itemDefs
+        ContentUnitIndices<Block> blocks,
+        ContentUnitIndices<ItemDef> items,
+        ContentUnitIndices<EntityDef> entities
     );
 };
 
@@ -109,6 +113,7 @@ class Content {
 public:
     ContentUnitDefs<Block> blocks;
     ContentUnitDefs<ItemDef> items;
+    ContentUnitDefs<EntityDef> entities;
     std::unique_ptr<DrawGroups> const drawGroups;
 
     Content(
@@ -116,6 +121,7 @@ public:
         std::unique_ptr<DrawGroups> drawGroups,
         ContentUnitDefs<Block> blocks,
         ContentUnitDefs<ItemDef> items,
+        ContentUnitDefs<EntityDef> entities,
         std::unordered_map<std::string, std::unique_ptr<ContentPackRuntime>> packs,
         std::unordered_map<std::string, std::unique_ptr<BlockMaterial>> blockMaterials
     );

src/content/ContentBuilder.cpp

@@ -6,28 +6,6 @@ void ContentBuilder::add(std::unique_ptr<ContentPackRuntime> pack) {
     packs[pack->getId()] = std::move(pack);
 }
 
-Block& ContentBuilder::createBlock(const std::string& id) {
-    auto found = blockDefs.find(id);
-    if (found != blockDefs.end()) {
-        return *found->second;
-    }
-    checkIdentifier(id);
-    blockIds.push_back(id);
-    blockDefs[id] = std::make_unique<Block>(id);
-    return *blockDefs[id];
-}
-
-ItemDef& ContentBuilder::createItem(const std::string& id) {
-    auto found = itemDefs.find(id);
-    if (found != itemDefs.end()) {
-        return *found->second;
-    }
-    checkIdentifier(id);
-    itemIds.push_back(id);
-    itemDefs[id] = std::make_unique<ItemDef>(id);
-    return *itemDefs[id];
-}
-
 BlockMaterial& ContentBuilder::createBlockMaterial(const std::string& id) {
     blockMaterials[id] = std::make_unique<BlockMaterial>();
     auto& material = *blockMaterials[id];
@@ -35,28 +13,11 @@ BlockMaterial& ContentBuilder::createBlockMaterial(const std::string& id) {
     return material;
 }
 
-void ContentBuilder::checkIdentifier(const std::string& id) {
-    contenttype result;
-    if (((result = checkContentType(id)) != contenttype::none)) {
-        throw namereuse_error("name "+id+" is already used", result);
-    }  
-}
-
-contenttype ContentBuilder::checkContentType(const std::string& id) {
-    if (blockDefs.find(id) != blockDefs.end()) {
-        return contenttype::block;
-    }
-    if (itemDefs.find(id) != itemDefs.end()) {
-        return contenttype::item;
-    }
-    return contenttype::none;
-}
-
 std::unique_ptr<Content> ContentBuilder::build() {
     std::vector<Block*> blockDefsIndices;
     auto groups = std::make_unique<DrawGroups>();
-    for (const std::string& name : blockIds) {
-        Block& def = *blockDefs[name];
+    for (const std::string& name : blocks.names) {
+        Block& def = *blocks.defs[name];
         
         // Generating runtime info
         def.rt.id = blockDefsIndices.size();
@@ -79,8 +40,8 @@ std::unique_ptr<Content> ContentBuilder::build() {
     }
 
     std::vector<ItemDef*> itemDefsIndices;
-    for (const std::string& name : itemIds) {
-        ItemDef& def = *itemDefs[name];
+    for (const std::string& name : items.names) {
+        ItemDef& def = *items.defs[name];
         
         // Generating runtime info
         def.rt.id = itemDefsIndices.size();
@@ -88,12 +49,24 @@ std::unique_ptr<Content> ContentBuilder::build() {
         itemDefsIndices.push_back(&def);
     }
 
+    std::vector<EntityDef*> entityDefsIndices;
+    for (const std::string& name : entities.names) {
+        EntityDef& def = *entities.defs[name];
+
+        // Generating runtime info
+        entityDefsIndices.push_back(&def);
+    }
+
     auto content = std::make_unique<Content>(
-        std::make_unique<ContentIndices>(blockDefsIndices, itemDefsIndices), 
-        std::move(groups), 
-        std::move(blockDefs), 
-        std::move(itemDefs), 
-        std::move(packs), 
+        std::make_unique<ContentIndices>(
+            blockDefsIndices, 
+            itemDefsIndices,
+            entityDefsIndices),
+        std::move(groups),
+        blocks.build(), 
+        items.build(),
+        entities.build(),
+        std::move(packs),
         std::move(blockMaterials)
     );
 

src/content/ContentBuilder.hpp

@@ -3,6 +3,7 @@
 
 #include "../items/ItemDef.hpp"
 #include "../voxels/Block.hpp"
+#include "../objects/EntityDef.hpp"
 #include "../content/Content.hpp"
 #include "../content/ContentPack.hpp"
 
@@ -10,27 +11,58 @@
 #include <vector>
 #include <unordered_map>
 
+template<class T>
+class ContentUnitBuilder {
+    std::unordered_map<std::string, contenttype>& allNames;
+    contenttype type;
+
+    void checkIdentifier(const std::string& id) {
+        const auto& found = allNames.find(id);
+        if (found != allNames.end()) {
+            throw namereuse_error("name "+id+" is already used", found->second);
+        }
+    }
+public:
+    std::unordered_map<std::string, std::unique_ptr<T>> defs;
+    std::vector<std::string> names;
+    
+    ContentUnitBuilder(
+        std::unordered_map<std::string, contenttype>& allNames,
+        contenttype type
+    ) : allNames(allNames), type(type) {}
+
+    T& create(const std::string& id) {
+        auto found = defs.find(id);
+        if (found != defs.end()) {
+            return *found->second;
+        }
+        checkIdentifier(id);
+        allNames[id] = type;
+        names.push_back(id);
+        defs[id] = std::make_unique<T>(id);
+        return *defs[id];
+    }
+
+    auto build() {
+        return std::move(defs);
+    }
+};
+
 class ContentBuilder {
-    std::unordered_map<std::string, std::unique_ptr<Block>> blockDefs;
-    std::vector<std::string> blockIds;
-
-    std::unordered_map<std::string, std::unique_ptr<ItemDef>> itemDefs;
-    std::vector<std::string> itemIds;
-
     std::unordered_map<std::string, std::unique_ptr<BlockMaterial>> blockMaterials;
     std::unordered_map<std::string, std::unique_ptr<ContentPackRuntime>> packs;
+    std::unordered_map<std::string, contenttype> allNames;
 public:
+    ContentUnitBuilder<Block> blocks {allNames, contenttype::block};
+    ContentUnitBuilder<ItemDef> items {allNames, contenttype::item};
+    ContentUnitBuilder<EntityDef> entities {allNames, contenttype::entity};
+
     ~ContentBuilder();
 
     void add(std::unique_ptr<ContentPackRuntime> pack);
 
-    Block& createBlock(const std::string& id);
-    ItemDef& createItem(const std::string& id);
     BlockMaterial& createBlockMaterial(const std::string& id);
 
-    void checkIdentifier(const std::string& id);
-    contenttype checkContentType(const std::string& id);
-
     std::unique_ptr<Content> build();
 };
 

src/content/ContentLoader.cpp

@@ -363,14 +363,14 @@ void ContentLoader::load(ContentBuilder& builder) {
             auto colon = name.find(':');
             std::string full = colon == std::string::npos ? pack->id + ":" + name : name;
             if (colon != std::string::npos) name[colon] = '/';
-            auto& def = builder.createBlock(full);
+            auto& def = builder.blocks.create(full);
             if (colon != std::string::npos) {
                 def.scriptName = name.substr(0, colon) + '/' + def.scriptName;
             }
             loadBlock(def, full, name);
             stats.totalBlocks++;
             if (!def.hidden) {
-                auto& item = builder.createItem(full+BLOCK_ITEM_SUFFIX);
+                auto& item = builder.items.create(full+BLOCK_ITEM_SUFFIX);
                 item.generated = true;
                 item.caption = def.caption;
                 item.iconType = item_icon_type::block;
@@ -392,7 +392,7 @@ void ContentLoader::load(ContentBuilder& builder) {
             auto colon = name.find(':');
             std::string full = colon == std::string::npos ? pack->id + ":" + name : name;
             if (colon != std::string::npos) name[colon] = '/';
-            auto& def = builder.createItem(full);
+            auto& def = builder.items.create(full);
             if (colon != std::string::npos) def.scriptName = name.substr(0, colon) + '/' + def.scriptName;
             loadItem(def, full, name);
             stats.totalItems++;

src/content/ContentLoader.hpp

@@ -10,7 +10,7 @@ namespace fs = std::filesystem;
 
 class Block;
 struct BlockMaterial;
-class ItemDef;
+struct ItemDef;
 struct ContentPack;
 class ContentBuilder;
 

src/core_defs.cpp

@@ -12,7 +12,7 @@
 
 // All in-game definitions (blocks, items, etc..)
 void corecontent::setup(EnginePaths* paths, ContentBuilder* builder) {
-    Block& block = builder->createBlock("core:air");
+    Block& block = builder->blocks.create("core:air");
     block.replaceable = true;
     block.drawGroup = 1;
     block.lightPassing = true;
@@ -22,7 +22,7 @@ void corecontent::setup(EnginePaths* paths, ContentBuilder* builder) {
     block.model = BlockModel::none;
     block.pickingItem = "core:empty";
 
-    ItemDef& item = builder->createItem("core:empty");
+    ItemDef& item = builder->items.create("core:empty");
     item.iconType = item_icon_type::none;
 
     auto bindsFile = paths->getResources()/fs::path("bindings.toml");

src/items/ItemDef.hpp

@@ -19,8 +19,7 @@ enum class item_icon_type {
     block, // block preview: icon is string block id
 };
 
-class ItemDef {
-public:
+struct ItemDef {
     /// @brief Item string id (with prefix included)
     std::string const name;
 

src/logic/scripting/scripting.hpp

@@ -22,7 +22,7 @@ class ContentIndices;
 class Level;
 class Block;
 class Player;
-class ItemDef;
+struct ItemDef;
 class Inventory;
 class UiDocument;
 struct block_funcs_set;