Merge pull request #679 from MihailRis/custom-entry-points

Custom content sources

doc/en/scripting/builtins/libapp.md

@@ -168,3 +168,21 @@ app.create_memory_device(
 ```
 
 Creates an in-memory filesystem.
+
+```lua
+app.get_content_sources() -> table<string>
+```
+
+Returns a list of content sources (paths), in descending priority order.
+
+``lua
+app.set_content_sources(sources: table<string>)
+```
+
+Sets a list of content sources (paths). Specified in descending priority order.
+
+``lua
+app.reset_content_sources()
+```
+
+Resets content sources.

doc/ru/scripting/builtins/libapp.md

@@ -168,3 +168,21 @@ app.create_memory_device(
 ```
 
 Создаёт файловую систему в памяти.
+
+```lua
+app.get_content_sources() -> table<string>
+```
+
+Возвращает список источников контента (путей), в порядке убывания приоритета.
+
+```lua
+app.set_content_sources(sources: table<string>)
+```
+
+Устанавливает список источников контента (путей). Указывается в порядке убывания приоритета.
+
+```lua
+app.reset_content_sources()
+```
+
+Сбрасывает список источников контента.

src/content/ContentControl.cpp

@@ -16,6 +16,13 @@ static void load_configs(Input& input, const io::path& root) {
     auto configFolder = root / "config";
 }
 
+static std::vector<io::path> default_content_sources {
+    "world:content",
+    "user:content",
+    "project:content",
+    "res:content",
+};
+
 ContentControl::ContentControl(
     const Project& project,
     EnginePaths& paths,
@@ -27,12 +34,7 @@ ContentControl::ContentControl(
       postContent(std::move(postContent)),
       basePacks(project.basePacks),
       manager(std::make_unique<PacksManager>()) {
-    manager->setSources({
+    manager->setSources(default_content_sources);
-        "world:content",
-        "user:content",
-        "project:content",
-        "res:content",
-    });
 }
 
 ContentControl::~ContentControl() = default;
@@ -68,6 +70,7 @@ void ContentControl::resetContent(const std::vector<std::string>& nonReset) {
     scripting::on_content_reset();
 
     setContentPacksRaw(manager->getAll(basePacks));
+    resetContentSources();
 
     postContent();
 }
@@ -139,3 +142,15 @@ PacksManager& ContentControl::scan() {
     manager->scan();
     return *manager;
 }
+
+void ContentControl::setContentSources(std::vector<io::path> sources) {
+    manager->setSources(std::move(sources));
+}
+
+void ContentControl::resetContentSources() {
+    manager->setSources(default_content_sources);
+}
+
+const std::vector<io::path>& ContentControl::getContentSources() const {
+    return manager->getSources();
+}

src/content/ContentControl.hpp

@@ -5,6 +5,7 @@
 #include <string>
 #include <functional>
 
+#include "io/path.hpp"
 #include "ContentPack.hpp"
 
 class Content;
@@ -13,10 +14,6 @@ class EnginePaths;
 class Input;
 struct Project;
 
-namespace io {
-    class path;
-}
-
 class ContentControl {
 public:
     ContentControl(
@@ -46,6 +43,10 @@ public:
     const std::vector<ContentPack>& getAllContentPacks() const;
 
     PacksManager& scan();
+
+    void setContentSources(std::vector<io::path> sources);
+    void resetContentSources();
+    const std::vector<io::path>& getContentSources() const;
 private:
     EnginePaths& paths;
     Input& input;

src/content/PacksManager.cpp

@@ -9,6 +9,10 @@
 
 PacksManager::PacksManager() = default;
 
+const std::vector<io::path>& PacksManager::getSources() const {
+    return sources;
+}
+
 void PacksManager::setSources(std::vector<io::path> sources) {
     this->sources = std::move(sources);
 }

src/content/PacksManager.hpp

@@ -12,6 +12,9 @@ class PacksManager {
 public:
     PacksManager();
 
+    /// @brief Get current content packs sources
+    const std::vector<io::path>& getSources() const;
+
     /// @brief Set content packs sources (search folders)
     void setSources(std::vector<io::path> sources);
 

src/logic/scripting/lua/libs/libapp.cpp

@@ -2,6 +2,11 @@
 
 #include "io/io.hpp"
 #include "io/devices/MemoryDevice.hpp"
+#include "engine/Engine.hpp"
+#include "content/ContentControl.hpp"
+#include "logic/scripting/scripting.hpp"
+
+using namespace scripting;
 
 static int l_create_memory_device(lua::State* L) {
     std::string name = lua::require_string(L, 1);
@@ -18,8 +23,41 @@ static int l_create_memory_device(lua::State* L) {
     return 0;
 }
 
+static int l_get_content_sources(lua::State* L) {
+    const auto& sources = engine->getContentControl().getContentSources();
+    lua::createtable(L, static_cast<int>(sources.size()), 0);
+    for (size_t i = 0; i < sources.size(); i++) {
+        lua::pushlstring(L, sources[i].string());
+        lua::rawseti(L, static_cast<int>(i + 1));
+    }
+    return 1;
+}
+
+static int l_set_content_sources(lua::State* L) {
+    if (!lua::istable(L, 1)) {
+        throw std::runtime_error("table expected as argument 1");
+    }
+    int len = lua::objlen(L, 1);
+    std::vector<io::path> sources;
+    for (int i = 0; i < len; i++) {
+        lua::rawgeti(L, i + 1);
+        sources.emplace_back(std::string(lua::require_lstring(L, -1)));
+        lua::pop(L);
+    }
+    engine->getContentControl().setContentSources(std::move(sources));
+    return 0;
+}
+
+static int l_reset_content_sources(lua::State* L) {
+    engine->getContentControl().resetContentSources();
+    return 0;
+}
+
 const luaL_Reg applib[] = {
     {"create_memory_device", lua::wrap<l_create_memory_device>},
+    {"get_content_sources", lua::wrap<l_get_content_sources>},
+    {"set_content_sources", lua::wrap<l_set_content_sources>},
+    {"reset_content_sources", lua::wrap<l_reset_content_sources>},
     // see libcore.cpp an stdlib.lua
     {nullptr, nullptr}
 };