world.lua script

src/content/ContentLoader.cpp

@@ -276,6 +276,12 @@ void ContentLoader::load(ContentBuilder* builder) {
     fixPackIndices();
 
     auto folder = pack->folder;
+
+    fs::path scriptFile = folder/fs::path("scripts/world.lua");
+    if (fs::is_regular_file(scriptFile)) {
+        scripting::load_world_script(pack->id, scriptFile);
+    }
+
     if (!fs::is_regular_file(pack->getContentFile()))
         return;
     auto root = files::read_json(pack->getContentFile());

src/engine.cpp

@@ -123,8 +123,8 @@ void Engine::mainloop() {
 }
 
 Engine::~Engine() {
-    scripting::close();
 	screen = nullptr;
+    scripting::close();
 
 	Audio::finalize();
 

src/frontend/screens.cpp

@@ -100,8 +100,10 @@ LevelScreen::LevelScreen(Engine* engine, Level* level)
 
 LevelScreen::~LevelScreen() {
     std::cout << "-- writing world" << std::endl;
+    controller->onWorldSave();
     auto world = level->getWorld();
     world->write(level.get());
+    controller->onWorldQuit();
 }
 
 void LevelScreen::updateHotkeys() {

src/logic/LevelController.cpp

@@ -17,7 +17,6 @@ LevelController::LevelController(EngineSettings& settings, Level* level)
 }
 
 LevelController::~LevelController() {
-    scripting::on_world_quit();
 }
 
 void LevelController::update(float delta, bool input, bool pause) {
@@ -26,3 +25,11 @@ void LevelController::update(float delta, bool input, bool pause) {
     chunks->update(settings.chunks.loadSpeed);
     blocks->update(delta);
 }
+
+void LevelController::onWorldSave() {
+    scripting::on_world_save();
+}
+
+void LevelController::onWorldQuit() {
+    scripting::on_world_quit();
+}

src/logic/LevelController.h

@@ -29,6 +29,9 @@ public:
     void update(float delta, 
                 bool input, 
                 bool pause);
+
+    void onWorldSave();
+    void onWorldQuit();
 };
 
 #endif // LOGIC_LEVEL_CONTROLLER_H_

src/logic/scripting/scripting.cpp

@@ -4,6 +4,7 @@
 #include <stdexcept>
 #include <lua.hpp>
 
+#include "../../content/ContentPack.h"
 #include "../../files/engine_paths.h"
 #include "../../files/files.h"
 #include "../../util/timeutil.h"
@@ -105,9 +106,40 @@ void scripting::on_world_load(Level* level, BlocksController* blocks) {
     scripting::content = level->content;
     scripting::blocks = blocks;
     load_script("world.lua");
+
+    for (auto& pack : scripting::engine->getContentPacks()) {
+        std::string name = pack.id+".worldopen";
+        lua_getglobal(L, name.c_str());
+        if (lua_isnil(L, lua_gettop(L))) {
+            lua_pop(L, lua_gettop(L));
+            continue;
+        }
+        call_func(L, 0, name);
+    }
+}
+
+void scripting::on_world_save() {
+    for (auto& pack : scripting::engine->getContentPacks()) {
+        std::string name = pack.id+".worldsave";
+        lua_getglobal(L, name.c_str());
+        if (lua_isnil(L, lua_gettop(L))) {
+            lua_pop(L, lua_gettop(L));
+            continue;
+        }
+        call_func(L, 0, name);
+    }
 }
 
 void scripting::on_world_quit() {
+    for (auto& pack : scripting::engine->getContentPacks()) {
+        std::string name = pack.id+".worldquit";
+        lua_getglobal(L, name.c_str());
+        if (lua_isnil(L, lua_gettop(L))) {
+            lua_pop(L, lua_gettop(L));
+            continue;
+        }
+        call_func(L, 0, name);
+    }
     scripting::level = nullptr;
     scripting::content = nullptr;
 }
@@ -211,6 +243,20 @@ void scripting::load_item_script(std::string prefix, fs::path file, item_funcs_s
     funcsset->on_block_break_by=rename_global(L, "on_block_break_by", (prefix+".blockbreakby").c_str());
 }
 
+void scripting::load_world_script(std::string prefix, fs::path file) {
+    std::string src = files::read_string(file);
+    std::cout << "loading script " << file.u8string() << std::endl;
+    if (luaL_loadbuffer(L, src.c_str(), src.size(), file.string().c_str())) {
+        handleError(L);
+        return;
+    }
+    call_func(L, 0, "<script>");
+    rename_global(L, "init", (prefix+".init").c_str());
+    rename_global(L, "on_world_open", (prefix+".worldopen").c_str());
+    rename_global(L, "on_world_save", (prefix+".worldsave").c_str());
+    rename_global(L, "on_world_quit", (prefix+".worldquit").c_str());
+}
+
 void scripting::close() {
     lua_close(L);
 

src/logic/scripting/scripting.h

@@ -21,6 +21,7 @@ namespace scripting {
 
     void initialize(Engine* engine);
     void on_world_load(Level* level, BlocksController* blocks);
+    void on_world_save();
     void on_world_quit();
     void on_blocks_tick(const Block* block, int tps);
     void update_block(const Block* block, int x, int y, int z);
@@ -32,5 +33,6 @@ namespace scripting {
     bool on_item_break_block(Player* player, const ItemDef* item, int x, int y, int z);
     void load_block_script(std::string prefix, fs::path file, block_funcs_set* funcsset);
     void load_item_script(std::string prefix, fs::path file, item_funcs_set* funcsset);
+    void load_world_script(std::string prefix, fs::path file);
     void close();
 }