feat: save rules

res/scripts/stdlib.lua

@@ -208,10 +208,16 @@ function _rules.listen(name, handler)
 end
 
 function _rules.create(name, value, handler)
-    _rules.set(name, value)
+    local handlerid
     if handler ~= nil then
-        return _rules.listen(name, handler)
+        handlerid = _rules.listen(name, handler)
     end
+    if _rules.get(name) == nil then
+        _rules.set(name, value)
+    else 
+        handler(_rules.get(name))
+    end
+    return handlerid
 end
 
 function _rules.unlisten(name, id)
@@ -240,13 +246,36 @@ function __vc_create_hud_rules()
         input.set_enabled("player.attack", value)
     end)
     _rules.create("allow-cheat-movement", true, function(value)
-        input.set_enabled("player.cheat", value)
+        input.set_enabled("movement.cheat", value)
     end)
     _rules.create("allow-debug-cheats", true, function(value)
         hud._set_debug_cheats(value)
     end)
 end
 
+local RULES_FILE = "world:rules.toml"
+function __vc_on_world_open()
+    if not file.exists(RULES_FILE) then
+        return
+    end
+    local rule_values = toml.parse(file.read(RULES_FILE))
+    for name, value in pairs(rule_values) do
+        _rules.set(name, value)
+    end
+end
+
+function __vc_on_world_save()
+    local rule_values = {}
+    for name, rule in pairs(rules.rules) do
+        rule_values[name] = rule.value
+    end
+    file.write(RULES_FILE, toml.tostring(rule_values))
+end
+
+function __vc_on_world_quit()
+    _rules.clear()
+end
+
 -- --------- Deprecated functions ------ --
 local function wrap_deprecated(func, name, alternatives)
     return function (...)

src/engine.cpp

@@ -360,7 +360,7 @@ void Engine::loadContent() {
     for (auto& pack : contentPacks) {
         ContentLoader(&pack, contentBuilder, *resPaths).load();
         load_configs(pack.folder);
-    } 
+    }
 
     content = contentBuilder.build();
 
@@ -421,8 +421,6 @@ double Engine::getDelta() const {
 }
 
 void Engine::setScreen(std::shared_ptr<Screen> screen) {
-    // unblock all bindings
-    Events::enableBindings();
     // reset audio channels (stop all sources)
     audio::reset_channel(audio::get_channel_index("regular"));
     audio::reset_channel(audio::get_channel_index("ambient"));

src/frontend/screens/LevelScreen.cpp

@@ -87,6 +87,8 @@ void LevelScreen::initializePack(ContentPackRuntime* pack) {
 LevelScreen::~LevelScreen() {
     saveWorldPreview();
     scripting::on_frontend_close();
+    // unblock all bindings
+    Events::enableBindings();
     controller->onWorldQuit();
     engine->getPaths()->setCurrentWorldFolder(fs::path());
 }

src/logic/scripting/scripting.cpp

@@ -150,7 +150,7 @@ void scripting::initialize(Engine* engine) {
 void scripting::process_post_runnables() {
     auto L = lua::get_main_state();
     if (lua::getglobal(L, "__process_post_runnables")) {
-        lua::call_nothrow(L, 0);
+        lua::call_nothrow(L, 0, 0);
     }
 }
 
@@ -160,9 +160,13 @@ void scripting::on_world_load(LevelController* controller) {
     scripting::indices = level->content->getIndices();
     scripting::blocks = controller->getBlocksController();
     scripting::controller = controller;
-    load_script("world.lua", false);
 
     auto L = lua::get_main_state();
+    if (lua::getglobal(L, "__vc_on_world_open")) {
+        lua::call_nothrow(L, 0, 0);
+    } 
+    load_script("world.lua", false);
+    
     for (auto& pack : scripting::engine->getContentPacks()) {
         lua::emit_event(L, pack.id + ":.worldopen");
     }
@@ -180,6 +184,9 @@ void scripting::on_world_save() {
     for (auto& pack : scripting::engine->getContentPacks()) {
         lua::emit_event(L, pack.id + ":.worldsave");
     }
+    if (lua::getglobal(L, "__vc_on_world_save")) {
+        lua::call_nothrow(L, 0, 0);
+    }
 }
 
 void scripting::on_world_quit() {
@@ -187,6 +194,9 @@ void scripting::on_world_quit() {
     for (auto& pack : scripting::engine->getContentPacks()) {
         lua::emit_event(L, pack.id + ":.worldquit");
     }
+    if (lua::getglobal(L, "__vc_on_world_quit")) {
+        lua::call_nothrow(L, 0, 0);
+    }
     scripting::level = nullptr;
     scripting::content = nullptr;
     scripting::indices = nullptr;
@@ -204,11 +214,6 @@ void scripting::cleanup() {
     }
     lua::pop(L);
 
-    lua::getglobal(L, "rules");
-    lua::getfield(L, "clear");
-    lua::call_nothrow(L, 0);
-    lua::pop(L);
-
     if (lua::getglobal(L, "__scripts_cleanup")) {
         lua::call_nothrow(L, 0);
     }