add gfx.text3d OOP wrapper

res/content/base/scripts/hud.lua

@@ -1,7 +1,7 @@
 local DROP_FORCE = 8
 local DROP_INIT_VEL = {0, 3, 0}
 
-local textid
+local note
 
 function on_hud_open()
     input.add_callback("player.drop", function ()
@@ -27,15 +27,15 @@ function on_hud_open()
         drop.rigidbody:set_vel(velocity)
     end)
 
-    textid = gfx.text3d.show({0.5, 99.5, 0.0015}, "Segmentation fault", {
+    note = gfx.text3d.new({0.5, 99.5, 0.0015}, "Segmentation fault", {
         scale=0.005,
         color={0, 0, 0, 1},
         displayMode="static_billboard"
     })
 end
 
 function on_hud_render()
-    gfx.text3d.update_settings(textid, {
+    note:update_settings({
         color={math.sin(time.uptime() * 12) * 0.5 + 0.5, 0, 0, 1}
     })
 end

res/scripts/hud_classes.lua

@@ -0,0 +1,13 @@
+local Text3D = {__index={
+    hide=function(self) return gfx.text3d.hide(self.id) end,
+    get_pos=function(self) return gfx.text3d.get_pos(self.id) end,
+    set_pos=function(self, v) return gfx.text3d.set_pos(self.id, v) end,
+    get_text=function(self) return gfx.text3d.get_text(self.id) end,
+    set_text=function(self, s) return gfx.text3d.set_text(self.id, s) end,
+    update_settings=function(self, t) return gfx.text3d.update_settings(self.id, t) end,
+}}
+
+gfx.text3d.new = function(pos, text, preset, extension)
+    local id = gfx.text3d.show(pos, text, preset, extension)
+    return setmetatable({id=id}, Text3D)
+end

src/logic/scripting/scripting_hud.cpp

@@ -17,6 +17,14 @@ static debug::Logger logger("scripting-hud");
 Hud* scripting::hud = nullptr;
 WorldRenderer* scripting::renderer = nullptr;
 
+static void load_script(const std::string& name) {
+    auto file = engine->getPaths()->getResourcesFolder() / "scripts" / name;
+    std::string src = files::read_string(file);
+    logger.info() << "loading script " << file.u8string();
+
+    lua::execute(lua::get_main_state(), 0, src, file.u8string());
+}
+
 void scripting::on_frontend_init(Hud* hud, WorldRenderer* renderer) {
     scripting::hud = hud;
     scripting::renderer = renderer;
@@ -27,6 +35,8 @@ void scripting::on_frontend_init(Hud* hud, WorldRenderer* renderer) {
     lua::openlib(L, "gfx", "particles", particleslib);
     lua::openlib(L, "gfx", "text3d", text3dlib);
 
+    load_script("hud_classes.lua");
+
     if (lua::getglobal(L, "__vc_create_hud_rules")) {
         lua::call_nothrow(L, 0, 0);
     }