add get_text, set_text, get_pos, set_pos

res/content/base/scripts/hud.lua

@@ -1,6 +1,8 @@
 local DROP_FORCE = 8
 local DROP_INIT_VEL = {0, 3, 0}
 
+local textid
+
 function on_hud_open()
     input.add_callback("player.drop", function ()
         if hud.is_paused() or hud.is_inventory_open() then
@@ -25,9 +27,14 @@ function on_hud_open()
         drop.rigidbody:set_vel(velocity)
     end)
 
-    gfx.text3d.show({0.5, 99.5, 0.0015}, "Segmentation fault", {
+    textid = gfx.text3d.show({0.5, 99.5, 0.0015}, "Segmentation fault", {
         scale=0.005,
         color={0, 0, 0, 1},
         displayMode="static_billboard"
     })
 end
+
+function on_hud_render()
+    local pos = gfx.text3d.get_pos(textid)
+    gfx.text3d.set_pos(textid, {pos[1], pos[2]+time.delta(), pos[3]})
+end

src/graphics/render/TextNote.cpp

@@ -6,6 +6,10 @@ TextNote::TextNote(std::wstring text, NotePreset preset, glm::vec3 position)
       position(std::move(position)) {
 }
 
+void TextNote::setText(std::wstring_view text) {
+    this->text = text;
+}
+
 const std::wstring& TextNote::getText() const {
     return text;
 }
@@ -14,6 +18,10 @@ const NotePreset& TextNote::getPreset() const {
     return preset;
 }
 
+void TextNote::setPosition(const glm::vec3& position) {
+    this->position = position;
+}
+
 const glm::vec3& TextNote::getPosition() const {
     return position;
 }

src/graphics/render/TextNote.hpp

@@ -10,9 +10,13 @@ class TextNote {
 public:
     TextNote(std::wstring text, NotePreset preset, glm::vec3 position);
 
+    void setText(std::wstring_view text);
+
     const std::wstring& getText() const;
 
     const NotePreset& getPreset() const;
 
+    void setPosition(const glm::vec3& position);
+
     const glm::vec3& getPosition() const;
 };

src/graphics/render/TextsRenderer.cpp

@@ -96,6 +96,14 @@ u64id_t TextsRenderer::add(std::unique_ptr<TextNote> note) {
     return uid;
 }
 
+TextNote* TextsRenderer::get(u64id_t id) const {
+    const auto& found = notes.find(id);
+    if (found == notes.end()) {
+        return nullptr;
+    }
+    return found->second.get();
+}
+
 void TextsRenderer::remove(u64id_t id) {
     notes.erase(id);
 }

src/graphics/render/TextsRenderer.hpp

@@ -41,5 +41,7 @@ public:
 
     u64id_t add(std::unique_ptr<TextNote> note);
 
+    TextNote* get(u64id_t id) const;
+
     void remove(u64id_t id);
 };

src/logic/scripting/lua/libs/libtext3d.cpp

@@ -28,8 +28,40 @@ static int l_hide(lua::State* L) {
     return 0;
 }
 
+static int l_get_text(lua::State* L) {
+    if (auto note = renderer->texts->get(lua::tointeger(L, 1))) {
+        return lua::pushwstring(L, note->getText());
+    }
+    return 0;
+}
+
+static int l_set_text(lua::State* L) {
+    if (auto note = renderer->texts->get(lua::tointeger(L, 1))) {
+        note->setText(lua::require_wstring(L, 2));
+    }
+    return 0;
+}
+
+static int l_get_pos(lua::State* L) {
+    if (auto note = renderer->texts->get(lua::tointeger(L, 1))) {
+        return lua::pushvec(L, note->getPosition());
+    }
+    return 0;
+}
+
+static int l_set_pos(lua::State* L) {
+    if (auto note = renderer->texts->get(lua::tointeger(L, 1))) {
+        note->setPosition(lua::tovec3(L, 2));
+    }
+    return 0;
+}
+
 const luaL_Reg text3dlib[] = {
     {"show", lua::wrap<l_show>},
     {"hide", lua::wrap<l_hide>},
+    {"get_text", lua::wrap<l_get_text>},
+    {"set_text", lua::wrap<l_set_text>},
+    {"get_pos", lua::wrap<l_get_pos>},
+    {"set_pos", lua::wrap<l_set_pos>},
     {NULL, NULL}
 };