add gfx.text3d.spawn(...)

res/content/base/scripts/hud.lua

@@ -24,4 +24,10 @@ function on_hud_open()
         local velocity = vec3.add(throw_force, vec3.add(pvel, DROP_INIT_VEL))
         drop.rigidbody:set_vel(velocity)
     end)
+
+    gfx.text3d.spawn({0.5, 99.5, 0.0015}, "Segmentation fault", {
+        scale = 0.005,
+        color = {0, 0, 0, 1},
+        displayMode = "static_billboard"
+    })
 end

src/graphics/render/TextsRenderer.cpp

@@ -78,25 +78,20 @@ void TextsRenderer::renderTexts(
     bool hudVisible,
     bool frontLayer
 ) {
-    std::vector<TextNote> notes;
-    NotePreset preset;
-    preset.displayMode = NoteDisplayMode::STATIC_BILLBOARD;
-    preset.color = glm::vec4(0, 0, 0, 1);
-    preset.scale = 0.005f;
-
-    notes.emplace_back(
-        L"Segmentation fault",
-        std::move(preset),
-        glm::vec3(0.5f, 99.5f, 0.0015f)
-    );
     auto& shader = assets.require<Shader>("ui3d");
 
     shader.use();
     shader.uniformMatrix("u_projview", camera.getProjView());
     shader.uniformMatrix("u_apply", glm::mat4(1.0f));
     batch.begin();
-    for (const auto& note : notes) {
-        renderText(note, context, camera, settings, hudVisible);
+    for (const auto& [id, note] : notes) {
+        renderText(*note, context, camera, settings, hudVisible);
     }
     batch.flush();
 }
+
+u64id_t TextsRenderer::add(std::unique_ptr<TextNote> note) {
+    u64id_t uid = nextNote++;
+    notes[uid] = std::move(note);
+    return uid;
+}

src/graphics/render/TextsRenderer.hpp

@@ -1,5 +1,10 @@
 #pragma once
 
+#include <unordered_map>
+#include <memory>
+
+#include "typedefs.hpp"
+
 class DrawContext;
 class Camera;
 class Assets;
@@ -13,6 +18,9 @@ class TextsRenderer {
     const Assets& assets;
     const Frustum& frustum;
 
+    std::unordered_map<u64id_t, std::unique_ptr<TextNote>> notes;
+    u64id_t nextNote = 1;
+
     void renderText(
         const TextNote& note,
         const DrawContext& context,
@@ -30,4 +38,6 @@ class TextsRenderer {
         bool hudVisible,
         bool frontLayer
     );
+
+    u64id_t add(std::unique_ptr<TextNote> note);
 };

src/graphics/render/WorldRenderer.hpp

@@ -39,7 +39,6 @@ class WorldRenderer {
     std::unique_ptr<LineBatch> lineBatch;
     std::unique_ptr<Batch3D> batch3d;
     std::unique_ptr<ChunksRenderer> chunks;
-    std::unique_ptr<TextsRenderer> texts;
     std::unique_ptr<GuidesRenderer> guides;
     std::unique_ptr<Skybox> skybox;
     std::unique_ptr<ModelBatch> modelBatch;
@@ -67,6 +66,7 @@ class WorldRenderer {
         float fogFactor
     );
 public:
+    std::unique_ptr<TextsRenderer> texts;
     std::unique_ptr<ParticlesRenderer> particles;
 
     static bool showChunkBorders;

src/logic/scripting/lua/libs/api_lua.hpp

@@ -33,7 +33,8 @@ extern const luaL_Reg mat4lib[];
 extern const luaL_Reg packlib[];
 extern const luaL_Reg particleslib[];
 extern const luaL_Reg playerlib[];
-extern const luaL_Reg quatlib[];  // quat.cpp
+extern const luaL_Reg quatlib[];
+extern const luaL_Reg text3dlib[];
 extern const luaL_Reg timelib[];
 extern const luaL_Reg tomllib[];
 extern const luaL_Reg utf8lib[];

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

@@ -0,0 +1,29 @@
+#include "api_lua.hpp"
+
+#include "logic/scripting/scripting_hud.hpp"
+#include "graphics/render/WorldRenderer.hpp"
+#include "graphics/render/TextsRenderer.hpp"
+#include "graphics/render/TextNote.hpp"
+#include "engine.hpp"
+
+using namespace scripting;
+
+static int l_spawn(lua::State* L) {
+    auto position = lua::tovec3(L, 1);
+    auto text = lua::require_wstring(L, 2);
+    auto preset = lua::tovalue(L, 3);
+    auto extension = lua::tovalue(L, 4);
+
+    NotePreset notePreset {};
+    notePreset.deserialize(preset);
+    if (extension != nullptr) {
+        notePreset.deserialize(extension);
+    }
+    auto note = std::make_unique<TextNote>(text, notePreset, position);
+    return lua::pushinteger(L, renderer->texts->add(std::move(note)));
+}
+
+const luaL_Reg text3dlib[] = {
+    {"spawn", lua::wrap<l_spawn>},
+    {NULL, NULL}
+};

src/logic/scripting/scripting_hud.cpp

@@ -25,6 +25,7 @@ void scripting::on_frontend_init(Hud* hud, WorldRenderer* renderer) {
 
     lua::openlib(L, "hud", hudlib);
     lua::openlib(L, "gfx", "particles", particleslib);
+    lua::openlib(L, "gfx", "text3d", text3dlib);
 
     if (lua::getglobal(L, "__vc_create_hud_rules")) {
         lua::call_nothrow(L, 0, 0);