add heightmap-based test generation

src/logic/scripting/lua/libcore.cpp

@@ -3,6 +3,7 @@
 
 #include "constants.hpp"
 #include "engine.hpp"
+#include "content/Content.hpp"
 #include "files/engine_paths.hpp"
 #include "files/settings_io.hpp"
 #include "frontend/menu.hpp"
@@ -11,8 +12,8 @@
 #include "logic/LevelController.hpp"
 #include "window/Events.hpp"
 #include "window/Window.hpp"
+#include "voxels/WorldGenerator.hpp"
 #include "world/Level.hpp"
-#include "world/WorldGenerators.hpp"
 #include "api_lua.hpp"
 
 using namespace scripting;
@@ -173,18 +174,19 @@ static int l_quit(lua::State*) {
 /// @brief Get the default world generator
 /// @return The ID of the default world generator
 static int l_get_default_generator(lua::State* L) {
-    return lua::pushstring(L, WorldGenerators::getDefaultGeneratorID());
+    return lua::pushstring(L, WorldGenerator::DEFAULT);
 }
 
 /// @brief Get a list of all world generators
 /// @return A table with the IDs of all world generators
 static int l_get_generators(lua::State* L) {
-    const auto& generators = WorldGenerators::getGeneratorsIDs();
+    const auto& generators = content->generators.getDefs();
     lua::createtable(L, generators.size(), 0);
 
     int i = 0;
-    for (auto& id : generators) {
-        lua::pushstring(L, id);
+    for (auto& [name, _] : generators) {
+        std::cout << name << std::endl;
+        lua::pushstring(L, name);
         lua::rawseti(L, i + 1);
         i++;
     }

src/logic/scripting/lua/lua_custom_types.hpp

@@ -37,7 +37,7 @@ namespace lua {
         LuaHeightmap(uint width, uint height) 
         : map(std::make_shared<Heightmap>(width, height)) {}
 
-        virtual ~LuaHeightmap() = default;
+        virtual ~LuaHeightmap();
 
         uint getWidth() const {
             return map->getWidth();

src/logic/scripting/lua/lua_type_heightmap.cpp

@@ -6,6 +6,7 @@
 #include <filesystem>
 
 #include "util/functional_util.hpp"
+#define FNL_IMPL
 #include "maths/FastNoiseLite.h"
 #include "coders/png.hpp"
 #include "files/util.hpp"
@@ -16,6 +17,9 @@ using namespace lua;
 
 static fnl_state noise = fnlCreateState();
 
+LuaHeightmap::~LuaHeightmap() {;
+}
+
 static int l_dump(lua::State* L) {
     if (auto heightmap = touserdata<LuaHeightmap>(L, 1)) {
         auto filename = tostring(L, 2);
@@ -95,7 +99,7 @@ static int l_noise(lua::State* L) {
 template<template<class> class Op>
 static int l_binop_func(lua::State* L) {
     Op<float> op;
-    if (auto heightmap = touserdata<Heightmap>(L, 1)) {
+    if (auto heightmap = touserdata<LuaHeightmap>(L, 1)) {
         uint w = heightmap->getWidth();
         uint h = heightmap->getHeight();
         auto heights = heightmap->getValues();
@@ -124,7 +128,7 @@ static int l_binop_func(lua::State* L) {
 template<template<class> class Op>
 static int l_unaryop_func(lua::State* L) {
     Op<float> op;
-    if (auto heightmap = touserdata<Heightmap>(L, 1)) {
+    if (auto heightmap = touserdata<LuaHeightmap>(L, 1)) {
         uint w = heightmap->getWidth();
         uint h = heightmap->getHeight();
         auto heights = heightmap->getValues();