add 'on_block_tick' event

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

@@ -707,6 +707,25 @@ static int l_has_tag(lua::State* L) {
     return 0;
 }
 
+static int l_pull_register_events(lua::State* L) {
+    auto events = blocks_agent::pull_register_events();
+    if (events.empty())
+        return 0;
+
+    lua::createtable(L, events.size() * 4, 0);
+    for (int i = 0; i < events.size(); i++) {
+        const auto& event = events[i];
+        lua::pushinteger(L, static_cast<int>(event.type) | event.id << 16);
+        lua::rawseti(L, i * 4 + 1);
+
+        for (int j = 0; j < 3; j++) {
+            lua::pushinteger(L, event.coord[j]);
+            lua::rawseti(L, i * 4 + j + 2);
+        }
+    }
+    return 1;
+}
+
 const luaL_Reg blocklib[] = {
     {"index", lua::wrap<l_index>},
     {"name", lua::wrap<l_get_def>},
@@ -747,5 +766,6 @@ const luaL_Reg blocklib[] = {
     {"set_field", lua::wrap<l_set_field>},
     {"reload_script", lua::wrap<l_reload_script>},
     {"has_tag", lua::wrap<l_has_tag>},
+    {"__pull_register_events", lua::wrap<l_pull_register_events>},
     {NULL, NULL}
 };

src/logic/scripting/scripting.cpp

@@ -24,6 +24,7 @@
 #include "util/timeutil.hpp"
 #include "voxels/Block.hpp"
 #include "voxels/Chunk.hpp"
+#include "voxels/blocks_agent.hpp"
 #include "world/Level.hpp"
 #include "world/World.hpp"
 #include "interfaces/Process.hpp"
@@ -464,6 +465,7 @@ void scripting::on_chunk_present(const Chunk& chunk, bool loaded) {
             );
         }
     }
+    blocks_agent::on_chunk_present(*content->getIndices(), chunk);
 }
 
 void scripting::on_chunk_remove(const Chunk& chunk) {
@@ -478,6 +480,7 @@ void scripting::on_chunk_remove(const Chunk& chunk) {
             );
         }
     }
+    blocks_agent::on_chunk_remove(*content->getIndices(), chunk);
 }
 
 void scripting::on_inventory_open(const Player* player, const Inventory& inventory) {
@@ -648,6 +651,8 @@ void scripting::load_content_script(
         register_event(env, "on_replaced", prefix + ".replaced");
     funcsset.oninteract =
         register_event(env, "on_interact", prefix + ".interact");
+    funcsset.onblocktick =
+        register_event(env, "on_block_tick", prefix + ".blocktick");
     funcsset.onblockstick =
         register_event(env, "on_blocks_tick", prefix + ".blockstick");
 }