fix

src/script/cpp_api/s_env.cpp

@@ -150,6 +150,24 @@ void ScriptApiEnv::environment_Step(float dtime)
 }
 
 void ScriptApiEnv::player_event(ServerActiveObject *player, const std::string &type)
+{
+	player_events.emplace_back(player, type);
+}
+
+void ScriptApiEnv::player_event_process()
+{
+	const auto lock = player_events.try_lock_unique_rec();
+	if (!lock->owns_lock())
+		return;
+
+	for (const auto &e : player_events) {
+		player_event_real(e.player, e.type);
+	}
+
+	player_events.clear();
+}
+
+void ScriptApiEnv::player_event_real(ServerActiveObject *player, const std::string &type)
 {
 	SCRIPTAPI_PRECHECKHEADER
 

src/script/cpp_api/s_env.h

@@ -7,6 +7,7 @@
 #include "cpp_api/s_base.h"
 #include "irr_v3d.h"
 #include "mapnode.h"
+#include "threading/concurrent_vector.h"
 #include <unordered_set>
 #include <vector>
 
@@ -26,6 +27,16 @@ class ScriptApiEnv : virtual public ScriptApiBase
 	// Called on player event
 	void player_event(ServerActiveObject *player, const std::string &type);
 
+// fm:
+	void player_event_real(ServerActiveObject *player, const std::string &type);
+	struct pevent
+	{
+		ServerActiveObject *player;
+		std::string type;
+	};
+	concurrent_vector<pevent> player_events;
+	void player_event_process();
+// ==
 	// Called after emerge of a block queued from core.emerge_area()
 	void on_emerge_area_completion(v3s16 blockpos, int action,
 		ScriptCallbackState *state);

src/serverenvironment.cpp

@@ -1553,6 +1553,10 @@ void ServerEnvironment::step(float dtime, double uptime, unsigned int max_cycle_
 	g_profiler->avg("SMap: Blocks", getMap().m_blocks.size());
 #endif
 
+	{
+		getScriptIface()->player_event_process();
+	}
+
 	/*
 		Handle players
 	*/