diff --git a/core/object/undo_redo.cpp b/core/object/undo_redo.cpp
index 3c1d4ef95ea..569e6ae19f6 100644
--- a/core/object/undo_redo.cpp
+++ b/core/object/undo_redo.cpp
@@ -316,6 +316,14 @@ void UndoRedo::commit_action(bool p_execute) {
_redo(p_execute); // perform action
committing--;
+ if (max_steps > 0) {
+ // Clear early steps.
+
+ while (actions.size() > max_steps) {
+ _pop_history_tail();
+ }
+ }
+
if (add_message && callback && actions.size() > 0) {
callback(callback_ud, actions[actions.size() - 1].name);
}
@@ -473,6 +481,14 @@ uint64_t UndoRedo::get_version() const {
return version;
}
+void UndoRedo::set_max_steps(int p_max_steps) {
+ max_steps = p_max_steps;
+}
+
+int UndoRedo::get_max_steps() const {
+ return max_steps;
+}
+
void UndoRedo::set_commit_notify_callback(CommitNotifyCallback p_callback, void *p_ud) {
callback = p_callback;
callback_ud = p_ud;
@@ -517,9 +533,13 @@ void UndoRedo::_bind_methods() {
ClassDB::bind_method(D_METHOD("has_undo"), &UndoRedo::has_undo);
ClassDB::bind_method(D_METHOD("has_redo"), &UndoRedo::has_redo);
ClassDB::bind_method(D_METHOD("get_version"), &UndoRedo::get_version);
+ ClassDB::bind_method(D_METHOD("set_max_steps", "max_steps"), &UndoRedo::set_max_steps);
+ ClassDB::bind_method(D_METHOD("get_max_steps"), &UndoRedo::get_max_steps);
ClassDB::bind_method(D_METHOD("redo"), &UndoRedo::redo);
ClassDB::bind_method(D_METHOD("undo"), &UndoRedo::undo);
+ ADD_PROPERTY(PropertyInfo(Variant::INT, "max_steps", PROPERTY_HINT_RANGE, "0,50,1,or_greater"), "set_max_steps", "get_max_steps");
+
ADD_SIGNAL(MethodInfo("version_changed"));
BIND_ENUM_CONSTANT(MERGE_DISABLE);
diff --git a/core/object/undo_redo.h b/core/object/undo_redo.h
index b3a3322e4bf..62aebff8775 100644
--- a/core/object/undo_redo.h
+++ b/core/object/undo_redo.h
@@ -80,6 +80,7 @@ private:
int current_action = -1;
bool force_keep_in_merge_ends = false;
int action_level = 0;
+ int max_steps = 0;
MergeMode merge_mode = MERGE_DISABLE;
bool merging = false;
uint64_t version = 1;
@@ -135,6 +136,9 @@ public:
uint64_t get_version() const;
+ void set_max_steps(int p_max_steps);
+ int get_max_steps() const;
+
void set_commit_notify_callback(CommitNotifyCallback p_callback, void *p_ud);
void set_method_notify_callback(MethodNotifyCallback p_method_callback, void *p_ud);
diff --git a/doc/classes/UndoRedo.xml b/doc/classes/UndoRedo.xml
index 50414d25802..3d36eafb08e 100644
--- a/doc/classes/UndoRedo.xml
+++ b/doc/classes/UndoRedo.xml
@@ -255,6 +255,11 @@
+
+
+ The maximum number of steps that can be stored in the undo/redo history. If the number of stored steps exceeds this limit, older steps are removed from history and can no longer be reached by calling [method undo]. A value of [code]0[/code] or lower means no limit.
+
+