From 14d2cdd000450e7082577f874148607df14dd540 Mon Sep 17 00:00:00 2001
From: Vittorio Parrella <vittorioparrella+1@gmail.com>
Date: Fri, 18 Jul 2025 23:58:14 +0200
Subject: [PATCH] feat: added levelJsonCacheActive global ui option to help
 with loading big projects

---
 app/assets/tpl/editAppSettings.html                      | 8 ++++++++
 src/electron.common/Settings.hx                          | 2 ++
 src/electron.renderer/data/Level.hx                      | 5 +++++
 src/electron.renderer/ui/ProjectLoader.hx                | 4 ++++
 src/electron.renderer/ui/modal/dialog/EditAppSettings.hx | 7 +++++++
 5 files changed, 26 insertions(+)

diff --git a/app/assets/tpl/editAppSettings.html b/app/assets/tpl/editAppSettings.html
index 32b333489..65bbe6222 100644
--- a/app/assets/tpl/editAppSettings.html
+++ b/app/assets/tpl/editAppSettings.html
@@ -82,6 +82,14 @@ <h3>Visuals</h3>
 				<input type="checkbox" id="startFullScreen" />
 			</dd>
 
+			<dt>
+				<label for="levelJsonCacheActive">Cache the json levels data for faster editing</label>
+				<info>Disable this if you have issues loading big projects.</info>
+			</dt>
+			<dd>
+				<input type="checkbox" id="levelJsonCacheActive" />
+			</dd>
+
 			<dt>
 				<label for="colorBlind">Prefer color-blind colors</label>
 				<info>Enable this option to use color-blind friendly colors by default for newly created entities, enums or intGrid values.</info>
diff --git a/src/electron.common/Settings.hx b/src/electron.common/Settings.hx
index 15838d08f..5f4db7697 100644
--- a/src/electron.common/Settings.hx
+++ b/src/electron.common/Settings.hx
@@ -14,6 +14,7 @@ typedef AppSettings = {
 	var showDetails : Bool;
 	var useBestGPU : Bool;
 	var startFullScreen: Bool;
+	var levelJsonCacheActive: Bool;
 	var autoInstallUpdates : Bool;
 	var colorBlind : Bool;
 	var blurMask : Bool;
@@ -96,6 +97,7 @@ class Settings {
 			showDetails: true,
 			useBestGPU: true,
 			startFullScreen: false,
+			levelJsonCacheActive: true,
 			autoInstallUpdates: true,
 			colorBlind: false,
 			blurMask: true,
diff --git a/src/electron.renderer/data/Level.hx b/src/electron.renderer/data/Level.hx
index 4dc7260b4..ceb15c104 100644
--- a/src/electron.renderer/data/Level.hx
+++ b/src/electron.renderer/data/Level.hx
@@ -4,6 +4,7 @@ class Level {
 	var _project : Project;
 	public var _world : World;
 
+	var settings(get,never) : Settings; inline function get_settings() return App.ME.settings;
 	var _cachedJson : Null<{ str:String, json:ldtk.Json.LevelJson }>;
 
 	@:allow(data.Project, data.World)
@@ -379,9 +380,13 @@ class Level {
 	}
 
 	function setJsonCache(json:ldtk.Json.LevelJson, skipHeader:Bool) {
+		if( settings.v.levelJsonCacheActive ) {
 		_cachedJson = {
 			str: ui.ProjectSaver.jsonStringify(_project, json, skipHeader ),
 			json: json,
+			}
+		} else {
+			_cachedJson = null;
 		}
 	}
 
diff --git a/src/electron.renderer/ui/ProjectLoader.hx b/src/electron.renderer/ui/ProjectLoader.hx
index c16e02126..9f6cd19f9 100644
--- a/src/electron.renderer/ui/ProjectLoader.hx
+++ b/src/electron.renderer/ui/ProjectLoader.hx
@@ -158,6 +158,10 @@ class ProjectLoader {
 										var raw = NT.readFileString(path);
 										var lJson = haxe.Json.parse(raw);
 										var l = data.Level.fromJson(p, w, lJson, true);
+										// signal recycling of used values
+										raw = null;
+										lJson = null;
+										// save loaded level data
 										w.levels[curIdx] = l;
 									}
 									catch(e:Dynamic) {
diff --git a/src/electron.renderer/ui/modal/dialog/EditAppSettings.hx b/src/electron.renderer/ui/modal/dialog/EditAppSettings.hx
index 0d6a14d63..26f8d68d2 100644
--- a/src/electron.renderer/ui/modal/dialog/EditAppSettings.hx
+++ b/src/electron.renderer/ui/modal/dialog/EditAppSettings.hx
@@ -86,6 +86,13 @@ class EditAppSettings extends ui.modal.Dialog {
 			App.ME.updateBodyClasses();
 		}
 
+		// Levels JSON cache
+		var j = Input.linkToHtmlInput(settings.v.levelJsonCacheActive, jForm.find("#levelJsonCacheActive"));
+		j.onValueChange = (v)->{
+			onSettingChanged();
+			App.ME.updateBodyClasses();
+		}
+
 		// Single layer mode intensity
 		var allValues = [0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1];
 		if( !allValues.contains(settings.v.singleLayerModeIntensity) ) {