From 80cd593113db07a024319080be8310a45854b1a8 Mon Sep 17 00:00:00 2001
From: swordcube <49110074+swordcube@users.noreply.github.com>
Date: Mon, 26 Feb 2024 21:50:53 -0600
Subject: [PATCH] Chart events can now be saved into a separate JSON file

---
 source/funkin/backend/chart/Chart.hx     | 28 ++++++++++++++++++++++++
 source/funkin/editors/charter/Charter.hx | 13 +++++++++++
 2 files changed, 41 insertions(+)

diff --git a/source/funkin/backend/chart/Chart.hx b/source/funkin/backend/chart/Chart.hx
index 793928ca..ae6d62df 100644
--- a/source/funkin/backend/chart/Chart.hx
+++ b/source/funkin/backend/chart/Chart.hx
@@ -18,6 +18,24 @@ class Chart {
 	 */
 	public inline static var defaultColor:FlxColor = 0xFF9271FD;
 
+	public static function loadEventsJson(songName:String, difficulty:String = "normal") {
+		var eventsPath = Paths.file('songs/${songName.toLowerCase()}/events.json');
+		var eventsDiffPath = Paths.file('songs/${songName.toLowerCase()}/events-${difficulty.toLowerCase()}.json');
+	
+		var data:Array<ChartEvent> = null;
+		for(path in [eventsDiffPath, eventsPath]) {
+			if (Assets.exists(path)) {
+				try {
+					data = Json.parse(Assets.getText(path)).events;
+				} catch(e) {
+					Logs.trace('Failed to load song event data for ${songName} ($path): ${Std.string(e)}', ERROR);
+				}
+				if (data != null) break;
+			}
+		}
+		return data;
+	}
+
 	public static function loadChartMeta(songName:String, difficulty:String = "normal", fromMods:Bool = true) {
 		var metaPath = Paths.file('songs/${songName.toLowerCase()}/meta.json');
 		var metaDiffPath = Paths.file('songs/${songName.toLowerCase()}/meta-${difficulty.toLowerCase()}.json');
@@ -145,6 +163,16 @@ class Chart {
 			}
 			base.meta = loadedMeta;
 		}
+
+		/**
+		 * events.json + events-diff.json LOADING
+		 */
+		#if REGION
+		var extraEvents:Array<ChartEvent> = loadEventsJson(songName, difficulty);
+		if (extraEvents != null)
+			base.events = base.events.concat(extraEvents);
+		#end
+
 		return base;
 	}
 
diff --git a/source/funkin/editors/charter/Charter.hx b/source/funkin/editors/charter/Charter.hx
index 5c1efe3d..28c25d05 100644
--- a/source/funkin/editors/charter/Charter.hx
+++ b/source/funkin/editors/charter/Charter.hx
@@ -137,6 +137,11 @@ class Charter extends UIState {
 						keybind: [CONTROL, ALT ,SHIFT, S],
 						onSelect: _file_meta_saveas,
 					},
+					{
+						label: "Save Events",
+						keybind: [CONTROL, TAB, S],
+						onSelect: _file_events_save,
+					},
 					null,
 					{
 						label: "Exit",
@@ -1131,6 +1136,14 @@ class Charter extends UIState {
 		}));
 	}
 
+	function _file_events_save(_) {
+		#if sys
+		openSubState(new SaveSubstate(Json.stringify({events: PlayState.SONG.events}), {
+			defaultSaveFile: 'events-${__diff.toLowerCase()}.json'
+		}));
+		#end
+	}
+
 	#if sys
 	function saveTo(path:String) {
 		buildChart();