From 302676bb7707818de553a3288996e0aa43da5de4 Mon Sep 17 00:00:00 2001
From: TARO-gh <131171129+TARO-gh@users.noreply.github.com>
Date: Fri, 3 Apr 2026 15:35:29 +0900
Subject: [PATCH] fix(hud-overlay): ignore duplicate drag mousemove events to
 stop hold-drift

---
 electron/windows.ts                    | 8 ++++++++
 src/components/launch/LaunchWindow.tsx | 7 +++++++
 2 files changed, 15 insertions(+)

diff --git a/electron/windows.ts b/electron/windows.ts
index 1c027ed7..056541cb 100644
--- a/electron/windows.ts
+++ b/electron/windows.ts
@@ -183,6 +183,7 @@ ipcMain.on("hud-overlay-set-ignore-mouse", (_event, ignore: boolean) => {
 });
 
 let hudDragOffset: { x: number; y: number } | null = null;
+let hudDragLastCursor: { x: number; y: number } | null = null;
 
 ipcMain.on("hud-overlay-drag", (_event, phase: string, screenX: number, screenY: number) => {
 	if (!hudOverlayWindow || hudOverlayWindow.isDestroyed()) return;
@@ -190,13 +191,20 @@ ipcMain.on("hud-overlay-drag", (_event, phase: string, screenX: number, screenY:
 	if (phase === "start") {
 		const bounds = hudOverlayWindow.getBounds();
 		hudDragOffset = { x: screenX - bounds.x, y: screenY - bounds.y };
+		hudDragLastCursor = { x: screenX, y: screenY };
 	} else if (phase === "move" && hudDragOffset) {
+		if (hudDragLastCursor && hudDragLastCursor.x === screenX && hudDragLastCursor.y === screenY) {
+			return;
+		}
+
+		hudDragLastCursor = { x: screenX, y: screenY };
 		hudOverlayWindow.setPosition(
 			Math.round(screenX - hudDragOffset.x),
 			Math.round(screenY - hudDragOffset.y),
 		);
 	} else if (phase === "end") {
 		hudDragOffset = null;
+		hudDragLastCursor = null;
 	}
 });
 
diff --git a/src/components/launch/LaunchWindow.tsx b/src/components/launch/LaunchWindow.tsx
index 46bef471..9ed4daad 100644
--- a/src/components/launch/LaunchWindow.tsx
+++ b/src/components/launch/LaunchWindow.tsx
@@ -1178,7 +1178,14 @@ export function LaunchWindow() {
 								e.preventDefault();
 								isDraggingRef.current = true;
 								window.electronAPI?.hudOverlayDrag?.("start", e.screenX, e.screenY);
+								let lastScreenX = e.screenX;
+								let lastScreenY = e.screenY;
 								const handleMove = (ev: MouseEvent) => {
+									if (ev.screenX === lastScreenX && ev.screenY === lastScreenY) {
+										return;
+									}
+									lastScreenX = ev.screenX;
+									lastScreenY = ev.screenY;
 									window.electronAPI?.hudOverlayDrag?.("move", ev.screenX, ev.screenY);
 								};
 								const handleUp = () => {