From 0a8165c0acc85bab1624b94ee28ab67535aedbdd Mon Sep 17 00:00:00 2001
From: Hongyu Ouyang <96765450+casavaca@users.noreply.github.com>
Date: Sat, 20 Jan 2024 12:05:30 -0800
Subject: [PATCH] Make raylib/raygui work better on touchscreen (#3728)

* Fix that touch doesn't work for click/drag/raygui

* Add comments

* comments update
---
 src/platforms/rcore_web.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/platforms/rcore_web.c b/src/platforms/rcore_web.c
index 8c16ff320..a13f69908 100644
--- a/src/platforms/rcore_web.c
+++ b/src/platforms/rcore_web.c
@@ -1646,6 +1646,13 @@ static EM_BOOL EmscriptenTouchCallback(int eventType, const EmscriptenTouchEvent
         else if (eventType == EMSCRIPTEN_EVENT_TOUCHEND) CORE.Input.Touch.currentTouchState[i] = 0;
     }
 
+    // Update mouse position if we detect a single touch.
+    if (CORE.Input.Touch.pointCount == 1)
+    {
+        CORE.Input.Mouse.currentPosition.x = CORE.Input.Touch.position[0].x;
+        CORE.Input.Mouse.currentPosition.y = CORE.Input.Touch.position[0].y;
+    }
+
 #if defined(SUPPORT_GESTURES_SYSTEM)
     GestureEvent gestureEvent = {0};