From da60f40dfc033a9c9038bc818d45e507dbb5128b Mon Sep 17 00:00:00 2001
From: Andrew Quenehen <betas01_aims@icloud.com>
Date: Sat, 1 Aug 2026 03:53:37 -0300
Subject: [PATCH] fix(input): reset controls on focus loss

Co-authored-by: Cursor <cursoragent@cursor.com>
---
 main.lua                                |  6 +++++-
 tests/engine/input_focus_reset_test.lua | 24 ++++++++++++++++++++++++
 2 files changed, 29 insertions(+), 1 deletion(-)
 create mode 100644 tests/engine/input_focus_reset_test.lua

diff --git a/main.lua b/main.lua
index bbe44f54..f8dd9b74 100644
--- a/main.lua
+++ b/main.lua
@@ -406,6 +406,7 @@ end
 function love.focus(f)
   if editorMode or TouchEditor then return end
   if Importer then
+    require("src.core.Input"):reset()
     if Importer.focus then Importer:focus(f) end
     return
   end
@@ -415,7 +416,10 @@ end
 -- v is true when the window becomes visible again, false on minimize.
 function love.visible(v)
   if editorMode or TouchEditor then return end
-  if Importer then return end
+  if Importer then
+    require("src.core.Input"):reset()
+    return
+  end
   Game:visible(v)
 end
 
diff --git a/tests/engine/input_focus_reset_test.lua b/tests/engine/input_focus_reset_test.lua
new file mode 100644
index 00000000..d403615f
--- /dev/null
+++ b/tests/engine/input_focus_reset_test.lua
@@ -0,0 +1,24 @@
+-- Focus / visibility loss clears held directions (SWNX-18).
+package.path = "./?.lua;./?/init.lua;" .. package.path
+if not _G.love then _G.love = require("tests.love_stub") end
+
+local T = require("tests.harness")
+local check = T.check
+
+local Input = require("src.core.Input")
+local Game = require("src.core.Game")
+
+Input:init()
+Input:keypressed("left")
+Input:step()
+check(Input:isDown("left"), "left held before focus loss")
+
+Game:focus(false)
+check(not Input:isDown("left"), "focus loss clears held direction")
+
+Input:keypressed("up")
+Input:step()
+Game:visible(false)
+check(not Input:isDown("up"), "visibility loss clears held direction")
+
+T.finish()