From 2a3ff8e185855a11e3777e92af6e4d7a3a8bbb71 Mon Sep 17 00:00:00 2001
From: johnb432 <58661205+johnb432@users.noreply.github.com>
Date: Sat, 11 May 2024 03:39:41 +0200
Subject: [PATCH] Medical Treatment - Fix low SpO2 making units go into cardiac
 arrest again (#10003)

* Set SpO2 after successful CPR

* Update fnc_cprLocal.sqf

* Add API

* Update fnc_cprLocal.sqf
---
 addons/medical_treatment/functions/fnc_cprLocal.sqf | 7 ++++++-
 docs/wiki/framework/medical-treatment-framework.md  | 7 +++++++
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/addons/medical_treatment/functions/fnc_cprLocal.sqf b/addons/medical_treatment/functions/fnc_cprLocal.sqf
index 228774b2f6..e6b1299027 100644
--- a/addons/medical_treatment/functions/fnc_cprLocal.sqf
+++ b/addons/medical_treatment/functions/fnc_cprLocal.sqf
@@ -24,9 +24,14 @@ TRACE_2("cprLocal",_medic,_patient);
 private _bloodVolume = GET_BLOOD_VOLUME(_patient);
 private _successChance = linearConversion [BLOOD_VOLUME_CLASS_4_HEMORRHAGE, BLOOD_VOLUME_CLASS_2_HEMORRHAGE, _bloodVolume, GVAR(cprSuccessChanceMin), GVAR(cprSuccessChanceMax), true];
 if ((random 1) < _successChance) then {
+    // If SpO2 is too low, it will make HR skyrocket to the point where patient goes back into CA
+    // Allow 3rd party mods to disable this mechanic
+    if (missionNamespace getVariable [QGVAR(setSpO2UponCPRSuccess), true] && {GET_SPO2(_patient) < DEFAULT_SPO2 / 2}) then {
+        _patient setVariable [VAR_SPO2, DEFAULT_SPO2 / 2, true];
+    };
+
     TRACE_2("CPR random success",_bloodVolume,_successChance);
     [QEGVAR(medical,CPRSucceeded), _patient] call CBA_fnc_localEvent;
 } else {
     TRACE_2("CPR random fail",_bloodVolume,_successChance);
 };
-
diff --git a/docs/wiki/framework/medical-treatment-framework.md b/docs/wiki/framework/medical-treatment-framework.md
index 736295804a..52e661a516 100644
--- a/docs/wiki/framework/medical-treatment-framework.md
+++ b/docs/wiki/framework/medical-treatment-framework.md
@@ -128,3 +128,10 @@ If a mission maker wishes to disable Zeus access to the medical menu, they can s
 ```sqf
 ace_medical_gui_enableZeusModule = false; // default is true
 ```
+
+### 3.3 SpO2 Configuration
+
+If 3rd party mods want to disable SpO2 being set to a minimum upon successful CPR, they can set the variable below:
+```sqf
+ace_medical_treatment_setSpO2UponCPRSuccess = false; // default is true
+```