Scopes - Adds 'Reset zero' interaction (advanced ballistics only) (#5789)

* Allows you to reset any zero adjustment on your current scope

addons/scopes/CfgVehicles.hpp

@@ -13,6 +13,16 @@ class CfgVehicles {
                     //icon = QPATHTOF(UI\...); // TODO
                     exceptions[] = {"notOnMap", "isNotInside", "isNotSwimming", "isNotSitting"};
                 };
+                class GVAR(resetZero) {
+                    // Updates the zero reference
+                    displayName = CSTRING(ResetZero);
+                    condition = QUOTE([ACE_player] call FUNC(canResetZero));
+                    statement = QUOTE([ACE_player] call FUNC(resetZero));
+                    showDisabled = 0;
+                    priority = 0.2;
+                    //icon = QPATHTOF(UI\...); // TODO
+                    exceptions[] = {"notOnMap", "isNotInside", "isNotSwimming", "isNotSitting"};
+                };
             };
         };
     };

addons/scopes/XEH_PREP.hpp

@@ -4,6 +4,7 @@ PREP(adjustZero);
 PREP(applyScopeAdjustment);
 PREP(calculateZeroAngleCorrection);
 PREP(canAdjustZero);
+PREP(canResetZero);
 PREP(firedEH);
 PREP(getBaseAngle); 
 PREP(getBoreHeight);
@@ -11,4 +12,5 @@ PREP(getCurrentZeroRange);
 PREP(getOptics);
 PREP(initModuleSettings);
 PREP(inventoryCheck);
+PREP(resetZero);
 PREP(showZeroing);

addons/scopes/functions/fnc_adjustZero.sqf

@@ -1,6 +1,6 @@
 /*
  * Author: KoffeinFlummi, Ruthberg
- * Updates the zero reference for the current scope
+ * Updates the zero adjustment of the current scope
  *
  * Arguments:
  * 0: Unit <OBJECT>

addons/scopes/functions/fnc_canAdjustZero.sqf

@@ -1,6 +1,6 @@
 /*
  * Author: KoffeinFlummi, Ruthberg
- * Changes the adjustment for the current scope
+ * Checks if the unit can change the zero adjustment of the current scope
  *
  * Arguments:
  * 0: Unit <OBJECT>

addons/scopes/functions/fnc_canResetZero.sqf

@@ -0,0 +1,31 @@
+/*
+ * Author: KoffeinFlummi, Ruthberg
+ * Checks if the unit can reset the zero adjustment of the current scope
+ *
+ * Arguments:
+ * 0: Unit <OBJECT>
+ *
+ * Return Value:
+ * Can we reset the zero reference? <BOOL>
+ *
+ * Example:
+ * [player] call ace_scopes_fnc_canResetZero
+ *
+ * Public: No
+ */
+#include "script_component.hpp"
+
+params ["_unit"];
+
+if (cameraView == "GUNNER") exitWith {false};
+if (vehicle _unit != _unit) exitWith {false};
+if (!(missionNamespace getVariable [QEGVAR(advanced_ballistics,enabled), false])) exitWith {false};
+
+private _weaponIndex = [_unit, currentWeapon _unit] call EFUNC(common,getWeaponIndex);
+if (_weaponIndex < 0) exitWith {false};
+
+private _adjustment = _unit getVariable [QGVAR(Adjustment), [[0, 0, 0], [0, 0, 0], [0, 0, 0]]];
+private _zero = (_adjustment select _weaponIndex) select 2;
+
+// You can only reset your zero reference, if it is not 0 already
+_zero != 0

addons/scopes/functions/fnc_resetZero.sqf

@@ -0,0 +1,38 @@
+/*
+ * Author: KoffeinFlummi, Ruthberg
+ * Resets the zero adjustment of the current scope
+ *
+ * Arguments:
+ * 0: Unit <OBJECT>
+ *
+ * Return Value:
+ * true <BOOL>
+ *
+ * Example:
+ * [player] call ace_scopes_fnc_resetZero
+ *
+ * Public: No
+ */
+#include "script_component.hpp"
+
+params ["_unit"];
+
+if (vehicle _unit != _unit) exitWith {false};
+
+private _weaponClass = currentWeapon _unit;
+private _weaponIndex = [_unit, _weaponClass] call EFUNC(common,getWeaponIndex);
+if (_weaponIndex < 0) exitWith {false};
+
+private _adjustment = _unit getVariable [QGVAR(Adjustment), [[0, 0, 0], [0, 0, 0], [0, 0, 0]]];
+private _zeroing = _adjustment select _weaponIndex;
+_zeroing params ["_elevation", "_windage", "_zero"];
+
+_elevation = round((_zero + _elevation) * 10) / 10;
+_zero = 0;
+
+private _opticsClass = ([_unit] call FUNC(getOptics)) select _weaponIndex;
+profileNamespace setVariable [format[QGVAR(PersistentZero_%1_%2), _weaponClass, _opticsClass], nil];
+
+[_unit, _elevation, _windage, _zero] call FUNC(applyScopeAdjustment);
+
+true

addons/scopes/stringtable.xml

@@ -368,6 +368,10 @@
             <Chinesesimp>设定归零</Chinesesimp>
             <Chinese>設定歸零</Chinese>
         </Key>
+        <Key ID="STR_ACE_Scopes_ResetZero">
+            <English>Reset zero adjustment</English>
+            <German>Nullung zurücksetzen</German>
+        </Key>
         <Key ID="STR_ACE_Scopes_Description">
             <English>This module adds windage and elevation adjustment turrets on high power rifle scopes.</English>
             <German>Dieses Modul fügt Absehenverstellung (horizontal und vertikal) zu Zielfernrohren hinzu.</German>