add cartridge ejection effect on repeat (#1158)

* add cartridge effect on repeat

* optimize

* velocity one frame later to fix drawn position in frame 0

* update variable names

Author: commy2

addons/events/fnc_weaponEvents.sqf

@@ -84,7 +84,7 @@ if (!_isEmpty || _onEmpty) then {
             "_unit", "_weapon", "_muzzle", "_optic",
             "_handAction", "_sound", "_soundSource",
             "_expectedMagazineCount", "_time", "_delay",
-            "_triggerReleased"
+            "_triggerReleased", "_config"
         ];
 
         // exit if unit switched weapon
@@ -126,11 +126,66 @@ if (!_isEmpty || _onEmpty) then {
             _soundSource say3D _sound;
         };
 
+        // eject cartidge on repeat
+        private _cartridgeType = getText (_config >> "cartridgeType");
+
+        if (_cartridgeType != "") then {
+            private _cartridgeEjectPosition = getArray (_config >> "cartridgeEjectPosition");
+            private _cartridgeEjectVelocity = getArray (_config >> "cartridgeEjectVelocity");
+            private _cartridgeEjectDelay = getNumber (_config >> "cartridgeEjectDelay");
+
+            if (_cartridgeEjectPosition isEqualTo []) then {
+                _cartridgeEjectPosition = [0,0,0];
+            };
+
+            if (_cartridgeEjectVelocity isEqualTo []) then {
+                _cartridgeEjectVelocity = [0,1,0];
+            };
+
+            [{
+                params ["_unit", "_weapon", "_cartridgeType", "_cartridgeEjectPosition", "_cartridgeEjectVelocity"];
+
+                private _pelvis = _unit modelToWorldVisualWorld (_unit selectionPosition "Pelvis");
+                private _camera = _unit modelToWorldVisualWorld (_unit selectionPosition "camera");
+                private _bodyUp = _pelvis vectorFromTo _camera;
+
+                private _weaponDir = _unit weaponDirection _weapon;
+                private _weaponLat = vectorNormalized (_weaponDir vectorCrossProduct _bodyUp);
+                private _weaponUp = _weaponLat vectorCrossProduct _weaponDir;
+
+                private _origin = _unit modelToWorldVisualWorld (_unit selectionPosition "proxy:\a3\characters_f\proxies\weapon.001");
+
+                private _position = _origin vectorAdd
+                    (_weaponDir vectorMultiply _cartridgeEjectPosition#0) vectorAdd
+                    (_weaponLat vectorMultiply _cartridgeEjectPosition#1) vectorAdd
+                    (_weaponUp  vectorMultiply _cartridgeEjectPosition#2);
+
+                private _cartridge = _cartridgeType createVehicleLocal ASLToAGL _position;
+
+                _cartridge setVectorDirAndUp [
+                    vectorNormalized _weaponDir,
+                    vectorNormalized _weaponUp
+                ];
+
+                private _velocity = velocity _unit vectorAdd
+                    (_weaponDir vectorMultiply _cartridgeEjectVelocity#0) vectorAdd
+                    (_weaponLat vectorMultiply _cartridgeEjectVelocity#1) vectorAdd
+                    (_weaponUp  vectorMultiply _cartridgeEjectVelocity#2);
+
+                [{
+                    params ["_cartridge", "_velocity"];
+                    _cartridge setVelocity _velocity;
+                }, [_cartridge, _velocity]] call CBA_fnc_execNextFrame;
+            }, [
+                _unit, _weapon, _cartridgeType, _cartridgeEjectPosition, _cartridgeEjectVelocity
+            ], _cartridgeEjectDelay] call CBA_fnc_waitAndExecute;
+        };
+
         true // exit loop
     }, {}, [
         _unit, _weapon, _muzzle, _optic,
         _handAction, _sound, call _fnc_soundSource,
         _expectedMagazineCount, CBA_missionTime, _delay,
-        _triggerReleased
+        _triggerReleased, _config
     ]] call CBA_fnc_waitUntilAndExecute;
 };