Improve weapon weight calculation code.

Get rid of code duplication

Author: gunslingermod

src/xrGame/Weapon.cpp

@@ -1730,6 +1730,24 @@ bool CWeapon::unlimited_ammo()
     return ((GameID() == eGameIDDeathmatch) && m_DefaultCartridge.m_flags.test(CCartridge::cfCanBeUnlimited));
 };
 
+float CWeapon::GetMagazineWeight(const decltype(CWeapon::m_magazine)& mag) const
+{
+    float res = 0;
+    const char* last_type = nullptr;
+    float last_ammo_weight = 0;
+    for (auto& c : mag)
+    {
+        // Usually ammos in mag have same type, use this fact to improve performance
+        if (last_type != c.m_ammoSect.c_str())
+        {
+            last_type = c.m_ammoSect.c_str();
+            last_ammo_weight = c.Weight();
+        }
+        res += last_ammo_weight;
+    }
+    return res;
+}
+
 float CWeapon::Weight() const
 {
     float res = CInventoryItemObject::Weight();
@@ -1745,20 +1763,7 @@ float CWeapon::Weight() const
     {
         res += pSettings->r_float(GetSilencerName(), "inv_weight");
     }
-
-    const char* last_type = nullptr;
-    float w = 0, bs = 0;
-    for (auto& c : m_magazine)
-    {
-        // Usually ammos in mag have same type, use it to improve performance
-        if (last_type != c.m_ammoSect.c_str())
-        {
-            last_type = c.m_ammoSect.c_str();
-            w = pSettings->r_float(last_type, "inv_weight");
-            bs = pSettings->r_float(last_type, "box_size");
-        }
-        res += w / bs;
-    }
+    res += GetMagazineWeight(m_magazine);
 
     return res;
 }

src/xrGame/Weapon.h

@@ -465,6 +465,9 @@ class CWeapon : public CHudItemObject, public CShootingObject
 
     bool unlimited_ammo();
     IC bool can_be_strapped() const { return m_can_be_strapped; };
+
+    float GetMagazineWeight(const decltype(m_magazine)& mag) const;
+
 protected:
     u32 m_ef_main_weapon_type;
     u32 m_ef_weapon_type;

src/xrGame/WeaponAmmo.cpp

@@ -70,6 +70,22 @@ void CCartridge::Load(LPCSTR section, u8 LocalAmmoType)
     m_InvShortName = CStringTable().translate(pSettings->r_string(section, "inv_name_short"));
 }
 
+float CCartridge::Weight() const
+{
+    auto s = m_ammoSect.c_str();
+    float res = 0;
+    if (s)
+    {
+        float box = pSettings->r_float(s, "box_size");
+        if (box > 0)
+        {
+            float w = pSettings->r_float(s, "inv_weight");
+            res = w / box;
+        }
+    }
+    return res;
+}
+
 CWeaponAmmo::CWeaponAmmo(void) {}
 CWeaponAmmo::~CWeaponAmmo(void) {}
 void CWeaponAmmo::Load(LPCSTR section)
@@ -215,11 +231,13 @@ CInventoryItem* CWeaponAmmo::can_make_killing(const CInventory* inventory) const
 
 float CWeaponAmmo::Weight() const
 {
-    float res = inherited::Weight();
-
-    res *= (float)m_boxCurr / (float)m_boxSize;
-
-    return res;
+    if (m_boxSize > 0)
+    {
+        float res = inherited::Weight();
+        res *= (float)m_boxCurr / (float)m_boxSize;
+        return res;
+    }
+    return 0.f;
 }
 
 u32 CWeaponAmmo::Cost() const

src/xrGame/WeaponAmmo.h

@@ -28,6 +28,7 @@ class CCartridge : public IAnticheatDumpable
 public:
     CCartridge();
     void Load(LPCSTR section, u8 LocalAmmoType);
+    float Weight() const;
 
     shared_str m_ammoSect;
     enum

src/xrGame/WeaponMagazinedWGrenade.cpp

@@ -748,20 +748,8 @@ void CWeaponMagazinedWGrenade::net_Import(NET_Packet& P)
 float CWeaponMagazinedWGrenade::Weight() const
 {
     float res = inherited::Weight();
+    res += GetMagazineWeight(m_magazine2);
 
-    const char* last_type = nullptr;
-    float w = 0, bs = 0;
-    for (auto& c : m_magazine2)
-    {
-        // Usually ammos in mag have same type, use it to improve performance
-        if (last_type != c.m_ammoSect.c_str())
-        {
-            last_type = c.m_ammoSect.c_str();
-            w = pSettings->r_float(last_type, "inv_weight");
-            bs = pSettings->r_float(last_type, "box_size");
-        }
-        res += w / bs;
-    }
     return res;
 }