General: Make use of emplace_back where applicable

Allows for in-place construction. Also results in less code to read in
certain usages.

Runtime/CMemoryCardSys.cpp

@@ -30,12 +30,12 @@ bool CSaveWorldIntermediate::InitializePump() {
 
     x4_strgId = wld.IGetStringTableAssetId();
     x8_savwId = wld.IGetSaveWorldAssetId();
-    u32 areaCount = wld.IGetAreaCount();
+    const u32 areaCount = wld.IGetAreaCount();
 
     xc_areaIds.reserve(areaCount);
     for (u32 i = 0; i < areaCount; ++i) {
       const IGameArea* area = wld.IGetAreaAlways(i);
-      xc_areaIds.push_back(area->IGetAreaId());
+      xc_areaIds.emplace_back(area->IGetAreaId());
     }
 
     CAssetId mlvlId = wld.IGetWorldAssetId();

Runtime/CSaveWorld.cpp

@@ -14,13 +14,13 @@ CSaveWorld::CSaveWorld(CInputStream& in) {
     const u32 cinematicCount = in.readUint32Big();
     x4_cinematics.reserve(cinematicCount);
     for (u32 i = 0; i < cinematicCount; ++i) {
-      x4_cinematics.push_back(in.readUint32Big());
+      x4_cinematics.emplace_back(in.readUint32Big());
     }
 
     const u32 relayCount = in.readUint32Big();
     x14_relays.reserve(relayCount);
     for (u32 i = 0; i < relayCount; ++i) {
-      x14_relays.push_back(in.readUint32Big());
+      x14_relays.emplace_back(in.readUint32Big());
     }
   }
 
@@ -35,7 +35,7 @@ CSaveWorld::CSaveWorld(CInputStream& in) {
   const u32 doorCount = in.readUint32Big();
   x34_doors.reserve(doorCount);
   for (u32 i = 0; i < doorCount; ++i) {
-    x34_doors.push_back(in.readUint32Big());
+    x34_doors.emplace_back(in.readUint32Big());
   }
 
   if (version <= 0) {

Runtime/GuiSys/CHudDecoInterface.cpp

@@ -475,7 +475,7 @@ CHudDecoInterfaceThermal::CHudDecoInterfaceThermal(CGuiFrame& selHud) {
   if (CGuiWidget* w = selHud.FindWidget("basewidget_lock")) {
     for (CGuiWidget* c = static_cast<CGuiWidget*>(w->GetChildObject()); c;
          c = static_cast<CGuiWidget*>(c->GetNextSibling())) {
-      x84_lockonWidgets.push_back({c, c->GetLocalTransform()});
+      x84_lockonWidgets.emplace_back(c, c->GetLocalTransform());
       c->SetLocalTransform(c->GetLocalTransform() * zeus::CTransform::Scale(x68_lockonScale));
     }
   }

Runtime/GuiSys/CRasterFont.cpp

@@ -64,8 +64,8 @@ CRasterFont::CRasterFont(urde::CInputStream& in, urde::IObjectStore& store) {
       baseline = in.readByte();
       kernStart = in.readInt16Big();
     }
-    xc_glyphs.push_back(std::make_pair(
-        chr, CGlyph(a, b, c, startU, startV, endU, endV, cellWidth, cellHeight, baseline, kernStart, layer)));
+    xc_glyphs.emplace_back(
+        chr, CGlyph(a, b, c, startU, startV, endU, endV, cellWidth, cellHeight, baseline, kernStart, layer));
   }
 
   std::sort(xc_glyphs.begin(), xc_glyphs.end(), [=](auto& a, auto& b) -> bool { return a.first < b.first; });

Runtime/GuiSys/CTextParser.cpp

@@ -188,7 +188,7 @@ CFontImageDef CTextParser::GetImage(const char16_t* str, int len,
       texs.reserve(commaCount - 1);
       do {
         AdvanceCommaPos();
-        texs.push_back(x0_store.GetObj({SBIG('TXTR'), GetAssetIdFromString(&iterable[tokenPos], len, txtrMap)}));
+        texs.emplace_back(x0_store.GetObj({SBIG('TXTR'), GetAssetIdFromString(&iterable[tokenPos], len, txtrMap)}));
         AdvanceTokenPos();
       } while (commaPos != iterable.size());
 
@@ -211,7 +211,7 @@ CFontImageDef CTextParser::GetImage(const char16_t* str, int len,
       texs.reserve(commaCount - 3);
       do {
         AdvanceCommaPos();
-        texs.push_back(x0_store.GetObj({SBIG('TXTR'), GetAssetIdFromString(&iterable[tokenPos], len, txtrMap)}));
+        texs.emplace_back(x0_store.GetObj({SBIG('TXTR'), GetAssetIdFromString(&iterable[tokenPos], len, txtrMap)}));
         AdvanceTokenPos();
       } while (commaPos != iterable.size());
 

Runtime/GuiSys/CTextRenderBuffer.cpp

@@ -174,7 +174,7 @@ void CTextRenderBuffer::AddImage(const zeus::CVector2i& offset, const CFontImage
   if (x0_mode == EMode::AllocTally)
     m_primitiveMarks.push_back({Command::ImageRender, m_imagesCount++, 0});
   else
-    m_images.push_back({image, offset});
+    m_images.emplace_back(image, offset);
 }
 
 void CTextRenderBuffer::AddCharacter(const zeus::CVector2i& offset, char16_t ch, const zeus::CColor& color) {
@@ -209,7 +209,7 @@ void CTextRenderBuffer::AddFontChange(const TToken<CRasterFont>& font) {
   }
 
   m_activeFontCh = m_fontCharacters.size();
-  m_fontCharacters.push_back({font});
+  m_fontCharacters.emplace_back(font);
 }
 
 bool CTextRenderBuffer::HasSpaceAvailable(const zeus::CVector2i& origin, const zeus::CVector2i& extent) const {

Runtime/Particle/CColorElement.cpp

@@ -19,10 +19,11 @@ CCEKeyframeEmitter::CCEKeyframeEmitter(CInputStream& in) {
   x10_loopEnd = in.readUint32Big();
   x14_loopStart = in.readUint32Big();
 
-  u32 count = in.readUint32Big();
+  const u32 count = in.readUint32Big();
   x18_keys.reserve(count);
-  for (u32 i = 0; i < count; ++i)
-    x18_keys.push_back(in.readVec4fBig());
+  for (u32 i = 0; i < count; ++i) {
+    x18_keys.emplace_back(in.readVec4fBig());
+  }
 }
 
 bool CCEKeyframeEmitter::GetValue(int frame, zeus::CColor& valOut) const {

Runtime/Particle/CParticleElectric.cpp

@@ -333,7 +333,7 @@ void CParticleElectric::CreateNewParticles(int count) {
         if (CIntElement* slif = x1c_elecDesc->x4_SLIF.get())
           slif->GetValue(x28_currentFrame, lifetime);
 
-        x3e8_electricManagers.push_back(CParticleElectricManager(allocIdx, lifetime, x28_currentFrame));
+        x3e8_electricManagers.emplace_back(allocIdx, lifetime, x28_currentFrame);
         CParticleElectricManager& elec = x3e8_electricManagers.back();
         CParticleGlobals::instance()->SetParticleLifetime(elec.xc_endFrame - elec.x8_startFrame);
         int frame = x28_currentFrame - elec.x8_startFrame;

Runtime/Particle/CVectorElement.cpp

@@ -19,10 +19,11 @@ CVEKeyframeEmitter::CVEKeyframeEmitter(CInputStream& in) {
   x10_loopEnd = in.readUint32Big();
   x14_loopStart = in.readUint32Big();
 
-  u32 count = in.readUint32Big();
+  const u32 count = in.readUint32Big();
   x18_keys.reserve(count);
-  for (u32 i = 0; i < count; ++i)
-    x18_keys.push_back(in.readVec3fBig());
+  for (u32 i = 0; i < count; ++i) {
+    x18_keys.emplace_back(in.readVec3fBig());
+  }
 }
 
 bool CVEKeyframeEmitter::GetValue(int frame, zeus::CVector3f& valOut) const {

Runtime/World/CGameArea.cpp

@@ -353,28 +353,31 @@ CGameArea::CGameArea(CInputStream& in, int idx, int mlvlVersion) : x4_selfIdx(id
   else
     x88_areaId = -1;
 
-  u32 attachedCount = in.readUint32Big();
+  const u32 attachedCount = in.readUint32Big();
   x8c_attachedAreaIndices.reserve(attachedCount);
-  for (u32 i = 0; i < attachedCount; ++i)
-    x8c_attachedAreaIndices.push_back(in.readUint16Big());
+  for (u32 i = 0; i < attachedCount; ++i) {
+    x8c_attachedAreaIndices.emplace_back(in.readUint16Big());
+  }
 
   x9c_deps1 = ::urde::ReadDependencyList(in);
   xac_deps2 = ::urde::ReadDependencyList(in);
 
-  zeus::CAABox aabb = x6c_aabb.getTransformedAABox(xc_transform);
+  const zeus::CAABox aabb = x6c_aabb.getTransformedAABox(xc_transform);
   x6c_aabb = aabb;
 
   if (mlvlVersion > 13) {
-    u32 depCount = in.readUint32Big();
+    const u32 depCount = in.readUint32Big();
     xbc_layerDepOffsets.reserve(depCount);
-    for (u32 i = 0; i < depCount; ++i)
-      xbc_layerDepOffsets.push_back(in.readUint32Big());
+    for (u32 i = 0; i < depCount; ++i) {
+      xbc_layerDepOffsets.emplace_back(in.readUint32Big());
+    }
   }
 
-  u32 dockCount = in.readUint32Big();
+  const u32 dockCount = in.readUint32Big();
   xcc_docks.reserve(dockCount);
-  for (u32 i = 0; i < dockCount; ++i)
-    xcc_docks.push_back({in, xc_transform});
+  for (u32 i = 0; i < dockCount; ++i) {
+    xcc_docks.emplace_back(in, xc_transform);
+  }
 
   ClearTokenList();
 

Runtime/World/CScriptPickupGenerator.cpp

@@ -89,10 +89,10 @@ float CScriptPickupGenerator::GetPickupTemplates(CStateManager& mgr,
             doAlways = true;
             break;
           }
-          bool thirtyPercTest = mgr.GetActiveRandom()->Float() < 0.3f;
+          const bool thirtyPercTest = mgr.GetActiveRandom()->Float() < 0.3f;
           if ((doAlways || (doThirtyPerc && thirtyPercTest)) && possibility > 0.f) {
             totalPossibility += possibility * multiplier;
-            idsOut.push_back(std::make_pair(possibility, conn.x8_objId));
+            idsOut.emplace_back(possibility, conn.x8_objId);
           }
         }
       }

Runtime/World/CScriptSpecialFunction.cpp

@@ -254,7 +254,7 @@ void CScriptSpecialFunction::AcceptScriptMsg(EScriptObjectMessage msg, TUniqueId
             auto search = mgr.GetIdListForScript(conn.x8_objId);
             for (auto it = search.first; it != search.second; ++it) {
               if (TCastToPtr<CActor> act = mgr.ObjectById(it->second)) {
-                x198_ringControllers.push_back(SRingController(it->second, 0.f, false));
+                x198_ringControllers.emplace_back(it->second, 0.f, false);
                 act->RemoveMaterial(EMaterialTypes::Occluder, mgr);
               }
             }

Runtime/World/CScriptTrigger.cpp

@@ -242,7 +242,7 @@ void CScriptTrigger::Touch(CActor& act, CStateManager& mgr) {
     }
 
     if (True(testFlags & x12c_flags)) {
-      xe8_inhabitants.push_back(act.GetUniqueId());
+      xe8_inhabitants.emplace_back(act.GetUniqueId());
       InhabitantAdded(act, mgr);
 
       if (pl) {