diff --git a/CMakeLists.txt b/CMakeLists.txt
index 80e22e733..8801db335 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -245,7 +245,7 @@ if( MSVC )
 	set( DEB_C_FLAGS "/D _CRTDBG_MAP_ALLOC /MTd" )
 
 	# Disable warnings for unsecure CRT functions from VC8+
-	set( ALL_C_FLAGS "${ALL_C_FLAGS} /wd4996 /DUNICODE /D_UNICODE /D_WIN32_WINNT=0x0600" )
+	set( ALL_C_FLAGS "${ALL_C_FLAGS} /DUNICODE /D_UNICODE /D_WIN32_WINNT=0x0600 /D_CRT_SECURE_NO_DEPRECATE /D_CRT_SECURE_NO_WARNINGS /D_CRT_NONSTDC_NO_WARNINGS" )
 
 	# The CMake configurations set /GR and /MD by default, which conflict with our settings.
 	string(REPLACE "/MD " " " CMAKE_CXX_FLAGS_RELEASE ${CMAKE_CXX_FLAGS_RELEASE} )
diff --git a/src/common/2d/v_2ddrawer.h b/src/common/2d/v_2ddrawer.h
index f662de7ac..ab87085f5 100644
--- a/src/common/2d/v_2ddrawer.h
+++ b/src/common/2d/v_2ddrawer.h
@@ -132,7 +132,7 @@ public:
 
 		RenderCommand()
 		{
-			memset(this, 0, sizeof(*this));
+			memset((void*)this, 0,  sizeof(*this));
 		}
 
 		// If these fields match, two draw commands can be batched.
diff --git a/src/common/console/c_bind.cpp b/src/common/console/c_bind.cpp
index a83951cca..1bca5072c 100644
--- a/src/common/console/c_bind.cpp
+++ b/src/common/console/c_bind.cpp
@@ -686,6 +686,17 @@ void ReadBindings(int lump, bool override)
 		FKeyBindings* dest = &Bindings;
 		int key;
 
+		if (sc.Compare("unbind"))
+		{
+			sc.MustGetString();
+			if (override)
+			{
+				// This is only for games to clear unsuitable base defaults, not for mods.
+				dest->UnbindKey(sc.String);
+			}
+			continue;
+		}
+		
 		// bind destination is optional and is the same as the console command
 		if (sc.Compare("bind"))
 		{
@@ -722,7 +733,18 @@ void ReadBindings(int lump, bool override)
 void C_SetDefaultKeys(const char* baseconfig)
 {
 	auto lump = fileSystem.CheckNumForFullName("engine/commonbinds.txt");
-	if (lump >= 0) ReadBindings(lump, true);
+	if (lump >= 0)
+	{
+		// Bail out if a mod tries to override this. Main game resources are allowed to do this, though.
+		auto fileno2 = fileSystem.GetFileContainer(lump);
+		if (fileno2 > fileSystem.GetMaxIwadNum())
+		{
+			I_FatalError("File %s is overriding core lump %s.",
+				fileSystem.GetResourceFileFullName(fileno2), "engine/commonbinds.txt");
+		}
+
+		ReadBindings(lump, true);
+	}
 	int lastlump = 0;
 
 	while ((lump = fileSystem.FindLumpFullName(baseconfig, &lastlump)) != -1)
diff --git a/src/common/filesystem/file_grp.cpp b/src/common/filesystem/file_grp.cpp
index 1bf3bd7a4..97f17f17f 100644
--- a/src/common/filesystem/file_grp.cpp
+++ b/src/common/filesystem/file_grp.cpp
@@ -42,7 +42,7 @@
 //
 //==========================================================================
 
-struct GrpInfo
+struct GrpHeader
 {
 	uint32_t		Magic[3];
 	uint32_t		NumLumps;
@@ -95,7 +95,7 @@ FGrpFile::FGrpFile(const char *filename, FileReader &file)
 
 bool FGrpFile::Open(bool quiet, LumpFilterInfo*)
 {
-	GrpInfo header;
+	GrpHeader header;
 
 	Reader.Read(&header, sizeof(header));
 	NumLumps = LittleLong(header.NumLumps);
@@ -105,7 +105,7 @@ bool FGrpFile::Open(bool quiet, LumpFilterInfo*)
 
 	Lumps.Resize(NumLumps);
 
-	int Position = sizeof(GrpInfo) + NumLumps * sizeof(GrpLump);
+	int Position = sizeof(GrpHeader) + NumLumps * sizeof(GrpLump);
 
 	for(uint32_t i = 0; i < NumLumps; i++)
 	{
diff --git a/src/common/platform/win32/hardware.cpp b/src/common/platform/win32/hardware.cpp
index 3cadc1ced..13e799594 100644
--- a/src/common/platform/win32/hardware.cpp
+++ b/src/common/platform/win32/hardware.cpp
@@ -111,9 +111,9 @@ void I_InitGraphics ()
 	// todo: implement ATI version of this. this only works for nvidia notebooks, for now.
 	currentgpuswitch = vid_gpuswitch;
 	if (currentgpuswitch == 1)
-		putenv("SHIM_MCCOMPAT=0x800000001"); // discrete
+		_putenv("SHIM_MCCOMPAT=0x800000001"); // discrete
 	else if (currentgpuswitch == 2)
-		putenv("SHIM_MCCOMPAT=0x800000000"); // integrated
+		_putenv("SHIM_MCCOMPAT=0x800000000"); // integrated
 
 	// If the focus window is destroyed, it doesn't go back to the active window.
 	// (e.g. because the net pane was up, and a button on it had focus)
diff --git a/src/common/platform/win32/i_crash.cpp b/src/common/platform/win32/i_crash.cpp
index 90c0658f1..df2a6241e 100644
--- a/src/common/platform/win32/i_crash.cpp
+++ b/src/common/platform/win32/i_crash.cpp
@@ -34,6 +34,7 @@
 
 // HEADER FILES ------------------------------------------------------------
 
+#pragma warning(disable:4996)
 #define WIN32_LEAN_AND_MEAN
 #include <windows.h>
 #include <richedit.h>
diff --git a/src/common/platform/win32/i_system.cpp b/src/common/platform/win32/i_system.cpp
index 1de30932d..0ec546567 100644
--- a/src/common/platform/win32/i_system.cpp
+++ b/src/common/platform/win32/i_system.cpp
@@ -45,6 +45,7 @@
 
 // HEADER FILES ------------------------------------------------------------
 
+#pragma warning(disable:4996)
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
diff --git a/src/common/platform/win32/zutil.natvis b/src/common/platform/win32/zutil.natvis
index 156594329..9a257a7cf 100644
--- a/src/common/platform/win32/zutil.natvis
+++ b/src/common/platform/win32/zutil.natvis
@@ -25,6 +25,17 @@
     </Expand>
 </Type>
 
+<Type Name="TSparseArrayView&lt;*&gt;">
+	<DisplayString>Size = {Count}</DisplayString>
+	<Expand>
+		<Item Name="Size">Count</Item>
+		<ArrayItems>
+			<Size>Count</Size>
+			<ValuePointer>(value_type*)Array</ValuePointer>
+		</ArrayItems>
+	</Expand>
+</Type>
+
 <Type Name="TStaticPointedArray&lt;*&gt;">
     <DisplayString>Size = {Count}</DisplayString>
     <Expand>
diff --git a/src/common/rendering/hwrenderer/data/hw_skydome.h b/src/common/rendering/hwrenderer/data/hw_skydome.h
index 2e10869bb..71ad85a08 100644
--- a/src/common/rendering/hwrenderer/data/hw_skydome.h
+++ b/src/common/rendering/hwrenderer/data/hw_skydome.h
@@ -12,10 +12,7 @@ struct HWSkyPortal;
 struct HWDrawInfo;
 
 // 57 world units roughly represent one sky texel for the glTranslate call.
-enum
-{
-	skyoffsetfactor = 57
-};
+const int skyoffsetfactor = 57;
 
 struct FSkyVertex
 {
diff --git a/src/common/rendering/polyrenderer/drawers/screen_shader.cpp b/src/common/rendering/polyrenderer/drawers/screen_shader.cpp
index 00ba5d743..7403a9336 100644
--- a/src/common/rendering/polyrenderer/drawers/screen_shader.cpp
+++ b/src/common/rendering/polyrenderer/drawers/screen_shader.cpp
@@ -21,7 +21,6 @@
 */
 
 #include <stddef.h>
-
 #include "poly_thread.h"
 #include "screen_scanline_setup.h"
 #include <cmath>
diff --git a/src/common/rendering/polyrenderer/drawers/screen_triangle.cpp b/src/common/rendering/polyrenderer/drawers/screen_triangle.cpp
index 9cfa4b5c2..f30bc8bd2 100644
--- a/src/common/rendering/polyrenderer/drawers/screen_triangle.cpp
+++ b/src/common/rendering/polyrenderer/drawers/screen_triangle.cpp
@@ -22,7 +22,6 @@
 
 #include <stddef.h>
 
-
 #include "filesystem.h"
 #include "v_video.h"
 #include "poly_triangle.h"
diff --git a/src/common/rendering/vulkan/renderer/vk_postprocess.cpp b/src/common/rendering/vulkan/renderer/vk_postprocess.cpp
index 9d1702834..dd8a22e95 100644
--- a/src/common/rendering/vulkan/renderer/vk_postprocess.cpp
+++ b/src/common/rendering/vulkan/renderer/vk_postprocess.cpp
@@ -36,7 +36,7 @@
 #include "flatvertices.h"
 #include "r_videoscale.h"
 #include "filesystem.h"
-#include "templates.h"
+
 
 EXTERN_CVAR(Int, gl_dither_bpc)
 
diff --git a/src/common/rendering/vulkan/renderer/vk_renderbuffers.cpp b/src/common/rendering/vulkan/renderer/vk_renderbuffers.cpp
index 34e44096d..466acd5f4 100644
--- a/src/common/rendering/vulkan/renderer/vk_renderbuffers.cpp
+++ b/src/common/rendering/vulkan/renderer/vk_renderbuffers.cpp
@@ -27,7 +27,7 @@
 #include "vulkan/system/vk_builders.h"
 #include "vulkan/system/vk_framebuffer.h"
 #include "hw_cvars.h"
-#include "templates.h"
+
 
 VkRenderBuffers::VkRenderBuffers()
 {
diff --git a/src/common/rendering/vulkan/renderer/vk_renderstate.cpp b/src/common/rendering/vulkan/renderer/vk_renderstate.cpp
index c5ff77831..95560a870 100644
--- a/src/common/rendering/vulkan/renderer/vk_renderstate.cpp
+++ b/src/common/rendering/vulkan/renderer/vk_renderstate.cpp
@@ -26,7 +26,7 @@
 #include "vulkan/renderer/vk_renderpass.h"
 #include "vulkan/renderer/vk_renderbuffers.h"
 #include "vulkan/textures/vk_hwtexture.h"
-#include "templates.h"
+
 #include "hw_skydome.h"
 #include "hw_viewpointuniforms.h"
 #include "hw_lightbuffer.h"
diff --git a/src/common/rendering/vulkan/system/vk_framebuffer.cpp b/src/common/rendering/vulkan/system/vk_framebuffer.cpp
index 160876da4..e189f4b24 100644
--- a/src/common/rendering/vulkan/system/vk_framebuffer.cpp
+++ b/src/common/rendering/vulkan/system/vk_framebuffer.cpp
@@ -26,7 +26,7 @@
 
 #include "v_video.h"
 #include "m_png.h"
-#include "templates.h"
+
 #include "r_videoscale.h"
 #include "i_time.h"
 #include "v_text.h"
diff --git a/src/common/rendering/vulkan/textures/vk_hwtexture.cpp b/src/common/rendering/vulkan/textures/vk_hwtexture.cpp
index c62a7173e..b3ad6e66b 100644
--- a/src/common/rendering/vulkan/textures/vk_hwtexture.cpp
+++ b/src/common/rendering/vulkan/textures/vk_hwtexture.cpp
@@ -20,7 +20,7 @@
 **
 */
 
-#include "templates.h"
+
 #include "c_cvars.h"
 #include "hw_material.h"
 #include "hw_cvars.h"
diff --git a/src/common/textures/multipatchtexturebuilder.cpp b/src/common/textures/multipatchtexturebuilder.cpp
index 000af17e2..6a49d87ae 100644
--- a/src/common/textures/multipatchtexturebuilder.cpp
+++ b/src/common/textures/multipatchtexturebuilder.cpp
@@ -572,7 +572,7 @@ void FMultipatchTextureBuilder::ParsePatch(FScanner &sc, BuildInfo &info, TexPar
 			else if (sc.Compare("alpha"))
 			{
 				sc.MustGetFloat();
-				part.Alpha = clamp<blend_t>(int(sc.Float * BLENDUNIT), 0, BLENDUNIT);
+				part.Alpha = clamp<blend_t>(int(sc.Float * +BLENDUNIT), 0, BLENDUNIT);
 				// bComplex is not set because it is only needed when the style is not OP_COPY.
 			}
 			else if (sc.Compare("style"))
diff --git a/src/common/thirdparty/rapidjson/document.h b/src/common/thirdparty/rapidjson/document.h
index 19f5a6a5f..7612801b5 100644
--- a/src/common/thirdparty/rapidjson/document.h
+++ b/src/common/thirdparty/rapidjson/document.h
@@ -29,6 +29,7 @@ RAPIDJSON_DIAG_PUSH
 #ifdef _MSC_VER
 RAPIDJSON_DIAG_OFF(4127) // conditional expression is constant
 RAPIDJSON_DIAG_OFF(4244) // conversion from kXxxFlags to 'uint16_t', possible loss of data
+RAPIDJSON_DIAG_OFF(4996) // deprecation of std::iterator
 #endif
 
 #ifdef __clang__
diff --git a/src/common/utility/cmdlib.cpp b/src/common/utility/cmdlib.cpp
index 5e43336e2..b4fb3a479 100644
--- a/src/common/utility/cmdlib.cpp
+++ b/src/common/utility/cmdlib.cpp
@@ -248,7 +248,7 @@ bool GetFileInfo(const char* pathname, size_t *size, time_t *time)
 	bool res = _wstat64(wstr.c_str(), &info) == 0;
 #endif
 	if (!res || (info.st_mode & S_IFDIR)) return false;
-	if (size) *size = (size_t)info.st_size;
+	if (size) *size = info.st_size;
 	if (time) *time = info.st_mtime;
 	return res;
 }
diff --git a/src/common/utility/tarray.h b/src/common/utility/tarray.h
index 4a9e7388b..10a164959 100644
--- a/src/common/utility/tarray.h
+++ b/src/common/utility/tarray.h
@@ -63,14 +63,14 @@
 
 #include "m_alloc.h"
 
-template<typename T> class TIterator : public std::iterator<std::random_access_iterator_tag, T>
+template<typename T> class TIterator
 {
 public:
-	typedef typename TIterator::value_type value_type;
-	typedef typename TIterator::difference_type difference_type;
-	typedef typename TIterator::pointer pointer;
-	typedef typename TIterator::reference reference;
-	typedef typename TIterator::iterator_category iterator_category;
+    using iterator_category = std::random_access_iterator_tag;
+    using value_type        = T;
+    using difference_type   = ptrdiff_t;
+    using pointer           = value_type*;
+    using reference         = value_type&;
 
 	TIterator(T* ptr = nullptr) { m_ptr = ptr; }
 
@@ -125,6 +125,8 @@ public:
 
     typedef TIterator<T>                       iterator;
     typedef TIterator<const T>                 const_iterator;
+    using reverse_iterator       =             std::reverse_iterator<iterator>;
+    using const_reverse_iterator =             std::reverse_iterator<const_iterator>;
 	typedef T							value_type;
 
     iterator begin()
@@ -153,7 +155,32 @@ public:
 		return &Array[Count];
 	}
 	
-	
+	reverse_iterator rbegin()
+	{
+		return reverse_iterator(end());
+	}
+	const_reverse_iterator rbegin() const
+	{
+		return const_reverse_iterator(end());
+	}
+	const_reverse_iterator crbegin() const
+	{
+		return const_reverse_iterator(cend());
+	}
+
+	reverse_iterator rend()
+	{
+		return reverse_iterator(begin());
+	}
+	const_reverse_iterator rend() const
+	{
+		return const_reverse_iterator(begin());
+	}
+	const_reverse_iterator crend() const
+	{
+		return const_reverse_iterator(cbegin());
+	}
+
 
 	////////
 	// This is a dummy constructor that does nothing. The purpose of this
@@ -636,6 +663,8 @@ public:
 
 	typedef TIterator<T>                       iterator;
 	typedef TIterator<const T>                 const_iterator;
+    using reverse_iterator       =             std::reverse_iterator<iterator>;
+    using const_reverse_iterator =             std::reverse_iterator<const_iterator>;
 	typedef T                                  value_type;
 
 	iterator begin()
@@ -664,6 +693,32 @@ public:
 		return &Array[Count];
 	}
 
+	reverse_iterator rbegin()
+	{
+		return reverse_iterator(end());
+	}
+	const_reverse_iterator rbegin() const
+	{
+		return const_reverse_iterator(end());
+	}
+	const_reverse_iterator crbegin() const
+	{
+		return const_reverse_iterator(cend());
+	}
+
+	reverse_iterator rend()
+	{
+		return reverse_iterator(begin());
+	}
+	const_reverse_iterator rend() const
+	{
+		return const_reverse_iterator(begin());
+	}
+	const_reverse_iterator crend() const
+	{
+		return const_reverse_iterator(cbegin());
+	}
+
 	void Init(T *ptr, unsigned cnt)
 	{
 		Array = ptr;
@@ -1579,7 +1634,7 @@ public:
 	}
 
 	BitArray(unsigned elem)
-		: bytes((elem + 7) / 8, true)
+		: bytes((elem + 7) / 8, true), size(elem)
 	{
 
 	}
@@ -1637,6 +1692,11 @@ public:
 	{
 		memset(&bytes[0], 0, bytes.Size());
 	}
+
+	TArray<uint8_t> &Storage()
+	{
+		return bytes;
+	}
 };
 
 
@@ -1704,6 +1764,8 @@ public:
 
 	typedef TIterator<T>                       iterator;
 	typedef TIterator<const T>                 const_iterator;
+    using reverse_iterator       =             std::reverse_iterator<iterator>;
+    using const_reverse_iterator =             std::reverse_iterator<const_iterator>;
 	typedef T                                  value_type;
 
 	iterator begin()
@@ -1732,6 +1794,32 @@ public:
 		return &Array[Count];
 	}
 
+	reverse_iterator rbegin()
+	{
+		return reverse_iterator(end());
+	}
+	const_reverse_iterator rbegin() const
+	{
+		return const_reverse_iterator(end());
+	}
+	const_reverse_iterator crbegin() const
+	{
+		return const_reverse_iterator(cend());
+	}
+
+	reverse_iterator rend()
+	{
+		return reverse_iterator(begin());
+	}
+	const_reverse_iterator rend() const
+	{
+		return const_reverse_iterator(begin());
+	}
+	const_reverse_iterator crend() const
+	{
+		return const_reverse_iterator(cbegin());
+	}
+
 
 	////////
 	TArrayView() = default;	// intended to keep this type trivial.
@@ -1807,3 +1895,203 @@ private:
 	T *Array;
 	unsigned int Count;
 };
+
+
+template<typename T> class TSparseIterator
+{
+public:
+	using iterator_category = std::random_access_iterator_tag;
+	using value_type        = T;
+	using difference_type   = ptrdiff_t;
+	using pointer           = value_type*;
+	using reference         = value_type&;
+
+	TSparseIterator(unsigned char* ptr = nullptr, unsigned stride = 0) { m_Ptr = ptr; Stride = stride; }
+
+	// Comparison operators
+	bool operator==(const TSparseIterator &other) const { return m_Ptr == other.m_Ptr; }
+	bool operator!=(const TSparseIterator &other) const { return m_Ptr != other.m_Ptr; }
+	bool operator< (const TSparseIterator &other) const { return m_Ptr <  other.m_Ptr; }
+	bool operator<=(const TSparseIterator &other) const { return m_Ptr <= other.m_Ptr; }
+	bool operator> (const TSparseIterator &other) const { return m_Ptr >  other.m_Ptr; }
+	bool operator>=(const TSparseIterator &other) const { return m_Ptr >= other.m_Ptr; }
+
+	// Arithmetic operators
+	TSparseIterator &operator++() { m_Ptr += Stride; return *this; }
+	TSparseIterator operator++(int) { auto tmp = *this; ++*this; return tmp; }
+	TSparseIterator &operator--() { m_Ptr -= Stride; return *this; }
+	TSparseIterator operator--(int) { auto tmp = *this; --*this; return tmp; }
+	TSparseIterator &operator+=(difference_type offset) { m_Ptr += offset * Stride; return *this; }
+	TSparseIterator operator+(difference_type offset) const { return TSparseIterator(m_Ptr + offset * Stride, Stride); }
+	friend TSparseIterator operator+(difference_type offset, const TSparseIterator &other) { return TSparseIterator(offset*other.Stride + other.m_Ptr, other.Stride); }
+	TSparseIterator &operator-=(difference_type offset) { m_Ptr -= offset * Stride; return *this; }
+	TSparseIterator operator-(difference_type offset) const { return TSparseIterator(m_Ptr - offset * Stride, Stride); }
+	difference_type operator-(const TSparseIterator &other) const { return (m_Ptr - other.m_Ptr) / Stride; }
+
+	// Random access operators
+	T& operator[](difference_type i) { return *(T*)(m_Ptr + i * Stride); }
+	const T& operator[](difference_type i) const { return *(T*)(m_Ptr + i * Stride); }
+
+	T &operator*() const { return (T*)m_Ptr; }
+	T* operator->() { return (T*)m_Ptr; }
+
+protected:
+	unsigned char* m_Ptr;
+	unsigned Stride;
+};
+
+// A wrapper to externally stored data.
+// Like the above but with a customizable stride
+template <class T>
+class TSparseArrayView
+{
+public:
+
+	typedef TSparseIterator<T>                       iterator;
+	typedef TSparseIterator<const T>                 const_iterator;
+    using reverse_iterator       =             std::reverse_iterator<iterator>;
+    using const_reverse_iterator =             std::reverse_iterator<const_iterator>;
+	typedef T                                  value_type;
+
+	iterator begin()
+	{
+		return iterator(Array, Stride);
+	}
+	const_iterator begin() const
+	{
+		return const_iterator(Array, Stride);
+	}
+	const_iterator cbegin() const
+	{
+		return const_iterator(Array, Stride);
+	}
+
+	iterator end()
+	{
+		return iterator(Array + Count * Stride, Stride);
+	}
+	const_iterator end() const
+	{
+		return const_iterator(Array + Count * Stride, Stride);
+	}
+	const_iterator cend() const
+	{
+		return const_iterator(Array + Count * Stride, Stride);
+	}
+
+	reverse_iterator rbegin()
+	{
+		return reverse_iterator(end());
+	}
+	const_reverse_iterator rbegin() const
+	{
+		return const_reverse_iterator(end());
+	}
+	const_reverse_iterator crbegin() const
+	{
+		return const_reverse_iterator(cend());
+	}
+
+	reverse_iterator rend()
+	{
+		return reverse_iterator(begin());
+	}
+	const_reverse_iterator rend() const
+	{
+		return const_reverse_iterator(begin());
+	}
+	const_reverse_iterator crend() const
+	{
+		return const_reverse_iterator(cbegin());
+	}
+
+	////////
+	TSparseArrayView() = default;	// intended to keep this type trivial.
+	TSparseArrayView(T *data, unsigned stride, unsigned count = 0)
+	{
+		Count = count;
+		Array = data;
+		Stride = stride;
+	}
+	TSparseArrayView(const TSparseArrayView<T> &other) = default;
+	TSparseArrayView<T> &operator= (const TSparseArrayView<T> &other) = default;
+
+	// Check equality of two arrays
+	bool operator==(const TArrayView<T> &other) const
+	{
+		if (Count != other.Count)
+		{
+			return false;
+		}
+		for (unsigned int i = 0; i < Count; ++i)
+		{
+			if (Element(i) != other.Element(i))
+			{
+				return false;
+			}
+		}
+		return true;
+	}
+	
+	T &Element(size_t index)
+	{
+		return (T*)Array[index*Stride];
+	}
+	// Return a reference to an element
+	T &operator[] (size_t index) const
+	{
+		return Element(index);
+	}
+	// Returns a reference to the last element
+	T &Last() const
+	{
+		return Element(Count - 1);
+	}
+
+	// returns address of first element
+	T *Data() const
+	{
+		return &Element(0);
+	}
+
+	unsigned Size() const
+	{
+		return Count;
+	}
+
+	unsigned int Find(const T& item) const
+	{
+		unsigned int i;
+		for (i = 0; i < Count; ++i)
+		{
+			if (Element(i) == item)
+				break;
+		}
+		return i;
+	}
+
+	void Set(T *data, unsigned stride, unsigned count)
+	{
+		Array = reinterpret_cast<unsigned char*>(data);
+		Count = count;
+		Stride = stride;
+	}
+
+	void Set(void *data, unsigned stride, unsigned count)
+	{
+		Array = reinterpret_cast<unsigned char*>(data);
+		Count = count;
+		Stride = stride;
+	}
+
+	void Clear()
+	{
+		Count = 0;
+		Stride = 0;
+		Array = nullptr;
+	}
+private:
+	unsigned char* Array;
+	unsigned int Count;
+	unsigned int Stride;
+};
diff --git a/wadsrc/static/zscript/actors/actor.zs b/wadsrc/static/zscript/actors/actor.zs
index f5bdb41ac..f9af03de4 100644
--- a/wadsrc/static/zscript/actors/actor.zs
+++ b/wadsrc/static/zscript/actors/actor.zs
@@ -621,7 +621,7 @@ class Actor : Thinker native
 	native static int GetSpriteIndex(name sprt);
 	native clearscope static double GetDefaultSpeed(class<Actor> type);
 	native static class<Actor> GetSpawnableType(int spawnnum);
-	native static int ApplyDamageFactors(class<Inventory> itemcls, Name damagetype, int damage, int defdamage);
+	native clearscope static int ApplyDamageFactors(class<Inventory> itemcls, Name damagetype, int damage, int defdamage);
 	native void RemoveFromHash();
 	native void ChangeTid(int newtid);
 	deprecated("3.8", "Use Level.FindUniqueTid() instead") static int FindUniqueTid(int start = 0, int limit = 0)