1.Add missing header files.

2.Add file extension check in CRegexResourceReplaceEntry::GetReplacedFileName.

Plugins/ResourceReplacer/ResourceReplacer.cpp

@@ -104,8 +104,16 @@ class CRegexResourceReplaceEntry : public IResourceReplaceEntry
 		std::cmatch match;
 		if (std::regex_match(szSourceFileName, match, m_Regex))
 		{
-			ReplacedFileName = std::regex_replace(szSourceFileName, m_Regex, m_Replacement);
-			return true;
+			std::string NewReplacedFileName = std::regex_replace(szSourceFileName, m_Regex, m_Replacement);
+
+			auto SourceExtension = V_GetFileExtension(szSourceFileName);
+			auto ReplaceExtension = V_GetFileExtension(NewReplacedFileName.c_str());
+
+			if (!stricmp(SourceExtension, ReplaceExtension))
+			{
+				ReplacedFileName = NewReplacedFileName;
+				return true;
+			}
 		}
 		return false;
 	}

Plugins/ResourceReplacer/enginedef.h

@@ -0,0 +1,40 @@
+#pragma once
+
+#include <com_model.h>
+
+#define	MAX_QPATH		64			// max length of a quake game pathname
+
+typedef struct sfx_s
+{
+	char 	name[MAX_QPATH];
+	cache_user_t	cache;
+	int		servercount;
+}sfx_t;
+
+typedef struct sfxcache_s
+{
+	int 	length;
+	int 	loopstart;
+	int 	speed;
+	int 	width;
+	int 	stereo;
+	byte	data[1];		// variable sized
+} sfxcache_t;
+
+typedef struct
+{
+	sfx_t* sfx;			// sfx number
+	int		leftvol;		// 0-255 volume
+	int		rightvol;		// 0-255 volume
+	int		end;			// end time in global paintsamples
+	int 	pos;			// sample position in sfx
+	int		looping;		// where to loop, -1 = no looping
+	int		entnum;			// to allow overriding a specific sound
+	int		entchannel;		//
+	vec3_t	origin;			// origin of sound effect
+	vec_t	dist_mult;		// distance multiplier (attenuation/clipK)
+	int		master_vol;		// 0-255 master volume
+	int		isentence;
+	int		iword;
+	int		pitch;			// real-time pitch after any modulation or shift by dynamic data
+} channel_t;