Fix missing definition

Author: jensewe

addons/sourcemod/scripting/l4d_fix_prop_los.sp

@@ -3,7 +3,6 @@
 
 #include <sourcemod>
 #include <dhooks>
-#include <@Forgetest/gamedatawrapper>
 
 #define PLUGIN_VERSION "1.0"
 
@@ -16,6 +15,27 @@ public Plugin myinfo =
 	url = "https://github.com/Target5150/MoYu_Server_Stupid_Plugins",
 }
 
+methodmap GameDataWrapper < GameData {
+	public GameDataWrapper(const char[] file) {
+		GameData gd = new GameData(file);
+		if (!gd) SetFailState("Missing gamedata \"%s\"", file);
+		return view_as<GameDataWrapper>(gd);
+	}
+	public DynamicDetour CreateDetourOrFail(
+			const char[] name,
+			DHookCallback preHook = INVALID_FUNCTION,
+			DHookCallback postHook = INVALID_FUNCTION) {
+		DynamicDetour hSetup = DynamicDetour.FromConf(this, name);
+		if (!hSetup)
+			SetFailState("Missing detour setup \"%s\"", name);
+		if (preHook != INVALID_FUNCTION && !hSetup.Enable(Hook_Pre, preHook))
+			SetFailState("Failed to pre-detour \"%s\"", name);
+		if (postHook != INVALID_FUNCTION && !hSetup.Enable(Hook_Post, postHook))
+			SetFailState("Failed to post-detour \"%s\"", name);
+		return hSetup;
+	}
+}
+
 public void OnPluginStart()
 {
 	GameDataWrapper gd = new GameDataWrapper("l4d_fix_prop_los");