Fix CS_GetWeaponPrice returning incorrect weapon prices.

extensions/cstrike/natives.cpp

@@ -459,7 +459,7 @@ static cell_t CS_GetWeaponPrice(IPluginContext *pContext, const cell_t *params)
 	if (!IsValidWeaponID(params[2]))
 		return pContext->ThrowNativeError("Invalid WeaponID passed for this game");
 
-	static int iLoadoutSlotOffset = -1;
+	/*static int iLoadoutSlotOffset = -1;
 
 	if (iLoadoutSlotOffset == -1)
 	{
@@ -468,7 +468,7 @@ static cell_t CS_GetWeaponPrice(IPluginContext *pContext, const cell_t *params)
 			iLoadoutSlotOffset = -1;
 			return pContext->ThrowNativeError("Failed to get LoadoutSlotOffset offset.");
 		}
-	}
+	}*/
 
 	if (g_iPriceOffset == -1)
 	{
@@ -497,16 +497,7 @@ static cell_t CS_GetWeaponPrice(IPluginContext *pContext, const cell_t *params)
 
 	void *pDef = GetItemDefintionByName(classname);
 
-	int iLoadoutSlot = *(int *)((intptr_t)pDef + iLoadoutSlotOffset);
-
-	CEconItemView *pView = GetEconItemView(pEntity, iLoadoutSlot);
-
-	if (!pView)
-	{
-		return pContext->ThrowNativeError("Failed to get CEconItemVIiew for %s", classname);
-	}
-
-	void *pWpnData = GetCCSWeaponData(pView);
+	void *pWpnData = GetCCSWpnDataFromItemDef(pDef);
 
 	if (!pWpnData)
 	{
@@ -618,6 +609,10 @@ static cell_t CS_AliasToWeaponID(IPluginContext *pContext, const cell_t *params)
 	{
 		return SMCSWeapon_M4A1;
 	}
+	else if (strstr(weapon, "revolver") != NULL)
+	{
+		return SMCSWeapon_DEAGLE;
+	}
 #endif
 
 	int id = GetFakeWeaponID(AliasToWeaponID(weapon));

extensions/cstrike/util_cstrike.cpp

@@ -161,16 +161,16 @@ void *GetCCSWeaponData(CEconItemView *view)
 			pWrapper = g_pBinTools->CreateCall(addr, CallConv_ThisCall, &retpass, pass, 1))
 	}
 
-	unsigned char vstk[sizeof(const char *)];
+	unsigned char vstk[sizeof(void *)];
 	unsigned char *vptr = vstk;
 
 	*(CEconItemView **)vptr = view;
 
-	void *pDef = NULL;
+	void *pWpnData = NULL;
 
-	pWrapper->Execute(vstk, &pDef);
+	pWrapper->Execute(vstk, &pWpnData);
 
-	return pDef;
+	return pWpnData;
 }
 
 void *GetItemSchema()
@@ -244,6 +244,40 @@ void *GetItemDefintionByName(const char *classname)
 
 	return pItemDef;
 }
+
+void *GetCCSWpnDataFromItemDef(void *pItemDef)
+{
+	if (!pItemDef)
+		return NULL;
+
+	static ICallWrapper *pWrapper = NULL;
+
+	if (!pWrapper)
+	{
+		// In windows this is a sig to the inlined code in GetCCSWeaponData
+		// We abuse the fact that the ItemDef is stored in ecx
+		REGISTER_ADDR("GetCCSWeaponDataFromDef", NULL,
+			PassInfo pass[1]; \
+			PassInfo retpass; \
+			pass[0].flags = PASSFLAG_BYVAL; \
+			pass[0].type = PassType_Basic; \
+			pass[0].size = sizeof(void *); \
+			retpass.flags = PASSFLAG_BYVAL; \
+			retpass.type = PassType_Basic; \
+			retpass.size = sizeof(void *); \
+			pWrapper = g_pBinTools->CreateCall(addr, CallConv_ThisCall, &retpass, pass, 1))
+	}
+
+	unsigned char vstk[sizeof(void *)];
+	unsigned char *vptr = vstk;
+
+	*(void **)vptr = pItemDef;
+
+	void *pWpnData = NULL;
+	pWrapper->Execute(vstk, &pWpnData);
+
+	return pWpnData;
+}
 #endif
 
 #if SOURCE_ENGINE != SE_CSGO

extensions/cstrike/util_cstrike.h

@@ -39,6 +39,7 @@ CEconItemView *GetEconItemView(void *pEntity, int iSlot);
 void *GetCCSWeaponData(CEconItemView *view);
 void *GetItemSchema();
 void *GetItemDefintionByName(const char *classname);
+void *GetCCSWpnDataFromItemDef(void *pItemDef);
 
 static const char *szWeaponInfo[] =
 {

gamedata/sm-cstrike.games/game.csgo.txt

@@ -143,12 +143,21 @@
 				"linux"		"\x55\x89\xE5\x83\xEC\x28\x89\x5D\xF4\x8B\x5D\x08\x89\x75\xF8\x89\x7D\xFC\x89\x1C\x24\xE8\x2A\x2A\x2A\x2A\x83\xF8\x02"
 			}
 			//GetCCSWeaponData Found in HandleCommand_Buy_Internal
+			//Uses an econitemview
 			"GetCCSWeaponData"
 			{
 				"library"	"server"
 				"windows"	"\x85\xC9\x75\x2A\x33\xC0\xC3\xE8\x2A\x2A\x2A\x2A\x8B"
 				"linux"		"\x55\x89\xE5\x83\xEC\x18\x8B\x45\x08\x85\xC0\x74\x2A\x89\x04\x24"
 			}
+			//In windows this is to inlined code.
+			//It is within GetCCSWeaponData
+			"GetCCSWeaponDataFromDef"
+			{
+				"library"	"server"
+				"windows"	"\x8B\x01\x56\x8B\x35\x2A\x2A\x2A\x2A\xFF\x10\x0F\xB7\xC0\xB9\x2A\x2A\x2A\x2A\x50\xFF\x56\x08\x5E\xC3"
+				"linux"		"\x55\x31\xC0\x89\xE5\x53\x83\xEC\x14\x8B\x55\x08\x85\xD2"
+			}
 		}
 	}