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Cstrike: Add CS_OnGetItemPrice forward to get/alter an item price on purchase

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This commit is contained in:
Arkshine 2015-07-25 13:33:30 +02:00
parent cf2f753660
commit 60cdbeb219
4 changed files with 35 additions and 3 deletions
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13
modules/cstrike/cstrike/CstrikeHacks.cpp
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@ -23,6 +23,7 @@ void CtrlDetours_Natives(bool set);
int ForwardInternalCommand = -1;
int ForwardOnBuy = -1;
int ForwardOnBuyAttempt = -1;
int ForwardOnGetItemPrice = -1;
int *UseBotArgs;
const char **BotArgs;
@ -258,6 +259,18 @@ DETOUR_DECL_MEMBER2(AddAccount, void, int, amount, bool, bTrackChange) // void C
{
return;
}
else if (ForwardOnGetItemPrice != -1)
{
int client = G_HL_TypeConversion.cbase_to_id(this);
cell price[1]; *price = -amount;
cell preparedCell = MF_PrepareCellArrayA(price, sizeof(price), true);
if (MF_IsPlayerAlive(client) && MF_ExecuteForward(ForwardOnGetItemPrice, client, CurrentItemId, preparedCell) > 0)
{
amount = -*price;
}
}
}
DETOUR_MEMBER_CALL(AddAccount)(amount, bTrackChange);

1
modules/cstrike/cstrike/CstrikeHacks.h
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@ -34,6 +34,7 @@ extern IGameConfig *CommonConfig;
extern int ForwardInternalCommand;
extern int ForwardOnBuy;
extern int ForwardOnBuyAttempt;
extern int ForwardOnGetItemPrice;
typedef edict_t* (*CreateNamedEntityFunc)(string_t iszClassname);
typedef void* (*UTIL_FindEntityByStringFunc)(void* pStartEntity, const char *szKeyword, const char *szValue);

6
modules/cstrike/cstrike/CstrikeMain.cpp
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@ -65,16 +65,18 @@ void OnPluginsLoaded()
ForwardInternalCommand = MF_RegisterForward("CS_InternalCommand", ET_STOP, FP_CELL, FP_STRING, FP_DONE);
ForwardOnBuy = MF_RegisterForward("CS_OnBuy" , ET_STOP, FP_CELL, FP_CELL, FP_DONE);
ForwardOnBuyAttempt = MF_RegisterForward("CS_OnBuyAttempt" , ET_STOP, FP_CELL, FP_CELL, FP_DONE);
ForwardOnGetItemPrice = MF_RegisterForward("CS_OnGetItemPrice" , ET_STOP, FP_CELL, FP_CELL, FP_ARRAY, FP_DONE);
// Checking whether such public forwards are used in plugins.
// Resetting variable to -1 to avoid running unnecessary code in ClientCommand.
if (!UTIL_CheckForPublic("CS_InternalCommand")) { ForwardInternalCommand = -1; }
if (!UTIL_CheckForPublic("CS_OnBuy")) { ForwardOnBuy = -1; }
if (!UTIL_CheckForPublic("CS_OnBuyAttempt")) { ForwardOnBuyAttempt = -1; }
if (!UTIL_CheckForPublic("CS_OnGetItemPrice")) { ForwardOnGetItemPrice = -1; }
// And enable/disable detours when necessary.
ToggleDetour_ClientCommands(ForwardInternalCommand != -1 || ForwardOnBuy != -1 || ForwardOnBuyAttempt != -1);
ToggleDetour_BuyCommands(ForwardOnBuy != -1);
ToggleDetour_ClientCommands(ForwardInternalCommand != -1 || ForwardOnBuy != -1 || ForwardOnBuyAttempt != -1 || ForwardOnGetItemPrice != -1);
ToggleDetour_BuyCommands(ForwardOnBuy != -1 || ForwardOnGetItemPrice != -1);
// Search pev/vtable offset automatically.
TypeConversion.init();

18
plugins/include/cstrike.inc
View File

@ -1104,4 +1104,20 @@ forward CS_OnBuyAttempt(index, item);
* @return PLUGIN_CONTINUE to let the buy continue
* PLUGIN_HANDLED to block the buy
*/
forward CS_OnBuy(index, item);
forward CS_OnBuy(index, item, &price);
/**
* Called when a client purchased an item and game is about to apply item's price.
*
* @note This is called right after the user received the item and before the
* money is deducted from their cash reserves.
* @note For a list of possible item ids see the CSI_* constants.
*
* @param index Client index
* @param item Item id
* @param price Item price or buffer to store a newly price to
*
* @return PLUGIN_CONTINUE to use the default price
* PLUGIN_HANDLED or higher to use a newly-set price
*/
forward CS_OnGetItemPrice(index, item, &price);