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infected_ability_touch_hook.sp
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infected_ability_touch_hook.sp
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#pragma semicolon 1
#include <sourcemod>
#include <sdkhooks>
#include <dhooks>
#define PLUGIN_VERSION "1.2"
bool bLateLoad;
GlobalForward gf_IATH;
DynamicHook dh_IATH = null;
public APLRes AskPluginLoad2(Handle myself, bool late, char[] error, int err_max)
{
EngineVersion ev_RetVal = GetEngineVersion();
if (ev_RetVal != Engine_Left4Dead && ev_RetVal != Engine_Left4Dead2)
{
strcopy(error, err_max, "[IATH] Plugin Supports L4D And L4D2 Only!");
return APLRes_SilentFailure;
}
RegPluginLibrary("IATH");
gf_IATH = new GlobalForward("OnAbilityTouch", ET_Event, Param_String, Param_Cell, Param_CellByRef);
bLateLoad = late;
return APLRes_Success;
}
public Plugin myinfo =
{
name = "Infected Ability Touch Hook",
author = "cravenge",
description = "Provides a forward for plugin developers to intercept actions regarding infected abilities.",
version = PLUGIN_VERSION,
url = "https://forums.alliedmods.net/showthread.php?t=331691"
};
public void OnPluginStart()
{
GameData gd_IATH = FetchGameData("infected_ability_touch_hook");
if (gd_IATH == null)
{
SetFailState("[IATH] Game Data Not Found!");
}
dh_IATH = DynamicHook.FromConf(gd_IATH, "OnTouch");
if (dh_IATH == null)
{
SetFailState("[IATH] Offset \"OnTouch\" Missing!");
}
delete gd_IATH;
CreateConVar("iath_version", PLUGIN_VERSION, "Infected Ability Touch Hook Version", FCVAR_NOTIFY|FCVAR_DONTRECORD);
if (bLateLoad)
{
char sEntityClass[64];
for (int i = 1; i < 2049; i++)
{
if (!IsValidEntity(i))
{
continue;
}
GetEntityClassname(i, sEntityClass, sizeof(sEntityClass));
OnEntityCreated(i, sEntityClass);
}
}
}
public void OnEntityCreated(int entity, const char[] classname)
{
if (entity < 1 || entity > 2048)
{
return;
}
if (strncmp(classname, "ability", 7) == 0)
{
dh_IATH.HookEntity(Hook_Pre, entity, dtrOnTouchPre);
}
}
public MRESReturn dtrOnTouchPre(int pThis, DHookParam hParams)
{
if (hParams.IsNull(1))
{
return MRES_Ignored;
}
int iParam = hParams.Get(1);
char sThisClass[64];
GetEntityClassname(pThis, sThisClass, sizeof(sThisClass));
Action a_RetVal = Plugin_Continue;
Call_StartForward(gf_IATH);
Call_PushString(sThisClass);
Call_PushCell(GetEntPropEnt(pThis, Prop_Send, "m_owner"));
Call_PushCellRef(iParam);
Call_Finish(a_RetVal);
switch (a_RetVal)
{
case Plugin_Handled: return MRES_Supercede;
case Plugin_Changed:
{
hParams.Set(1, iParam);
return MRES_ChangedHandled;
}
}
return MRES_Ignored;
}
GameData FetchGameData(const char[] file)
{
char sFilePath[PLATFORM_MAX_PATH];
BuildPath(Path_SM, sFilePath, sizeof(sFilePath), "gamedata/%s.txt", file);
if (!FileExists(sFilePath))
{
File fileTemp = OpenFile(sFilePath, "w");
if (fileTemp == null)
{
SetFailState("[IATH] Game Data Creation Aborted!");
}
fileTemp.WriteLine("\"Games\"");
fileTemp.WriteLine("{");
fileTemp.WriteLine(" \"#default\"");
fileTemp.WriteLine(" {");
fileTemp.WriteLine(" \"Functions\"");
fileTemp.WriteLine(" {");
fileTemp.WriteLine(" \"OnTouch\"");
fileTemp.WriteLine(" {");
fileTemp.WriteLine(" \"offset\" \"OnTouch\"");
fileTemp.WriteLine(" \"hooktype\" \"entity\"");
fileTemp.WriteLine(" \"return\" \"void\"");
fileTemp.WriteLine(" \"this\" \"entity\"");
fileTemp.WriteLine(" \"arguments\"");
fileTemp.WriteLine(" {");
fileTemp.WriteLine(" \"a1\"");
fileTemp.WriteLine(" {");
fileTemp.WriteLine(" \"type\" \"cbaseentity\"");
fileTemp.WriteLine(" }");
fileTemp.WriteLine(" }");
fileTemp.WriteLine(" }");
fileTemp.WriteLine(" }");
fileTemp.WriteLine(" }");
fileTemp.WriteLine(" \"left4dead\"");
fileTemp.WriteLine(" {");
fileTemp.WriteLine(" \"Offsets\"");
fileTemp.WriteLine(" {");
fileTemp.WriteLine(" \"OnTouch\"");
fileTemp.WriteLine(" {");
fileTemp.WriteLine(" \"windows\" \"200\"");
fileTemp.WriteLine(" \"linux\" \"201\"");
fileTemp.WriteLine(" }");
fileTemp.WriteLine(" }");
fileTemp.WriteLine(" }");
fileTemp.WriteLine(" \"left4dead2\"");
fileTemp.WriteLine(" {");
fileTemp.WriteLine(" \"Offsets\"");
fileTemp.WriteLine(" {");
fileTemp.WriteLine(" \"OnTouch\"");
fileTemp.WriteLine(" {");
fileTemp.WriteLine(" \"windows\" \"215\"");
fileTemp.WriteLine(" \"linux\" \"216\"");
fileTemp.WriteLine(" }");
fileTemp.WriteLine(" }");
fileTemp.WriteLine(" }");
fileTemp.WriteLine("}");
fileTemp.Close();
}
return new GameData(file);
}