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ZItemKnockback: WIP

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This commit is contained in:
BotoX 2019-09-05 19:45:20 +02:00
parent 68fd7f5f59
commit 550524cda4
3 changed files with 749 additions and 506 deletions
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72
ZItemKnockback/gamedata/ZItemKnockback.games.txt Normal file
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@ -0,0 +1,72 @@
"Games"
{
"cstrike"
{
"Signatures"
{
"CCSPlayer::FireBullet"
{
"library" "server"
"linux" "@_ZN9CCSPlayer10FireBulletE6VectorRK6QAnglefiiifP11CBaseEntitybff"
}
}
"Functions"
{
"CCSPlayer__FireBullet"
{
"signature" "CCSPlayer::FireBullet"
"callconv" "thiscall"
"return" "int"
"this" "entity"
"arguments"
{
"vecSrc"
{
"type" "vectorptr"
}
"shootAngles"
{
"type" "objectptr"
}
"vecSpread"
{
"type" "float"
}
"iPenetration"
{
"type" "int"
}
"iBulletType"
{
"type" "int"
}
"iDamage"
{
"type" "int"
}
"flRangeModifier"
{
"type" "float"
}
"pevAttacker"
{
"type" "cbaseentity"
}
"bDoEffects"
{
"type" "bool"
}
"x"
{
"type" "float"
}
"y"
{
"type" "float"
}
}
}
}
}
}

95
ZItemKnockback/scripting/ZItemKnockback.sp
View File

@ -5,7 +5,7 @@
#include <sourcemod>
#include <sdkhooks>
#include <sdktools>
#include <dhooks>
public Plugin myinfo =
{
@ -16,8 +16,30 @@ public Plugin myinfo =
url = ""
};
Handle hFireBulletDetour;
int g_LastAttacker = 0;
int g_LastVictim = 0;
public void OnPluginStart()
{
Handle hGameData = LoadGameConfigFile("ZItemKnockback.games");
if(!hGameData)
SetFailState("Failed to load ZItemKnockback gamedata.");
hFireBulletDetour = DHookCreateFromConf(hGameData, "CCSPlayer__FireBullet");
if(!hFireBulletDetour)
SetFailState("Failed to setup detour for CCSPlayer__FireBullet");
delete hGameData;
if(!DHookEnableDetour(hFireBulletDetour, false, Detour_OnFireBullet))
SetFailState("Failed to detour CCSPlayer__FireBullet.");
for(int client = 1; client <= MaxClients; client++)
{
if(IsClientInGame(client))
OnClientPutInServer(client);
}
}
public void OnClientPutInServer(int client)
@ -39,13 +61,10 @@ public Action OnWeaponEquip(int client, int entity)
if(!HammerID)
return;
char sTargetname[64];
GetEntPropString(entity, Prop_Data, "m_iName", sTargetname, sizeof(sTargetname));
CheckWeaponChildren(client, entity);
CheckChildren(client, entity);
}
void CheckWeaponChildren(int client, int parent)
void CheckChildren(int client, int parent)
{
int entity = INVALID_ENT_REFERENCE;
while((entity = FindEntityByClassname(entity, "*")) != INVALID_ENT_REFERENCE)
@ -56,30 +75,64 @@ void CheckWeaponChildren(int client, int parent)
char sClassname[64];
GetEntityClassname(entity, sClassname, sizeof(sClassname));
char sTargetname[64];
GetEntPropString(entity, Prop_Data, "m_iName", sTargetname, sizeof(sTargetname));
PrintToChatAll("%d child: \"%s\" %d (%s)", client, sClassname, entity, sTargetname);
if(!strncmp(sClassname, "func_physbox", 12, false) || !strcmp(sClassname, "func_breakable", false))
{
SDKHook(entity, SDKHook_OnTakeDamagePost, OnTakeDamagePost);
SDKHook(entity, SDKHook_OnTakeDamage, OnTakeDamage);
PrintToChatAll("Hooking \"%s\" %d (%s) OnTakeDamage", sClassname, entity, sTargetname);
}
else if(!strcmp(sClassname, "trigger_push", false))
{
AcceptEntityInput(entity, "Kill");
PrintToChatAll("Killing \"%s\" %d (%s)", sClassname, entity, sTargetname);
}
else
{
CheckChildren(client, entity);
}
}
}
public void OnTakeDamagePost(int victim, int attacker, int inflictor, float damage, int damagetype, int weapon, const float damageForce[3], const float damagePosition[3])
public MRESReturn Detour_OnFireBullet(int pThis, Handle hParams)
{
if(attacker <= 0 || attacker > MAXPLAYERS)
return;
int iKnife = GetEntPropEnt(victim, Prop_Data, "m_pParent");
if(iKnife <= 0)
return;
int client = GetEntPropEnt(iKnife, Prop_Data, "m_hOwnerEntity");
if(client <= 0 || client > MAXPLAYERS)
return;
SDKHooks_TakeDamage(client, inflictor, attacker, damage, damagetype, weapon, damageForce, damagePosition);
PrintToServer("OnFireBullet called on entity %d!", pThis);
g_LastAttacker = 0;
g_LastVictim = 0;
return MRES_Handled;
}
public Action OnTakeDamage(int victim, int &attacker, int &inflictor, float &damage, int &damagetype, int &weapon, float damageForce[3], float damagePosition[3])
{
PrintToChatAll("OnTakeDamage(%d, %d, %d, %f, %d, %d)", victim, attacker, inflictor, damage, damagetype, weapon);
if(attacker <= 0 || attacker > MAXPLAYERS)
return Plugin_Continue;
int client = victim;
while((client = GetEntPropEnt(client, Prop_Data, "m_pParent")) != INVALID_ENT_REFERENCE)
{
if(client >= 1 && client <= MAXPLAYERS)
break;
}
PrintToChatAll("\tclient = %d", client);
if(client <= 0)
return Plugin_Handled;
// TODO: Fix for knife
if(g_LastAttacker == attacker && g_LastVictim == client)
return Plugin_Handled;
g_LastAttacker = attacker;
g_LastVictim = client;
victim = client;
PrintToChatAll("\tvictim = %d", victim);
SDKHooks_TakeDamage(victim, inflictor, attacker, damage, damagetype, weapon, damageForce, damagePosition);
return Plugin_Handled;
}

154
includes/dhooks.inc
View File

@ -72,6 +72,14 @@ enum HookType
HookType_Raw
};
enum CallingConvention
{
CallConv_CDECL,
CallConv_THISCALL,
CallConv_STDCALL,
CallConv_FASTCALL,
};
enum MRESReturn
{
MRES_ChangedHandled = -2, // Use changed values and return MRES_Handled
@ -91,6 +99,45 @@ enum DHookPassFlag
DHookPass_OASSIGNOP = (1<<4), /**< Object has an assignment operator */
};
enum DHookRegister
{
// Don't change the register and use the default for the calling convention.
DHookRegister_Default,
// 8-bit general purpose registers
DHookRegister_AL,
DHookRegister_CL,
DHookRegister_DL,
DHookRegister_BL,
DHookRegister_AH,
DHookRegister_CH,
DHookRegister_DH,
DHookRegister_BH,
// 32-bit general purpose registers
DHookRegister_EAX,
DHookRegister_ECX,
DHookRegister_EDX,
DHookRegister_EBX,
DHookRegister_ESP,
DHookRegister_EBP,
DHookRegister_ESI,
DHookRegister_EDI,
// 128-bit XMM registers
DHookRegister_XMM0,
DHookRegister_XMM1,
DHookRegister_XMM2,
DHookRegister_XMM3,
DHookRegister_XMM4,
DHookRegister_XMM5,
DHookRegister_XMM6,
DHookRegister_XMM7,
// 80-bit FPU registers
DHookRegister_ST0
};
typeset ListenCB
{
//Deleted
@ -170,59 +217,125 @@ native bool DHookRemoveEntityListener(ListenType type, ListenCB callback);
* @param hooktype Type of hook
* @param returntype Type type of return
* @param thistype Type of this pointer or ignore (ignore can be used if not needed)
* @param callback Optional callback function, if not set here must be set when hooking.
*
* @return Returns setup handle for the hook.
* @error Failed to create hook setup handle or invalid callback function.
*/
native Handle DHookCreate(int offset, HookType hooktype, ReturnType returntype, ThisPointerType thistype, DHookCallback callback=INVALID_FUNCTION);
/**
* Creates a detour
*
* @param funcaddr The address of the function to detour.
* Can be Address_Null if you want to load the address from gamedata using DHookSetFromConf.
* @param callConv Calling convention of the function.
* @param returnType Type of the return value.
* @param thisType Type of this pointer or ignore (ignore can be used if not needed)
*
* @return Setup handle for the detour.
* @error Failed to create detour setup handle.
*/
native Handle DHookCreateDetour(Address funcaddr, CallingConvention callConv, ReturnType returntype, ThisPointerType thisType);
/**
* Setup a detour or hook for a function as described in a "Functions" section in gamedata.
*
* @param gameconf GameConfig handle
* @param name Name of the function in the gamedata to load.
*
* @return Setup handle for the detour or INVALID_HANDLE if offset/signature/address wasn't found.
* @error Failed to create detour setup handle, invalid gamedata handle, invalid callback function or failed to find function in gamedata.
*/
native Handle DHookCreateFromConf(Handle gameconf, const char[] name);
/**
* Load details for a vhook or detour from a gamedata file.
*
* @param setup Hook setup handle to set the offset or address on.
* @param gameconf GameConfig handle
* @param source Whether to look in Offsets or Signatures.
* @param name Name of the property to find.
*
* @return True on success, false if nothing was found.
* @error Invalid setup or gamedata handle.
*/
native bool DHookSetFromConf(Handle setup, Handle gameconf, SDKFuncConfSource source, const char[] name);
/**
* Enable the detour of the function described in the hook setup handle.
*
* @param setup Hook setup handle
* @param post True to make the hook a post hook. (If you need to change the retunr value or need the return value use a post hook! If you need to change params and return use a pre and post hook!)
* @param callback Callback function
*
* @return Returns setup handle for the hook or INVALID_HANDLE.
*/
native Handle DHookCreate(int offset, HookType hooktype, ReturnType returntype, ThisPointerType thistype, DHookCallback callback);
* @return True if detour was enabled, false otherwise.
* @error Hook handle is not setup for a detour.
*/
native bool DHookEnableDetour(Handle setup, bool post, DHookCallback callback);
/**
* Disable the detour of the function described in the hook setup handle.
*
* @param setup Hook setup handle
* @param post True to disable a post hook.
* @param callback Callback function
*
* @return True if detour was disabled, false otherwise.
* @error Hook handle is not setup for a detour or function is not detoured.
*/
native bool DHookDisableDetour(Handle setup, bool post, DHookCallback callback);
/* Adds param to a hook setup
*
* @param setup Setup handle to add the param to.
* @param type Param type
* @param size Used for Objects (not Object ptr) to define the size of the object.
* @param flag Used to change the pass type.
* @param setup Setup handle to add the param to.
* @param type Param type
* @param size Used for Objects (not Object ptr) to define the size of the object.
* @param flag Used to change the pass type.
* @param custom_register The register this argument is passed in instead of the stack.
*
* @error Invalid setup handle or too many params added (request upping the max in thread)
* @noreturn
*/
native void DHookAddParam(Handle setup, HookParamType type, int size=-1, DHookPassFlag flag=DHookPass_ByVal);
//native DHookAddParam(Handle:setup, HookParamType:type);
native void DHookAddParam(Handle setup, HookParamType type, int size=-1, DHookPassFlag flag=DHookPass_ByVal, DHookRegister custom_register=DHookRegister_Default);
/* Hook entity
*
* @param setup Setup handle to use to add the hook.
* @param post True to make the hook a post hook. (If you need to change the retunr value or need the return value use a post hook! If you need to change params and return use a pre and post hook!)
* @param post True to make the hook a post hook. (If you need to change the return value or need the return value use a post hook! If you need to change params and return use a pre and post hook!)
* @param entity Entity index to hook on.
* @param removalcb Callback for when the hook is removed (Entity hooks are auto-removed on entity destroyed and will call this callback)
* @param callback Optional callback function, if not set here must be set when creating the hook.
*
* @error Invalid setup handle, invalid entity or invalid hook type.
* @error Invalid setup handle, invalid entity, invalid hook type or invalid callback.
* @return -1 on fail a hookid on success
*/
native int DHookEntity(Handle setup, bool post, int entity, DHookRemovalCB removalcb=INVALID_FUNCTION);
native int DHookEntity(Handle setup, bool post, int entity, DHookRemovalCB removalcb=INVALID_FUNCTION, DHookCallback callback=INVALID_FUNCTION);
/* Hook gamerules
*
* @param setup Setup handle to use to add the hook.
* @param post True to make the hook a post hook. (If you need to change the retunr value or need the return value use a post hook! If you need to change params and return use a pre and post hook!)
* @param post True to make the hook a post hook. (If you need to change the return value or need the return value use a post hook! If you need to change params and return use a pre and post hook!)
* @param removalcb Callback for when the hook is removed (Game rules hooks are auto-removed on map end and will call this callback)
* @param callback Optional callback function, if not set here must be set when creating the hook.
*
* @error Invalid setup handle, failing to get gamerules pointer or invalid hook type.
* @error Invalid setup handle, failing to get gamerules pointer, invalid hook type or invalid callback.
* @return -1 on fail a hookid on success
*/
native int DHookGamerules(Handle setup, bool post, DHookRemovalCB removalcb=INVALID_FUNCTION);
native int DHookGamerules(Handle setup, bool post, DHookRemovalCB removalcb=INVALID_FUNCTION, DHookCallback callback=INVALID_FUNCTION);
/* Hook a raw pointer
*
* @param setup Setup handle to use to add the hook.
* @param post True to make the hook a post hook. (If you need to change the retunr value or need the return value use a post hook! If you need to change params and return use a pre and post hook!)
* @param post True to make the hook a post hook. (If you need to change the return value or need the return value use a post hook! If you need to change params and return use a pre and post hook!)
* @param addr This pointer address.
* @param removalcb Callback for when the hook is removed (Entity hooks are auto-removed on entity destroyed and will call this callback)
* @param callback Optional callback function, if not set here must be set when creating the hook.
*
* @error Invalid setup handle, invalid address or invalid hook type.
* @error Invalid setup handle, invalid address, invalid hook type or invalid callback.
* @return -1 on fail a hookid on success
*/
native int DHookRaw(Handle setup, bool post, Address addr, DHookRemovalCB removalcb=INVALID_FUNCTION);
native int DHookRaw(Handle setup, bool post, Address addr, DHookRemovalCB removalcb=INVALID_FUNCTION, DHookCallback callback=INVALID_FUNCTION);
/* Remove hook by hook id
*
@ -458,6 +571,11 @@ public __ext_dhooks_SetNTVOptional()
MarkNativeAsOptional("DHookAddEntityListener");
MarkNativeAsOptional("DHookRemoveEntityListener");
MarkNativeAsOptional("DHookCreate");
MarkNativeAsOptional("DHookCreateDetour");
MarkNativeAsOptional("DHookCreateFromConf");
MarkNativeAsOptional("DHookSetFromConf");
MarkNativeAsOptional("DHookEnableDetour");
MarkNativeAsOptional("DHookDisableDetour");
MarkNativeAsOptional("DHookAddParam");
MarkNativeAsOptional("DHookEntity");
MarkNativeAsOptional("DHookGamerules");