Add custom command support

This commit is contained in:
Maurice Heumann 2022-12-30 19:17:36 +01:00
parent 306625aa80
commit a7f60aeae2
6 changed files with 169 additions and 17 deletions

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@ -0,0 +1,124 @@
#include <std_include.hpp>
#include "loader/component_loader.hpp"
#include "command.hpp"
#include "scheduler.hpp"
#include <utils/hook.hpp>
#include <utils/memory.hpp>
#include <game/game.hpp>
namespace command
{
namespace
{
std::unordered_map<std::string, command_param_function>& get_command_map()
{
static std::unordered_map<std::string, command_param_function> command_map{};
return command_map;
}
void execute_custom_command()
{
const params params{};
auto& map = get_command_map();
const auto entry = map.find(params[0]);
if (entry != map.end())
{
entry->second(params);
}
}
game::CmdArgs* get_cmd_args()
{
return game::Sys_GetTLS()->cmdArgs;
}
void update_whitelist_stub()
{
game::cmd_function_s* current_function = game::cmd_functions;
while (current_function)
{
current_function->autoComplete = 1;
current_function = current_function->next;
}
}
}
class component final : public component_interface
{
public:
void post_unpack() override
{
command::add("bruuh", [](const params& p)
{
MessageBoxA(0, p.join(0).data(), 0, 0);
});
// Disable whitelist
utils::hook::jump(0x14133CF70_g, update_whitelist_stub);
}
};
params::params()
: nesting_(get_cmd_args()->nesting)
{
assert(this->nesting_ < game::CMD_MAX_NESTING);
}
int params::size() const
{
return get_cmd_args()->argc[this->nesting_];
}
const char* params::get(const int index) const
{
if (index >= this->size())
{
return "";
}
return get_cmd_args()->argv[this->nesting_][index];
}
std::string params::join(const int index) const
{
std::string result = {};
for (auto i = index; i < this->size(); i++)
{
if (i > index) result.append(" ");
result.append(this->get(i));
}
return result;
}
void add(std::string command, command_function function)
{
add(std::move(command), [f = std::move(function)](const params&)
{
f();
});
}
void add(std::string command, command_param_function function)
{
auto& map = get_command_map();
const auto reregister = map.contains(command);
if (!reregister)
{
auto& allocator = *utils::memory::get_allocator();
auto* cmd_function = allocator.allocate<game::cmd_function_s>();
const auto* cmd_string = allocator.duplicate_string(command);
game::Cmd_AddCommandInternal(cmd_string, execute_custom_command, cmd_function);
cmd_function->autoComplete = 1;
}
map[std::move(command)] = std::move(function);
}
}
REGISTER_COMPONENT(command::component)

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@ -0,0 +1,28 @@
#pragma once
namespace command
{
class params
{
public:
params();
int size() const;
const char* get(int index) const;
std::string join(int index) const;
const char* operator[](const int index) const
{
return this->get(index); //
}
private:
int nesting_;
};
using command_function = std::function<void()>;
using command_param_function = std::function<void(const params&)>;
void add(std::string command, command_function function);
void add(std::string command, command_param_function function);
}

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@ -439,6 +439,7 @@ namespace game
const char* autoCompleteDir; const char* autoCompleteDir;
const char* autoCompleteExt; const char* autoCompleteExt;
xcommand_t function; xcommand_t function;
int autoComplete;
}; };
struct CmdArgs struct CmdArgs

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@ -17,12 +17,17 @@ namespace game
WEAK symbol<void(int channel, unsigned int label, const char* fmt, ...)> Com_Printf{0x1421499C0}; WEAK symbol<void(int channel, unsigned int label, const char* fmt, ...)> Com_Printf{0x1421499C0};
WEAK symbol<void(const char* file, int line, int code, const char* fmt, ...)> Com_Error_{0x1420F8BD0}; WEAK symbol<void(const char* file, int line, int code, const char* fmt, ...)> Com_Error_{0x1420F8BD0};
WEAK symbol<bool(eModes mode)> Com_SessionMode_IsMode{0x1420F7DD0}; WEAK symbol<bool(eModes mode)> Com_SessionMode_IsMode{0x1420F7DD0};
WEAK symbol<void(uint32_t localClientNum, eModes fromMode, eModes toMode, uint32_t flags)> Com_SwitchMode{0x14214AF30 }; WEAK symbol<void(uint32_t localClientNum, eModes fromMode, eModes toMode, uint32_t flags)> Com_SwitchMode{
0x14214AF30
};
WEAK symbol<void(int localClientNum, const char* text)> Cbuf_AddText{0x1420EC8B0}; WEAK symbol<void(uint32_t localClientNum, const char* text)> Cbuf_AddText{0x1420EC8B0};
WEAK symbol<void(const char* cmdName, xcommand_t function, cmd_function_s* allocedCmd)> Cmd_AddCommandInternal{ WEAK symbol<void(const char* cmdName, xcommand_t function, cmd_function_s* allocedCmd)> Cmd_AddCommandInternal{
0x1420ED530 0x1420ED530
}; };
WEAK symbol<void(uint32_t localClientNum, ControllerIndex_t controllerIndex, const char* text, bool fromRemoteConsol)> Cmd_ExecuteSingleCommand{
0x1420EDC20
};
WEAK symbol<void(char* text, int maxSize)> Con_GetTextCopy{0x14133A7D0}; WEAK symbol<void(char* text, int maxSize)> Con_GetTextCopy{0x14133A7D0};
// DB // DB
@ -57,7 +62,8 @@ namespace game
}; };
// Rendering // Rendering
WEAK symbol<void(const char*, int, const void*, float, float, float, float, float, const float*, int)> R_AddCmdDrawText{ WEAK symbol<void(const char*, int, const void*, float, float, float, float, float, const float*, int)>
R_AddCmdDrawText{
0x141CD98D0 0x141CD98D0
}; };
@ -85,14 +91,6 @@ namespace game
// Global game definitions // Global game definitions
constexpr auto CMD_MAX_NESTING = 8; constexpr auto CMD_MAX_NESTING = 8;
struct cmd_args_t
{
CmdArgs* operator->() const
{
return Sys_GetTLS()->cmdArgs;
}
};
// Re-implementations // Re-implementations
eModes Com_SessionMode_GetMode(); eModes Com_SessionMode_GetMode();
} }

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@ -149,7 +149,8 @@ namespace utils::hook
void un_move(); void un_move();
}; };
std::optional<std::pair<void*, void*>> iat(const nt::library& library, const std::string& target_library, const std::string& process, void* stub); std::optional<std::pair<void*, void*>> iat(const nt::library& library, const std::string& target_library,
const std::string& process, void* stub);
void nop(void* place, size_t length); void nop(void* place, size_t length);
void nop(size_t place, size_t length); void nop(size_t place, size_t length);

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@ -22,13 +22,13 @@ namespace utils
void* allocate(size_t length); void* allocate(size_t length);
template <typename T> template <typename T>
inline T* allocate() T* allocate()
{ {
return this->allocate_array<T>(1); return this->allocate_array<T>(1);
} }
template <typename T> template <typename T>
inline T* allocate_array(const size_t count = 1) T* allocate_array(const size_t count = 1)
{ {
return static_cast<T*>(this->allocate(count * sizeof(T))); return static_cast<T*>(this->allocate(count * sizeof(T)));
} }
@ -47,13 +47,13 @@ namespace utils
static void* allocate(size_t length); static void* allocate(size_t length);
template <typename T> template <typename T>
static inline T* allocate() static T* allocate()
{ {
return allocate_array<T>(1); return allocate_array<T>(1);
} }
template <typename T> template <typename T>
static inline T* allocate_array(const size_t count = 1) static T* allocate_array(const size_t count = 1)
{ {
return static_cast<T*>(allocate(count * sizeof(T))); return static_cast<T*>(allocate(count * sizeof(T)));
} }