#define WIN32_LEAN_AND_MEAN
#include <Windows.h>

#include <cstdint>
#include <thread>

#include "offsets.h"

//offsets in offsets.h

//hack function
void BunnyHop(const HMODULE instance) noexcept
{
	const auto client = reinterpret_cast<std::uintptr_t>(GetModuleHandle("client.dll"));

	//hack loop
	while (!GetAsyncKeyState(VK_END))
	{
		std::this_thread::sleep_for(std::chrono::milliseconds(1));

		//make sure space is pressed
		if (!GetAsyncKeyState(VK_SPACE))
			continue;

		//get local player
		const auto localPlayer = *reinterpret_cast<std::uintptr_t*>(client + offset::dwLocalPlayer);

		//is valid
		if (!localPlayer)
			continue;

		const auto health = *reinterpret_cast<std::int32_t*>(localPlayer + offset::m_iHealth);

		//is alive
		if (!health)
			continue;

		const auto flags = *reinterpret_cast<std::int32_t*>(localPlayer + offset::m_fFlags);

		//on ground
		(flags & (1 << 0)) ?
			*reinterpret_cast<std::uintptr_t*>(client + offset::dwForceJump) = 6 : //force jump
			*reinterpret_cast<std::uintptr_t*>(client + offset::dwForceJump) = 4; //reset
	}

	//uninject
	FreeLibraryAndExitThread(instance, 0);
}

// entry point

int __stdcall DllMain(
	const HMODULE instance,
	const std::uintptr_t reason,
	const void* reserved
)
{
	//DLL_PROCESS_ATTACH
	if (reason == 1)
	{
		DisableThreadLibraryCalls(instance);

		//create Hack Thread
		const auto thread = CreateThread(
			nullptr,
			0,
			reinterpret_cast<LPTHREAD_START_ROUTINE>(BunnyHop),
			instance,
			0,
			nullptr
		);

		if (thread)
			CloseHandle(thread);
	}
	return 1;
}