#include <stdio.h>
#include <Windows.h>

#define KeyDown(Key) (GetAsyncKeyState(Key) & 0x8000)

inline bool press(INPUT *kbInput, bool down)
{
	kbInput->ki.dwFlags = KEYEVENTF_SCANCODE;

	if (!down)
	{
		kbInput->ki.dwFlags |= KEYEVENTF_KEYUP;
	}

	SendInput(1, kbInput, sizeof(INPUT));

	return down;
}

int main()
{
	POINT centre, current;

	bool leftDown = false, rightDown = false;
	bool spacedown = false;
	INPUT leftKey, rightKey, spacekey;
	ZeroMemory(&leftKey, sizeof(INPUT));
	ZeroMemory(&rightKey, sizeof(INPUT));
	ZeroMemory(&spacekey, sizeof(INPUT));

	leftKey.type = rightKey.type = spacekey.type= INPUT_KEYBOARD;
	leftKey.ki.dwFlags = rightKey.ki.dwFlags = spacekey.ki.dwFlags = KEYEVENTF_SCANCODE;

	leftKey.ki.wScan = 0x1E;
	rightKey.ki.wScan = 0x20;
	spacekey.ki.wScan = 0x39;

	bool toggle = false;

	while (KeyDown(VK_RETURN) == NULL)
	{
		Sleep(250);
	}

	GetCursorPos(&centre);

	while (KeyDown(VK_END) == NULL)
	{
		GetCursorPos(&current);


		if (KeyDown(VK_MBUTTON) != NULL) //TOGGLE KEY
		{
			toggle = !toggle;
			Sleep(200);
		}

		if (KeyDown(0x2D) != NULL || toggle) //HOTKEY or TOGGLE ACTIVATED
		{



			if (current.x < centre.x && !leftDown) //walk left (stop moving right first)
			{
				if (rightDown)
				{
					rightDown = press(&rightKey, false);
				}
				leftDown = press(&leftKey, true);
			}
			else if (current.x > centre.x && !rightDown) //walk right (stop moving left first)
			{
				if (leftDown)
				{
					leftDown = press(&leftKey, false);
				}
				rightDown = press(&rightKey, true);
			}
		}
		else
		{
			if (leftDown)
				leftDown = press(&leftKey, false);
			if (rightDown)
				rightDown = press(&rightKey, false);

		}

		Sleep(5);

	}

	return 0;
}