#RequireAdmin
#include <Misc.au3>
If WinExists(@ScriptName) Then Exit
AutoItWinSetTitle(@ScriptName)
Global $Paused = 0
HotKeySet("{F3}", "TogglePause")
HotKeySet("{F2}", "Terminate")
Local $hDLL = DllOpen("user32.dll")

While 1
  IsHoldingAlt()
WEnd


Func IsHoldingAlt()
    If _IsPressed("12", $hDLL) Then
	  ConsoleWrite("_IsPressed - Pressed Shift." &	@crlf)
	  ; Standby cycle until the key is released.

	  While _IsPressed("12", $hDLL)
		 Shoot()
	  WEnd
   EndIf
EndFunc


;you will have to update the color value in PixelSearch function to match your games colors
;take a screenshot of your game, extract the hex value of the trigger color and paste it over 0xBA0A0B in the function
;PixelSearch ( left, top, right, bottom, color [, shade-variation = 0 [, step = 1 [, hwnd]]] )
Func Shoot()
	    ;check if crosshair is white to reduce false positives such as character names
        Local $coord = PixelSearch(@desktopWidth / 2 - 1, @desktopHeight / 2 + 1, @desktopWidth / 2, @desktopHeight / 2 + 20, 0xDEDEDE, 30)
        If @error Then
		    ;check if crosshair is red
            Local $coord = PixelSearch(@desktopWidth / 2 - 1, @desktopHeight / 2 + 1, @desktopWidth / 2, @desktopHeight / 2 + 20, 0xE57F72, 50)
			   If Not @error Then
				  MouseClick("Left")
			   EndIf
        EndIf
EndFunc


;function to pause the script
Func TogglePause()
    $Paused = Not $Paused
    While $Paused
        Sleep(100)
    WEnd
    ToolTip("")
 EndFunc


;function to exit the script
Func Terminate()
    Exit 0
EndFunc