#SingleInstance Force
#NoEnv
;#NoTrayIcon ;uncomment if you want to be sneaky...

LastClick = 0
CoordMode, Mouse, Screen

;Get this at http://www.autohotkey.net/~ManaUser/KBoom.wav
FileInstall KBoom.wav, %A_Temp%\KBoom.wav
sStr = OPEN %A_Temp%\KBoom.wav TYPE waveaudio ALIAS KBoom
DllCall("winmm.dll\mciExecute", "Str", sStr)

OnExit DoExit

GroupAdd System, ahk_class ExploreWClass ;Windows Explore
GroupAdd System, ahk_class CabinetWClass ;My Computer type window
GroupAdd System, ahk_class Shell_TrayWnd ;Task bar
GroupAdd System, ahk_class Progman       ;Desktop

~LButton::
If WinActive("ahk_group System")
   Return
ClickSpeed := A_TickCount - LastClick
If (ClickSpeed > 200) ;rough approximation of a double-click.
{
   LastClick := A_TickCount
   Return
}
MouseGetPos X, Y, Win
WinGetPos WX, WY, , , ahk_id %Win%
X -= WX ;adjsut for screen co-ord mode.
Y -= WY
Pattern = 0:-5|4:-12|4:-6|8:-7|7:-3|11:-2|7:-1|13:1|7:0|12:4|8:3|10:6|13:7|10:7|10:9|9:6|5:4|7:10|3:5|3:11|0:7|-2:14|-3:6|-6:9|-5:4|-11:5|-6:2|-11:-2|-6:-3|-10:-10|-3:-5|-2:-7|-3:-13|-1:-9|0:-11
;These are off-sets from the cursor for each point in the shape. It was a pain to encode...
CCrack := Crack%Win% ;get current shape (if any) from active window.
CCrack .= " " . X . "-0" ;a point on at the top of the window, centered over the cutout.
Loop Parse, Pattern, |
{
   StringSplit XY, A_LoopField, :
   ;Parse the offset string and add the mouse position.
   CCrack .= " " . X + XY1 * 10 . "-" . Y + XY2 * 10
}
CCrack .= " " . X . "-0" ;another point on at the top of the window, centered over the cutout.
Crack%Win% := CCrack ;save shape in a unique variable for active window.
sStr = PLAY KBoom FROM 0
DllCall("winmm.dll\mciExecute", "Str", sStr) ;Kaboom!
sleep 100
WinSet Region, 0-0 %CCrack% 3000-0 3000-2000 0-2000, ahk_id %Win%
; So it "draws" a region like this... (2-4 repeat for each shape)
;
; 1----(2,4)----+ - - - - 5
; |      |      |         :
; |      |      |         :
; |      3      |         :
; |    SHAPE    |         :
; |             |         :
; +-------------+         :
; :                       :
; :                       :
; 7 - - - - - - - - - - - 6
; 
; It's bigger than the window to allow for resizing.
Return

^+!z::
Win := WinExist("A")
WinSet Region, , ahk_id %Win%
Crack%Win% =
Return

^+!F12::
FileDelete %A_Temp%\KBoom.wav
ExitApp
Return

DoExit:
FileDelete %A_Temp%\KBoom.wav
ExitApp
Return