; Pongr
; Very simple game to get started with PureBasic and the game development.
; 2011 - Ruben Mueller, Aaron Mueller

EnableExplicit

XIncludeFile "Structs.pbi"
XIncludeFile "Globals.pbi"
XIncludeFile "Draw.pbi"
XIncludeFile "Functions.pbi"
XIncludeFile "Events.pbi"

; Initialize all the variables and stuff. I think we refactor this
; into a separate file if it gets messy.
GameStates("MAIN_MENU")\DrawFun = @DrawMenu()
GameStates("MAIN_MENU")\HandleEventFun = @HandleEventMenu()

GameStates("OPTION_MENU")\DrawFun = @DrawMenu()
GameStates("OPTION_MENU")\HandleEventFun = @HandleEventMenu()

GameStates("RUNNING_GAME")\DrawFun = @DrawRunningGame()
GameStates("RUNNING_GAME")\HandleEventFun = @HandleEventRunningGame()

; Read the complete game menus from the data/menu.data file.
; TODO: IncludeBinary looks interesting!
If ReadFile(0, "../data/menu.data")
  CreateRegularExpression(0, "^([A-Z_-]+) {(.*)}") ; Menu title
  CreateRegularExpression(1, "^  BUTTON: {(.+)} -> (.+)") ; A button
  CreateRegularExpression(2, "^  OPTION: (.*)") ; A option field (TODO: Thats not exactly right)
  
  While Eof(0) = 0
    Dim Matches$(0)
    Define Line.s = ReadString(0)
    
    ; We found a new menu
    If MatchRegularExpression(0, Line)
      Define i
      For i=0 To ExtractRegularExpression(0, Line, Matches$())-1
        Debug Matches$(i) ; FIXME: Thats not what we want ...
      Next
    EndIf
  Wend
  
  FreeRegularExpression(0)
  FreeRegularExpression(1)
  FreeRegularExpression(2)
  CloseFile(0)
EndIf

Menus("MAIN_MENU")\Title = "Pongr"

Define Item.GameMenuItem
Item.GameMenuItem\Label = "Run game"
Item.GameMenuItem\Selected = #True
Item.GameMenuItem\TargetState = GameStates("RUNNING_GAME")
AddElement(Menus("MAIN_MENU")\Entries())
menus("MAIN_MENU")\Entries() = Item

Define Item.GameMenuItem
Item.GameMenuItem\Label = "Options"
Item.GameMenuItem\Selected = #False
Item.GameMenuItem\TargetState = GameStates("OPTION_MENU")
AddElement(Menus("MAIN_MENU")\Entries())
menus("MAIN_MENU")\Entries() = Item

Define Item.GameMenuItem
Item.GameMenuItem\Label = "Quit"
Item.GameMenuItem\Selected = #False
Item.GameMenuItem\TargetState = GameStates("RLY_QUIT")
AddElement(Menus("MAIN_MENU")\Entries())
menus("MAIN_MENU")\Entries() = Item

*ActiveMenu.GameMenu = @Menus(CurrentState)

; Initialize subsystems
If InitSprite() = 0 Or InitKeyboard() = 0
  MessageRequester("Error", "Sorry, can't keep up.", 0)
  End
EndIf

; Start the main loop which will create the window, wait for events and draw things
; on the screen. To escape from this loop, press ESC or close the window.
If OpenWindow(0, 0, 0, Screen\Width, Screen\Height, title, #PB_Window_ScreenCentered)
  OpenWindowedScreen(WindowID(0), 0, 0, Screen\Width, Screen\Height, 0, 0, 0)
  
  Repeat
    ; Event loop
    Repeat
      Define Event = WindowEvent()
    Until Event = 0
    
    ; Handle global events
    ExamineKeyboard()
    If KeyboardReleased(#PB_Key_F)
      CloseScreen()
      If Fullscreen = 0
        OpenScreen(800, 600, 32, Title)
        Fullscreen = 1
      Else
        OpenWindowedScreen(WindowID(0), 0, 0, 800, 600, 0, 0, 0)
        Fullscreen = 0
      EndIf
    EndIf
    
    ; Handle the events for the current state
    GameStates(CurrentState)\HandleEventFun()
    
    ; Draw the stuff on the screen
    FlipBuffers()
    ClearScreen(RGB(0, 0, 0))
    If StartDrawing(ScreenOutput())
      GameStates(CurrentState)\DrawFun()
      StopDrawing()
    EndIf
    
    Delay(1)
  Until KeyboardPushed(#PB_Key_Escape)
EndIf
; IDE Options = PureBasic 4.51 (MacOS X - x86)
; CursorPosition = 5
; FirstLine = 4
; EnableXP
; EnableCompileCount = 0
; EnableBuildCount = 0