1 files changed, 282 insertions, 0 deletions
diff --git a/src/classes0/UJoystick.pas b/src/classes0/UJoystick.pas
new file mode 100644
index 00000000..0ca7ba09
--- /dev/null
+++ b/src/classes0/UJoystick.pas
@@ -0,0 +1,282 @@
+unit UJoystick;
+
+interface
+
+{$I switches.inc}
+
+
+uses SDL;
+
+type
+  TJoyButton = record
+    State:      integer;
+    Enabled:    boolean;
+    Type_:      byte;
+    Sym:        cardinal;
+  end;
+
+  TJoyHatState = record
+    State:      Boolean;
+    LastTick:   Cardinal;
+    Enabled:    boolean;
+    Type_:      byte;
+    Sym:        cardinal;
+  end;
+
+  TJoyUnit = record
+    Button:   array[0..15] of TJoyButton;
+    HatState: Array[0..3]  of TJoyHatState;
+  end;
+
+  TJoy = class
+    constructor Create;
+    procedure Update;
+  end;
+
+var
+  Joy:        TJoy;
+  JoyUnit:    TJoyUnit;
+  SDL_Joy:    PSDL_Joystick;
+  JoyEvent:   TSDL_Event;
+
+implementation
+
+uses SysUtils,
+     ULog;
+
+constructor TJoy.Create;
+var
+  B, N:    integer;
+begin
+  inherited;
+
+  //Old Corvus5 Method
+  {// joystick support
+  SDL_JoystickEventState(SDL_IGNORE);
+  SDL_InitSubSystem(SDL_INIT_JOYSTICK);
+  if SDL_NumJoysticks <> 1 then
+    Log.LogStatus('Joystick count <> 1', 'TJoy.Create');
+
+  SDL_Joy := SDL_JoystickOpen(0);
+  if SDL_Joy = nil then
+    Log.LogError('SDL_JoystickOpen failed', 'TJoy.Create');
+
+  if SDL_JoystickNumButtons(SDL_Joy) <> 16 then
+    Log.LogStatus('Joystick button count <> 16', 'TJoy.Create');
+
+//  SDL_JoystickEventState(SDL_ENABLE);
+  // Events don't work - thay hang the whole application with SDL_JoystickEventState(SDL_ENABLE)
+
+  // clear states
+  for B := 0 to 15 do
+    JoyUnit.Button[B].State := 1;
+
+  // mapping
+  JoyUnit.Button[1].Enabled := true;
+  JoyUnit.Button[1].Type_ := SDL_KEYDOWN;
+  JoyUnit.Button[1].Sym := SDLK_RETURN;
+  JoyUnit.Button[2].Enabled := true;
+  JoyUnit.Button[2].Type_ := SDL_KEYDOWN;
+  JoyUnit.Button[2].Sym := SDLK_ESCAPE;
+
+  JoyUnit.Button[12].Enabled := true;
+  JoyUnit.Button[12].Type_ := SDL_KEYDOWN;
+  JoyUnit.Button[12].Sym := SDLK_LEFT;
+  JoyUnit.Button[13].Enabled := true;
+  JoyUnit.Button[13].Type_ := SDL_KEYDOWN;
+  JoyUnit.Button[13].Sym := SDLK_DOWN;
+  JoyUnit.Button[14].Enabled := true;
+  JoyUnit.Button[14].Type_ := SDL_KEYDOWN;
+  JoyUnit.Button[14].Sym := SDLK_RIGHT;
+  JoyUnit.Button[15].Enabled := true;
+  JoyUnit.Button[15].Type_ := SDL_KEYDOWN;
+  JoyUnit.Button[15].Sym := SDLK_UP;
+  }
+  //New Sarutas method
+  SDL_JoystickEventState(SDL_IGNORE);
+  SDL_InitSubSystem(SDL_INIT_JOYSTICK);
+  if SDL_NumJoysticks < 1 then
+  begin
+    Log.LogError('No Joystick found');
+    exit;
+  end;
+
+
+  SDL_Joy := SDL_JoystickOpen(0);
+  if SDL_Joy = nil then
+  begin
+    Log.LogError('Could not Init Joystick');
+    exit;
+  end;
+  N := SDL_JoystickNumButtons(SDL_Joy);
+  //if N < 6 then Log.LogStatus('Joystick button count < 6', 'TJoy.Create');
+
+  for B := 0 to 5 do begin
+    JoyUnit.Button[B].Enabled := true;
+    JoyUnit.Button[B].State := 1;
+    JoyUnit.Button[B].Type_ := SDL_KEYDOWN;
+  end;
+
+  JoyUnit.Button[0].Sym := SDLK_Return;
+  JoyUnit.Button[1].Sym := SDLK_Escape;
+  JoyUnit.Button[2].Sym := SDLK_M;
+  JoyUnit.Button[3].Sym := SDLK_R;
+
+  JoyUnit.Button[4].Sym := SDLK_RETURN;
+  JoyUnit.Button[5].Sym := SDLK_ESCAPE;
+
+  //Set HatState
+  for B := 0 to 3 do begin
+    JoyUnit.HatState[B].Enabled := true;
+    JoyUnit.HatState[B].State := False;
+    JoyUnit.HatState[B].Type_ := SDL_KEYDOWN;
+  end;
+
+  JoyUnit.HatState[0].Sym := SDLK_UP;
+  JoyUnit.HatState[1].Sym := SDLK_RIGHT;
+  JoyUnit.HatState[2].Sym := SDLK_DOWN;
+  JoyUnit.HatState[3].Sym := SDLK_LEFT;
+end;
+
+procedure TJoy.Update;
+var
+  B:      integer;
+  State:  UInt8;
+  Tick:   Cardinal;
+  Axes:   Smallint;
+begin
+  SDL_JoystickUpdate;
+
+  //Manage Buttons
+  for B := 0 to 15 do begin
+    if (JoyUnit.Button[B].Enabled) and (JoyUnit.Button[B].State <> SDL_JoystickGetButton(SDL_Joy, B)) and (JoyUnit.Button[B].State = 0) then begin
+      JoyEvent.type_ := JoyUnit.Button[B].Type_;
+      JoyEvent.key.keysym.sym := JoyUnit.Button[B].Sym;
+      SDL_PushEvent(@JoyEvent);
+    end;
+  end;
+
+
+  for B := 0 to 15 do begin
+    JoyUnit.Button[B].State := SDL_JoystickGetButton(SDL_Joy, B);
+  end;
+
+  //Get Tick
+  Tick := SDL_GetTicks();
+
+  //Get CoolieHat
+  if (SDL_JoystickNumHats(SDL_Joy)>=1) then
+    State := SDL_JoystickGetHat(SDL_Joy, 0)
+  else
+    State := 0;
+
+  //Get Axis  
+  if (SDL_JoystickNumAxes(SDL_Joy)>=2) then
+  begin
+    //Down - Up (X- Axis)
+    Axes := SDL_JoystickGetAxis(SDL_Joy, 1);
+    If Axes >= 15000 then
+      State := State or SDL_HAT_Down
+    Else If Axes <= -15000 then
+      State := State or SDL_HAT_UP;
+
+    //Left - Right (Y- Axis)
+    Axes := SDL_JoystickGetAxis(SDL_Joy, 0);
+    If Axes >= 15000 then
+      State := State or SDL_HAT_Right
+    Else If Axes <= -15000 then
+      State := State or SDL_HAT_Left;
+  end;
+
+  //Manage Hat and joystick Events
+  if (SDL_JoystickNumHats(SDL_Joy)>=1) OR (SDL_JoystickNumAxes(SDL_Joy)>=2) then
+  begin
+
+    //Up Button
+    If (JoyUnit.HatState[0].Enabled) and ((SDL_HAT_UP AND State) = SDL_HAT_UP) then
+    begin //IF Button is newly Pressed or if he is Pressed longer than 500 msecs
+      if (JoyUnit.HatState[0].State = False) OR (JoyUnit.HatState[0].Lasttick < Tick) then
+      begin
+        //Set Tick and State
+        if JoyUnit.HatState[0].State then
+          JoyUnit.HatState[0].Lasttick := Tick + 200
+        else
+          JoyUnit.HatState[0].Lasttick := Tick + 500;
+
+        JoyUnit.HatState[0].State := True;
+
+        JoyEvent.type_ := JoyUnit.HatState[0].Type_;
+        JoyEvent.key.keysym.sym := JoyUnit.HatState[0].Sym;
+        SDL_PushEvent(@JoyEvent);
+      end;
+    end
+    else
+      JoyUnit.HatState[0].State := False;
+
+    //Right Button
+    If (JoyUnit.HatState[1].Enabled) and ((SDL_HAT_RIGHT AND State) = SDL_HAT_RIGHT) then
+    begin //IF Button is newly Pressed or if he is Pressed longer than 500 msecs
+      if (JoyUnit.HatState[1].State = False) OR (JoyUnit.HatState[1].Lasttick < Tick) then
+      begin
+        //Set Tick and State
+        if JoyUnit.HatState[1].State then
+          JoyUnit.HatState[1].Lasttick := Tick + 200
+        else
+          JoyUnit.HatState[1].Lasttick := Tick + 500;
+
+        JoyUnit.HatState[1].State := True;
+        
+        JoyEvent.type_ := JoyUnit.HatState[1].Type_;
+        JoyEvent.key.keysym.sym := JoyUnit.HatState[1].Sym;
+        SDL_PushEvent(@JoyEvent);
+      end;
+    end
+    else
+      JoyUnit.HatState[1].State := False;
+
+    //Down button
+    If (JoyUnit.HatState[2].Enabled) and ((SDL_HAT_DOWN AND State) = SDL_HAT_DOWN) then
+    begin //IF Button is newly Pressed or if he is Pressed longer than 230 msecs
+      if (JoyUnit.HatState[2].State = False) OR (JoyUnit.HatState[2].Lasttick < Tick) then
+      begin
+        //Set Tick and State
+        if JoyUnit.HatState[2].State then
+          JoyUnit.HatState[2].Lasttick := Tick + 200
+        else
+          JoyUnit.HatState[2].Lasttick := Tick + 500;
+
+        JoyUnit.HatState[2].State := True;
+        
+        JoyEvent.type_ := JoyUnit.HatState[2].Type_;
+        JoyEvent.key.keysym.sym := JoyUnit.HatState[2].Sym;
+        SDL_PushEvent(@JoyEvent);
+      end;
+    end
+    else
+      JoyUnit.HatState[2].State := False;
+
+    //Left Button
+    If (JoyUnit.HatState[3].Enabled) and ((SDL_HAT_LEFT AND State) = SDL_HAT_LEFT) then
+    begin //IF Button is newly Pressed or if he is Pressed longer than 230 msecs
+      if (JoyUnit.HatState[3].State = False) OR (JoyUnit.HatState[3].Lasttick < Tick) then
+      begin
+        //Set Tick and State
+        if JoyUnit.HatState[3].State then
+          JoyUnit.HatState[3].Lasttick := Tick + 200
+        else
+          JoyUnit.HatState[3].Lasttick := Tick + 500;
+
+        JoyUnit.HatState[3].State := True;
+        
+        JoyEvent.type_ := JoyUnit.HatState[3].Type_;
+        JoyEvent.key.keysym.sym := JoyUnit.HatState[3].Sym;
+        SDL_PushEvent(@JoyEvent);
+      end;
+    end
+    else
+      JoyUnit.HatState[3].State := False;
+  end;
+
+end;
+
+end.