(*

 * Hedgewars, a free turn based strategy game

 * Copyright (c) 2004-2011 Andrey Korotaev <unC0Rr@gmail.com>

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; version 2 of the License

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA

 *)

{$INCLUDE "options.inc"}

unit PascalExports;

(*

 * If the engine is compiled as library this unit will export functions

 * as C declarations for convenient library usage in your application and

 * language of choice.

 *

 * See also: C declarations on wikipedia

 *           http://en.wikipedia.org/wiki/X86_calling_conventions#cdecl

 *)

interface

uses uTypes, uConsts, uVariables, GLunit, uKeys, uSound, uAmmos, uUtils, uCommands;

{$INCLUDE "config.inc"}

procedure HW_versionInfo(netProto: PLongInt; versionStr: PPChar); cdecl; export;

function HW_getNumberOfWeapons:LongInt; cdecl; export;

function HW_getMaxNumberOfTeams:LongInt; cdecl; export;

function HW_getMaxNumberOfHogs:LongInt; cdecl; export;

implementation

{$IFDEF HWLIBRARY}

var cZoomVal: GLfloat;

    previousGameState: TGameState;

// retrieve protocol information

procedure HW_versionInfo(netProto: PLongInt; versionStr: PPChar); cdecl; export;

begin

    netProto^:= cNetProtoVersion;

    versionStr^:= cVersionString;

end;

// emulate mouse/keyboard input

procedure HW_click; cdecl; export;

begin

    leftClick:= true;

end;

procedure HW_ammoMenu; cdecl; export;

begin

    rightClick:= true;

end;

procedure HW_zoomSet(value: GLfloat); cdecl; export;

begin

    cZoomVal:= value;

    ZoomValue:= value;

end;

procedure HW_zoomIn; cdecl; export;

begin

    if wheelDown = false then

        wheelUp:= true;

end;

procedure HW_zoomOut; cdecl; export;

begin

    if wheelUp = false then

        wheelDown:= true;

end;

procedure HW_zoomReset; cdecl; export;

begin

    ZoomValue:= cZoomVal;

    //middleClick:= true;

    // center the camera at current hog

    if CurrentHedgehog <> nil then

        followGear:= CurrentHedgehog^.Gear;

end;

function HW_zoomFactor: GLfloat; cdecl; export;

begin

    exit( ZoomValue / cDefaultZoomLevel );

end;

function HW_zoomLevel: LongInt; cdecl; export;

begin

    exit( trunc((ZoomValue - cDefaultZoomLevel) / cZoomDelta) );

end;

procedure HW_walkingKeysUp; cdecl; export;

begin

    leftKey:= false;

    rightKey:= false;

    upKey:= false;

    downKey:= false;

    preciseKey:= false;

end;

procedure HW_otherKeysUp; cdecl; export;

begin

    spaceKey:= false;

    enterKey:= false;

    backspaceKey:= false;

end;

procedure HW_allKeysUp; cdecl; export;

begin

    // set all keys to released

    uKeys.initModule;

end;

procedure HW_walkLeft; cdecl; export;

begin

    leftKey:= true;

end;

procedure HW_walkRight; cdecl; export;

begin

    rightKey:= true;

end;

procedure HW_preciseSet(status:boolean); cdecl; export;

begin

    preciseKey:= status;

end;

procedure HW_aimUp; cdecl; export;

begin

    upKey:= true;

end;

procedure HW_aimDown; cdecl; export;

begin

    downKey:= true;

end;

procedure HW_shoot; cdecl; export;

begin

    spaceKey:= true;

end;

procedure HW_jump; cdecl; export;

begin

    enterKey:= true;

end;

procedure HW_backjump; cdecl; export;

begin

    backspaceKey:= true;

end;

procedure HW_tab; cdecl; export;

begin

    tabKey:= true;

end;

procedure HW_chat; cdecl; export;

begin

    chatAction:= true;

end;

procedure HW_screenshot; cdecl; export;

begin

    flagMakeCapture:= true;

end;

procedure HW_pause; cdecl; export;

begin

    if isPaused = false then

        pauseAction:= true;

end;

procedure HW_pauseToggle; cdecl; export;

begin

    pauseAction:= true;

end;

function HW_isPaused: boolean; cdecl; export;

begin

    exit( isPaused );

end;

procedure HW_suspend; cdecl; export;

begin

    previousGameState:= GameState;

    GameState:= gsSuspend;

end;

procedure HW_resume; cdecl; export;

begin

    GameState:= previousGameState;

end;

// equivalent to esc+y; when closeFrontend = true the game exits after memory cleanup

procedure HW_terminate(closeFrontend: boolean); cdecl; export;

begin

    alsoShutdownFrontend:= closeFrontend;

    ParseCommand('forcequit', true);

end;

function HW_getSDLWindow: pointer; cdecl; export;

begin

{$IFDEF SDL13}

    exit( SDLwindow );

{$ELSE}

    exit( nil );

{$ENDIF}

end;

// cursor handling

procedure HW_setCursor(x,y: LongInt); cdecl; export;

begin

    CursorPoint.X:= x;

    CursorPoint.Y:= y;

end;

procedure HW_getCursor(x,y: PLongInt); cdecl; export;

begin

    x^:= CursorPoint.X;

    y^:= CursorPoint.Y;

end;

// ammo menu related functions

function HW_isAmmoMenuOpen: boolean; cdecl; export;

begin

    exit( bShowAmmoMenu );

end;

function HW_isAmmoMenuNotAllowed: boolean; cdecl; export;

begin;

    exit ( (TurnTimeLeft = 0) or (not CurrentTeam^.ExtDriven and (((CurAmmoGear = nil) or

           ((Ammoz[CurAmmoGear^.AmmoType].Ammo.Propz and ammoprop_AltAttack) = 0)) and hideAmmoMenu)) );

end;

function HW_isWeaponRequiringClick: boolean; cdecl; export;

begin

    if (CurrentHedgehog <> nil) and (CurrentHedgehog^.Gear <> nil) and (CurrentHedgehog^.BotLevel = 0) then

        exit( (CurrentHedgehog^.Gear^.State and gstHHChooseTarget) <> 0 )

    else

        exit(false);

end;

function HW_isWeaponTimerable: boolean; cdecl; export;

begin

    if (CurrentHedgehog <> nil) and (CurrentHedgehog^.Ammo <> nil) and (CurrentHedgehog^.BotLevel = 0) then

        exit( (Ammoz[CurrentHedgehog^.CurAmmoType].Ammo.Propz and ammoprop_Timerable) <> 0)

    else

        exit(false);

end;

function HW_isWeaponSwitch: boolean cdecl; export;

begin

    if (CurAmmoGear <> nil) and (CurrentHedgehog^.BotLevel = 0) then

        exit(CurAmmoGear^.AmmoType = amSwitch)

    else

        exit(false)

end;

function HW_isWeaponRope: boolean cdecl; export;

begin

    if (CurrentHedgehog <> nil) and (CurrentHedgehog^.Ammo <> nil) and (CurrentHedgehog^.BotLevel = 0) then

        exit (CurrentHedgehog^.CurAmmoType = amRope)

    else

        exit(false);

end;

procedure HW_setGrenadeTime(time: LongInt); cdecl; export;

begin

    ParseCommand('/timer ' + inttostr(time), true);

end;

procedure HW_setPianoSound(snd: LongInt); cdecl; export;

begin

    // this most likely won't work in network game

    if (CurrentHedgehog <> nil) and (CurrentHedgehog^.Ammo <> nil) and (CurrentHedgehog^.BotLevel = 0)

       and (CurrentHedgehog^.CurAmmoType = amPiano) then

        case snd of

            0: PlaySound(sndPiano0);

            1: PlaySound(sndPiano1);

            2: PlaySound(sndPiano2);

            3: PlaySound(sndPiano3);

            4: PlaySound(sndPiano4);

            5: PlaySound(sndPiano5);

            6: PlaySound(sndPiano6);

            7: PlaySound(sndPiano7);

            else PlaySound(sndPiano8);

        end;

end;

function HW_getWeaponNameByIndex(whichone: LongInt): PChar; cdecl; export;

begin

    exit (str2pchar(trammo[Ammoz[TAmmoType(whichone+1)].NameId]));

end;

function HW_getWeaponCaptionByIndex(whichone: LongInt): PChar; cdecl; export;

begin

    exit (str2pchar(trammoc[Ammoz[TAmmoType(whichone+1)].NameId]));

end;

function HW_getWeaponDescriptionByIndex(whichone: LongInt): PChar; cdecl; export;

begin

    exit (str2pchar(trammod[Ammoz[TAmmoType(whichone+1)].NameId]));

end;

function HW_getNumberOfWeapons:LongInt; cdecl; export;

begin

    exit(ord(high(TAmmoType)));

end;

procedure HW_setWeapon(whichone: LongInt); cdecl; export;

begin

    if (not CurrentTeam^.ExtDriven) and (CurrentTeam^.Hedgehogs[0].BotLevel = 0) then

        SetWeapon(TAmmoType(whichone+1));

end;

function HW_isWeaponAnEffect(whichone: LongInt): boolean; cdecl; export;

begin

    exit(Ammoz[TAmmoType(whichone+1)].Ammo.Propz and ammoprop_Effect <> 0)

end;

function HW_getAmmoCounts(counts: PLongInt): LongInt; cdecl; export;

var a : PHHAmmo;

    slot, index: LongInt;

begin

    if (CurrentTeam = nil) or

       (CurrentHedgehog = nil) or

       (CurrentTeam^.ExtDriven) or

       (CurrentTeam^.Hedgehogs[0].BotLevel <> 0) then

        exit(-1);

    a:= CurrentHedgehog^.Ammo;

    for slot:= 0 to cMaxSlotIndex do

        for index:= 0 to cMaxSlotAmmoIndex do

            if a^[slot,index].Count <> 0 then // yes, ammomenu is hell

                counts[ord(a^[slot,index].AmmoType)-1]:= a^[slot,index].Count;

    exit(0);

end;

procedure HW_getAmmoDelays (skipTurns: PByte); cdecl; export;

var a : TAmmoType;

begin

    for a:= Low(TAmmoType) to High(TAmmoType) do

        skipTurns[ord(a)-1]:= byte(Ammoz[a].SkipTurns);

end;

function HW_getTurnsForCurrentTeam: LongInt; cdecl; export;

begin

    exit(CurrentTeam^.Clan^.TurnNumber);

end;

function HW_getMaxNumberOfHogs: LongInt; cdecl; export;

begin

    exit(cMaxHHIndex+1);

end;

function HW_getMaxNumberOfTeams: LongInt; cdecl; export;

begin

    exit(cMaxTeams);

end;

{$ENDIF}

end.