(*

 * Hedgewars, a free turn based strategy game

 * Copyright (c) 2004-2012 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 uAIActions;

interface

uses uFloat, uTypes;

const MAXACTIONS     = 96;

    aia_none       = 0;

    aia_Left       = 1;

    aia_Right      = 2;

    aia_Timer      = 3;

    aia_attack     = 4;

    aia_Up         = 5;

    aia_Down       = 6;

    aia_Switch     = 7;

    aia_Weapon     = $8000;

    aia_WaitXL     = $8001;

    aia_WaitXR     = $8002;

    aia_LookLeft   = $8003;

    aia_LookRight  = $8004;

    aia_AwareExpl  = $8005;

    aia_HJump      = $8006;

    aia_LJump      = $8007;

    aia_Skip       = $8008;

    aia_Wait       = $8009;

    aia_Put        = $800A;

    aim_push       = $8000;

    aim_release    = $8001;

    ai_specmask    = $8000;

type TAction = record

        Action: Longword;

        X, Y, Param: LongInt;

        Time: Longword;

        end;

    TActions = record

        Count, Pos: Longword;

        actions: array[0..Pred(MAXACTIONS)] of TAction;

        Score: LongInt;

        isWalkingToABetterPlace: boolean;

        end;

procedure AddAction(var Actions: TActions; Action: Longword; Param: LongInt; TimeDelta: Longword; X, Y: LongInt);

procedure ProcessAction(var Actions: TActions; Me: PGear);

implementation

uses uAIMisc, uAI, uAmmos, uVariables, uCommands, uUtils, uDebug, uIO{$IFDEF TRACEAIACTIONS}, uConsole{$ENDIF};

var PrevX: LongInt = 0;

    timedelta: Longword = 0;

const ActionIdToStr: array[0..7] of string[16] = (

{aia_none}           '',

{aia_Left}           'left',

{aia_Right}          'right',

{aia_Timer}          'timer',

{aia_attack}         'attack',

{aia_Up}             'up',

{aia_Down}           'down',

{aia_Switch}         'switch'

                     );

{$IFDEF TRACEAIACTIONS}

const SpecActionIdToStr: array[$8000..$8009] of string[16] = (

{aia_Weapon}             'aia_Weapon',

{aia_WaitX}              'aia_WaitX',

{aia_WaitY}              'aia_WaitY',

{aia_LookLeft}           'aia_LookLeft',

{aia_LookRight}          'aia_LookRight',

{aia_AwareExpl}          'aia_AwareExpl',

{aia_HJump}              'aia_HJump',

{aia_LJump}              'aia_LJump',

{aia_Skip}               'aia_Skip',

{aia_Wait}               'aia_Wait'

);

procedure DumpAction(Action: TAction; Me: PGear);

begin

if (Action.Action and ai_specmask) = 0 then

    WriteLnToConsole('AI action: '+ActionIdToStr[Action.Action])

else

    begin

    WriteLnToConsole('AI action: '+SpecActionIdToStr[Action.Action]);

    if (Action.Action = aia_WaitXL) or (Action.Action = aia_WaitXR) then

        WriteLnToConsole('AI action Wait X = '+IntToStr(Action.Param)+', current X = '+IntToStr(hwRound(Me^.X)))

    else if (Action.Action = aia_AwareExpl) then

        WriteLnToConsole('Aware X = ' + IntToStr(Action.X) + ', Y = ' + IntToStr(Action.Y));

    end

end;

{$ENDIF}

procedure AddAction(var Actions: TActions; Action: Longword; Param: LongInt; TimeDelta: Longword; X, Y: LongInt);

begin

with Actions do

    begin

    actions[Count].Action:= Action;

    actions[Count].Param:= Param;

    actions[Count].X:= X;

    actions[Count].Y:= Y;

    if Count > 0 then

        actions[Count].Time:= TimeDelta

    else

        actions[Count].Time:= GameTicks + TimeDelta;

    inc(Count);

    TryDo(Count < MAXACTIONS, 'AI: actions overflow', true);

    end

end;

procedure CheckHang(Me: PGear);

begin

if hwRound(Me^.X) <> PrevX then

    begin

    PrevX:= hwRound(Me^.X);

    timedelta:= 0

    end else

        begin

        inc(timedelta);

        if timedelta > 1700 then

            begin

            timedelta:= 0;

            FreeActionsList

            end

        end

end;

procedure ProcessAction(var Actions: TActions; Me: PGear);

var s: shortstring;

begin

repeat

if Actions.Pos >= Actions.Count then exit;

with Actions.actions[Actions.Pos] do

    begin

    if Time > GameTicks then

        exit;

    {$IFDEF TRACEAIACTIONS}

    DumpAction(Actions.actions[Actions.Pos], Me);

    {$ENDIF}

    if (Action and ai_specmask) <> 0 then

        case Action of

            aia_Weapon: 

            SetWeapon(TAmmoType(Param));

            aia_WaitXL: 

            if hwRound(Me^.X) = Param then

                begin

                Action:= aia_LookLeft;

                Time:= GameTicks;

                exit

                end

                else if hwRound(Me^.X) < Param then

                    begin

                    //OutError('AI: WaitXL assert (' + IntToStr(hwRound(Me^.X)) + ' < ' + IntToStr(Param) + ')', false);

                    FreeActionsList;

                    exit

                    end

                else

                    begin 

                    CheckHang(Me);

                    exit

                    end;

            aia_WaitXR: 

            if hwRound(Me^.X) = Param then

                begin

                Action:= aia_LookRight;

                Time:= GameTicks;

                exit

                end

                else if hwRound(Me^.X) > Param then

                    begin

                    //OutError('AI: WaitXR assert (' + IntToStr(hwRound(Me^.X)) + ' > ' + IntToStr(Param) + ')', false);

                    FreeActionsList;

                    exit

                    end

                else

                    begin 

                    CheckHang(Me);

                    exit

                    end;

            aia_LookLeft:

            if not Me^.dX.isNegative then

                begin

                ParseCommand('+left', true);

                exit

                end

            else

                ParseCommand('-left', true);

            aia_LookRight:

            if Me^.dX.isNegative then

                begin

                ParseCommand('+right', true);

                exit

                end

            else ParseCommand('-right', true);

            aia_AwareExpl:

            AwareOfExplosion(X, Y, Param);

            aia_HJump:

            ParseCommand('hjump', true);

            aia_LJump:

            ParseCommand('ljump', true);

            aia_Skip:

            ParseCommand('skip', true);

            aia_Put:

            doPut(X, Y, true);

            end

        else

            begin

            s:= ActionIdToStr[Action];

            if (Param and ai_specmask) <> 0 then

                case Param of

                aim_push:

                s:= '+' + s;

                aim_release:

                s:= '-' + s;

            end

        else if Param <> 0 then

            s:= s + ' ' + IntToStr(Param);

        ParseCommand(s, true)

        end

    end;

inc(Actions.Pos);

if Actions.Pos <= Actions.Count then

    inc(Actions.actions[Actions.Pos].Time, GameTicks);

until false

end;

end.