(*

 * Hedgewars, a worms-like game

 * Copyright (c) 2004, 2005, 2006 Andrey Korotaev <unC0Rr@gmail.com>

 *

 * Distributed under the terms of the BSD-modified licence:

 *

 * Permission is hereby granted, free of charge, to any person obtaining a copy

 * of this software and associated documentation files (the "Software"), to deal

 * with the Software without restriction, including without limitation the

 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or

 * sell copies of the Software, and to permit persons to whom the Software is

 * furnished to do so, subject to the following conditions:

 *

 * 1. Redistributions of source code must retain the above copyright notice,

 *    this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright notice,

 *    this list of conditions and the following disclaimer in the documentation

 *    and/or other materials provided with the distribution.

 * 3. The name of the author may not be used to endorse or promote products

 *    derived from this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED

 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF

 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO

 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;

 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,

 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR

 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF

 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 *)

unit uTeams;

interface

uses SDLh, uConsts, uKeys, uGears, uRandom;

{$INCLUDE options.inc}

type PHedgehog = ^THedgehog;

     PTeam     = ^TTeam;

     PHHAmmo   = ^THHAmmo;

     THedgehog = record

                 Name: string[MAXNAMELEN];

                 Gear: PGear;

                 NameTag, HealthTag: PSDL_Surface;

                 Ammo: PHHAmmo;

                 CurSlot, CurAmmo: LongWord;

                 AltSlot, AltAmmo: LongWord;

                 Team: PTeam;

                 AttacksNum: Longword;

                 visStepPos: LongWord;

                 BotLevel  : LongWord; // 0 - Human player

                 end;

     THHAmmo   = array[0..cMaxSlotIndex, 0..cMaxSlotAmmoIndex] of TAmmo;

     TTeam = record

             Next: PTeam;

             Color: Cardinal;

             TeamName: string[MAXNAMELEN];

             ExtDriven: boolean;

             Aliases: array[0..cKeyMaxIndex] of shortstring;

             Hedgehogs: array[0..cMaxHHIndex] of THedgehog;

             Ammos: array[0..cMaxHHIndex] of THHAmmo;

             CurrHedgehog: integer;

             NameTag: PSDL_Surface;

             CrossHairRect,

             GraveRect, HealthRect: TSDL_Rect;

             GraveName: string;

             FortName: string;

             TeamHealth: integer;

             TeamHealthBarWidth: integer;

             DrawHealthY: integer;

             AttackBar: LongWord;

             end;

var CurrentTeam: PTeam = nil;

    TeamsList: PTeam = nil;

function AddTeam: PTeam;

procedure ApplyAmmoChanges(var Hedgehog: THedgehog);

procedure SwitchHedgehog;

procedure InitTeams;

procedure OnUsedAmmo(Ammo: PHHAmmo);

function  HHHasAmmo(Hedgehog: PHedgehog; Ammo: TAmmoType): boolean;

function  TeamSize(p: PTeam): Longword;

procedure RecountTeamHealth(team: PTeam);

procedure RestoreTeamsFromSave;

function CheckForWin: boolean;

implementation

const MaxTeamHealth: integer = 0;

procedure FreeTeamsList; forward;

function CheckForWin: boolean;

var team, AliveTeam: PTeam;

    AliveCount: Longword;

begin

Result:= false;

AliveCount:= 0;

AliveTeam:= nil;

team:= TeamsList;

while team <> nil do

      begin

      if team.TeamHealth > 0 then

         begin

         inc(AliveCount);

         AliveTeam:= team

         end;

      team:= team.Next

      end;

if AliveCount >= 2 then exit;

Result:= true;

TurnTimeLeft:= 0;

if AliveCount = 0 then

   begin // draw

   AddCaption(trmsg[sidDraw], $FFFFFF, capgrpGameState);

   AddGear(0, 0, gtATFinishGame, 0, 0, 0, 2000)

   end else // win

   begin

   AddCaption(Format(trmsg[sidWinner], AliveTeam.TeamName), $FFFFFF, capgrpGameState);

   AddGear(0, 0, gtATFinishGame, 0, 0, 0, 2000)

   end;

end;

procedure SwitchHedgehog;

var tteam: PTeam;

    th: integer;

begin

FreeActionsList;

TargetPoint.X:= NoPointX;

TryDo(CurrentTeam <> nil, 'nil Team', true);

tteam:= CurrentTeam;

with CurrentTeam.Hedgehogs[CurrentTeam.CurrHedgehog] do

     if Gear <> nil then Gear.Message:= 0;

repeat

  CurrentTeam:= CurrentTeam.Next;

  if CurrentTeam = nil then CurrentTeam:= TeamsList;

  th:= CurrentTeam.CurrHedgehog;

  repeat

    CurrentTeam.CurrHedgehog:= Succ(CurrentTeam.CurrHedgehog) mod (cMaxHHIndex + 1);

  until (CurrentTeam.Hedgehogs[CurrentTeam.CurrHedgehog].Gear <> nil) or (CurrentTeam.CurrHedgehog = th)

until (CurrentTeam.Hedgehogs[CurrentTeam.CurrHedgehog].Gear <> nil) or (CurrentTeam = tteam);

TryDo(CurrentTeam <> tteam, 'Switch hedgehog: only one team?!', true);

with CurrentTeam.Hedgehogs[CurrentTeam.CurrHedgehog] do

     begin

     AttacksNum:= 0;

     with Gear^ do

          begin

          State:= gstHHDriven;

          Active:= true

          end;

     FollowGear:= Gear

     end;

ResetKbd;

cWindSpeed:= (GetRandom * 2 - 1) * cMaxWindSpeed;

AddGear(0, 0, gtATSmoothWindCh, 0, 0, 0, 1).Tag:= round(72 * cWindSpeed / cMaxWindSpeed);

{$IFDEF DEBUGFILE}AddFileLog('Wind = '+FloatToStr(cWindSpeed));{$ENDIF}

ApplyAmmoChanges(CurrentTeam.Hedgehogs[CurrentTeam.CurrHedgehog]);

TurnTimeLeft:= cHedgehogTurnTime

end;

function AddTeam: PTeam;

begin

New(Result);

TryDo(Result <> nil, 'AddTeam: Result = nil', true);

FillChar(Result^, sizeof(TTeam), 0);

Result.AttackBar:= 2;

Result.CurrHedgehog:= cMaxHHIndex;

if TeamsList = nil then TeamsList:= Result

                   else begin

                        Result.Next:= TeamsList;

                        TeamsList:= Result

                        end;

CurrentTeam:= Result

end;

procedure FreeTeamsList;

var t, tt: PTeam;

begin

tt:= TeamsList;

TeamsList:= nil;

while tt<>nil do

      begin

      t:= tt;

      tt:= tt.Next;

      Dispose(t)

      end;

end;

procedure FillAmmoGroup(Ammo: PHHAmmo);

var mi: array[0..cMaxSlotIndex] of byte;

    a: TAmmoType;

begin

FillChar(mi, sizeof(mi), 0);

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

    begin

    TryDo(mi[Ammoz[a].Slot] <= cMaxSlotAmmoIndex, 'Ammo slot overflow', true);

    Ammo^[Ammoz[a].Slot, mi[Ammoz[a].Slot]]:= Ammoz[a].Ammo;

    inc(mi[Ammoz[a].Slot])

    end;

end;

procedure RecountAllTeamsHealth;

var p: PTeam;

begin

p:= TeamsList;

while p <> nil do

      begin

      RecountTeamHealth(p);

      p:= p.Next

      end

end;

procedure InitTeams;

var p: PTeam;

    i: integer;

    th: integer;

begin

p:= TeamsList;

while p <> nil do

      begin

      th:= 0;

      FillAmmoGroup(@p.Ammos[0]);

      for i:= 0 to cMaxHHIndex do

          if p.Hedgehogs[i].Gear <> nil then

             begin

             p.Hedgehogs[i].Gear.Health:= 100;

             inc(th, 100);

             p.Hedgehogs[i].Ammo:= @p.Ammos[0] // 0 means all hedgehogs

             // will have common set of ammo

             end;

      if th > MaxTeamHealth then MaxTeamHealth:= th;

      p:= p.Next

      end;

RecountAllTeamsHealth

end;

procedure ApplyAmmoChanges(var Hedgehog: THedgehog);

var s: shortstring;

begin

TargetPoint.X:= NoPointX;

with Hedgehog do

     begin

     if Ammo[CurSlot, CurAmmo].Count = 0 then

        begin

        CurAmmo:= 0;

        while (CurAmmo <= cMaxSlotAmmoIndex) and (Ammo[CurSlot, CurAmmo].Count = 0) do inc(CurAmmo)

        end;

with Ammo[CurSlot, CurAmmo] do

     begin

     s:= trammo[Ammoz[AmmoType].NameId];

     if Count <> AMMO_INFINITE then

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

     if (Propz and ammoprop_Timerable) <> 0 then

        s:= s + ', ' + inttostr(Timer div 1000) + ' ' + trammo[sidSeconds];

     AddCaption(s, Team.Color, capgrpAmmoinfo);

     if (Propz and ammoprop_NeedTarget) <> 0

        then begin

        Gear.State:= Gear.State or      gstHHChooseTarget;

        isCursorVisible:= true

        end else begin

        Gear.State:= Gear.State and not gstHHChooseTarget;

        isCursorVisible:= false

        end;

     ShowCrosshair:= (Propz and ammoprop_NoCrosshair) = 0

     end

     end

end;

procedure PackAmmo(Ammo: PHHAmmo; Slot: integer);

var ami: integer;

    b: boolean;

begin

    repeat

      b:= false;

      ami:= 0;

      while (not b) and (ami < cMaxSlotAmmoIndex) do

          if (Ammo[Slot, ami].Count = 0)

             and (Ammo[Slot, ami + 1].Count > 0) then b:= true

                                                 else inc(ami);

      if b then // there's a free item in ammo stack

         Ammo[Slot, ami]:= Ammo[Slot, ami + 1]

    until not b;

end;

procedure OnUsedAmmo(Ammo: PHHAmmo);

var s, a: Longword;

begin

with CurrentTeam.Hedgehogs[CurrentTeam.CurrHedgehog] do

     begin

     if CurAmmoGear = nil then begin s:= CurSlot; a:= CurAmmo end

                          else begin s:= AltSlot; a:= AltAmmo end;

     with Ammo[s, a] do

          if Count <> AMMO_INFINITE then

             begin

             dec(Count);

             if Count = 0 then PackAmmo(Ammo, CurSlot)

             end

     end

end;

function  HHHasAmmo(Hedgehog: PHedgehog; Ammo: TAmmoType): boolean;

var slot, ami: integer;

begin

Slot:= Ammoz[Ammo].Slot;

ami:= 0;

Result:= false;

while (not Result) and (ami <= cMaxSlotAmmoIndex) do

      begin

      with  Hedgehog.Ammo[Slot, ami] do

            if (AmmoType = Ammo) and (Count > 0) then Result:= true;

      inc(ami)

      end

end;

function  TeamSize(p: PTeam): Longword;

var i: Longword;

begin

Result:= 0;

for i:= 0 to cMaxHHIndex do

    if p.Hedgehogs[i].Gear <> nil then inc(Result)

end;

procedure RecountTeamHealth(team: PTeam);

var i: integer;

begin

with team^ do

     begin

     TeamHealthBarWidth:= 0;

     for i:= 0 to cMaxHHIndex do

         if Hedgehogs[i].Gear <> nil then

            inc(TeamHealthBarWidth, Hedgehogs[i].Gear.Health);

     TeamHealth:= TeamHealthBarWidth;

     if TeamHealthBarWidth > MaxTeamHealth then

        begin

        MaxTeamHealth:= TeamHealthBarWidth;

        RecountAllTeamsHealth;

        end else TeamHealthBarWidth:= (TeamHealthBarWidth * cTeamHealthWidth) div MaxTeamHealth

     end;

// FIXME: at the game init, gtTeamHealthSorters are created for each team, and they work simultaneously

AddGear(0, 0, gtTeamHealthSorter, 0)

end;

procedure RestoreTeamsFromSave;

var p: PTeam;

begin

p:= TeamsList;

while p <> nil do

      begin

      p.ExtDriven:= false;

      p:= p.Next

      end;

end;

initialization

finalization

FreeTeamsList

end.