(*

 * 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 uGearsList;

interface

uses uFloat, uTypes;

function  AddGear(X, Y: LongInt; Kind: TGearType; State: Longword; dX, dY: hwFloat; Timer: LongWord): PGear;

procedure DeleteGear(Gear: PGear);

procedure InsertGearToList(Gear: PGear);

procedure RemoveGearFromList(Gear: PGear);

implementation

uses uRandom, uUtils, uConsts, uVariables, uAmmos, uTeams, uStats,

    uTextures, uScript, uRenderUtils, uAI, uCollisions,

    uGearsRender, uGearsUtils;

var GCounter: LongWord = 0; // this does not get re-initialized, but should be harmless

procedure InsertGearToList(Gear: PGear);

var tmp, ptmp: PGear;

begin

    tmp:= GearsList;

    ptmp:= GearsList;

    while (tmp <> nil) and (tmp^.Z <= Gear^.Z) do

        begin

        ptmp:= tmp;

        tmp:= tmp^.NextGear

        end;

    if ptmp <> tmp then

        begin

        Gear^.NextGear:= ptmp^.NextGear;

        Gear^.PrevGear:= ptmp;

        if ptmp^.NextGear <> nil then

            ptmp^.NextGear^.PrevGear:= Gear;

        ptmp^.NextGear:= Gear

        end

    else

        begin

        Gear^.NextGear:= GearsList;

        if Gear^.NextGear <> nil then

            Gear^.NextGear^.PrevGear:= Gear;

        GearsList:= Gear;

        end;

end;

procedure RemoveGearFromList(Gear: PGear);

begin

if Gear^.NextGear <> nil then

    Gear^.NextGear^.PrevGear:= Gear^.PrevGear;

if Gear^.PrevGear <> nil then

    Gear^.PrevGear^.NextGear:= Gear^.NextGear

else

    GearsList:= Gear^.NextGear

end;

function AddGear(X, Y: LongInt; Kind: TGearType; State: Longword; dX, dY: hwFloat; Timer: LongWord): PGear;

var gear: PGear;

begin

inc(GCounter);

AddFileLog('AddGear: #' + inttostr(GCounter) + ' (' + inttostr(x) + ',' + inttostr(y) + '), d(' + floattostr(dX) + ',' + floattostr(dY) + ') type = ' + EnumToStr(Kind));

New(gear);

FillChar(gear^, sizeof(TGear), 0);

gear^.X:= int2hwFloat(X);

gear^.Y:= int2hwFloat(Y);

gear^.Target.X:= NoPointX;

gear^.Kind := Kind;

gear^.State:= State;

gear^.Active:= true;

gear^.dX:= dX;

gear^.dY:= dY;

gear^.doStep:= doStepHandlers[Kind];

gear^.CollisionIndex:= -1;

gear^.Timer:= Timer;

gear^.FlightTime:= 0;

gear^.uid:= GCounter;

gear^.SoundChannel:= -1;

gear^.ImpactSound:= sndNone;

gear^.nImpactSounds:= 0;

gear^.Density:= _1;

// Define ammo association, if any.

gear^.AmmoType:= GearKindAmmoTypeMap[Kind];

gear^.CollisionMask:= $FFFF;

gear^.Power:= 0;

if CurrentHedgehog <> nil then gear^.Hedgehog:= CurrentHedgehog;

if Ammoz[Gear^.AmmoType].Ammo.Propz and ammoprop_NeedTarget <> 0 then

    gear^.Z:= cHHZ+1

else gear^.Z:= cUsualZ;

case Kind of

     gtGrenade,

     gtClusterBomb,

     gtGasBomb: begin

                gear^.ImpactSound:= sndGrenadeImpact;

                gear^.nImpactSounds:= 1;

                gear^.AdvBounce:= 1;

                gear^.Radius:= 5;

                gear^.Elasticity:= _0_8;

                gear^.Friction:= _0_8;

                gear^.Density:= _1_5;

                gear^.RenderTimer:= true;

                if gear^.Timer = 0 then

                    gear^.Timer:= 3000

                end;

  gtWatermelon: begin

                gear^.ImpactSound:= sndMelonImpact;

                gear^.nImpactSounds:= 1;

                gear^.AdvBounce:= 1;

                gear^.Radius:= 6;

                gear^.Elasticity:= _0_8;

                gear^.Friction:= _0_995;

                gear^.Density:= _2;

                gear^.RenderTimer:= true;

                if gear^.Timer = 0 then

                    gear^.Timer:= 3000

                end;

  gtMelonPiece: begin

                gear^.Density:= _2;

                end;

    gtHedgehog: begin

                gear^.AdvBounce:= 1;

                gear^.Radius:= cHHRadius;

                gear^.Elasticity:= _0_35;

                gear^.Friction:= _0_999;

                gear^.Angle:= cMaxAngle div 2;

                gear^.Density:= _3;

                gear^.Z:= cHHZ;

                if (GameFlags and gfAISurvival) <> 0 then

                    if gear^.Hedgehog^.BotLevel > 0 then

                        gear^.Hedgehog^.Effects[heResurrectable] := 1;

                end;

       gtShell: begin

                gear^.Radius:= 4;

                gear^.Density:= _1;

                end;

       gtSnowball: begin

                gear^.ImpactSound:= sndMudballImpact;

                gear^.nImpactSounds:= 1;

                gear^.Radius:= 4;

                gear^.Elasticity:= _1;

                gear^.Friction:= _1;

                gear^.Density:= _0_5;

                end;

     gtFlake: begin

                with Gear^ do

                    begin

                    Pos:= 0;

                    Radius:= 1;

                    DirAngle:= random(360);

                    if State and gstTmpFlag = 0 then

                        begin

                        dx.isNegative:= GetRandom(2) = 0;

                        dx.QWordValue:= GetRandom(100000000);

                        dy.isNegative:= false;

                        dy.QWordValue:= GetRandom(70000000);

                        if GetRandom(2) = 0 then

                            dx := -dx

                        end;

                    State:= State or gstInvisible;

                    Health:= random(vobFrameTicks);

                    Timer:= random(vobFramesCount);

                    Angle:= (random(2) * 2 - 1) * (1 + random(10000)) * vobVelocity

                    end

                end;

       gtGrave: begin

                gear^.ImpactSound:= sndGraveImpact;

                gear^.nImpactSounds:= 1;

                gear^.Radius:= 10;

                gear^.Elasticity:= _0_6;

                end;

         gtBee: begin

                gear^.Radius:= 5;

                gear^.Timer:= 500;

                gear^.RenderTimer:= true;

                gear^.Elasticity:= _0_9;

                gear^.Tag:= 0;

                end;

   gtSeduction: begin

                gear^.Radius:= 250;

                end;

 gtShotgunShot: begin

                gear^.Timer:= 900;

                gear^.Radius:= 2

                end;

  gtPickHammer: begin

                gear^.Radius:= 10;

                gear^.Timer:= 4000

                end;

   gtHammerHit: begin

                gear^.Radius:= 8;

                gear^.Timer:= 125

                end;

        gtRope: begin

                gear^.Radius:= 3;

                gear^.Friction:= _450 * _0_01 * cRopePercent;

                RopePoints.Count:= 0;

                end;

        gtMine: begin

                gear^.ImpactSound:= sndMineImpact;

                gear^.nImpactSounds:= 1;

                gear^.Health:= 10;

                gear^.State:= gear^.State or gstMoving;

                gear^.Radius:= 2;

                gear^.Elasticity:= _0_55;

                gear^.Friction:= _0_995;

                gear^.Density:= _0_9;

                if cMinesTime < 0 then

                    gear^.Timer:= getrandom(51)*100

                else

                    gear^.Timer:= cMinesTime;

                end;

       gtSMine: begin

                gear^.Health:= 10;

                gear^.State:= gear^.State or gstMoving;

                gear^.Radius:= 2;

                gear^.Elasticity:= _0_55;

                gear^.Friction:= _0_995;

                gear^.Density:= _0_9;

                gear^.Timer:= 500;

                end;

        gtCase: begin

                gear^.ImpactSound:= sndGraveImpact;

                gear^.nImpactSounds:= 1;

                gear^.Radius:= 16;

                gear^.Elasticity:= _0_3;

                gear^.Timer:= 500

                end;

  gtExplosives: begin

                gear^.ImpactSound:= sndGrenadeImpact;

                gear^.nImpactSounds:= 1;

                gear^.Radius:= 16;

                gear^.Elasticity:= _0_4;

                gear^.Friction:= _0_995;

                gear^.Density:= _6;

                gear^.Health:= cBarrelHealth;

                gear^.Z:= cHHZ-1

                end;

  gtDEagleShot: begin

                gear^.Radius:= 1;

                gear^.Health:= 50

                end;

  gtSniperRifleShot: begin

                gear^.Radius:= 1;

                gear^.Health:= 50

                end;

    gtDynamite: begin

                gear^.Radius:= 3;

                gear^.Elasticity:= _0_55;

                gear^.Friction:= _0_03;

                gear^.Density:= _2;

                gear^.Timer:= 5000;

                end;

     gtCluster: begin

                gear^.Radius:= 2;

                gear^.Density:= _1_5;

                gear^.RenderTimer:= true

                end;

      gtShover: gear^.Radius:= 20;

       gtFlame: begin

                gear^.Tag:= GetRandom(32);

                gear^.Radius:= 1;

                gear^.Health:= 5;

                gear^.Density:= _1;

                if (gear^.dY.QWordValue = 0) and (gear^.dX.QWordValue = 0) then

                    begin

                    gear^.dY:= (getrandomf - _0_8) * _0_03;

                    gear^.dX:= (getrandomf - _0_5) * _0_4

                    end

                end;

   gtFirePunch: begin

                gear^.Radius:= 15;

                gear^.Tag:= Y

                end;

     gtAirBomb: begin

                gear^.Radius:= 5;

                gear^.Density:= _2;

                end;

   gtBlowTorch: begin

                gear^.Radius:= cHHRadius + cBlowTorchC;

                gear^.Timer:= 7500

                end;

    gtSwitcher: begin

                gear^.Z:= cCurrHHZ

                end;

      gtTarget: begin

                gear^.ImpactSound:= sndGrenadeImpact;

                gear^.nImpactSounds:= 1;

                gear^.Radius:= 10;

                gear^.Elasticity:= _0_3;

                gear^.Timer:= 0

                end;

      gtTardis: begin

                gear^.Timer:= 0;

                gear^.Pos:= 1;

                gear^.Z:= cCurrHHZ+1;

                end;

      gtMortar: begin

                gear^.Radius:= 4;

                gear^.Elasticity:= _0_2;

                gear^.Friction:= _0_08;

                gear^.Density:= _1;

                end;

        gtWhip: gear^.Radius:= 20;

      gtHammer: gear^.Radius:= 20;

    gtKamikaze: begin

                gear^.Health:= 2048;

                gear^.Radius:= 20

                end;

        gtCake: begin

                gear^.Health:= 2048;

                gear^.Radius:= 7;

                gear^.Z:= cOnHHZ;

                gear^.RenderTimer:= true;

                gear^.DirAngle:= -90 * hwSign(Gear^.dX);

                if not dX.isNegative then

                    gear^.Angle:= 1

                else

                    gear^.Angle:= 3

                end;

 gtHellishBomb: begin

                gear^.ImpactSound:= sndHellishImpact1;

                gear^.nImpactSounds:= 4;

                gear^.AdvBounce:= 1;

                gear^.Radius:= 4;

                gear^.Elasticity:= _0_5;

                gear^.Friction:= _0_96;

                gear^.Density:= _1_5;

                gear^.RenderTimer:= true;

                gear^.Timer:= 5000

                end;

       gtDrill: begin

                if gear^.Timer = 0 then

                    gear^.Timer:= 5000;

                // Tag for drill strike. if 1 then first impact occured already

                gear^.Tag := 0;

                gear^.Radius:= 4;

                gear^.Density:= _1;

                end;

        gtBall: begin

                gear^.ImpactSound:= sndGrenadeImpact;

                gear^.nImpactSounds:= 1;

                gear^.AdvBounce:= 1;

                gear^.Radius:= 5;

                gear^.Tag:= random(8);

                gear^.Timer:= 5000;

                gear^.Elasticity:= _0_7;

                gear^.Friction:= _0_995;

                gear^.Density:= _1_5;

                end;

     gtBallgun: begin

                gear^.Timer:= 5001;

                end;

     gtRCPlane: begin

                gear^.Timer:= 15000;

                gear^.Health:= 3;

                gear^.Radius:= 8

                end;

     gtJetpack: begin

                gear^.Health:= 2000;

                gear^.Damage:= 100

                end;

     gtMolotov: begin

                gear^.Radius:= 6;

                gear^.Density:= _2;

                end;

       gtBirdy: begin

                gear^.Radius:= 16; // todo: check

                gear^.Timer:= 0;

                gear^.Health := 2000;

                gear^.FlightTime := 2;

                end;

         gtEgg: begin

                gear^.Radius:= 4;

                gear^.Elasticity:= _0_6;

                gear^.Friction:= _0_96;

                gear^.Density:= _1;

                if gear^.Timer = 0 then

                    gear^.Timer:= 3000

                end;

      gtPortal: begin

                gear^.ImpactSound:= sndMelonImpact;

                gear^.nImpactSounds:= 1;

                gear^.AdvBounce:= 0;

                gear^.Radius:= 17;

                // set color

                gear^.Tag:= 2 * gear^.Timer;

                gear^.Timer:= 15000;

                gear^.RenderTimer:= false;

                gear^.Health:= 100;

                end;

       gtPiano: begin

                gear^.Radius:= 32;

                gear^.Density:= _50;

                end;

 gtSineGunShot: begin

                gear^.Radius:= 5;

                gear^.Health:= 6000;

                end;

gtFlamethrower: begin

                gear^.Tag:= 10;

                gear^.Timer:= 10;

                gear^.Health:= 500;

                gear^.Damage:= 100;

                end;

     gtLandGun: begin

                gear^.Tag:= 10;

                gear^.Timer:= 10;

                gear^.Health:= 1000;

                gear^.Damage:= 100;

                end;

 gtPoisonCloud: begin

                gear^.Timer:= 5000;

                gear^.dY:= int2hwfloat(-4 + longint(getRandom(8))) / 1000;

                end;

 gtResurrector: begin

                gear^.Radius := 100;

                gear^.Tag := 0

                end;

     gtWaterUp: begin

                gear^.Tag := 47;

                end;

  gtNapalmBomb: begin

                gear^.Timer:= 1000;

                gear^.Radius:= 5;

                gear^.Density:= _1_5;

                end;

   gtStructure: begin

                gear^.Elasticity:= _0_55;

                gear^.Friction:= _0_995;

                gear^.Density:= _0_9;

                gear^.Radius:= 13;

                gear^.Health:= 200;

                gear^.Timer:= 0;

                gear^.Tag:= TotalRounds + 3;

                gear^.Pos:= 1;

                end;

      gtIceGun: gear^.Health:= 1000;

    end;

InsertGearToList(gear);

AddGear:= gear;

ScriptCall('onGearAdd', gear^.uid);

end;

procedure DeleteGear(Gear: PGear);

var team: PTeam;

    t,i: Longword;

    k: boolean;

begin

ScriptCall('onGearDelete', gear^.uid);

DeleteCI(Gear);

FreeTexture(Gear^.Tex);

Gear^.Tex:= nil;

// make sure that portals have their link removed before deletion

if (Gear^.Kind = gtPortal) then

    begin

    if (Gear^.LinkedGear <> nil) then

        if (Gear^.LinkedGear^.LinkedGear = Gear) then

            Gear^.LinkedGear^.LinkedGear:= nil;

    end

else if Gear^.Kind = gtHedgehog then

    (*

    This behaviour dates back to revision 4, and I accidentally encountered it with TARDIS.  I don't think it must apply to any modern weapon, since if it was actually hit, the best the gear could do would be to destroy itself immediately, and you'd still end up with two graves.  I believe it should be removed

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

        begin