(*

 * Hedgewars, a worms-like game

 * Copyright (c) 2004-2007 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

 *)

unit uWorld;

interface

uses SDLh, uGears, uConsts, uFloat;

{$INCLUDE options.inc}

const WorldDx: LongInt = -512;

      WorldDy: LongInt = -256;

procedure InitWorld;

procedure DrawWorld(Lag: LongInt; Surface: PSDL_Surface);

procedure AddCaption(s: string; Color: Longword; Group: TCapGroup);

{$IFDEF COUNTTICKS}

var cntTicks: LongWord;

{$ENDIF}

var FollowGear: PGear = nil;

    WindBarWidth: LongInt = 0;

    bShowAmmoMenu: boolean = false;

    bSelected: boolean = false;

    bShowFinger: boolean = false;

    Frames: Longword = 0;

implementation

uses uStore, uMisc, uTeams, uIO, uConsole, uKeys, uLocale, uSound, GL, uAmmos;

const FPS: Longword = 0;

      CountTicks: Longword = 0;

      SoundTimerTicks: Longword = 0;

      prevPoint: TPoint = (X: 0; Y: 0);

type TCaptionStr = record

                   Tex: PTexture;

                   EndTime: LongWord;

                   end;

var cWaterSprCount: LongInt;

    Captions: array[TCapGroup] of TCaptionStr;

    AMxLeft, AMxCurr, SlotsNum: LongInt;

    tmpSurface: PSDL_Surface;

    fpsTexture: PTexture = nil;

procedure InitWorld;

begin

cWaterSprCount:= 1 + cScreenWidth div (SpritesData[sprWater].Width);

cGearScrEdgesDist:= Min(cScreenWidth div 2 - 100, cScreenHeight div 2 - 50);

SDL_WarpMouse(cScreenWidth div 2, cScreenHeight div 2);

prevPoint.X:= cScreenWidth div 2;

prevPoint.Y:= cScreenHeight div 2;

WorldDx:=  - 1024 + cScreenWidth div 2;

WorldDy:=  - 512 + cScreenHeight div 2;

AMxLeft:= cScreenWidth - 210;

AMxCurr:= cScreenWidth

end;

procedure ShowAmmoMenu(Surface: PSDL_Surface);

const MENUSPEED = 15;

var x, y, i, t: LongInt;

    Slot, Pos: LongInt;

begin

if (TurnTimeLeft = 0) or KbdKeyPressed then bShowAmmoMenu:= false;

if bShowAmmoMenu then

   begin

   if AMxCurr = cScreenWidth then prevPoint.X:= 0;

   if AMxCurr > AMxLeft then dec(AMxCurr, MENUSPEED);

   end else

   begin

   if AMxCurr = AMxLeft then

      begin

      CursorPoint.X:= cScreenWidth div 2;

      CursorPoint.Y:= cScreenHeight div 2;

      prevPoint:= CursorPoint;

      SDL_WarpMouse(CursorPoint.X, CursorPoint.Y)

      end;

   if AMxCurr < cScreenWidth then inc(AMxCurr, MENUSPEED);

   end;

if CurrentTeam = nil then exit;

Slot:= 0;

Pos:= -1;

with CurrentHedgehog^ do

     begin

     if Ammo = nil then exit;

     SlotsNum:= 0;

     x:= AMxCurr;

     y:= cScreenHeight - 40;

     dec(y);

     DrawSprite(sprAMBorders, x, y, 0, Surface);

     dec(y);

     DrawSprite(sprAMBorders, x, y, 1, Surface);

     dec(y, 33);

     DrawSprite(sprAMSlotName, x, y, 0, Surface);

     for i:= cMaxSlotIndex downto 0 do

         if Ammo^[i, 0].Count > 0 then

            begin

            if (CursorPoint.Y >= y - 33) and (CursorPoint.Y < y) then Slot:= i;

            dec(y, 33);

            inc(SlotsNum);

            DrawSprite(sprAMSlot, x, y, 0, Surface);

            DrawSprite(sprAMSlotKeys, x + 2, y + 1, i, Surface);

            t:= 0;

            while (t <= cMaxSlotAmmoIndex) and (Ammo^[i, t].Count > 0) do

                  begin

                  DrawSprite(sprAMAmmos, x + t * 33 + 35, y + 1, LongInt(Ammo^[i, t].AmmoType), Surface);

                  if (Slot = i) and (CursorPoint.X >= x + t * 33 + 35) and (CursorPoint.X < x + t * 33 + 68) then

                     begin

                     DrawSprite(sprAMSelection, x + t * 33 + 35, y + 1, 0, Surface);

                     Pos:= t;

                     end;

                  inc(t)

                  end

            end;

     dec(y, 1);

     DrawSprite(sprAMBorders, x, y, 0, Surface);

     if (Pos >= 0) then

        if Ammo^[Slot, Pos].Count > 0 then

           begin

           DXOutText(AMxCurr + 10, cScreenHeight - 68, fnt16, trAmmo[Ammoz[Ammo^[Slot, Pos].AmmoType].NameId], Surface);

           if Ammo^[Slot, Pos].Count < 10 then

              DXOutText(AMxCurr + 175, cScreenHeight - 68, fnt16, chr(Ammo^[Slot, Pos].Count + 48) + 'x', Surface);

           if bSelected then

              begin

              bShowAmmoMenu:= false;

              SetWeapon(Ammo^[Slot, Pos].AmmoType);

              bSelected:= false;

              exit

              end;

           end;

     end;

bSelected:= false;

if AMxLeft = AMxCurr then DrawSprite(sprArrow, CursorPoint.X, CursorPoint.Y, (RealTicks shr 6) mod 8, Surface)

end;

procedure MoveCamera; forward;

procedure DrawWorld(Lag: LongInt; Surface: PSDL_Surface);

var i, t: LongInt;

    r: TSDL_Rect;

    tdx, tdy: Double;

    grp: TCapGroup;

    s: string[15];

    procedure DrawRepeated(spr: TSprite; Shift: LongInt);

    var i, w: LongInt;

    begin

    w:= SpritesData[spr].Width;

    i:= Shift mod w;

    if i > 0 then dec(i, w);

    repeat

      DrawSprite(spr, i, WorldDy + 1024 - SpritesData[spr].Height, 0, Surface);

      inc(i, w)

    until i > cScreenWidth

    end;

begin

// Sky

glClear(GL_COLOR_BUFFER_BIT);

glEnable(GL_BLEND);

glEnable(GL_TEXTURE_2D);

//glPushMatrix;

//glScalef(1.0, 1.0, 1.0);

if not isPaused then MoveCamera;

// background

DrawRepeated(sprSky, WorldDx * 3 div 8);

DrawRepeated(sprHorizont, WorldDx * 3 div 5);

// Waves

{$WARNINGS OFF}

for i:= -1 to cWaterSprCount do DrawSprite(sprWater,  i * 256  + ((WorldDx + (RealTicks shr 6)      ) and $FF), cWaterLine + WorldDy - 64, 0, Surface);

for i:= -1 to cWaterSprCount do DrawSprite(sprWater,  i * 256  + ((WorldDx - (RealTicks shr 6) + 192) and $FF), cWaterLine + WorldDy - 48, 0, Surface);

{$WARNINGS ON}

DrawLand(WorldDx, WorldDy);

// Water

r.y:= WorldDy + cWaterLine + 32;

if r.y < cScreenHeight then

   begin

   if r.y < 0 then r.y:= 0;

   glDisable(GL_TEXTURE_2D);

   glBegin(GL_QUADS);

    glVertex2i(0, r.y);

    glVertex2i(cScreenWidth, r.y);

    glVertex2i(cScreenWidth, cScreenHeight);

    glVertex2i(0, cScreenHeight);

   glEnd();

   glColor4f(1, 1, 1, 1); // disable coloring

   glEnable(GL_TEXTURE_2D)

   end;

DrawGears(Surface);

// Waves

{$WARNINGS OFF}

for i:= -1 to cWaterSprCount do DrawSprite(sprWater,  i * 256  + ((WorldDx + (RealTicks shr 6) +  64) and $FF), cWaterLine + WorldDy - 32, 0, Surface);

for i:= -1 to cWaterSprCount do DrawSprite(sprWater,  i * 256  + ((WorldDx - (RealTicks shr 6) + 128) and $FF), cWaterLine + WorldDy - 16, 0, Surface);

for i:= -1 to cWaterSprCount do DrawSprite(sprWater,  i * 256  + ((WorldDx + (RealTicks shr 6)      ) and $FF), cWaterLine + WorldDy     , 0, Surface);

{$WARNINGS ON}

// Turn time

if TurnTimeLeft <> 0 then

   begin

   i:= Succ(Pred(TurnTimeLeft) div 1000);

   if i>99 then t:= 112

      else if i>9 then t:= 96

                  else t:= 80;

   DrawSprite(sprFrame, t, cScreenHeight - 48, 1, Surface);

   while i > 0 do

         begin

         dec(t, 32);

         DrawSprite(sprBigDigit, t, cScreenHeight - 48, i mod 10, Surface);

         i:= i div 10

         end;

   DrawSprite(sprFrame, t - 4, cScreenHeight - 48, 0, Surface);

   end;

// Attack bar

if CurrentTeam <> nil then

   case AttackBar of

(*        1: begin

           r:= StuffPoz[sPowerBar];

           {$WARNINGS OFF}

           r.w:= (CurrentHedgehog^.Gear^.Power * 256) div cPowerDivisor;

           {$WARNINGS ON}

           DrawSpriteFromRect(r, cScreenWidth - 272, cScreenHeight - 48, 16, 0, Surface);

           end;

*)        2: with CurrentHedgehog^ do

                begin

                tdx:= hwSign(Gear^.dX) * Sin(Gear^.Angle * Pi / cMaxAngle);

                tdy:= - Cos(Gear^.Angle * Pi / cMaxAngle);

                for i:= (Gear^.Power * 24) div cPowerDivisor downto 0 do

                    DrawSprite(sprPower, hwRound(Gear^.X) + system.round(WorldDx + tdx * (24 + i * 2)) - 16,

                                         hwRound(Gear^.Y) + system.round(WorldDy + tdy * (24 + i * 2)) - 12,

                                         i, Surface)

                end

        end;

// Target

if TargetPoint.X <> NoPointX then DrawSprite(sprTargetP, TargetPoint.X + WorldDx - 16, TargetPoint.Y + WorldDy - 16, 0, Surface);

//glPopMatrix;

// Captions

i:= 8;

for grp:= Low(TCapGroup) to High(TCapGroup) do

    with Captions[grp] do

         if Tex <> nil then

            begin

            DrawCentered(cScreenWidth div 2, i + cConsoleYAdd, Tex);

            inc(i, Tex^.h + 2);

            if EndTime <= RealTicks then

               begin

               FreeTexture(Tex);

               Tex:= nil;

               EndTime:= 0

               end

            end;

// Teams Healths

for t:= 0 to Pred(TeamsCount) do

   with TeamsArray[t]^ do

      begin

      DrawTexture(cScreenWidth div 2 - NameTagTex^.w - 3, DrawHealthY, NameTagTex);

      r.x:= 0;

      r.y:= 0;

      r.w:= 2 + TeamHealthBarWidth;

      r.h:= HealthTex^.h;

      DrawFromRect(cScreenWidth div 2,

                        DrawHealthY,

                        @r, HealthTex, Surface);

      inc(r.x, cTeamHealthWidth + 2);

      r.w:= 3;

      DrawFromRect(cScreenWidth div 2 + TeamHealthBarWidth + 2,

                        DrawHealthY,

                        @r, HealthTex, Surface);

      end;

// Lag alert

if isInLag then DrawSprite(sprLag, 32, 32  + cConsoleYAdd, (RealTicks shr 7) mod 12, Surface);

// Wind bar

DrawSprite(sprWindBar, cScreenWidth - 180, cScreenHeight - 30, 0, Surface);

if WindBarWidth > 0 then

   begin

   {$WARNINGS OFF}

   r.x:= 8 - (RealTicks shr 6) mod 8;

   {$WARNINGS ON}

   r.y:= 0;

   r.w:= WindBarWidth;

   r.h:= 13;

   DrawSpriteFromRect(sprWindR, r, cScreenWidth - 103, cScreenHeight - 28, 13, 0, Surface);

   end else

 if WindBarWidth < 0 then

   begin

   {$WARNINGS OFF}

   r.x:= (WindBarWidth + RealTicks shr 6) mod 8;

   {$WARNINGS ON}

   r.y:= 0;

   r.w:= - WindBarWidth;

   r.h:= 13;

   DrawSpriteFromRect(sprWindL, r, cScreenWidth - 106 + WindBarWidth, cScreenHeight - 28, 13, 0, Surface);

   end;

// AmmoMenu

if (AMxCurr < cScreenWidth) or bShowAmmoMenu then ShowAmmoMenu(Surface);

// Cursor

if isCursorVisible then

   begin

   if not bShowAmmoMenu then

     with CurrentHedgehog^ do

       if (Gear^.State and gstHHChooseTarget) <> 0 then

         begin

         i:= Ammo^[CurSlot, CurAmmo].Pos;

         with Ammoz[Ammo^[CurSlot, CurAmmo].AmmoType] do

           if PosCount > 1 then

              DrawSprite(PosSprite, CursorPoint.X - SpritesData[PosSprite].Width div 2,

                                    CursorPoint.Y - SpritesData[PosSprite].Height div 2,

                                    i, Surface);

         end;

   DrawSprite(sprArrow, CursorPoint.X, CursorPoint.Y, (RealTicks shr 6) mod 8, Surface)

   end;

if isPaused then DrawCentered(cScreenWidth div 2, cScreenHeight div 2, PauseTexture);

inc(Frames);

if cShowFPS then

   begin

   inc(CountTicks, Lag);

   if CountTicks >= 1000 then

      begin

      FPS:= Frames;

      Frames:= 0;

      CountTicks:= 0;

      s:= inttostr(FPS) + ' fps';

      if fpsTexture <> nil then FreeTexture(fpsTexture);

      tmpSurface:= TTF_RenderUTF8_Blended(Fontz[fnt16].Handle, Str2PChar(s), $FFFFFF);

      fpsTexture:= Surface2Tex(tmpSurface);

      SDL_FreeSurface(tmpSurface)

      end;

   if fpsTexture <> nil then

      begin

      r.x:= 0;

      r.y:= 0;

      r.w:= fpsTexture^.w;

      r.h:= fpsTexture^.h;

      DrawFromRect(cScreenWidth - 50, 10, @r, fpsTexture, Surface);

      end

   end;

inc(SoundTimerTicks, Lag);

if SoundTimerTicks >= 50 then

   begin

   SoundTimerTicks:= 0;

   if cVolumeDelta <> 0 then

      begin

      str(ChangeVolume(cVolumeDelta), s);

      AddCaption(Format(trmsg[sidVolume], s), $FFFFFF, capgrpVolume)

      end

   end;

glDisable(GL_TEXTURE_2D);

glDisable(GL_BLEND)

end;

procedure AddCaption(s: string; Color: Longword; Group: TCapGroup);

begin

if Group in [capgrpGameState, capgrpNetSay] then WriteLnToConsole(s);

if Captions[Group].Tex <> nil then FreeTexture(Captions[Group].Tex);

Captions[Group].Tex:= RenderStringTex(s, Color, fntBig);

Captions[Group].EndTime:= RealTicks + 1500

end;

procedure MoveCamera;

const PrevSentPointTime: LongWord = 0;

var EdgesDist: LongInt;

begin

if (not (CurrentTeam^.ExtDriven and isCursorVisible))

   and cHasFocus then SDL_GetMouseState(@CursorPoint.X, @CursorPoint.Y);

if (FollowGear <> nil) then

   if abs(CursorPoint.X - prevPoint.X) + abs(CursorPoint.Y - prevpoint.Y) > 4 then

      begin

      FollowGear:= nil;

      exit

      end

      else begin

      CursorPoint.x:= (prevPoint.x * 7 + (hwRound(FollowGear^.X) + hwSign(FollowGear^.dX) * 100) + WorldDx) div 8;

      CursorPoint.y:= (prevPoint.y * 7 + (hwRound(FollowGear^.Y) + WorldDy)) div 8

      end;

if ((CursorPoint.X = prevPoint.X)and(CursorPoint.Y = prevpoint.Y)) then exit;

if AMxCurr < cScreenWidth then

   begin

   if CursorPoint.X < AMxCurr + 35 then CursorPoint.X:= AMxCurr + 35;

   if CursorPoint.X > AMxCurr + 200 then CursorPoint.X:= AMxCurr + 200;

   if CursorPoint.Y < cScreenHeight - 75 - SlotsNum * 33 then CursorPoint.Y:= cScreenHeight - 75 - SlotsNum * 33;

   if CursorPoint.Y > cScreenHeight - 76 then CursorPoint.Y:= cScreenHeight - 76;

   prevPoint:= CursorPoint;

   if cHasFocus then SDL_WarpMouse(CursorPoint.X, CursorPoint.Y);

   exit

   end;

if isCursorVisible then

   begin

   if (not CurrentTeam^.ExtDriven)and(GameTicks >= PrevSentPointTime + cSendCursorPosTime) then

      begin

      SendIPCXY('P', CursorPoint.X - WorldDx, CursorPoint.Y - WorldDy);

      PrevSentPointTime:= GameTicks

      end;

   end;

if isCursorVisible or (FollowGear <> nil) then

   begin

   if isCursorVisible then EdgesDist:= cCursorEdgesDist

                      else EdgesDist:= cGearScrEdgesDist;

   if CursorPoint.X < EdgesDist then

         begin

         WorldDx:= WorldDx - CursorPoint.X + EdgesDist;

         CursorPoint.X:= EdgesDist

         end else

      if CursorPoint.X > cScreenWidth - EdgesDist then

         begin

         WorldDx:= WorldDx - CursorPoint.X + cScreenWidth - EdgesDist;

         CursorPoint.X:= cScreenWidth - EdgesDist

         end;

      if CursorPoint.Y < EdgesDist then

         begin

         WorldDy:= WorldDy - CursorPoint.Y + EdgesDist;

         CursorPoint.Y:= EdgesDist

         end else

      if CursorPoint.Y > cScreenHeight - EdgesDist then

         begin

         WorldDy:= WorldDy - CursorPoint.Y + cScreenHeight - EdgesDist;

         CursorPoint.Y:= cScreenHeight - EdgesDist

         end;

   end else

   if cHasFocus then

      begin

      WorldDx:= WorldDx - CursorPoint.X + prevPoint.X;

      WorldDy:= WorldDy - CursorPoint.Y + prevPoint.Y;

      CursorPoint.X:= (cScreenWidth  shr 1);

      CursorPoint.Y:= (cScreenHeight shr 1);

      end;

if cHasFocus then SDL_WarpMouse(CursorPoint.X, CursorPoint.Y);

prevPoint:= CursorPoint;

if WorldDy < cScreenHeight - cWaterLine - cVisibleWater then WorldDy:= cScreenHeight - cWaterLine - cVisibleWater;

if WorldDy >  2048 then WorldDy:=  2048;

if WorldDx < -2048 then WorldDx:= -2048;

if WorldDx > cScreenWidth then WorldDx:=  cScreenWidth;