1 (*

     2  * Hedgewars, a worms-like game

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

     4  *

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

     6  *

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

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

     9  * with the Software without restriction, including without limitation the

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

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

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

    13  *

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

    15  *    this list of conditions and the following disclaimer.

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

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

    18  *    and/or other materials provided with the distribution.

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

    20  *    derived from this software without specific prior written permission.

    21  *

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

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

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

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

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

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

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

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

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

    31  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

    32  *)

    33 

    34 unit uWorld;

    35 interface

    36 uses SDLh, uGears;

    37 {$INCLUDE options.inc}

    38 const WorldDx: integer = -512;

    39       WorldDy: integer = -256;

    40 

    41 procedure InitWorld;

    42 procedure DrawWorld(Lag: integer; Surface: PSDL_Surface);

    43 procedure AddCaption(s: shortstring; Color, Group: LongWord);

    44 procedure MoveWorld;

    45 procedure AdjustMPoint;

    46 

    47 {$IFDEF COUNTTICKS}

    48 var cntTicks: LongWord;

    49 {$ENDIF}

    50 var FollowGear: PGear = nil;

    51 

    52 implementation

    53 uses uStore, uMisc, uConsts, uTeams, uIO;

    54 const RealTicks: Longword = 0;

    55       Frames: Longword = 0;

    56       FPS: Longword = 0;

    57       CountTicks: Longword = 0;

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

    59       

    60 type TCaptionStr = record

    61                    r: TSDL_Rect;

    62                    StorePos,

    63                    Group,

    64                    EndTime: LongWord;

    65                    end;

    66 

    67 var cWaterSprCount: integer;

    68     Captions: array[0..Pred(cMaxCaptions)] of TCaptionStr;

    69 

    70 procedure InitWorld;

    71 begin

    72 cLandYShift:= cWaterLine + 64;

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

    74 end;

    75 

    76 procedure DrawWorld(Lag: integer; Surface: PSDL_Surface);

    77 var i, t: integer;

    78     r: TSDL_Rect;

    79     team: PTeam;

    80 begin

    81 // синее небо

    82 inc(RealTicks, Lag);

    83 r.h:= WorldDy;

    84 if r.h > 0 then

    85    begin

    86    if r.h > cScreenHeight then r.h:= cScreenHeight;

    87    r.x:= 0;

    88    r.y:= 0;

    89    r.w:= cScreenWidth;

    90    SDL_FillRect(Surface, @r, cSkyColor)

    91    end;

    92 // задний фон

    93 for i:= 0 to (cScreenWidth shr 6) do

    94     DrawGear(sSky, i*64, WorldDy, Surface);

    95 

    96 for i:= -1 to 3 do // горизонт

    97     DrawGear(sHorizont, i * 512 + (((WorldDx * 3) div 5) and $1FF), cWaterLine - 256 + WorldDy, Surface);

    98 

    99 // волны

   100 {$WARNINGS OFF}

   101 for i:= -1 to cWaterSprCount do DrawSprite(sprWater,  i * 256  + ((WorldDx + (RealTicks shr 6)      ) and $FF), cWaterLine + WorldDy - 40, (((GameTicks shr 7) + 2) mod 12), Surface);

   102 for i:= -1 to cWaterSprCount do DrawSprite(sprWater,  i * 256  + ((WorldDx - (RealTicks shr 6) + 192) and $FF), cWaterLine + WorldDy - 30, (((GameTicks shr 7) + 8) mod 12), Surface);

   103 {$WARNINGS ON}

   104 

   105 // поле

   106 DrawLand(WorldDx, WorldDy, Surface);

   107 // вода

   108 r.y:= WorldDy + cWaterLine + 32;

   109 if r.y < cScreenHeight then

   110    begin

   111    r.h:= cScreenHeight - r.y;

   112    r.x:= 0;

   113    r.w:= cScreenWidth;

   114    SDL_FillRect(Surface, @r, cWaterColor)

   115    end;

   116 

   117 DrawGears(Surface);

   118 

   119 team:= TeamsList;

   120 while team<>nil do

   121       begin

   122       for i:= 0 to 7 do

   123           with team.Hedgehogs[i] do

   124                if Gear<>nil then

   125                   if Gear.State = 0 then

   126                      begin // ёжик не находится под управлением

   127                      DrawCaption( round(Gear.X) + WorldDx,

   128                                   round(Gear.Y) - cHHHalfHeight - 30 + WorldDy,

   129                                   HealthRect, Surface, true);

   130                      DrawCaption( round(Gear.X) + WorldDx,

   131                                   round(Gear.Y) - cHHHalfHeight - 54 + WorldDy,

   132                                   NameRect, Surface);

   133 //                     DrawCaption( round(Gear.X) + WorldDx,

   134 //                                  round(Gear.Y) - Gear.HalfHeight - 60 + WorldDy,

   135 //                                  Team.NameRect, Surface);

   136                      end else // ёжик, которым счас управляем

   137                      begin

   138                      if (Gear.State and (gstMoving or gstAttacked or gstDrowning or gstFalling))=0 then // рисуем прицел и, если бот думает, знак вопроса

   139                         if (Gear.State and gstHHThinking) <> 0 then

   140                            DrawGear(sQuestion, Round(Gear.X)  - 10 + WorldDx, Round(Gear.Y) - cHHHalfHeight - 34 + WorldDy, Surface)

   141                         else

   142                            DrawCaption(Round(Gear.X + Sign(Gear.dX) * Sin(Gear.Angle*pi/cMaxAngle)*60) + WorldDx,

   143                                        Round(Gear.Y - Cos(Gear.Angle*pi/cMaxAngle)*60) + WorldDy - 5,

   144                                        Team.CrossHairRect, Surface)

   145                      end;

   146       team:= team.Next

   147       end;

   148 

   149 // волны

   150 {$WARNINGS OFF}

   151 for i:= -1 to cWaterSprCount do DrawSprite(sprWater,  i * 256  + ((WorldDx + (RealTicks shr 6) +  64) and $FF), cWaterLine + WorldDy - 20, (((GameTicks shr 7) + 4 ) mod 12), Surface);

   152 for i:= -1 to cWaterSprCount do DrawSprite(sprWater,  i * 256  + ((WorldDx - (RealTicks shr 6) + 128) and $FF), cWaterLine + WorldDy - 10, (((GameTicks shr 7) + 10) mod 12), Surface);

   153 for i:= -1 to cWaterSprCount do DrawSprite(sprWater,  i * 256  + ((WorldDx + (RealTicks shr 6)      ) and $FF), cWaterLine + WorldDy     , (((GameTicks shr 7) + 6 ) mod 12), Surface);

   154 {$WARNINGS ON}

   155 

   156 if TurnTimeLeft <> 0 then

   157    begin

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

   159    if i>99 then t:= 112

   160       else if i>9 then t:= 96

   161                   else t:= 80;

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

   163    while i > 0 do

   164          begin

   165          dec(t, 32);

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

   167          i:= i div 10

   168          end;

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

   170    end;

   171 if CurrentTeam <> nil then

   172    case AttackBar of

   173         1: begin

   174            r:= StuffPoz[sPowerBar];

   175            {$WARNINGS OFF}

   176            r.w:= (CurrentTeam.Hedgehogs[CurrentTeam.CurrHedgehog].Gear.Power * 256) div cPowerDivisor;

   177            {$WARNINGS ON}

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

   179            end;

   180         end;

   181 

   182 // Указатель на цель

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

   184 

   185 // Captions

   186 i:= 0;

   187 while (i < cMaxCaptions) do

   188     begin

   189     with Captions[i] do

   190          if EndTime > 0 then DrawCaption(cScreenWidth div 2, 8 + i * 32 + cConsoleYAdd, r, Surface, true);

   191     inc(i)

   192     end;

   193 while (Captions[0].EndTime > 0) and (Captions[0].EndTime <= RealTicks) do

   194     begin

   195     for i:= 1 to Pred(cMaxCaptions) do

   196         Captions[Pred(i)]:= Captions[i];

   197     Captions[Pred(cMaxCaptions)].EndTime:= 0

   198     end;

   199 

   200 // Указание на лаг

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

   202 

   203 // Курсор

   204 if isCursorVisible then DrawSprite(sprArrow, CursorPoint.X, CursorPoint.Y, (RealTicks shr 6) mod 8, Surface);

   205 

   206 {$IFDEF COUNTTICKS}

   207 DXOutText(10, 10, fnt16, inttostr(cntTicks), Surface);

   208 {$ENDIF}

   209 

   210 inc(Frames);

   211 inc(CountTicks, Lag);

   212 if CountTicks >= 1000 then

   213    begin

   214    FPS:= Frames;

   215    Frames:= 0;

   216    CountTicks:= 0;

   217    end;

   218 if cShowFPS then DXOutText(cScreenWidth - 50, 10, fnt16, inttostr(FPS) + ' fps', Surface)

   219 end;

   220 

   221 procedure AddCaption(s: shortstring; Color, Group: LongWord);

   222 var i, t, m, k: LongWord;

   223 begin

   224 i:= 0;

   225 while (i < cMaxCaptions) and (Captions[i].Group <> Group)do inc(i);

   226 if i < cMaxCaptions then

   227    begin

   228    while (i < Pred(cMaxCaptions)) do

   229          begin

   230          Captions[i]:= Captions[Succ(i)];

   231          inc(i)

   232          end;

   233    Captions[Pred(cMaxCaptions)].EndTime:= 0

   234    end;

   235    

   236 if Captions[Pred(cMaxCaptions)].EndTime > 0 then

   237    begin

   238    m:= Pred(cMaxCaptions);

   239    for i:= 1 to m do

   240        Captions[Pred(i)]:= Captions[i];

   241    Captions[m].EndTime:= 0

   242    end else

   243    begin

   244    m:= 0;

   245    while (m < cMaxCaptions)and(Captions[m].EndTime > 0) do inc(m)

   246    end;

   247 

   248 k:= 0;

   249 for i:= 0 to Pred(cMaxCaptions) do

   250     for t:= 0 to Pred(cMaxCaptions) do

   251         if (Captions[t].EndTime > 0)and(Captions[t].StorePos = k) then inc(k);

   252 

   253 Captions[m].r:= RenderString(s, Color, k);

   254 Captions[m].StorePos:= k;

   255 Captions[m].Group:= Group;

   256 Captions[m].EndTime:= RealTicks + 1200

   257 end;

   258 

   259 procedure MoveWorld;

   260 const PrevSentPointTime: LongWord = 0;

   261 var s: string[9];

   262 begin

   263 if not (CurrentTeam.ExtDriven and isCursorVisible) then SDL_GetMouseState(@CursorPoint.X, @CursorPoint.Y);

   264 

   265 if (FollowGear <> nil) then

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

   267       begin

   268       FollowGear:= nil;

   269       AdjustMPoint;

   270       exit

   271       end

   272       else begin

   273       CursorPoint.x:= (CursorPoint.x + (round(FollowGear.X + Sign(FollowGear.dX) * 100) + WorldDx)) div 2;

   274       CursorPoint.y:= (CursorPoint.y + (round(FollowGear.Y) + WorldDy)) div 2

   275       end;

   276 

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

   278 

   279 if isCursorVisible then

   280    begin

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

   282       begin

   283       s[0]:= #9;

   284       s[1]:= 'P';

   285       PInteger(@s[2])^:= CursorPoint.X - WorldDx;

   286       PInteger(@s[6])^:= CursorPoint.Y - WorldDy;

   287       SendIPC(s);

   288       PrevSentPointTime:= GameTicks

   289       end;

   290    end;

   291 if isCursorVisible or (FollowGear <> nil) then

   292    begin

   293    if CursorPoint.X < cScreenEdgesDist then

   294          begin

   295          WorldDx:= WorldDx - CursorPoint.X + cScreenEdgesDist;

   296          CursorPoint.X:= cScreenEdgesDist

   297          end else

   298       if CursorPoint.X > cScreenWidth - cScreenEdgesDist then

   299          begin

   300          WorldDx:= WorldDx - CursorPoint.X + cScreenWidth - cScreenEdgesDist;

   301          CursorPoint.X:= cScreenWidth - cScreenEdgesDist

   302          end;

   303       if CursorPoint.Y < cScreenEdgesDist then

   304          begin

   305          WorldDy:= WorldDy - CursorPoint.Y + cScreenEdgesDist;

   306          CursorPoint.Y:= cScreenEdgesDist

   307          end else

   308       if CursorPoint.Y > cScreenHeight - cScreenEdgesDist then

   309          begin

   310          WorldDy:= WorldDy - CursorPoint.Y + cScreenHeight - cScreenEdgesDist;

   311          CursorPoint.Y:= cScreenHeight - cScreenEdgesDist

   312          end;

   313    end else

   314    begin

   315       WorldDx:= WorldDx - CursorPoint.X + (cScreenWidth  shr 1);

   316       WorldDy:= WorldDy - CursorPoint.Y + (cScreenHeight shr 1);

   317       CursorPoint.X:= (cScreenWidth  shr 1);

   318       CursorPoint.Y:= (cScreenHeight shr 1);

   319    end;

   320 SDL_WarpMouse(CursorPoint.X, CursorPoint.Y);

   321 prevPoint:= CursorPoint;

   322 if WorldDy < cScreenHeight - cLandYShift - cVisibleWater then WorldDy:= cScreenHeight - cLandYShift - cVisibleWater;

   323 if WorldDy >  2048 then WorldDy:=  2048;

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

   325 if WorldDx > cScreenWidth then WorldDx:=  cScreenWidth;

   326 end;

   327 

   328 procedure AdjustMPoint;

   329 begin

   330 prevPoint.x:= cScreenWidth div 2;

   331 prevPoint.y:= cScreenHeight div 2;

   332 SDL_WarpMouse(prevPoint.X, prevPoint.Y);

   333 end;

   334 

   335 initialization

   336 FillChar(Captions, sizeof(Captions), 0)

   337 

   338 end.