hedgewars/uMisc.pas
author unc0rr
Mon, 28 Jan 2008 18:22:35 +0000
changeset 775 23c253aae336
parent 771 86fbe8753a7c
child 780 f45b0e513dfd
permissions -rw-r--r--
- Some optimizations - Rotate grenade sprite using glRotatef (much better result)
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(*
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 * Hedgewars, a worms-like game
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 * Copyright (c) 2004-2007 Andrey Korotaev <unC0Rr@gmail.com>
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 *
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 * This program is free software; you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation; version 2 of the License
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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 *)
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unit uMisc;
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interface
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uses uConsts, SDLh, uFloat, GL;
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{$INCLUDE options.inc}
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var isCursorVisible : boolean = false;
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    isTerminated    : boolean = false;
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    isInLag         : boolean = false;
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    isPaused        : boolean = false;
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    isSoundEnabled  : boolean = true;
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    isSEBackup      : boolean = true;
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    isInMultiShoot  : boolean = false;
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    isSpeed         : boolean = false;
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    GameState     : TGameState = Low(TGameState);
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    GameType      : TGameType = gmtLocal;
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    GameFlags     : Longword = 0;
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    TurnTimeLeft  : Longword = 0;
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    cHedgehogTurnTime: Longword = 45000;
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    cMaxAIThinkTime  : Longword = 9000;
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    cCloudsNumber    : LongInt = 9;
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    cConsoleHeight   : LongInt = 320;
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    cConsoleYAdd     : LongInt = 0;
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    cScreenWidth     : LongInt = 1024;
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    cScreenHeight    : LongInt = 768;
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    cBits            : LongInt = 16;
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    cBitsStr         : string[2] = '16';
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    cTagsMask        : byte = 7;
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    cWaterLine       : LongInt = 1024;
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    cVisibleWater    : LongInt = 128;
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    cGearScrEdgesDist: LongInt = 240;
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    cCursorEdgesDist : LongInt = 40;
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    cTeamHealthWidth : LongInt = 128;
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    cAltDamage       : boolean = true;
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    GameTicks     : LongWord = 0;
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    cSkyColor     : Longword = 0;
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    cWaterColor   : Longword = $FF005ACE;
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    cWhiteColor   : Longword = $FFFFFFFF;
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    cConsoleSplitterColor : Longword = $FFFF0000;
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    cColorNearBlack       : Longword = $FF000010;
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    cExplosionBorderColor : LongWord = $808080;
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    cShowFPS      : boolean = true;
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    cCaseFactor   : Longword = 6;  {0..9}
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    cLandAdditions: Longword = 4;
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    cFullScreen   : boolean = true;
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    cLocaleFName  : shortstring = 'en.txt';
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    cSeed         : shortstring = '';
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    cInitVolume   : LongInt = 128;
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    cVolumeDelta  : LongInt = 0;
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    cTimerInterval   : Longword = 5;
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    cHasFocus     : boolean = true;
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    cInactDelay   : Longword = 1500;
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{$WARNINGS OFF}
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    cAirPlaneSpeed: hwFloat = (isNegative: false; QWordValue:   6012954214); // 1.4
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    cBombsSpeed   : hwFloat = (isNegative: false; QWordValue:    429496729);
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{$WARNINGS ON}
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var
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    cSendEmptyPacketTime : LongWord = 2000;
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    cSendCursorPosTime   : LongWord = 50;
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    ShowCrosshair  : boolean;
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    cDrownSpeed,
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    cMaxWindSpeed,
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    cWindSpeed,
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    cGravity: hwFloat;
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    flagMakeCapture: boolean = false;
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    InitStepsFlags: Longword = 0;
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    RealTicks: Longword = 0;
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    AttackBar: LongInt = 0; // 0 - none, 1 - just bar at the right-down corner, 2 - like in WWP
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function hwSign(r: hwFloat): LongInt;
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function Min(a, b: LongInt): LongInt; 
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function Max(a, b: LongInt): LongInt;
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function rndSign(num: hwFloat): hwFloat;
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procedure OutError(Msg: String; isFatalError: boolean);
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procedure TryDo(Assert: boolean; Msg: string; isFatal: boolean);
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procedure SDLTry(Assert: boolean; isFatal: boolean);
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function IntToStr(n: LongInt): shortstring;
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function FloatToStr(n: hwFloat): shortstring;
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function DxDy2Angle(const _dY, _dX: hwFloat): GLfloat;
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function DxDy2Angle32(const _dY, _dX: hwFloat): LongInt;
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function DxDy2AttackAngle(const _dY, _dX: hwFloat): LongInt;
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procedure AdjustColor(var Color: Longword);
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{$IFDEF DEBUGFILE}
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procedure AddFileLog(s: shortstring);
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function RectToStr(Rect: TSDL_Rect): shortstring;
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{$ENDIF}
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procedure SetKB(n: Longword);
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procedure SendKB;
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procedure SetLittle(var r: hwFloat);
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procedure SendStat(sit: TStatInfoType; s: shortstring);
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function  Str2PChar(const s: shortstring): PChar;
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function  Surface2Tex(surf: PSDL_Surface): PTexture;
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procedure FreeTexture(tex: PTexture);
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var CursorPoint: TPoint;
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    TargetPoint: TPoint = (X: NoPointX; Y: 0);
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implementation
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uses uConsole, uStore, uIO, Math, uRandom, GLU;
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var KBnum: Longword = 0;
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{$IFDEF DEBUGFILE}
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var f: textfile;
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{$ENDIF}
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function hwSign(r: hwFloat): LongInt;
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begin
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if r.isNegative then hwSign:= -1 else hwSign:= 1
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end;
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function Min(a, b: LongInt): LongInt;
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begin
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if a < b then Min:= a else Min:= b
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end;
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function Max(a, b: LongInt): LongInt;
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begin
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if a > b then Max:= a else Max:= b
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end;
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procedure OutError(Msg: String; isFatalError: boolean);
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begin
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{$IFDEF DEBUGFILE}AddFileLog(Msg);{$ENDIF}
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WriteLnToConsole(Msg);
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if isFatalError then
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   begin
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   SendIPC('E' + GetLastConsoleLine);
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   SDL_Quit;
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   halt(1)
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   end
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end;
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procedure TryDo(Assert: boolean; Msg: string; isFatal: boolean);
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begin
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if not Assert then OutError(Msg, isFatal)
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end;
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procedure SDLTry(Assert: boolean; isFatal: boolean);
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begin
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if not Assert then OutError(SDL_GetError, isFatal)
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end;
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procedure AdjustColor(var Color: Longword);
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begin
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Color:= SDL_MapRGB(PixelFormat, (Color shr 16) and $FF, (Color shr 8) and $FF, Color and $FF)
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end;
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function IntToStr(n: LongInt): shortstring;
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begin
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str(n, IntToStr)
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end;
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function FloatToStr(n: hwFloat): shortstring;
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begin
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FloatToStr:= cstr(n)
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end;
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function DxDy2Angle(const _dY, _dX: hwFloat): GLfloat;
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var dY, dX: Extended;
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begin
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dY:= _dY.QWordValue / $100000000;
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if _dY.isNegative then dY:= - dY;
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dX:= _dX.QWordValue / $100000000;
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if _dX.isNegative then dX:= - dX;
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DxDy2Angle:= arctan2(dY, dX) * 180 / pi
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end;
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function DxDy2Angle32(const _dY, _dX: hwFloat): LongInt;
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const _16divPI: Extended = 16/pi;
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var dY, dX: Extended;
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begin
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dY:= _dY.QWordValue / $100000000;
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if _dY.isNegative then dY:= - dY;
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dX:= _dX.QWordValue / $100000000;
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if _dX.isNegative then dX:= - dX;
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DxDy2Angle32:= trunc(arctan2(dY, dX) * _16divPI) and $1f
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end;
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function DxDy2AttackAngle(const _dY, _dX: hwFloat): LongInt;
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const MaxAngleDivPI: Extended = cMaxAngle/pi;
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var dY, dX: Extended;
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begin
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dY:= _dY.QWordValue / $100000000;
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if _dY.isNegative then dY:= - dY;
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dX:= _dX.QWordValue / $100000000;
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if _dX.isNegative then dX:= - dX;
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DxDy2AttackAngle:= trunc(arctan2(dY, dX) * MaxAngleDivPI)
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end;
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208
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procedure SetKB(n: Longword);
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begin
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KBnum:= n
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end;
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procedure SendKB;
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var s: shortstring;
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begin
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if KBnum <> 0 then
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   begin
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   s:= 'K' + inttostr(KBnum);
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   SendIPCRaw(@s, Length(s) + 1)
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   end
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end;
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procedure SetLittle(var r: hwFloat);
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begin
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r:= SignAs(cLittle, r)
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end;
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procedure SendStat(sit: TStatInfoType; s: shortstring);
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const stc: array [TStatInfoType] of char = 'rDK';
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begin
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SendIPC('i' + stc[sit] + s)
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end;
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function rndSign(num: hwFloat): hwFloat;
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begin
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num.isNegative:= getrandom(2) = 0;
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rndSign:= num
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end;
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function Str2PChar(const s: shortstring): PChar;
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const CharArray: array[byte] of Char = '';
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begin
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CharArray:= s;
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CharArray[Length(s)]:= #0;
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Str2PChar:= @CharArray
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end;
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{$IFDEF DEBUGFILE}
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procedure AddFileLog(s: shortstring);
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begin
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writeln(f, GameTicks: 6, ': ', s);
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flush(f)
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end;
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function RectToStr(Rect: TSDL_Rect): shortstring;
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begin
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RectToStr:= '(x: ' + inttostr(rect.x) + '; y: ' + inttostr(rect.y) + '; w: ' + inttostr(rect.w) + '; h: ' + inttostr(rect.h) + ')'
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end;
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function isPowerOf2(i: Longword): boolean;
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begin
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if i = 0 then exit(true);
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while (i and 1) = 0 do i:= i shr 1;
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isPowerOf2:= (i = 1)
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end;
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function toPowerOf2(i: Longword): Longword;
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begin
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toPowerOf2:= 1;
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while (toPowerOf2 < i) do toPowerOf2:= toPowerOf2 shl 1
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end;
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function Surface2Tex(surf: PSDL_Surface): PTexture;
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var mode: LongInt;
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    texId: GLuint;
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    tw, th: Longword;
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    tmpp: pointer;
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begin
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new(Surface2Tex);
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Surface2Tex^.w:= surf^.w;
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Surface2Tex^.h:= surf^.h;
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if (surf^.format^.BytesPerPixel = 3) then mode:= GL_RGB else
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if (surf^.format^.BytesPerPixel = 4) then mode:= GL_RGBA else
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   begin
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   TryDo(false, 'Surface2Tex: BytePerPixel not in [3, 4', false);
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   Surface2Tex^.id:= 0;
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   exit
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   end;
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glGenTextures(1, @Surface2Tex^.id);
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glBindTexture(GL_TEXTURE_2D, Surface2Tex^.id);
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if SDL_MustLock(surf) then
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   SDLTry(SDL_LockSurface(surf) >= 0, true);
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if not (isPowerOf2(Surf^.w) and isPowerOf2(Surf^.h)) then
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   begin
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   tw:= toPowerOf2(Surf^.w);
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   th:= toPowerOf2(Surf^.h);
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   GetMem(tmpp, tw * th * surf^.format^.BytesPerPixel);
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   gluScaleImage(mode, Surf^.w, Surf^.h, GL_UNSIGNED_BYTE,
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        Surf^.pixels, tw, th, GL_UNSIGNED_BYTE,
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        tmpp);
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   glTexImage2D(GL_TEXTURE_2D, 0, mode, tw, th, 0, mode, GL_UNSIGNED_BYTE, tmpp);
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   FreeMem(tmpp, tw * th * surf^.format^.BytesPerPixel)
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   end else
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   glTexImage2D(GL_TEXTURE_2D, 0, mode, surf^.w, surf^.h, 0, mode, GL_UNSIGNED_BYTE, surf^.pixels);
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if SDL_MustLock(surf) then
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   SDL_UnlockSurface(surf);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR)
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end;
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procedure FreeTexture(tex: PTexture);
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begin
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glDeleteTextures(1, @tex^.id);
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dispose(tex)
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end;
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var i: LongInt;
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{$ENDIF}
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initialization
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cDrownSpeed.QWordValue:= 257698038;// 0.06
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cMaxWindSpeed.QWordValue:= 2147484;// 0.0005
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cWindSpeed.QWordValue:=     429496;// 0.0001
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cGravity:= cMaxWindSpeed;
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{$IFDEF DEBUGFILE}
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{$I-}
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if ParamCount > 0 then
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  for i:= 0 to 7 do
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    begin
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    Assign(f, ParamStr(1) + '/debug' + inttostr(i) + '.txt');
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    rewrite(f);
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    if IOResult = 0 then break
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    end;
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{$I+}
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finalization
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writeln(f, '-= halt at ',GameTicks,' ticks =-');
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Flush(f);
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close(f)
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{$ENDIF}
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end.