(*

 * 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 uMisc;

interface

uses uConsts, SDLh;

{$INCLUDE options.inc}

var isCursorVisible : boolean = false;

    isTerminated    : boolean = false;

    isInLag         : boolean = false;

    isSoundEnabled  : boolean = true;

    isSEBackup      : boolean = true;

    isInMultiShoot  : boolean = false;

    GameState     : TGameState = Low(TGameState);

    GameType      : TGameType = gmtLocal;

    GameFlags     : Longword = 0;

    TurnTimeLeft  : Longword = 0;

    cHedgehogTurnTime: Longword = 45000;

    cCloudsNumber    : integer = 9;

    cConsoleHeight   : integer = 320;

    cConsoleYAdd     : integer = 0; 

    cTimerInterval   : Cardinal = 5;

    cScreenWidth     : integer = 1024;

    cScreenHeight    : integer = 768;

    cBits            : integer = 16;

    cBitsStr         : string[2] = '16';

    cWaterLine       : integer = 1024;

    cVisibleWater    : integer = 128;

    cScreenEdgesDist : integer = 240;

    cTeamHealthWidth : integer = 128;

    GameTicks     : LongWord = 0;

    cSkyColor     : Cardinal = 0;

    cWaterColor   : Cardinal = $005ACE;

    cWhiteColor   : Cardinal = $FFFFFF;

    cConsoleSplitterColor : Cardinal = $FF0000;

    cColorNearBlack       : Cardinal = 16;

    cExplosionBorderColor : LongWord = $808080;

    cDrownSpeed   : Double = 0.06;

    cMaxWindSpeed : Double = 0.0005;

    cWindSpeed    : Double = 0.0001;

    cGravity      : Double = 0.0005;

    cShowFPS      : boolean = true;

    cFullScreen   : boolean = true;

    cLocaleFName  : shortstring = 'en.txt';

    cSeed         : shortstring = '';

const

    cMaxPower     = 1500;

    cMaxAngle     = 2048;

    cPowerDivisor = 1500;

var

    cSendEmptyPacketTime : LongWord = 2000;

    cSendCursorPosTime   : LongWord = 50;

    ShowCrosshair  : boolean;

    flagMakeCapture: boolean = false;

    InitStepsFlags: Longword = 0;

    AttackBar: integer = 0; // 0 - none, 1 - just bar at the right-down corner, 2 - like in WWP

function hwSign(r: Double): integer;

function Min(a, b: integer): integer;

function Max(a, b: integer): integer;

procedure OutError(Msg: String; const isFatalError: boolean=false);

procedure TryDo(Assert: boolean; Msg: string; isFatal: boolean);

procedure SDLTry(Assert: boolean; isFatal: boolean);

function IntToStr(n: integer): shortstring;

function FloatToStr(n: Double): shortstring;

function DxDy2Angle32(const _dY, _dX: Extended): integer;

function DxDy2AttackAngle(const _dY, _dX: Extended): integer;

procedure AdjustColor(var Color: Longword);

{$IFDEF DEBUGFILE}

procedure AddFileLog(s: shortstring);

function RectToStr(Rect: TSDL_Rect): shortstring;

{$ENDIF}

var CursorPoint: TPoint;

    TargetPoint: TPoint = (X: NoPointX; Y: 0);

implementation

uses uConsole, uStore, uIO{$IFDEF FPC}, Math{$ENDIF};

{$IFDEF DEBUGFILE}

var f: textfile;

{$ENDIF}

function hwSign(r: Double): integer;

begin

if r < 0 then Result:= -1 else Result:= 1

end;

function Min(a, b: integer): integer;

begin

if a < b then Result:= a else Result:= b

end;

function Max(a, b: integer): integer;

begin

if a > b then Result:= a else Result:= b

end;

procedure OutError(Msg: String; const isFatalError: boolean=false);

begin

{$IFDEF DEBUGFILE}AddFileLog(Msg);{$ENDIF}

WriteLnToConsole(Msg);

if isFatalError then

   begin

   SendIPC('E' + GetLastConsoleLine);

   SDL_Quit;

   halt(1)

   end

end;

procedure TryDo(Assert: boolean; Msg: string; isFatal: boolean);

begin

if not Assert then OutError(Msg, isFatal)

end;

procedure SDLTry(Assert: boolean; isFatal: boolean);

begin

if not Assert then OutError(SDL_GetError, isFatal)

end;

procedure AdjustColor(var Color: Cardinal);

begin

Color:= SDL_MapRGB(PixelFormat, (Color shr 16) and $FF, (Color shr 8) and $FF, Color and $FF)

end;

function IntToStr(n: integer): shortstring;

begin

str(n, Result)

end;

function FloatToStr(n: Double): shortstring;

begin

str(n:5:5, Result)

end;

{$IFNDEF FPC}

function arctan2(const Y, X: Double): Double;

asm

        fld     Y

        fld     X

        fpatan

        fwait

end;

{$ENDIF}

function DxDy2Angle32(const _dY, _dX: Extended): integer;

const _16divPI: Extended = 16/pi;

begin

Result:= trunc(arctan2(_dY, _dX) * _16divPI) and $1f

end;

function DxDy2AttackAngle(const _dY, _dX: Extended): integer;

const MaxAngleDivPI: Extended = cMaxAngle/pi;

begin

Result:= trunc(arctan2(_dY, _dX) * MaxAngleDivPI) mod cMaxAngle

end;

{$IFDEF DEBUGFILE}

procedure AddFileLog(s: shortstring);

begin

writeln(f, GameTicks: 6, ': ', s);

flush(f)

end;

function RectToStr(Rect: TSDL_Rect): shortstring;

begin

Result:= '(x: ' + inttostr(rect.x) + '; y: ' + inttostr(rect.y) + '; w: ' + inttostr(rect.w) + '; h: ' + inttostr(rect.h) + ')'

end;

initialization

AssignFile(f, 'debug.txt');

rewrite(f);

finalization

writeln(f, '-= halt at ',GameTicks,' ticks =-');

Flush(f);

closefile(f)

{$ENDIF}

end.