hedgewars/uUtils.pas
author koda
Fri, 18 Nov 2011 00:32:52 +0100
changeset 6394 f0a9042e7387
parent 5831 80f2a44becea
child 5932 5164d17b6374
permissions -rw-r--r--
yay, finally osx (and likely windows) fullscreen switch works like on linux! ALL textures had to be destroyed and recreated only after the new window got created. In other news, the new window must be cleaned with glClear to skip a first frame of garbage and AddProgress is only called the first time.

(*
 * Hedgewars, a free turn based strategy game
 * Copyright (c) 2004-2011 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 uUtils;

interface
uses uTypes, uFloat, GLunit;

procedure SplitBySpace(var a, b: shortstring);
procedure SplitByChar(var a, b: ansistring; c: char);

function  EnumToStr(const en : TGearType) : shortstring; overload;
function  EnumToStr(const en : TVisualGearType) : shortstring; overload;
function  EnumToStr(const en : TSound) : shortstring; overload;
function  EnumToStr(const en : TAmmoType) : shortstring; overload;
function  EnumToStr(const en : THogEffect) : shortstring; overload;
function  EnumToStr(const en : TCapGroup) : shortstring; overload;

function  Min(a, b: LongInt): LongInt; inline;
function  Max(a, b: LongInt): LongInt; inline;

function  IntToStr(n: LongInt): shortstring;
function  FloatToStr(n: hwFloat): shortstring;

function  DxDy2Angle(const _dY, _dX: hwFloat): GLfloat;
function  DxDy2Angle32(const _dY, _dX: hwFloat): LongInt;
function  DxDy2AttackAngle(const _dY, _dX: hwFloat): LongInt;
function  DxDy2AttackAngle(const _dY, _dX: extended): LongInt;

procedure SetLittle(var r: hwFloat);

function  Str2PChar(const s: shortstring): PChar;
function  DecodeBase64(s: shortstring): shortstring;

function  isPowerOf2(i: Longword): boolean;
function  toPowerOf2(i: Longword): Longword; inline;

function  endian(independent: LongWord): LongWord; inline;

function  CheckCJKFont(s: ansistring; font: THWFont): THWFont;

procedure AddFileLog(s: shortstring);

function  CheckNoTeamOrHH: boolean; inline;

function  GetLaunchX(at: TAmmoType; dir: LongInt; angle: LongInt): LongInt;
function  GetLaunchY(at: TAmmoType; angle: LongInt): LongInt;

procedure initModule;
procedure freeModule;


implementation
uses typinfo, Math, uConsts, uVariables, SysUtils;

{$IFDEF DEBUGFILE}
var f: textfile;
{$ENDIF}

// should this include "strtolower()" for the split string?
procedure SplitBySpace(var a, b: shortstring);
var i, t: LongInt;
begin
i:= Pos(' ', a);
if i > 0 then
    begin
    for t:= 1 to Pred(i) do
        if (a[t] >= 'A')and(a[t] <= 'Z') then Inc(a[t], 32);
    b:= copy(a, i + 1, Length(a) - i);
    byte(a[0]):= Pred(i)
    end else b:= '';
end;

procedure SplitByChar(var a, b: ansistring; c: char);
var i: LongInt;
begin
i:= Pos(c, a);
if i > 0 then
    begin
    b:= copy(a, i + 1, Length(a) - i);
    setlength(a, Pred(i));
    end else b:= '';
end;

function EnumToStr(const en : TGearType) : shortstring; overload;
begin
EnumToStr:= GetEnumName(TypeInfo(TGearType), ord(en))
end;
function EnumToStr(const en : TVisualGearType) : shortstring; overload;
begin
EnumToStr:= GetEnumName(TypeInfo(TVisualGearType), ord(en))
end;

function EnumToStr(const en : TSound) : shortstring; overload;
begin
EnumToStr:= GetEnumName(TypeInfo(TSound), ord(en))
end;

function EnumToStr(const en : TAmmoType) : shortstring; overload;
begin
EnumToStr:= GetEnumName(TypeInfo(TAmmoType), ord(en))
end;

function EnumToStr(const en: THogEffect) : shortstring; overload;
begin
EnumToStr := GetEnumName(TypeInfo(THogEffect), ord(en))
end;

function EnumToStr(const en: TCapGroup) : shortstring; overload;
begin
EnumToStr := GetEnumName(TypeInfo(TCapGroup), ord(en))
end;


function Min(a, b: LongInt): LongInt;
begin
if a < b then Min:= a else Min:= b
end;

function Max(a, b: LongInt): LongInt;
begin
if a > b then Max:= a else Max:= b
end;


function IntToStr(n: LongInt): shortstring;
begin
str(n, IntToStr)
end;

function FloatToStr(n: hwFloat): shortstring;
begin
FloatToStr:= cstr(n) + '_' + inttostr(Lo(n.QWordValue))
end;


function DxDy2Angle(const _dY, _dX: hwFloat): GLfloat;
var dY, dX: Extended;
begin
dY:= _dY.QWordValue / $100000000;
if _dY.isNegative then dY:= - dY;
dX:= _dX.QWordValue / $100000000;
if _dX.isNegative then dX:= - dX;
DxDy2Angle:= arctan2(dY, dX) * 180 / pi
end;

function DxDy2Angle32(const _dY, _dX: hwFloat): LongInt;
const _16divPI: Extended = 16/pi;
var dY, dX: Extended;
begin
dY:= _dY.QWordValue / $100000000;
if _dY.isNegative then dY:= - dY;
dX:= _dX.QWordValue / $100000000;
if _dX.isNegative then dX:= - dX;
DxDy2Angle32:= trunc(arctan2(dY, dX) * _16divPI) and $1f
end;

function DxDy2AttackAngle(const _dY, _dX: hwFloat): LongInt;
const MaxAngleDivPI: Extended = cMaxAngle/pi;
var dY, dX: Extended;
begin
dY:= _dY.QWordValue / $100000000;
if _dY.isNegative then dY:= - dY;
dX:= _dX.QWordValue / $100000000;
if _dX.isNegative then dX:= - dX;
DxDy2AttackAngle:= trunc(arctan2(dY, dX) * MaxAngleDivPI)
end;

function DxDy2AttackAngle(const _dY, _dX: extended): LongInt; inline;
begin
DxDy2AttackAngle:= trunc(arctan2(_dY, _dX) * (cMaxAngle/pi))
end;


procedure SetLittle(var r: hwFloat);
begin
r:= SignAs(cLittle, r)
end;


function isPowerOf2(i: Longword): boolean;
begin
isPowerOf2:= (i and (i - 1)) = 0
end;

function toPowerOf2(i: Longword): Longword;
begin
toPowerOf2:= 1;
while (toPowerOf2 < i) do toPowerOf2:= toPowerOf2 shl 1
end;


function DecodeBase64(s: shortstring): shortstring;
const table = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
var i, t, c: Longword;
begin
c:= 0;
for i:= 1 to Length(s) do
    begin
    t:= Pos(s[i], table);
    if s[i] = '=' then inc(c);
    if t > 0 then byte(s[i]):= t - 1 else byte(s[i]):= 0
    end;

i:= 1;
t:= 1;
while i <= length(s) do
    begin
    DecodeBase64[t    ]:= char((byte(s[i    ]) shl 2) or (byte(s[i + 1]) shr 4));
    DecodeBase64[t + 1]:= char((byte(s[i + 1]) shl 4) or (byte(s[i + 2]) shr 2));
    DecodeBase64[t + 2]:= char((byte(s[i + 2]) shl 6) or (byte(s[i + 3])      ));
    inc(t, 3);
    inc(i, 4)
    end;

if c < 3 then t:= t - c;

byte(DecodeBase64[0]):= t - 1
end;


function Str2PChar(const s: shortstring): PChar;
const CharArray: array[byte] of Char = '';
begin
CharArray:= s;
CharArray[Length(s)]:= #0;
Str2PChar:= @CharArray
end;


function endian(independent: LongWord): LongWord; inline;
begin
{$IFDEF ENDIAN_LITTLE}
endian:= independent;
{$ELSE}
endian:= (((independent and $FF000000) shr 24) or
          ((independent and $00FF0000) shr 8) or
          ((independent and $0000FF00) shl 8) or
          ((independent and $000000FF) shl 24))
{$ENDIF}
end;


procedure AddFileLog(s: shortstring);
begin
s:= s;
{$IFDEF DEBUGFILE}
writeln(f, GameTicks: 6, ': ', s);
flush(f)
{$ENDIF}
end;


function CheckCJKFont(s: ansistring; font: THWFont): THWFont;
var l, i : LongInt;
    u: WideChar;
    tmpstr: array[0..256] of WideChar;
begin

{$IFNDEF IPHONEOS}
// remove chinese fonts for now
if (font >= CJKfnt16) or (length(s) = 0) then
{$ENDIF}
    exit(font);

l:= Utf8ToUnicode(@tmpstr, Str2PChar(s), length(s))-1;
i:= 0;

while i < l do
    begin
    u:= tmpstr[i];
    if (#$1100  <= u) and  (
                           (u <= #$11FF )  or // Hangul Jamo
       ((#$2E80  <= u) and (u <= #$2FDF))  or // CJK Radicals Supplement / Kangxi Radicals
       ((#$2FF0  <= u) and (u <= #$303F))  or // Ideographic Description Characters / CJK Radicals Supplement
       ((#$3130  <= u) and (u <= #$318F))  or // Hangul Compatibility Jamo
       ((#$31C0  <= u) and (u <= #$31EF))  or // CJK Strokes
       ((#$3200  <= u) and (u <= #$4DBF))  or // Enclosed CJK Letters and Months / CJK Compatibility / CJK Unified Ideographs Extension A
       ((#$4E00  <= u) and (u <= #$9FFF))  or // CJK Unified Ideographs
       ((#$AC00  <= u) and (u <= #$D7AF))  or // Hangul Syllables
       ((#$F900  <= u) and (u <= #$FAFF))  or // CJK Compatibility Ideographs
       ((#$FE30  <= u) and (u <= #$FE4F)))    // CJK Compatibility Forms
       then exit(THWFont( ord(font) + ((ord(High(THWFont))+1) div 2) ));
    inc(i)
    end;
exit(font);
(* two more to check. pascal WideChar is only 16 bit though
       ((#$20000 <= u) and (u >= #$2A6DF)) or // CJK Unified Ideographs Extension B
       ((#$2F800 <= u) and (u >= #$2FA1F)))   // CJK Compatibility Ideographs Supplement *)
end;


function GetLaunchX(at: TAmmoType; dir: LongInt; angle: LongInt): LongInt;
begin
    GetLaunchX:= 0
(*
    if (Ammoz[at].ejectX <> 0) or (Ammoz[at].ejectY <> 0) then
        GetLaunchX:= sign(dir) * (8 + hwRound(AngleSin(angle) * Ammoz[at].ejectX) + hwRound(AngleCos(angle) * Ammoz[at].ejectY))
    else
        GetLaunchX:= 0 *)
end;

function GetLaunchY(at: TAmmoType; angle: LongInt): LongInt;
begin
    GetLaunchY:= 0
(*
    if (Ammoz[at].ejectX <> 0) or (Ammoz[at].ejectY <> 0) then
        GetLaunchY:= hwRound(AngleSin(angle) * Ammoz[at].ejectY) - hwRound(AngleCos(angle) * Ammoz[at].ejectX) - 2
    else
        GetLaunchY:= 0*)
end;

function CheckNoTeamOrHH: boolean;
begin
CheckNoTeamOrHH:= (CurrentTeam = nil) or (CurrentHedgehog^.Gear = nil);
end;

procedure initModule;
{$IFDEF DEBUGFILE}{$IFNDEF IPHONEOS}var i: LongInt;{$ENDIF}{$ENDIF}
begin
{$IFDEF DEBUGFILE}
{$I-}
{$IFDEF IPHONEOS}
    Assign(f,'../Documents/hw-' + cLogfileBase + '.log');
    Rewrite(f);
{$ELSE}
    if (UserPathPrefix <> '') then
        begin
            i:= 0;
            while(i < 7) do
            begin
                assign(f, UserPathPrefix + '/Logs/' + cLogfileBase + inttostr(i) + '.log');
                rewrite(f);
                if IOResult = 0 then break;
                inc(i)
            end;
            if i = 7 then f:= stderr; // if everything fails, write to stderr
        end
    else
        f:= stderr;
{$ENDIF}
{$I+}
{$ENDIF}

end;

procedure freeModule;
begin
    recordFileName:= '';

{$IFDEF DEBUGFILE}
    writeln(f, 'halt at ', GameTicks, ' ticks. TurnTimeLeft = ', TurnTimeLeft);
    flush(f);
    close(f);
{$ENDIF}
end;

end.