(*

 * Hedgewars, a free turn based strategy game

 * Copyright (c) 2004-2013 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 uLandPainted;

interface

procedure Draw;

procedure initModule;

procedure freeModule;

implementation

uses uLandGraphics, uConsts, uVariables, uUtils, SDLh, uCommands, uDebug;

type PointRec = packed record

    X, Y: SmallInt;

    flags: byte;

    end;

type

    PPointEntry = ^PointEntry;

    PointEntry = record

        point: PointRec;

        next: PPointEntry;

        end;

var pointsListHead, pointsListLast: PPointEntry;

procedure chDraw(var s: shortstring);

var rec: PointRec;

    prec: ^PointRec;

    pe: PPointEntry;

    i, l: byte;

begin

    i:= 1;

    l:= length(s);

    while i < l do

        begin

        prec:= @s[i];

        rec:= prec^;

        rec.X:= SDLNet_Read16(@rec.X);

        rec.Y:= SDLNet_Read16(@rec.Y);

        if rec.X < -318 then rec.X:= -318;

        if rec.X > 4096+318 then rec.X:= 4096+318;

        if rec.Y < -318 then rec.Y:= -318;

        if rec.Y > 2048+318 then rec.Y:= 2048+318;

        new(pe);

        if pointsListLast = nil then

            pointsListHead:= pe

        else

            pointsListLast^.next:= pe;

        pointsListLast:= pe;

        pe^.point:= rec;

        pe^.next:= nil;

        inc(i, 5)

        end;

end;

procedure Draw;

var pe: PPointEntry;

    prevPoint: PointRec;

    radius: LongInt;

    color: Longword;

begin

    // shutup compiler

    prevPoint.X:= 0;

    prevPoint.Y:= 0;

    radius:= 0;

    pe:= pointsListHead;

    TryDo((pe = nil) or (pe^.point.flags and $80 <> 0), 'Corrupted draw data', true);

    while(pe <> nil) do

        begin

        if (pe^.point.flags and $80 <> 0) then

            begin

            if (pe^.point.flags and $40 <> 0) then

                color:= 0

                else

                color:= lfBasic;

            radius:= (pe^.point.flags and $3F) * 5 + 3;

            AddFileLog('[DRAW] Move to: ('+inttostr(pe^.point.X)+','+inttostr(pe^.point.Y)+'), radius = '+inttostr(radius));

            FillRoundInLand(pe^.point.X, pe^.point.Y, radius, color)

            end

            else

            begin

            AddFileLog('[DRAW] Line to: ('+inttostr(pe^.point.X)+','+inttostr(pe^.point.Y)+'), radius = '+inttostr(radius));

            DrawThickLine(prevPoint.X, prevPoint.Y, pe^.point.X, pe^.point.Y, radius, color);

            FillRoundInLand(pe^.point.X, pe^.point.Y, radius, color)

            end;

        prevPoint:= pe^.point;

        pe:= pe^.next;  

        end;

end;

procedure initModule;

begin

    pointsListHead:= nil;

    pointsListLast:= nil;

    RegisterVariable('draw', @chDraw, false);

end;

procedure freeModule;

var pe, pp: PPointEntry;

begin

    pe:= pointsListHead;

    while(pe <> nil) do

        begin

        pp:= pe;

        pe:= pe^.next;

        dispose(pp);

        end;

end;

end.