author | unc0rr |
Sun, 19 Dec 2010 20:33:33 +0300 | |
changeset 4565 | 8a1476a5629e |
parent 4494 | 9585435e20f7 |
child 4648 | d8e1b43482d2 |
permissions | -rw-r--r-- |
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(* |
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* Hedgewars, a free turn based strategy game |
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* Copyright (c) 2010 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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{$INCLUDE "options.inc"} |
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unit uLandPainted; |
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interface |
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procedure LoadFromFile(fileName: shortstring); |
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procedure Draw; |
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procedure initModule; |
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implementation |
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uses uLandGraphics, uConsts, uUtils, SDLh, uCommands; |
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type PointRec = packed record |
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X, Y: SmallInt; |
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flags: byte; |
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end; |
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type |
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PPointEntry = ^PointEntry; |
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PointEntry = record |
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point: PointRec; |
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next: PPointEntry; |
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end; |
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var pointsListHead, pointsListLast: PPointEntry; |
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procedure DrawLineOnLand(X1, Y1, X2, Y2: LongInt); |
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var eX, eY, dX, dY: LongInt; |
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i, sX, sY, x, y, d: LongInt; |
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b: boolean; |
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len: LongWord; |
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begin |
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len:= 0; |
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if (X1 = X2) and (Y1 = Y2) then |
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begin |
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exit |
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end; |
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eX:= 0; |
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eY:= 0; |
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dX:= X2 - X1; |
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dY:= Y2 - Y1; |
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if (dX > 0) then sX:= 1 |
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else |
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if (dX < 0) then |
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begin |
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sX:= -1; |
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dX:= -dX |
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end else sX:= dX; |
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if (dY > 0) then sY:= 1 |
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else |
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if (dY < 0) then |
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begin |
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sY:= -1; |
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dY:= -dY |
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end else sY:= dY; |
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if (dX > dY) then d:= dX |
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else d:= dY; |
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x:= X1; |
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y:= Y1; |
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for i:= 0 to d do |
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begin |
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inc(eX, dX); |
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inc(eY, dY); |
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b:= false; |
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if (eX > d) then |
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begin |
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dec(eX, d); |
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inc(x, sX); |
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b:= true |
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end; |
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if (eY > d) then |
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begin |
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dec(eY, d); |
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inc(y, sY); |
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b:= true |
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end; |
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if b then |
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begin |
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inc(len); |
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if (len mod 4) = 0 then FillRoundInLand(X, Y, 34, lfBasic) |
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end |
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end |
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end; |
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procedure LoadFromFile(fileName: shortstring); |
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var |
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f: file of PointRec; |
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rec, prevRec: PointRec; |
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begin |
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fileMode:= 0; |
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assignFile(f, fileName); |
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reset(f); |
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while not eof(f) do |
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begin |
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read(f, rec); |
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rec.X:= SDLNet_Read16(@rec.X); |
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rec.Y:= SDLNet_Read16(@rec.Y); |
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// FIXME: handle single point |
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if eof(f) or (rec.flags and $80 <> 0) then |
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else |
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DrawLineOnLand(prevRec.X, prevRec.Y, rec.X, rec.Y); |
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prevRec:= rec; |
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end; |
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closeFile(f); |
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end; |
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procedure chDraw(var s: shortstring); |
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var rec: PointRec; |
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prec: ^PointRec; |
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pe: PPointEntry; |
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i, l: byte; |
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begin |
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i:= 1; |
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l:= length(s); |
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while i < l do |
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begin |
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prec:= @s[i]; |
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rec:= prec^; |
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rec.X:= SDLNet_Read16(@rec.X); |
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rec.Y:= SDLNet_Read16(@rec.Y); |
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pe:= new(PPointEntry); |
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if pointsListLast = nil then |
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pointsListHead:= pe |
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else |
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pointsListLast^.next:= pe; |
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pointsListLast:= pe; |
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pe^.point:= rec; |
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pe^.next:= nil; |
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inc(i, 5) |
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end; |
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end; |
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procedure Draw; |
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var pe: PPointEntry; |
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prevPoint: PointRec; |
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begin |
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pe:= pointsListHead; |
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while(pe <> nil) do |
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begin |
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if (pe^.point.flags and $80 <> 0) then |
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FillRoundInLand(pe^.point.X, pe^.point.Y, 34, lfBasic) |
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else |
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DrawLineOnLand(prevPoint.X, prevPoint.Y, pe^.point.X, pe^.point.Y); |
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prevPoint:= pe^.point; |
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pe:= pe^.next; |
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end; |
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end; |
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procedure initModule; |
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begin |
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pointsListHead:= nil; |
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pointsListLast:= nil; |
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RegisterVariable('draw', vtCommand, @chDraw, false); |
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end; |
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end. |