(*

 * Hedgewars, a worms-like game

 * Copyright (c) 2008 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

 *)

unit uVisualGears;

interface

uses SDLh, uConsts, uFloat;

{$INCLUDE options.inc}

const AllInactive: boolean = false;

type PVisualGear = ^TVisualGear;

     TVGearStepProcedure = procedure (Gear: PVisualGear; Steps: Longword);

     TVisualGear = record

             NextGear, PrevGear: PVisualGear;

             State : Longword;

             X : hwFloat;

             Y : hwFloat;

             dX: hwFloat;

             dY: hwFloat;

             Kind: TVisualGearType;

             doStep: TVGearStepProcedure;

             end;

function  AddVisualGear(X, Y: LongInt; Kind: TVisualGearType; dX, dY: hwFloat): PVisualGear;

procedure ProcessVisualGears(Steps: Longword);

procedure DrawVisualGears();

var VisualGearsList: PVisualGear = nil;

implementation

procedure doStepFlake(Gear: PVisualGear; Steps: Longword);

begin

end;

const doStepHandlers: array[TVisualGearType] of TVGearStepProcedure =

                        (

                        );

function  AddVisualGear(X, Y: LongInt; Kind: TVisualGearType; dX, dY: hwFloat): PVisualGear;

var Result: PVisualGear;

begin

New(Result);

FillChar(Result^, sizeof(TVisualGearType), 0);

Result^.X:= int2hwFloat(X);

Result^.Y:= int2hwFloat(Y);

Result^.Kind := Kind;

Result^.dX:= dX;

Result^.dY:= dY;

Result^.doStep:= doStepHandlers[Kind];

if VisualGearsList <> nil then

   begin

   VisualGearsList^.PrevGear:= Result;

   Result^.NextGear:= VisualGearsList

   end;

VisualGearsList:= Result;

AddVisualGear:= Result

end;

procedure ProcessVisualGears(Steps: Longword);

var Gear, t: PVisualGear;

begin

t:= VisualGearsList;

while t <> nil do

      begin

      Gear:= t;

      t:= Gear^.NextGear;

      Gear^.doStep(Gear, Steps)

      end

end;

procedure DrawVisualGears();

var Gear: PVisualGear;

begin

Gear:= VisualGearsList;

while Gear <> nil do

      begin

      case Gear^.Kind of

           vgtFlake: ;

              end;

      Gear:= Gear^.NextGear

      end;

end;

procedure AddClouds;

var i: LongInt;

    dx, dy: hwFloat;

for i:= 0 to cCloudsNumber do

    begin

    dx.isNegative:= random(2) = 1;

    dx.QWordValue:= random(214748364);

    dy.isNegative:= (i and 1) = 1;

    dy.QWordValue:= 21474836 + random(64424509);

    AddVisualGear( - cScreenWidth + i * ((cScreenWidth * 2 + 2304) div cCloudsNumber), -140,

             vgtCloud, dx, dy)

end;

initialization

finalization

end.