hedgewars/uCommands.pas
author Wuzzy <Wuzzy2@mail.ru>
Mon, 16 Sep 2019 17:33:49 +0200
changeset 15431 8504fee3b601
parent 11046 47a8c19ecb60
child 15929 128ace913837
permissions -rw-r--r--
Racer: Fix weird water splashes after waypoint placement Does not affect official racer, as only waypoint placement is touched. The reason was that the air attack gear sometimes was not deleted fast enough so it might occassionally drop some air bombs (these are deleted now). Also, the airplane position was set to water level, which caused another water splash.

(*
 * Hedgewars, a free turn based strategy game
 * Copyright (c) 2004-2015 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *)

{$INCLUDE "options.inc"}

unit uCommands;

interface

var isDeveloperMode: boolean;
var isExternalSource: boolean;
type TCommandHandler = procedure (var params: shortstring);

procedure initModule;
procedure freeModule;
procedure RegisterVariable(Name: shortstring; p: TCommandHandler; Trusted: boolean; Rand: boolean);
procedure RegisterVariable(Name: shortstring; p: TCommandHandler; Trusted: boolean);
procedure ParseCommand(CmdStr: shortstring; TrustedSource: boolean); inline;
procedure ParseCommand(CmdStr: shortstring; TrustedSource, ExternalSource: boolean);
procedure ParseTeamCommand(s: shortstring);
procedure StopMessages(Message: Longword);

implementation
uses uConsts, uVariables, uConsole, uUtils, SDLh;

type  PVariable = ^TVariable;
    TVariable = record
        Next: PVariable;
        Name: string[15];
        Handler: TCommandHandler;
        Trusted, Rand: boolean;
        end;

var Variables: PVariable;

procedure RegisterVariable(Name: shortstring; p: TCommandHandler; Trusted: boolean);
begin
RegisterVariable(Name, p, Trusted, false);
end;

procedure RegisterVariable(Name: shortstring; p: TCommandHandler; Trusted: boolean; Rand: boolean);
var value: PVariable;
begin
New(value);
if value = nil then
    ParseCommand('fatal RegisterVariable: value = nil', true);

FillChar(value^, sizeof(TVariable), 0);
value^.Name:= Name;
value^.Handler:= p;
value^.Trusted:= Trusted;
value^.Rand:= Rand;

if Variables = nil then
    Variables:= value
else
    begin
    value^.Next:= Variables;
    Variables:= value
    end;
end;


procedure ParseCommand(CmdStr: shortstring; TrustedSource: boolean); inline;
begin
    ParseCommand(CmdStr, TrustedSource, false)
end;

procedure ParseCommand(CmdStr: shortstring; TrustedSource, ExternalSource: boolean);
var s: shortstring;
    t: PVariable;
    c: char;
begin
isExternalSource:= ExternalSource or ((CurrentTeam <> nil) and CurrentTeam^.ExtDriven);
//WriteLnToConsole(CmdStr);
if CmdStr[0]=#0 then
    exit;

AddFileLog('[Cmd] ' + sanitizeForLog(CmdStr));

c:= CmdStr[1];
if (c = '/') or (c = '$') then
    Delete(CmdStr, 1, 1);
s:= '';
SplitBySpace(CmdStr, s);

t:= Variables;
while t <> nil do
    begin
    if t^.Name = CmdStr then
        begin
        if TrustedSource or t^.Trusted then
            begin
            if t^.Rand and (not CheckNoTeamOrHH) then
                CheckSum:= CheckSum xor LongWord(SDLNet_Read32(@CmdStr)) xor LongWord(s[0]) xor GameTicks;
            t^.Handler(s);
            end;
        exit
        end
    else
        t:= t^.Next
    end;
case c of
    '$': WriteLnToConsole(errmsgUnknownVariable + ': "$' + CmdStr + '"')
    else
        WriteLnToConsole(errmsgUnknownCommand  + ': "/' + CmdStr + '"') end
end;

procedure ParseTeamCommand(s: shortstring);
var Trusted: boolean;
begin
Trusted:= (CurrentTeam <> nil)
          and (not CurrentTeam^.ExtDriven)
          and (CurrentHedgehog^.BotLevel = 0);
ParseCommand(s, Trusted);
if (CurrentTeam <> nil) and (not CurrentTeam^.ExtDriven) and (ReadyTimeLeft > 1) then
    ParseCommand('gencmd R', true)
end;



procedure StopMessages(Message: Longword);
begin
if (Message and gmLeft) <> 0 then
    ParseCommand('/-left', true)
else if (Message and gmRight) <> 0 then
    ParseCommand('/-right', true)
else if (Message and gmUp) <> 0 then
    ParseCommand('/-up', true)
else if (Message and gmDown) <> 0 then
    ParseCommand('/-down', true)
else if (Message and gmAttack) <> 0 then
    ParseCommand('/-attack', true)
end;

procedure initModule;
begin
    Variables:= nil;
    isDeveloperMode:= true;
end;

procedure freeModule;
var t, tt: PVariable;
begin
    tt:= Variables;
    Variables:= nil;
    while tt <> nil do
    begin
        t:= tt;
        tt:= tt^.Next;
        Dispose(t)
    end;
end;

end.