It seems that at the current state it is necessary to protect sending stats/ending game from multiple execution,
as that can happen if you e.g. fail a mission more than once in the same tick (e.g. destroying two essential crates at the same time)
Otherwise you can get a blank / stuck frontend (e.g. when using deagle to shoot the two last crates at the same time)!
the best approach might be to never call the function that sends stats and ends game from any event handler directly, but instead have a flag 'isFailed' that is set to true when any of the possible fails happen and to check that flag every tick to send stats and end game if true
unit uPhysFSLayer;
interface
uses SDLh, LuaPas;
const PhysfsLibName = {$IFDEF PHYSFS_INTERNAL}'libhwphysfs'{$ELSE}'libphysfs'{$ENDIF};
const PhyslayerLibName = 'libphyslayer';
{$IFNDEF WIN32}
{$linklib physfs}
{$linklib physlayer}
{$ENDIF}
procedure initModule;
procedure freeModule;
type PFSFile = pointer;
function rwopsOpenRead(fname: shortstring): PSDL_RWops;
function rwopsOpenWrite(fname: shortstring): PSDL_RWops;
function pfsOpenRead(fname: shortstring): PFSFile;
function pfsClose(f: PFSFile): boolean;
procedure pfsReadLn(f: PFSFile; var s: shortstring);
procedure pfsReadLnA(f: PFSFile; var s: ansistring);
function pfsBlockRead(f: PFSFile; buf: pointer; size: Int64): Int64;
function pfsEOF(f: PFSFile): boolean;
function pfsExists(fname: shortstring): boolean;
function physfsReader(L: Plua_State; f: PFSFile; sz: Psize_t) : PChar; cdecl; external PhyslayerLibName;
procedure physfsReaderSetBuffer(buf: pointer); cdecl; external PhyslayerLibName;
procedure hedgewarsMountPackage(filename: PChar); cdecl; external PhyslayerLibName;
implementation
uses uUtils, uVariables, sysutils;
function PHYSFS_init(argv0: PChar) : LongInt; cdecl; external PhysfsLibName;
function PHYSFS_deinit() : LongInt; cdecl; external PhysfsLibName;
function PHYSFSRWOPS_openRead(fname: PChar): PSDL_RWops; cdecl ; external PhyslayerLibName;
function PHYSFSRWOPS_openWrite(fname: PChar): PSDL_RWops; cdecl; external PhyslayerLibName;
function PHYSFS_mount(newDir, mountPoint: PChar; appendToPath: LongBool) : LongInt; cdecl; external PhysfsLibName;
function PHYSFS_openRead(fname: PChar): PFSFile; cdecl; external PhysfsLibName;
function PHYSFS_eof(f: PFSFile): LongBool; cdecl; external PhysfsLibName;
function PHYSFS_readBytes(f: PFSFile; buffer: pointer; len: Int64): Int64; cdecl; external PhysfsLibName;
function PHYSFS_close(f: PFSFile): LongBool; cdecl; external PhysfsLibName;
function PHYSFS_exists(fname: PChar): LongBool; cdecl; external PhysfsLibName;
procedure hedgewarsMountPackages(); cdecl; external PhyslayerLibName;
function rwopsOpenRead(fname: shortstring): PSDL_RWops;
begin
exit(PHYSFSRWOPS_openRead(Str2PChar(fname)));
end;
function rwopsOpenWrite(fname: shortstring): PSDL_RWops;
begin
exit(PHYSFSRWOPS_openWrite(Str2PChar(fname)));
end;
function pfsOpenRead(fname: shortstring): PFSFile;
begin
exit(PHYSFS_openRead(Str2PChar(fname)));
end;
function pfsEOF(f: PFSFile): boolean;
begin
exit(PHYSFS_eof(f))
end;
function pfsClose(f: PFSFile): boolean;
begin
exit(PHYSFS_close(f))
end;
function pfsExists(fname: shortstring): boolean;
begin
exit(PHYSFS_exists(Str2PChar(fname)))
end;
procedure pfsReadLn(f: PFSFile; var s: shortstring);
var c: char;
begin
s[0]:= #0;
while (PHYSFS_readBytes(f, @c, 1) = 1) and (c <> #10) do
if (c <> #13) and (s[0] < #255) then
begin
inc(s[0]);
s[byte(s[0])]:= c
end
end;
procedure pfsReadLnA(f: PFSFile; var s: ansistring);
var c: char;
b: shortstring;
begin
s:= '';
b[0]:= #0;
while (PHYSFS_readBytes(f, @c, 1) = 1) and (c <> #10) do
if (c <> #13) then
begin
inc(b[0]);
b[byte(b[0])]:= c;
if b[0] = #255 then
begin
s:= s + b;
b[0]:= #0
end
end;
s:= s + b
end;
function pfsBlockRead(f: PFSFile; buf: pointer; size: Int64): Int64;
var r: Int64;
begin
r:= PHYSFS_readBytes(f, buf, size);
if r <= 0 then
pfsBlockRead:= 0
else
pfsBlockRead:= r
end;
procedure initModule;
var i: LongInt;
cPhysfsId: shortstring;
begin
{$IFDEF HWLIBRARY}
//TODO: http://icculus.org/pipermail/physfs/2011-August/001006.html
cPhysfsId:= GetCurrentDir() + {$IFDEF DARWIN}{$IFNDEF IPHONEOS}'/Hedgewars.app/Contents/MacOS/' + {$ENDIF}{$ENDIF} ' hedgewars';
{$ELSE}
cPhysfsId:= ParamStr(0);
{$ENDIF}
i:= PHYSFS_init(Str2PChar(cPhysfsId));
AddFileLog('[PhysFS] init: ' + inttostr(i));
i:= PHYSFS_mount(Str2PChar(PathPrefix), nil, false);
AddFileLog('[PhysFS] mount ' + PathPrefix + ': ' + inttostr(i));
i:= PHYSFS_mount(Str2PChar(UserPathPrefix + '/Data'), nil, false);
AddFileLog('[PhysFS] mount ' + UserPathPrefix + '/Data: ' + inttostr(i));
hedgewarsMountPackages;
i:= PHYSFS_mount(Str2PChar(UserPathPrefix), nil, false);
// need access to teams and frontend configs (for bindings)
AddFileLog('[PhysFS] mount ' + UserPathPrefix + ': ' + inttostr(i));
end;
procedure freeModule;
begin
PHYSFS_deinit;
end;
end.