raze/polymer/eduke32/source/common.c

//
// Common non-engine code/data for EDuke32 and Mapster32
//

#include "compat.h"
#include "scriptfile.h"
#include "cache1d.h"
#include "kplib.h"
#include "baselayer.h"

#include "common.h"


struct strllist *CommandPaths, *CommandGrps;

void G_AddGroup(const char *buffer)
{
    char buf[BMAX_PATH];

    struct strllist *s = Bcalloc(1,sizeof(struct strllist));

    Bstrcpy(buf, buffer);

    if (Bstrchr(buf,'.') == 0)
        Bstrcat(buf,".grp");

    s->str = Bstrdup(buf);

    if (CommandGrps)
    {
        struct strllist *t;
        for (t = CommandGrps; t->next; t=t->next) ;
        t->next = s;
        return;
    }
    CommandGrps = s;
}

void G_AddPath(const char *buffer)
{
    struct strllist *s = Bcalloc(1,sizeof(struct strllist));
    s->str = Bstrdup(buffer);

    if (CommandPaths)
    {
        struct strllist *t;
        for (t = CommandPaths; t->next; t=t->next) ;
        t->next = s;
        return;
    }
    CommandPaths = s;
}

//////////

int32_t getatoken(scriptfile *sf, const tokenlist *tl, int32_t ntokens)
{
    char *tok;
    int32_t i;

    if (!sf) return T_ERROR;
    tok = scriptfile_gettoken(sf);
    if (!tok) return T_EOF;

    for (i=ntokens-1; i>=0; i--)
    {
        if (!Bstrcasecmp(tok, tl[i].text))
            return tl[i].tokenid;
    }
    return T_ERROR;
}

//////////

// checks from path and in ZIPs, returns 1 if NOT found
int32_t check_file_exist(const char *fn)
{
    int32_t opsm = pathsearchmode;
    char *tfn;

    pathsearchmode = 1;
    if (findfrompath(fn,&tfn) < 0)
    {
        char buf[BMAX_PATH];

        Bstrcpy(buf,fn);
        kzfindfilestart(buf);
        if (!kzfindfile(buf))
        {
            initprintf("Error: file \"%s\" does not exist\n",fn);
            pathsearchmode = opsm;
            return 1;
        }
    }
    else Bfree(tfn);
    pathsearchmode = opsm;

    return 0;
}


//// FILE NAME / DIRECTORY LISTS ////
void fnlist_clearnames(fnlist_t *fnl)
{
    klistfree(fnl->finddirs);
    klistfree(fnl->findfiles);

    fnl->finddirs = fnl->findfiles = NULL;
    fnl->numfiles = fnl->numdirs = 0;
}

// dirflags, fileflags:
//  -1 means "don't get dirs/files",
//  otherwise ORed to flags for respective klistpath
int32_t fnlist_getnames(fnlist_t *fnl, const char *dirname, const char *pattern,
                        int32_t dirflags, int32_t fileflags)
{
    CACHE1D_FIND_REC *r;

    fnlist_clearnames(fnl);

    if (dirflags != -1)
        fnl->finddirs = klistpath(dirname, "*", CACHE1D_FIND_DIR|dirflags);
    if (fileflags != -1)
        fnl->findfiles = klistpath(dirname, pattern, CACHE1D_FIND_FILE|fileflags);

    for (r=fnl->finddirs; r; r=r->next)
        fnl->numdirs++;
    for (r=fnl->findfiles; r; r=r->next)
        fnl->numfiles++;

    return(0);
}


// loads all group (grp, zip, pk3) files in the given directory
void G_LoadGroupsInDir(const char *dirname)
{
    static const char *extensions[3] = { "*.grp", "*.zip", "*.pk3" };

    char buf[BMAX_PATH];
    int32_t i;

    fnlist_t fnlist = FNLIST_INITIALIZER;

    for (i=0; i<3; i++)
    {
        CACHE1D_FIND_REC *rec;

        fnlist_getnames(&fnlist, dirname, extensions[i], -1, 0);

        for (rec=fnlist.findfiles; rec; rec=rec->next)
        {
            Bsnprintf(buf, sizeof(buf), "%s/%s", dirname, rec->name);
            initprintf("Using group file \"%s\".\n", buf);
            initgroupfile(buf);
        }

        fnlist_clearnames(&fnlist);
    }
}

void G_DoAutoload(const char *dirname)
{
    char buf[BMAX_PATH];

    Bsnprintf(buf, sizeof(buf), "autoload/%s", dirname);
    G_LoadGroupsInDir(buf);
}

////

// returns a buffer of size BMAX_PATH
char *dup_filename(const char *fn)
{
    char *buf = Bmalloc(BMAX_PATH);

    return Bstrncpyz(buf, fn, BMAX_PATH);
}