platform.h

/*
 * Copyright (c) 2016-2022 Vera Visions LLC.
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
 
typedef enum
{
    PLATFORM_UNINITIALIZED = -1,
    PLATFORM_UNKNOWN = 0,
    PLATFORM_PC,
    PLATFORM_CONSOLE,
    PLATFORM_TOUCH,
    PLATFORM_WEB
} platform;
 
var platform g_platform = PLATFORM_UNINITIALIZED;
 
/* fast way to query which system we're on */
platform
Platform_GetPlatform(void)
{
    if (g_platform == PLATFORM_UNINITIALIZED) {
        string osname = cvar_string("sys_platform");
        g_platform = PLATFORM_UNKNOWN;
 
        switch (osname) {
        case "Web":
            g_platform = PLATFORM_WEB;
            break;
        case "WinCE":
        case "Xbox":
            g_platform = PLATFORM_CONSOLE;
            break;
        case "WinRT":
        case "iOSSim":
        case "iOS":
        case "Android":
            g_platform = PLATFORM_TOUCH;
            break;
        case "Unknown":
        case "Nacl":
        case "Win":
        case "Win16":
        case "Cygwin":
        case "Linux":
        case "Mac":
        case "Apple":
        case "FreeBSD":
        case "OpenBSD":
        case "NetBSD":
        case "BSD":
        case "MorphOS":
        case "AmigaOS":
        case "MacOS X":
        case "Dos":
        default:
            g_platform = PLATFORM_PC;
            break;
        }
    }
 
    return g_platform;
}
 
bool
Platform_FileInGamedir(string fileName, string gameDir)
{
    searchhandle fileSearch;
    int fileCount = 0i;
 
    fileSearch = search_begin(fileName, SEARCH_FULLPACKAGE, TRUE);
    fileCount = search_getsize(fileSearch);
 
    NSLog("Looking for %S in %S", fileName, gameDir);
 
    /* doesn't exist */
    if (fileCount <= 0) {
        search_end(fileSearch);
        return false;
    }
 
    for (int i = 0; i < fileCount; i++) {
        string fileDir;
        string fullPath = search_getpackagename(fileSearch, i);
        fileDir = substring(fullPath, 0, strlen(gameDir)); /* only need to check same-ness */
 
        if (fileDir == gameDir) {
            NSLog("Found %S in %S", fileName, gameDir);
            search_end(fileSearch);
            return true;
        }
    }
 
    NSError("Did not find %S in %S", fileName, gameDir);
    search_end(fileSearch);
 
    /* file exists but is in a different gamedir */
    return false;
}
 
bool
Platform_FileInCurrentGamedir(string fileName)
{
    string gameDir = cvar_string("game");
    return Platform_FileInGamedir(fileName, gameDir);
}