cl_tip.cpp

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/*
All original material Copyright (C) 2002-2025 UFO: Alien Invasion.
 
Copyright (C) 1997-2001 Id Software, Inc.
 
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; either version 2
of the License, or (at your option) any later version.
 
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.
 
*/
 
#include "cl_tip.h"
#include "client.h"
#include "ui/ui_main.h"
#include "../shared/parse.h"
 
typedef struct tipOfTheDay_s {
    const char* tipString;          
    struct tipOfTheDay_s* next;
} tipOfTheDay_t;
 
static tipOfTheDay_t* tipList;      
static int tipCount;                
 
static cvar_t* cl_showTipOfTheDay;  

static void CL_GetTipOfTheDay_f (void)
{
    static int lastOne = 0;

    if (!tipCount) {
        UI_CloseWindow("popup_tipoftheday");
        Com_Printf("No tips parsed\n");
        return;
    }
 
    int rnd;
    if (Cmd_Argc() == 2) {
        rnd = rand() % tipCount;
        lastOne = rnd;
    } else {
        lastOne = (lastOne + 1) % tipCount;
        rnd = lastOne;
    }
 
    tipOfTheDay_t* tip = tipList;
    while (rnd) {
        tip = tip->next;
        rnd--;
    }
 
    UI_RegisterText(TEXT_TIPOFTHEDAY, tip->tipString);
}

void CL_ParseTipOfTheDay (const char* name, const char** text)
{
    if (name[0] != '_') {
        Com_Printf("Ignore tip: '%s' - not marked translatable\n", name);
        return;
    }
    tipOfTheDay_t* const tip = Mem_PoolAllocType(tipOfTheDay_t, cl_genericPool);
    tip->tipString = Mem_PoolStrDup(name, cl_genericPool, 0);
    tip->next = tipList;
    tipList = tip;
    tipCount++;
}

void TOTD_InitStartup (void)
{
    cl_showTipOfTheDay = Cvar_Get("cl_showTipOfTheDay", "1", CVAR_ARCHIVE, "Show the tip of the day for singleplayer campaigns");
 
    /* commands */
    Cmd_AddCommand("tipoftheday", CL_GetTipOfTheDay_f, "Get the next tip of the day from the script files - called from tip of the day menu");
}
 
void TOTD_Shutdown (void)
{
    tipList = nullptr;
    tipCount = 0;
}