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#include <amxmodx>
#include <cstrike>
#include <fakemeta>
#include <hamsandwich>

#pragma semicolon 1

#define MAX_PLAYERS 32

#define BIT_VALID(%1,%2) ((%1) & (1 << ((%2) - 1)))
#define BIT_ADD(%1,%2) ((%1) |= (1 << ((%2) - 1)))
#define BIT_SUB(%1,%2) ((%1) &= ~(1 << ((%2) - 1)))
#define BIT_NOT_VALID(%1,%2) (~(%1) & (1 << ((%2) - 1)))

new g_iBitClientAccess, g_iBitCustomModel;

public plugin_init()
{
    register_plugin("Admin Models", "0.1b", "Freedo.m");
    RegisterHam(Ham_Spawn, "player", "Ham_PlayerSpawn_Post", 1);
    register_forward(FM_SetClientKeyValue, "FM_SetClientKeyValue_Pre", 0);
}

public plugin_precache()
{
    precache_model("models/player/leon4/leon4.mdl");
}

public client_putinserver(id)
{
    if(~get_user_flags(id) & ADMIN_LEVEL_A) return;
    BIT_ADD(g_iBitClientAccess, id);
}

public client_disconnect(id)
{
    BIT_SUB(g_iBitClientAccess, id);
    BIT_SUB(g_iBitCustomModel, id);
}

public Ham_PlayerSpawn_Post(id)
{
    if(BIT_VALID(g_iBitClientAccess, id) && is_user_alive(id))
    {
        switch(cs_get_user_team(id))
        {
            case CS_TEAM_T: fm_cs_set_user_model(id, "leon4");
            case CS_TEAM_CT: fm_cs_set_user_model(id, "leon4");
        }
    }
}

new g_szPlayerModel[MAX_PLAYERS + 1][32];

public FM_SetClientKeyValue_Pre(id, const szInfobuffer[], const szKey[])
{
    if(BIT_VALID(g_iBitCustomModel, id) && equal(szKey, "model"))
    {
        static szCurrentModel[32];
        fm_cs_get_user_model(id, szCurrentModel, charsmax(szCurrentModel));
        if(!equal(szCurrentModel, g_szPlayerModel[id])) fm_cs_set_user_model(id, g_szPlayerModel[id]);
        return FMRES_SUPERCEDE;
    }
    return FMRES_IGNORED;
}

stock fm_cs_get_user_model(id, szModel[], szLen) engfunc(EngFunc_InfoKeyValue, engfunc(EngFunc_GetInfoKeyBuffer, id), "model", szModel, szLen);
stock fm_cs_set_user_model(id, const szModelName[])
{
    engfunc(EngFunc_SetClientKeyValue, id, engfunc(EngFunc_GetInfoKeyBuffer, id), "model", szModelName);
    copy(g_szPlayerModel[id], charsmax(g_szPlayerModel[]), szModelName);
    BIT_ADD(g_iBitCustomModel, id);
}

stock fm_cs_reset_user_model(id)
{
    BIT_SUB(g_iBitCustomModel, id);
    dllfunc(DLLFunc_ClientUserInfoChanged, id, engfunc(EngFunc_GetInfoKeyBuffer, id));
}