[Cheap_Suit]

Note if this example is in your plugin: If its 80%> of your whole script, I suggest you dont post it as a plugin.

This is a small example on changing weapon models for Counter-Strike. With this example you can change all 3 types of the model: view, player, and world. I have written one with Engine and Fakemeta for people who are not familiar with Fakemeta yet, and one only on fakemeta for L33T coders.

I hope this helps, so people dont need to keep posting about this ;).

Engine and Fakemeta

#include <amxmodx> 
#include <engine> 
#include <fakemeta> 

new VIEW_MODEL[]        = "models/v_<model name>.mdl" 
new PLAYER_MODEL[]        = "models/p_<model name>.mdl" 
new WORLD_MODEL[]    = "models/w_<model name>.mdl"

new OLDWORLD_MODEL[]    = "models/w_<model name>.mdl" // the world model you want replaced

new PLUGIN_NAME[]    = "Custom Weapon Model" 
new PLUGIN_AUTHOR[]         = "Cheap_Suit" 
new PLUGIN_VERSION[]        = "1.0" 

public plugin_init() 
{
    register_plugin(PLUGIN_NAME, PLUGIN_VERSION, PLUGIN_AUTHOR)     
    register_event("CurWeapon", "Event_CurWeapon", "be","1=1")
    register_forward(FM_SetModel, "fw_SetModel")
} 

public plugin_precache() 
{    
    precache_model(VIEW_MODEL)     
    precache_model(PLAYER_MODEL) 
    precache_model(WORLD_MODEL)
} 

public Event_CurWeapon(id) 
{     
    // might not work for other mods
    new weaponID = read_data(2) 
        
    // eg, if weapon is not ak then continue
    if(weaponID != CSW_AK47)
        return PLUGIN_CONTINUE
    
    // this set's the view model (what you see when holding the gun)
    entity_set_string(id, EV_SZ_viewmodel, VIEW_MODEL)  
    
    // this set's the player model (what you see when people holding the gun)
    entity_set_string(id, EV_SZ_weaponmodel, PLAYER_MODEL)         
    
    return PLUGIN_CONTINUE 
}

public fw_SetModel(entity, model[])
{
    // check if its a valid entity or else we'll get errors
    if(!is_valid_ent(entity)) 
        return FMRES_IGNORED

    // checks if it's the model we want to change
    if(!equali(model, OLDWORLD_MODEL)) 
        return FMRES_IGNORED

    new className[33]
    entity_get_string(entity, EV_SZ_classname, className, 32)

    //            dropped weapons                      map weapons                       c4 + grenades
    if(equal(className, "weaponbox") || equal(className, "armoury_entity") || equal(className, "grenade"))
    {
        // set's the world model (what you see on the ground)
        entity_set_model(entity, WORLD_MODEL)
        return FMRES_SUPERCEDE
    }
    return FMRES_IGNORED
}

Only Fakemeta

public Event_CurWeapon(id) 
{     
    // might not work for other mods
    new weaponID = read_data(2) 
        
    // eg, if weapon is not ak then continue
    if(weaponID != CSW_AK47)
        return PLUGIN_CONTINUE
    
    // this set's the view model (what you see when holding the gun)
    set_pev(id, pev_viewmodel, engfunc(EngFunc_AllocString, VIEW_MODEL))
    
    // this set's the player model (what you see when people holding the gun)
    set_pev(id, pev_weaponmodel, engfunc(EngFunc_AllocString, PLAYER_MODEL))
    
    return PLUGIN_CONTINUE 
}

public fw_SetModel(entity, model[])
{
    // check if its a valid entity or else we get errors
    if(!pev_valid(entity)) 
        return FMRES_IGNORED

    // checks if its the model we want to change
    if(!equali(model, OLDWORLD_MODEL)) 
        return FMRES_IGNORED

    new className[33]
    pev(entity, pev_classname, className, 32)
    
    //            dropped weapons                    map weapons                       c4 + grenades
    if(equal(className, "weaponbox") || equal(className, "armoury_entity") || equal(className, "grenade"))
    {
        engfunc(EngFunc_SetModel, entity, WORLD_MODEL)
        return FMRES_SUPERCEDE
    }
    return FMRES_IGNORED
}

Note: Using viewmodel2 and weaponmodel2.

Weapon ID reference

#define CSW_P228        1
#define CSW_SCOUT        3
#define CSW_HEGRENADE        4
#define CSW_XM1014        5
#define CSW_C4            6
#define CSW_MAC10        7
#define CSW_AUG            8
#define CSW_SMOKEGRENADE    9
#define CSW_ELITE        10
#define CSW_FIVESEVEN        11
#define CSW_UMP45        12
#define CSW_SG550        13
#define CSW_GALI        14
#define CSW_GALIL        14
#define CSW_FAMAS        15
#define CSW_USP            16
#define CSW_GLOCK18        17
#define CSW_AWP            18
#define CSW_MP5NAVY        19
#define CSW_M249        20
#define CSW_M3            21
#define CSW_M4A1        22
#define CSW_TMP            23
#define CSW_G3SG1        24
#define CSW_FLASHBANG        25
#define CSW_DEAGLE        26
#define CSW_SG552        27
#define CSW_AK47        28
#define CSW_KNIFE        29
#define CSW_P90            30

Example of changing the skin of the knife

#include <amxmodx> 
#include <engine> 
#include <fakemeta> 

new VIEW_MODEL[]    = "models/v_newKnife.mdl" 
new PLAYER_MODEL[]    = "models/p_newKnife.mdl" 
new WORLD_MODEL[]    = "models/w_knife.mdl"

new OLDWORLD_MODEL[]    = "models/w_knife.mdl"

new PLUGIN_NAME[]        = "Custom Knife Model" 
new PLUGIN_AUTHOR[]    = "Cheap_Suit" 
new PLUGIN_VERSION[]     = "1.0" 

public plugin_init() 
{
    register_plugin(PLUGIN_NAME, PLUGIN_VERSION, PLUGIN_AUTHOR)     
    register_event("CurWeapon", "Event_CurWeapon", "be","1=1")
    register_forward(FM_SetModel, "fw_SetModel")
} 

public plugin_precache() 
{    
    precache_model(VIEW_MODEL)     
    precache_model(PLAYER_MODEL) 
    precache_model(WORLD_MODEL)
} 

public Event_CurWeapon(id) 
{     
    new weaponID = read_data(2) 

    if(weaponID != CSW_KNIFE)
        return PLUGIN_CONTINUE

    set_pev(id, pev_viewmodel2, VIEW_MODEL)
    set_pev(id, pev_weaponmodel2, PLAYER_MODEL)
    
    return PLUGIN_CONTINUE 
}

public fw_SetModel(entity, model[])
{
    if(!is_valid_ent(entity)) 
        return FMRES_IGNORED

    if(!equali(model, OLDWORLD_MODEL)) 
        return FMRES_IGNORED

    new className[33]
    entity_get_string(entity, EV_SZ_classname, className, 32)
    
    if(equal(className, "weaponbox") || equal(className, "armoury_entity") || equal(className, "grenade"))
    {
        engfunc(EngFunc_SetModel, entity, WORLD_MODEL)
        return FMRES_SUPERCEDE
    }
    return FMRES_IGNORED
}