[ot_207]

HamSandWich function:

PHP Code:

Ham_TakeDamage 


Description:
This function gives us info about the moment a player takes damage, when we use it as a forward. The return of the forward is a boolean, if it is set to 1 then the damage will be done if set to 0 then it will not be done!
It also can be used to give damage.
Here I will present how to correctly use this function!
You should use this function when you want to simulate an attack by a entity!


Usage:

PHP Code:

#define OFFSET_LAST_HIT_GROUP      75
#define EXTRAOFFSET_PL_LINUX        5

// plugin_init()
RegisterHam(Ham_TakeDamage, "player", "fw_takedamage")

public fw_takedamage(victim, inflictor, attacker, Float:damage, bits)
{
    // Victim is the entity that has been taken damage
    // Inflictor is the entity that directly gived damage
    // Attacker is the owner of the inflictor
    // If Attacker == Inflictor that means that the damage was inflicted by a player (such as gun shot/knife stab)
    // Damage the damage
    // Bits the type of damage represented in Bitsums
    
    // For grenade damage (In CS) the bits is equal to (1<<24)
    // Basically for hooking the he grenade damage is to put this condition
    // if (bits & (1<<24))
    
    // For bullet/knife damage (In CS) the bits are equal to (DMG_BULLET | DMG_NEVERGIB)
    // Basically for hooking the shot damage is to put this condition
    // if (bits & (DMG_BULLET | DMG_NEVERGIB))

    // Now the most subtile element is that we can get the last hitgroup where the damage was dealt

    new hitgroup = get_pdata_int(victim, OFFSET_LAST_HIT_GROUP, EXTRAOFFSET_PL_LINUX)
} 


How to properly execute damage? This is the way to do it!

PHP Code:

#define OFFSET_LAST_HIT_GROUP      75
#define EXTRAOFFSET_PL_LINUX        5

new const Float:hitgroup_multi[] =
{
    1.0,  // HIT_GENERIC
    4.0,  // HIT_HEAD
    1.0,  // HIT_CHEST
    1.25, // HIT_STOMACH
    1.0,  // HIT_LEFTARM
    1.0,  // HIT_RIGHTARM
    0.75, // HIT_LEFTLEG
    0.75  // HIT_RIGHTLEG
    0.0   // HIT_SHIELD
}

stock Ham_ExecDamage(victim, inflictor, attacker, damage, hitgroup, bits)
{
    set_pdata_int(victim, OFFSET_LAST_HIT_GROUP, hitgroup, EXTRAOFFSET_PL_LINUX)
    ExecuteHam(Ham_TakeDamage, victim, inflictor, attacker, damage*hitgroup_multi[hitgroup], bits)
}

stock Ham_ExecDamageB(victim, inflictor, attacker, damage, hitgroup, bits)
{
    set_pdata_int(victim, OFFSET_LAST_HIT_GROUP, hitgroup, EXTRAOFFSET_PL_LINUX)
    ExecuteHamB(Ham_TakeDamage, victim, inflictor, attacker, damage*hitgroup_multi[hitgroup], bits)
}

stock HamRadiusDamage(ent, Float:radius, Float:damage, bits)
{
    new target = -1, Float:origin[3]
    pev(ent, pev_origin, origin)
    
    while(( target = find_ent_in_sphere(target, origin, radius) ))
    {
        static Float:o[3]
        pev(target, pev_origin, o)
        
        xs_vec_sub(origin, o, o)
        
        // Recheck if the entity is in radius
        if (xs_vec_len(o) > radius)
            continue
        
        Ham_ExecDamageB(target, ent, pev(ent, pev_owner), damage * (xs_vec_len(o) / radius), HIT_GENERIC, bits)
    }
} 


[stupok]

Thats a good post on Ham_TakeDamage!

I think it is worthwhile to discuss when we should use Ham_TakeDamage and when we should use Ham_TraceAttack.

[SnoW]

Also to mention that knife damage also equals DMG_BULLET | DMG_NEVERGIB, so if you wanted to catch that you would have to check player's weapon like with other guns.

[joropito]

Ot, if you have time, it would be nice yo have a full tutorial of TraceModel and TraceHull because they are two of the most powerfull functions I guess.

[ot_207]

Originally Posted by SnoW Also to mention that knife damage also equals DMG_BULLET | DMG_NEVERGIB, so if you wanted to catch that you would have to check player's weapon like with other guns.

Fixed.

Originally Posted by joropito Ot, if you have time, it would be nice yo have a full tutorial of TraceModel and TraceHull because they are two of the most powerfull functions I guess.

I will do them in the future. This topic will slowly be complete.
The only thing that bothers me is that no one besides me still is active in this topic.
No one is interested in helping others, but everybody is good at observing someone else's mistake...

[Arkshine]

It requires some time to well-written a complete description.

[ot_207]

Originally Posted by Arkshine It requires some time to well-written a complete description.

That may be true, but if you try to make them they will be done in maximum one hour, and it only takes that long when you truly have a big description.

[Arkshine]

I'm going to try to make the easy ones.

[ot_207]

Originally Posted by Arkshine I'm going to try to make the easy ones.

Ok

[Arkshine]

Fakemeta function :

EngFunc_ModelIndex

Description :

Returns an unique index of the model name provided.
It's actually the same number that precache_model() returns.

A model index is used for example in some TE_* messages. ( TE_LIGHTNING, TE_GLOWSPRITE, etc.. See message_const.inc file ).
The model index of an entity is stored in pev_modelindex.

Usage :

ModelIndex = engfunc( EngFunc_ModelIndex, "models/MyModel.mdl" );