[Tutorial] Modifying weapon damage

Callback_PlayerDamage_internal( eInflictor, eAttacker, victim, iDamage, iDFlags, sMeansOfDeath, sWeapon, vPoint, vDir, sHitLoc, psOffsetTime )

iDamage = how much damage is dealt
sWeapon = which weapon was used to cause damage
sHitLoc = where the bullet hit the player

Callback_PlayerDamage_internal( eInflictor, eAttacker, victim, iDamage, iDFlags, sMeansOfDeath, sWeapon, vPoint, vDir, sHitLoc, psOffsetTime )
{

We are going to put shit in here

	if ( !isReallyAlive( victim ) )
		return;
	
	if ( isDefined( eAttacker ) && eAttacker.classname == "script_origin" && isDefined( eAttacker.type ) && eAttacker.type == "soft_landing" )
		return;

iDamage = 100; // Any number

if(sWeapon == "weaponname_mp") // use if(isSubStr(sWeapon, "cheytac_")) if you want the weapon to do the damage no matter which attachments
iDamage = 100;

if(sHitLoc == "head") // Full list of tags below
iDamage = 100;

switch(sWeapon)
{
case "cheytac_mp":
case "rpg_mp":
iDamage = 900;
break; // I am not sure if you have to put this in, but do so for safety
case "coltanaconda_mp":
iDamage = 85;
break;
case "etc_mp":
iDamage = 0;
break;
}

switch(sHitLoc)
{
case "head":
case "neck":
case "helmet":
iDamage = 100;
break;
case "left_hand":
case "right_hand":
self DropItem(self getCurrentWeapon());
break;
}

iDamage += 20; // Damage + 20
iDamage * 0.5; // Half damage
iDamage * 2; // Double damage
if(iDamage >= 20) iDamage -= 20; // Damage - 20 but only if damage isnt below 20 so it wouldnt heal the opponent
iDamage * -1; // Not sure, but would heal the enemy in theory

if(isSubStr(sWeapon, "_silencer_"))
iDamage = 100;

if(isSubStr(sWeapon, "usp_"))
iDamage = 100;