Gez
Why don't I have a custom title by now?!
Posts: 9285
Registered: 07-07 |
printz said:
I noticed that Eternity quietly removed that hack, so now, bouncing objects no longer breach through the BOSS barrier. Thankfully, I'll be adding an EDF patch that corrects it: FORCERADIUSDMG ;)
Does the grenade have to be a "rocket (in air)" (rocketshot) actor?
I think so but I don't remember.
Here's the code I had written to handle BOUNCES in DeHackEd for ZDoom:
code:
if (value[0] & MF_BOUNCES)
{
// BOUNCES (which occupies in MBF the MF_NOLIFTDROP slot)
// This flag is especially convoluted as what it does depend on what
// other flags the actor also has, and whether it's "sentient" or not.
value[0] &= ~MF_BOUNCES; // clean the slot
// MBF considers that things that bounce can be damaged, even if not shootable.
info->flags6 |= MF6_VULNERABLE;
// MBF also considers that bouncers pass through blocking lines as projectiles.
info->flags3 |= MF3_NOBLOCKMONST;
// MBF also considers that bouncers that explode are grenades, and MBF grenades
// are supposed to hurt everything, except cyberdemons if they're fired by cybies.
// Let's translate that in a more generic way as grenades which hurt everything
// except the class of their shooter. Yes, it does diverge a bit from MBF, as for
// example a dehacked arachnotron that shoots grenade would kill itself quickly
// in MBF and will not here. But class-specific checks are cumbersome and limiting.
info->flags4 |= (MF4_FORCERADIUSDMG | MF4_DONTHARMCLASS);
// MBF bouncing missiles rebound on floors and ceiling, but not on walls.
// This is different from BOUNCE_Heretic behavior as in Heretic the missiles
// die when they bounce, while in MBF they will continue to bounce until they
// collide with a wall or a solid actor.
if (value[0] & MF_MISSILE) info->BounceFlags = BOUNCE_Classic;
// MBF bouncing actors that do not have the missile flag will also rebound on
// walls, and this does correspond roughly to the ZDoom bounce style.
else info->BounceFlags = BOUNCE_Grenade;
// MBF grenades are dehacked rockets that gain the BOUNCES flag but
// lose the MISSILE flag, so they can be identified here easily.
if (!(value[0] & MF_MISSILE) && info->effects & FX_ROCKET)
{
info->effects &= ~FX_ROCKET; // replace rocket trail
info->effects |= FX_GRENADE; // by grenade trail
}
// MBF bounce factors depend on flag combos:
enum
{
MBF_BOUNCE_NOGRAVITY = FRACUNIT, // With NOGRAVITY: full momentum
MBF_BOUNCE_FLOATDROPOFF = (FRACUNIT * 85) / 100,// With FLOAT and DROPOFF: 85%
MBF_BOUNCE_FLOAT = (FRACUNIT * 70) / 100,// With FLOAT alone: 70%
MBF_BOUNCE_DEFAULT = (FRACUNIT * 45) / 100,// Without the above flags: 45%
MBF_BOUNCE_WALL = (FRACUNIT * 50) / 100,// Bouncing off walls: 50%
};
info->bouncefactor = ((value[0] & MF_NOGRAVITY) ? MBF_BOUNCE_NOGRAVITY
: (value[0] & MF_FLOAT) ? (value[0] & MF_DROPOFF) ? MBF_BOUNCE_FLOATDROPOFF
: MBF_BOUNCE_FLOAT : MBF_BOUNCE_DEFAULT);
info->wallbouncefactor = ((value[0] & MF_NOGRAVITY) ? MBF_BOUNCE_NOGRAVITY : MBF_BOUNCE_WALL);
// MBF sentient actors with BOUNCE and FLOAT are able to "jump" by floating up.
if (info->IsSentient())
{
if (value[0] & MF_FLOAT) info->flags6 |= MF6_CANJUMP;
}
// Non sentient actors can be damaged but they shouldn't bleed.
else
{
value[0] |= MF_NOBLOOD;
}
}
You can see how annoying it was to deal with that flag's highly context-dependent behavior.
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08-12-10 22:58 
