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- Added support for ST's QUARTERGRAVITY flag.

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- Added a generalized version of Skulltag's A_CheckRailReload function.
- Fixed: DrawImage didn't take 0 as a valid image index.
- Added Gez's RandomSpawner submission with significant changes.
- Added optional blocks for MAPINFO map definitions. ZDoom doesn't use
  this feature itself but it allows other ports based on ZDoom
  to implement their own sets of options without making such a MAPINFO 
  unreadable by ZDoom.


SVN r1044 (trunk)
This commit is contained in:
Christoph Oelckers 2008-06-22 09:13:19 +00:00
commit 4ff07b68ee
16 changed files with 383 additions and 58 deletions
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86
src/g_shared/a_randomspawner.cpp Normal file
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#include "actor.h"
#include "info.h"
#include "m_random.h"
#include "p_local.h"
#include "p_enemy.h"
#include "s_sound.h"
#include "a_doomglobal.h"
#include "statnums.h"
#include "gstrings.h"
#include "a_action.h"
#include "thingdef/thingdef.h"
/*
- in the decorate definition define multiple drop items
- use the function GetDropItems to get the first drop item, then iterate over them and count how many dropitems are defined.
- with M_Random( ) % NUMBEROFDROPITEMS you get a random drop item number (let's call it n)
- use GetDropItems again to get the first drop item, then iterate to the n-th drop item
*/
static FRandom pr_randomspawn("RandomSpawn");
class ARandomSpawner : public AActor
{
DECLARE_STATELESS_ACTOR (ARandomSpawner, AActor)
void PostBeginPlay()
{
AActor *newmobj;
FDropItem *di; // di will be our drop item list iterator
FDropItem *drop; // while drop stays as the reference point.
int n=0;
Super::PostBeginPlay();
drop = di = GetDropItems(RUNTIME_TYPE(this));
// Always make sure it actually exists.
if (di != NULL)
{
// First, we get the size of the array...
while (di != NULL)
{
if (di->Name != NAME_None)
{
if (di->amount < 0) di->amount = 1; // default value is -1, we need a positive value.
n += di->amount; // this is how we can weight the list.
di = di->Next;
}
}
// Then we reset the iterator to the start position...
di = drop;
// Take a random number...
n = pr_randomspawn(n);
// And iterate in the array up to the random number chosen.
while (n > 0)
{
if (di->Name != NAME_None)
{
n -= di->amount;
di = di->Next;
}
}
// So now we can spawn the dropped item.
if (pr_randomspawn() <= di->probability) // prob 255 = always spawn, prob 0 = never spawn.
{
newmobj = Spawn(di->Name, x, y, z, ALLOW_REPLACE);
// copy everything relevant
newmobj->SpawnAngle = newmobj->angle = angle;
newmobj->special = special;
newmobj->args[0] = args[0];
newmobj->args[1] = args[1];
newmobj->args[2] = args[2];
newmobj->args[3] = args[3];
newmobj->args[4] = args[4];
newmobj->SpawnFlags = SpawnFlags;
newmobj->HandleSpawnFlags();
newmobj->momx = momx;
newmobj->momy = momy;
newmobj->momz = momz;
newmobj->CopyFriendliness(this, false);
}
}
}
};
IMPLEMENT_STATELESS_ACTOR (ARandomSpawner, Any, -1, 0)
END_DEFAULTS