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- On second thought, using FloorBounceMissile() for bouncing off the top of an actor might not

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be the best idea.

SVN r3598 (trunk)
This commit is contained in:
Randy Heit 2012-04-26 03:50:11 +00:00
parent 70902d9da8
commit f8e64a13af
3 changed files with 58 additions and 19 deletions
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4
src/p_local.h
View file

@ -417,8 +417,8 @@ bool P_TeleportMove (AActor* thing, fixed_t x, fixed_t y, fixed_t z, bool telefr
void P_PlayerStartStomp (AActor *actor); // [RH] Stomp on things for a newly spawned player
void P_SlideMove (AActor* mo, fixed_t tryx, fixed_t tryy, int numsteps);
bool P_BounceWall (AActor *mo);
bool P_BounceActor (AActor *mo, AActor * BlockingMobj);
bool P_CheckSight (const AActor* t1, const AActor* t2, int flags=0);
bool P_BounceActor (AActor *mo, AActor *BlockingMobj, bool ontop);
bool P_CheckSight (const AActor *t1, const AActor *t2, int flags=0);
enum ESightFlags
{

64
src/p_map.cpp
View file

@ -2854,7 +2854,7 @@ bool P_BounceWall (AActor *mo)
//==========================================================================
extern FRandom pr_bounce;
bool P_BounceActor (AActor *mo, AActor * BlockingMobj)
bool P_BounceActor (AActor *mo, AActor *BlockingMobj, bool ontop)
{
if (mo && BlockingMobj && ((mo->BounceFlags & BOUNCE_AllActors)
|| ((mo->flags & MF_MISSILE) && (BlockingMobj->flags2 & MF2_REFLECTIVE))
@ -2862,17 +2862,57 @@ bool P_BounceActor (AActor *mo, AActor * BlockingMobj)
))
{
if (mo->bouncecount > 0 && --mo->bouncecount == 0) return false;
fixed_t speed;
angle_t angle = R_PointToAngle2 (BlockingMobj->x,
BlockingMobj->y, mo->x, mo->y) + ANGLE_1*((pr_bounce()%16)-8);
speed = P_AproxDistance (mo->velx, mo->vely);
speed = FixedMul (speed, mo->wallbouncefactor); // [GZ] was 0.75, using wallbouncefactor seems more consistent
mo->angle = angle;
angle >>= ANGLETOFINESHIFT;
mo->velx = FixedMul (speed, finecosine[angle]);
mo->vely = FixedMul (speed, finesine[angle]);
mo->PlayBounceSound(true);
if (!ontop)
{
fixed_t speed;
angle_t angle = R_PointToAngle2 (BlockingMobj->x,
BlockingMobj->y, mo->x, mo->y) + ANGLE_1*((pr_bounce()%16)-8);
speed = P_AproxDistance (mo->velx, mo->vely);
speed = FixedMul (speed, mo->wallbouncefactor); // [GZ] was 0.75, using wallbouncefactor seems more consistent
mo->angle = angle;
angle >>= ANGLETOFINESHIFT;
mo->velx = FixedMul (speed, finecosine[angle]);
mo->vely = FixedMul (speed, finesine[angle]);
mo->PlayBounceSound(true);
}
else
{
fixed_t dot = mo->velz;
if (mo->BounceFlags & (BOUNCE_HereticType | BOUNCE_MBF))
{
mo->velz -= MulScale15 (FRACUNIT, dot);
if (!(mo->BounceFlags & BOUNCE_MBF)) // Heretic projectiles die, MBF projectiles don't.
{
mo->flags |= MF_INBOUNCE;
mo->SetState(mo->FindState(NAME_Death));
mo->flags &= ~MF_INBOUNCE;
return false;
}
else
{
mo->velz = FixedMul(mo->velz, mo->bouncefactor);
}
}
else // Don't run through this for MBF-style bounces
{
// The reflected velocity keeps only about 70% of its original speed
mo->velz = FixedMul(mo->velz - MulScale15(FRACUNIT, dot), mo->bouncefactor);
}
mo->PlayBounceSound(true);
if (mo->BounceFlags & BOUNCE_MBF) // Bring it to rest below a certain speed
{
if (abs(mo->velz) < (fixed_t)(mo->Mass * mo->GetGravity() / 64))
mo->velz = 0;
}
else if (mo->BounceFlags & BOUNCE_AutoOff)
{
if (!(mo->flags & MF_NOGRAVITY) && (mo->velz < 3*FRACUNIT))
mo->BounceFlags &= ~BOUNCE_TypeMask;
}
}
return true;
}
return false;

9
src/p_mobj.cpp
View file

@ -1763,7 +1763,7 @@ fixed_t P_XYMovement (AActor *mo, fixed_t scrollx, fixed_t scrolly)
line_t *BlockingLine = mo->BlockingLine;
if (!(mo->flags & MF_MISSILE) && (mo->BounceFlags & BOUNCE_MBF)
&& (BlockingMobj != NULL ? P_BounceActor(mo, BlockingMobj) : P_BounceWall(mo)))
&& (BlockingMobj != NULL ? P_BounceActor(mo, BlockingMobj, false) : P_BounceWall(mo)))
{
// Do nothing, relevant actions already done in the condition.
// This allows to avoid setting velocities to 0 in the final else of this series.
@ -1858,7 +1858,7 @@ fixed_t P_XYMovement (AActor *mo, fixed_t scrollx, fixed_t scrolly)
if (mo->BounceFlags & BOUNCE_Actors)
{
// Bounce test and code moved to P_BounceActor
if (!P_BounceActor(mo, BlockingMobj))
if (!P_BounceActor(mo, BlockingMobj, false))
{ // Struck a player/creature
P_ExplodeMissile (mo, NULL, BlockingMobj);
}
@ -3305,10 +3305,9 @@ void AActor::Tick ()
}
z = onmo->z + onmo->height;
}
if (velz != 0 && (flags & MF_MISSILE) && (BounceFlags & BOUNCE_Actors))
if (velz != 0 && (BounceFlags & BOUNCE_Actors))
{
secplane_t plane = { 0, 0, FRACUNIT, -z, FRACUNIT };
FloorBounceMissile(plane);
P_BounceActor(this, onmo, true);
}
else
{