本文整理汇总了C++中DVector3::isZero方法的典型用法代码示例。如果您正苦于以下问题：C++ DVector3::isZero方法的具体用法？C++ DVector3::isZero怎么用？C++ DVector3::isZero使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类DVector3的用法示例。
在下文中一共展示了DVector3::isZero方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: Tick
void AFastProjectile::Tick ()
{
int i;
DVector3 frac;
int changexy;
ClearInterpolation();
double oldz = Z();
if (!(flags5 & MF5_NOTIMEFREEZE))
{
//Added by MC: Freeze mode.
if (bglobal.freeze || level.flags2 & LEVEL2_FROZEN)
{
return;
}
}
// [RH] Ripping is a little different than it was in Hexen
FCheckPosition tm(!!(flags2 & MF2_RIP));
int count = 8;
if (radius > 0)
{
while ( fabs(Vel.X) > radius * count || fabs(Vel.Y) > radius * count)
{
// we need to take smaller steps.
count += count;
}
}
// Handle movement
if (!Vel.isZero() || (Z() != floorz))
{
// force some lateral movement so that collision detection works as intended.
if ((flags & MF_MISSILE) && Vel.X == 0 && Vel.Y == 0 && !IsZeroDamage())
{
Vel.X = MinVel;
}
frac = Vel / count;
changexy = frac.X != 0 || frac.Y != 0;
int ripcount = count / 8;
for (i = 0; i < count; i++)
{
if (changexy)
{
if (--ripcount <= 0)
{
tm.LastRipped.Clear(); // [RH] Do rip damage each step, like Hexen
}
if (!P_TryMove (this, Pos() + frac, true, NULL, tm))
{ // Blocked move
if (!(flags3 & MF3_SKYEXPLODE))
{
if (tm.ceilingline &&
tm.ceilingline->backsector &&
tm.ceilingline->backsector->GetTexture(sector_t::ceiling) == skyflatnum &&
Z() >= tm.ceilingline->backsector->ceilingplane.ZatPoint(PosRelative(tm.ceilingline)))
{
// Hack to prevent missiles exploding against the sky.
// Does not handle sky floors.
Destroy ();
return;
}
// [RH] Don't explode on horizon lines.
if (BlockingLine != NULL && BlockingLine->special == Line_Horizon)
{
Destroy ();
return;
}
}
P_ExplodeMissile (this, BlockingLine, BlockingMobj);
return;
}
}
AddZ(frac.Z);
UpdateWaterLevel ();
oldz = Z();
if (oldz <= floorz)
{ // Hit the floor
if (floorpic == skyflatnum && !(flags3 & MF3_SKYEXPLODE))
{
// [RH] Just remove the missile without exploding it
// if this is a sky floor.
Destroy ();
return;
}
SetZ(floorz);
P_HitFloor (this);
P_ExplodeMissile (this, NULL, NULL);
return;
}
if (Top() > ceilingz)
{ // Hit the ceiling
//.........这里部分代码省略.........