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e4af82ae96
velocity, and now it's known as such. The actor variables momx/momy/momz are now known as velx/vely/velz, and the ACS functions GetActorMomX/Y/Z are now known as GetActorVelX/Y/Z. For compatibility, momx/momy/momz will continue to work as aliases from DECORATE. The ACS functions, however, require you to use the new name, since they never saw an official release yet. SVN r1689 (trunk)
117 lines
2.2 KiB
C++
117 lines
2.2 KiB
C++
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#include "a_sharedglobal.h"
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#include "p_local.h"
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#include "g_level.h"
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IMPLEMENT_CLASS(AFastProjectile)
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//----------------------------------------------------------------------------
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//
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// AFastProjectile :: Tick
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//
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// Thinker for the ultra-fast projectiles used by Heretic and Hexen
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//
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//----------------------------------------------------------------------------
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void AFastProjectile::Tick ()
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{
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int i;
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fixed_t xfrac;
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fixed_t yfrac;
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fixed_t zfrac;
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int changexy;
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PrevX = x;
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PrevY = y;
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PrevZ = z;
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if (!(flags5 & MF5_NOTIMEFREEZE))
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{
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//Added by MC: Freeze mode.
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if (bglobal.freeze || level.flags2 & LEVEL2_FROZEN)
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{
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return;
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}
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}
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// [RH] Ripping is a little different than it was in Hexen
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FCheckPosition tm(!!(flags2 & MF2_RIP));
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int shift = 3;
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int count = 8;
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if (radius > 0)
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{
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while ( ((abs(velx) >> shift) > radius) || ((abs(vely) >> shift) > radius))
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{
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// we need to take smaller steps.
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shift++;
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count<<=1;
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}
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}
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// Handle movement
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if (velx || vely || (z != floorz) || velz)
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{
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xfrac = velx >> shift;
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yfrac = vely >> shift;
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zfrac = velz >> shift;
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changexy = xfrac || yfrac;
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int ripcount = count >> 3;
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for (i = 0; i < count; i++)
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{
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if (changexy)
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{
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if (--ripcount <= 0)
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{
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tm.LastRipped = NULL; // [RH] Do rip damage each step, like Hexen
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}
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if (!P_TryMove (this, x + xfrac,y + yfrac, true, false, tm))
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{ // Blocked move
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P_ExplodeMissile (this, BlockingLine, BlockingMobj);
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return;
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}
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}
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z += zfrac;
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if (z <= floorz)
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{ // Hit the floor
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z = floorz;
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P_HitFloor (this);
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P_ExplodeMissile (this, NULL, NULL);
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return;
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}
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if (z + height > ceilingz)
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{ // Hit the ceiling
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z = ceilingz - height;
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P_ExplodeMissile (this, NULL, NULL);
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return;
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}
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if (changexy && ripcount <= 0)
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{
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ripcount = count >> 3;
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Effect();
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}
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}
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}
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// Advance the state
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if (tics != -1)
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{
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tics--;
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while (!tics)
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{
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if (!SetState (state->GetNextState ()))
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{ // mobj was removed
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return;
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}
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}
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}
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}
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void AFastProjectile::Effect()
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{
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}
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