mirror of https://github.com/ZDoom/gzdoom-gles.git
89 lines
2.3 KiB
C++
89 lines
2.3 KiB
C++
#include "m_random.h"
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#include "p_local.h"
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static FRandom pr_fogspawn ("FogSpawn");
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//==========================================================================
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// Fog Variables:
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//
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// args[0] Speed (0..10) of fog
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// args[1] Angle of spread (0..128)
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// args[2] Frequency of spawn (1..10)
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// args[3] Lifetime countdown
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// args[4] Boolean: fog moving?
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// special1 Internal: Counter for spawn frequency
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// special2 Internal: Index into floatbob table
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//
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//==========================================================================
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//==========================================================================
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//
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// A_FogSpawn
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//
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//==========================================================================
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void A_FogSpawn (AActor *actor)
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{
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static const PClass *fogs[3] =
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{
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PClass::FindClass ("FogPatchSmall"),
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PClass::FindClass ("FogPatchMedium"),
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PClass::FindClass ("FogPatchLarge")
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};
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AActor *mo=NULL;
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angle_t delta;
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if (actor->special1-- > 0) return;
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actor->special1 = actor->args[2]; // Reset frequency count
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mo = Spawn (fogs[pr_fogspawn()%3], actor->x, actor->y, actor->z, ALLOW_REPLACE);
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if (mo)
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{
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delta = actor->args[1];
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if (delta==0) delta=1;
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mo->angle = actor->angle + (((pr_fogspawn()%delta)-(delta>>1))<<24);
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mo->target = actor;
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if (actor->args[0] < 1) actor->args[0] = 1;
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mo->args[0] = (pr_fogspawn() % (actor->args[0]))+1; // Random speed
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mo->args[3] = actor->args[3]; // Set lifetime
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mo->args[4] = 1; // Set to moving
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mo->special2 = pr_fogspawn()&63;
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}
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}
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//==========================================================================
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//
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// A_FogMove
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//
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//==========================================================================
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void A_FogMove (AActor *actor)
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{
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int speed = actor->args[0]<<FRACBITS;
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angle_t angle;
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int weaveindex;
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if (!(actor->args[4])) return;
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if (actor->args[3]-- <= 0)
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{
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actor->SetStateNF (actor->FindState(NAME_Death));
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return;
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}
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if ((actor->args[3] % 4) == 0)
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{
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weaveindex = actor->special2;
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actor->z += FloatBobOffsets[weaveindex]>>1;
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actor->special2 = (weaveindex+1)&63;
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}
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angle = actor->angle>>ANGLETOFINESHIFT;
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actor->momx = FixedMul(speed, finecosine[angle]);
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actor->momy = FixedMul(speed, finesine[angle]);
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}
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