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Rewrite T_PolyObjWaypoint to move more smoothly

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MascaraSnake 2020-05-16 08:45:06 +02:00
parent 0508f99419
commit e422d1fa1d
1 changed files with 77 additions and 82 deletions
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55
src/p_polyobj.c
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@ -1600,11 +1600,8 @@ static void T_MovePolyObj(polyobj_t *po, fixed_t distx, fixed_t disty, fixed_t d
void T_PolyObjWaypoint(polywaypoint_t *th) void T_PolyObjWaypoint(polywaypoint_t *th)
{ {
mobj_t *target = NULL; mobj_t *target = NULL;
mobj_t *waypoint = NULL;
fixed_t pox, poy, poz;
fixed_t distx, disty, distz, dist;
fixed_t momx, momy, momz;
polyobj_t *po = Polyobj_GetForNum(th->polyObjNum); polyobj_t *po = Polyobj_GetForNum(th->polyObjNum);
fixed_t speed = th->speed;
if (!po) if (!po)
#ifdef RANGECHECK #ifdef RANGECHECK
@ -1629,6 +1626,14 @@ void T_PolyObjWaypoint(polywaypoint_t *th)
return; return;
} }
// Move along the waypoint sequence until speed for the current tic is exhausted
while (speed > 0)
{
mobj_t *waypoint = NULL;
fixed_t pox, poy, poz;
fixed_t distx, disty, distz, dist;
// Current position of polyobject
pox = po->centerPt.x; pox = po->centerPt.x;
poy = po->centerPt.y; poy = po->centerPt.y;
poz = (po->lines[0]->backsector->floorheight + po->lines[0]->backsector->ceilingheight)/2; poz = (po->lines[0]->backsector->floorheight + po->lines[0]->backsector->ceilingheight)/2;
@ -1642,15 +1647,21 @@ void T_PolyObjWaypoint(polywaypoint_t *th)
if (dist < 1) if (dist < 1)
dist = 1; dist = 1;
momx = FixedMul(FixedDiv(target->x - pox, dist), th->speed); // Will the polyobject overshoot its target?
momy = FixedMul(FixedDiv(target->y - poy, dist), th->speed); if (speed <= dist)
momz = FixedMul(FixedDiv(target->z - poz, dist), th->speed);
// Will the polyobject be FURTHER away if the momx/momy/momz is added to
// its current coordinates, or closer? (shift down to fracunits to avoid approximation errors)
if (dist>>FRACBITS <= P_AproxDistance(P_AproxDistance(target->x - pox - momx, target->y - poy - momy), target->z - poz - momz)>>FRACBITS)
{ {
// If further away, set XYZ of polyobject to waypoint location // No. Move towards waypoint
fixed_t momx, momy, momz;
momx = FixedMul(FixedDiv(target->x - pox, dist), speed);
momy = FixedMul(FixedDiv(target->y - poy, dist), speed);
momz = FixedMul(FixedDiv(target->z - poz, dist), speed);
T_MovePolyObj(po, momx, momy, momz);
return;
}
else
{
// Yes. Teleport to waypoint and look for the next one
T_MovePolyObj(po, distx, disty, distz); T_MovePolyObj(po, distx, disty, distz);
if (!th->stophere) if (!th->stophere)
@ -1688,21 +1699,11 @@ void T_PolyObjWaypoint(polywaypoint_t *th)
// Set the mobj as your target! -- Monster Iestyn 27/12/19 // Set the mobj as your target! -- Monster Iestyn 27/12/19
P_SetTarget(&th->target, target); P_SetTarget(&th->target, target);
// calculate MOMX/MOMY/MOMZ for next waypoint // Calculate remaining speed
// change slope speed -= dist;
dist = P_AproxDistance(P_AproxDistance(target->x - pox, target->y - poy), target->z - poz);
if (dist < 1)
dist = 1;
momx = FixedMul(FixedDiv(target->x - pox, dist), th->speed);
momy = FixedMul(FixedDiv(target->y - poy, dist), th->speed);
momz = FixedMul(FixedDiv(target->z - poz, dist), th->speed);
} }
else else
{ {
momx = momy = momz = 0;
if (!th->stophere) if (!th->stophere)
CONS_Debug(DBG_POLYOBJ, "Next waypoint not found!\n"); CONS_Debug(DBG_POLYOBJ, "Next waypoint not found!\n");
@ -1713,13 +1714,7 @@ void T_PolyObjWaypoint(polywaypoint_t *th)
return; return;
} }
} }
else
{
// momx/momy/momz already equals the right speed
} }
// Move the polyobject
T_MovePolyObj(po, momx, momy, momz);
} }
void T_PolyDoorSlide(polyslidedoor_t *th) void T_PolyDoorSlide(polyslidedoor_t *th)