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- initialize portals with all other static line specials instead of doing it separately in P_FinishLoadingLineDefs when the map isn't fully set up yet.

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- replace all float use in portal.cpp with doubles.
This commit is contained in:
Christoph Oelckers 2016-02-05 16:58:57 +01:00
parent a85a8c1465
commit 9eaefc3685
4 changed files with 49 additions and 50 deletions
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3
src/p_setup.cpp
View file

@ -2064,9 +2064,6 @@ void P_FinishLoadingLineDef(line_t *ld, int alpha)
ld->special = 0;
break;
}
// [ZZ] check initial portal link
P_CheckPortal(ld);
}
// killough 4/4/98: delay using sidedefs until they are loaded
void P_FinishLoadingLineDefs ()

5
src/p_spec.cpp
View file

@ -64,6 +64,7 @@
#include "a_keys.h"
#include "c_dispatch.h"
#include "r_sky.h"
#include "portal.h"
// State.
#include "r_state.h"
@ -1428,6 +1429,10 @@ void P_SpawnSpecials (void)
}
break;
case Line_SetPortal:
P_SpawnLinePortal(&lines[i]);
break;
// [RH] ZDoom Static_Init settings
case Static_Init:
switch (lines[i].args[1])

40
src/portal.cpp
View file

@ -11,15 +11,15 @@
CVAR(Int, sv_portal_recursions, 4, CVAR_ARCHIVE|CVAR_SERVERINFO)
// [ZZ] lots of floats here to avoid overflowing a lot
bool R_IntersectLines(fixed_t o1x, fixed_t o1y, fixed_t p1x, fixed_t p1y,
bool P_IntersectLines(fixed_t o1x, fixed_t o1y, fixed_t p1x, fixed_t p1y,
fixed_t o2x, fixed_t o2y, fixed_t p2x, fixed_t p2y,
fixed_t& rx, fixed_t& ry)
{
float xx = FIXED2FLOAT(o2x) - FIXED2FLOAT(o1x);
float xy = FIXED2FLOAT(o2y) - FIXED2FLOAT(o1y);
double xx = FIXED2DBL(o2x) - FIXED2DBL(o1x);
double xy = FIXED2DBL(o2y) - FIXED2DBL(o1y);
float d1x = FIXED2FLOAT(p1x) - FIXED2FLOAT(o1x);
float d1y = FIXED2FLOAT(p1y) - FIXED2FLOAT(o1y);
double d1x = FIXED2DBL(p1x) - FIXED2DBL(o1x);
double d1y = FIXED2DBL(p1y) - FIXED2DBL(o1y);
if (d1x > d1y)
{
@ -32,14 +32,14 @@ bool R_IntersectLines(fixed_t o1x, fixed_t o1y, fixed_t p1x, fixed_t p1y,
d1y = 32767.0;
}
float d2x = FIXED2FLOAT(p2x) - FIXED2FLOAT(o2x);
float d2y = FIXED2FLOAT(p2y) - FIXED2FLOAT(o2y);
double d2x = FIXED2DBL(p2x) - FIXED2DBL(o2x);
double d2y = FIXED2DBL(p2y) - FIXED2DBL(o2y);
float cross = d1x*d2y - d1y*d2x;
double cross = d1x*d2y - d1y*d2x;
if (fabs(cross) < 1e-8)
return false;
float t1 = (xx * d2y - xy * d2x)/cross;
double t1 = (xx * d2y - xy * d2x)/cross;
rx = o1x + FLOAT2FIXED(d1x * t1);
ry = o1y + FLOAT2FIXED(d1y * t1);
return true;
@ -53,8 +53,8 @@ inline int P_PointOnLineSideExplicit (fixed_t x, fixed_t y, fixed_t x1, fixed_t
bool P_ClipLineToPortal(line_t* line, line_t* portal, fixed_t viewx, fixed_t viewy, bool partial, bool samebehind)
{
// check if this line is between portal and the viewer. clip away if it is.
bool behind1 = !!P_PointOnLineSide(line->v1->x, line->v1->y, portal);
bool behind2 = !!P_PointOnLineSide(line->v2->x, line->v2->y, portal);
bool behind1 = !!P_PointOnLineSidePrecise(line->v1->x, line->v1->y, portal);
bool behind2 = !!P_PointOnLineSidePrecise(line->v2->x, line->v2->y, portal);
// [ZZ] update 16.12.2014: if a vertex equals to one of portal's vertices, it's treated as being behind the portal.
// this is required in order to clip away diagonal lines around the portal (example: 1-sided triangle shape with a mirror on it's side)
@ -69,8 +69,8 @@ bool P_ClipLineToPortal(line_t* line, line_t* portal, fixed_t viewx, fixed_t vie
{
// line is behind the portal plane. now check if it's in front of two view plane borders (i.e. if it will get in the way of rendering)
fixed_t dummyx, dummyy;
bool infront1 = R_IntersectLines(line->v1->x, line->v1->y, line->v2->x, line->v2->y, viewx, viewy, portal->v1->x, portal->v1->y, dummyx, dummyy);
bool infront2 = R_IntersectLines(line->v1->x, line->v1->y, line->v2->x, line->v2->y, viewx, viewy, portal->v2->x, portal->v2->y, dummyx, dummyy);
bool infront1 = P_IntersectLines(line->v1->x, line->v1->y, line->v2->x, line->v2->y, viewx, viewy, portal->v1->x, portal->v1->y, dummyx, dummyy);
bool infront2 = P_IntersectLines(line->v1->x, line->v1->y, line->v2->x, line->v2->y, viewx, viewy, portal->v2->x, portal->v2->y, dummyx, dummyy);
if (infront1 && infront2)
return true;
}
@ -78,9 +78,7 @@ bool P_ClipLineToPortal(line_t* line, line_t* portal, fixed_t viewx, fixed_t vie
return false;
}
bool P_CheckPortal(line_t* line)
{
if (line->special == Line_SetPortal)
void P_SpawnLinePortal(line_t* line)
{
// portal destination is special argument #0
line_t* dst = NULL;
@ -114,8 +112,6 @@ bool P_CheckPortal(line_t* line)
line->_portal_dst = NULL;
}
}
return (line->_portal);
}
void P_TranslatePortalXY(line_t* src, line_t* dst, fixed_t& x, fixed_t& y)
{
@ -222,9 +218,9 @@ fixed_t P_PointLineDistance(line_t* line, fixed_t x, fixed_t y)
void P_NormalizeVXVY(fixed_t& vx, fixed_t& vy)
{
float _vx = FIXED2FLOAT(vx);
float _vy = FIXED2FLOAT(vy);
float len = sqrt(_vx*_vx+_vy*_vy);
double _vx = FIXED2DBL(vx);
double _vy = FIXED2DBL(vy);
double len = sqrt(_vx*_vx+_vy*_vy);
vx = FLOAT2FIXED(_vx/len);
vy = FLOAT2FIXED(_vy/len);
}
@ -339,7 +335,7 @@ bool PortalTracer::TraceStep()
}
}
//Printf("returning %d; vx = %.2f; vy = %.2f\n", (oDepth != depth), FIXED2FLOAT(this->vx), FIXED2FLOAT(this->vy));
//Printf("returning %d; vx = %.2f; vy = %.2f\n", (oDepth != depth), FIXED2DBL(this->vx), FIXED2DBL(this->vy));
return (oDepth != depth); // if a portal has been found, return false
}

3
src/portal.h
View file

@ -8,10 +8,11 @@
#include "p_local.h"
#include "m_bbox.h"
void P_SpawnLinePortal(line_t* line);
/* code ported from prototype */
bool P_ClipLineToPortal(line_t* line, line_t* portal, fixed_t viewx, fixed_t viewy, bool partial = true, bool samebehind = true);
bool P_CheckPortal(line_t* line);
void P_TranslatePortalXY(line_t* src, line_t* dst, fixed_t& x, fixed_t& y);
void P_TranslatePortalVXVY(line_t* src, line_t* dst, fixed_t& vx, fixed_t& vy);
void P_TranslatePortalAngle(line_t* src, line_t* dst, angle_t& angle);