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https://git.do.srb2.org/KartKrew/Kart-Public.git
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Make wall renderer account for slopes properly (in most cases)
This commit is contained in:
RedEnchilada
parent
8d35c5064a
commit
65719c5b99
2 changed files with 200 additions and 10 deletions
12
src/r_bsp.c
12
src/r_bsp.c
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@ -854,7 +854,11 @@ static void R_Subsector(size_t num)
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sub->sector->extra_colormap = frontsector->extra_colormap;
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if ((frontsector->floorheight < viewz || (frontsector->heightsec != -1
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if (((
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#ifdef ESLOPE
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frontsector->f_slope ? P_GetZAt(frontsector->f_slope, viewx, viewy) :
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#endif
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frontsector->floorheight) < viewz || (frontsector->heightsec != -1
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&& sectors[frontsector->heightsec].ceilingpic == skyflatnum)))
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{
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floorplane = R_FindPlane(frontsector->floorheight, frontsector->floorpic, floorlightlevel,
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@ -863,7 +867,11 @@ static void R_Subsector(size_t num)
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else
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floorplane = NULL;
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if ((frontsector->ceilingheight > viewz || frontsector->ceilingpic == skyflatnum
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if (((
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#ifdef ESLOPE
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frontsector->c_slope ? P_GetZAt(frontsector->c_slope, viewx, viewy) :
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#endif
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frontsector->ceilingheight) > viewz || frontsector->ceilingpic == skyflatnum
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|| (frontsector->heightsec != -1
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&& sectors[frontsector->heightsec].floorpic == skyflatnum)))
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{
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198
src/r_segs.c
198
src/r_segs.c
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@ -50,6 +50,9 @@ static fixed_t rw_offset2; // for splats
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static fixed_t rw_scale, rw_scalestep;
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static fixed_t rw_midtexturemid, rw_toptexturemid, rw_bottomtexturemid;
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static INT32 worldtop, worldbottom, worldhigh, worldlow;
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#ifdef ESLOPE
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static INT32 worldtopslope, worldbottomslope, worldhighslope, worldlowslope; // worldtop/bottom at end of slope
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#endif
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static fixed_t pixhigh, pixlow, pixhighstep, pixlowstep;
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static fixed_t topfrac, topstep;
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static fixed_t bottomfrac, bottomstep;
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@ -1402,6 +1405,9 @@ void R_StoreWallRange(INT32 start, INT32 stop)
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INT32 i, p;
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lightlist_t *light;
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r_lightlist_t *rlight;
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#ifdef ESLOPE
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vertex_t segleft, segright;
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#endif
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static size_t maxdrawsegs = 0;
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if (ds_p == drawsegs+maxdrawsegs)
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@ -1502,8 +1508,104 @@ void R_StoreWallRange(INT32 start, INT32 stop)
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// calculate texture boundaries
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// and decide if floor / ceiling marks are needed
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worldtop = frontsector->ceilingheight - viewz;
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worldbottom = frontsector->floorheight - viewz;
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#ifdef ESLOPE
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// Figure out map coordinates of where start and end are mapping to on seg, so we can clip right for slope bullshit
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if (frontsector->c_slope || frontsector->f_slope || (backsector && (backsector->c_slope || backsector->f_slope))) {
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angle_t temp;
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fixed_t tan;
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// left
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temp = xtoviewangle[start]+viewangle;
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if (curline->v1->x == curline->v2->x) {
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// Line seg is vertical, so no line-slope form for it
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tan = FINETANGENT((temp+ANGLE_90)>>ANGLETOFINESHIFT);
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segleft.x = curline->v1->x;
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segleft.y = curline->v1->y-FixedMul(viewx-segleft.x, tan);
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} else if (temp>>ANGLETOFINESHIFT == ANGLE_90>>ANGLETOFINESHIFT || temp>>ANGLETOFINESHIFT == ANGLE_270>>ANGLETOFINESHIFT) {
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// Same problem as above, except this time with the view angle
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tan = FixedDiv(curline->v2->y-curline->v1->y, curline->v2->x-curline->v1->x);
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segleft.x = viewx;
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segleft.y = curline->v1->y-FixedMul(viewx-curline->v1->x, tan);
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} else {
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// Both lines can be written in slope-intercept form, so figure out line intersection
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float a1, b1, c1, a2, b2, c2, det; // 1 is the seg, 2 is the view angle vector...
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a1 = FIXED_TO_FLOAT(curline->v2->y-curline->v1->y);
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b1 = FIXED_TO_FLOAT(curline->v1->x-curline->v2->x);
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c1 = a1*FIXED_TO_FLOAT(curline->v1->x) + b1*FIXED_TO_FLOAT(curline->v1->y);
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a2 = -FIXED_TO_FLOAT(FINESINE(temp>>ANGLETOFINESHIFT));
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b2 = FIXED_TO_FLOAT(FINECOSINE(temp>>ANGLETOFINESHIFT));
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c2 = a2*FIXED_TO_FLOAT(viewx) + b2*FIXED_TO_FLOAT(viewy);
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det = a1*b2 - a2*b1;
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segleft.x = FLOAT_TO_FIXED((b2*c1 - b1*c2)/det);
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segleft.y = FLOAT_TO_FIXED((a1*c2 - a2*c1)/det);
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}
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// right
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temp = xtoviewangle[stop]+viewangle;
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if (curline->v1->x == curline->v2->x) {
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// Line seg is vertical, so no line-slope form for it
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tan = FINETANGENT((temp+ANGLE_90)>>ANGLETOFINESHIFT);
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segright.x = curline->v1->x;
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segright.y = curline->v1->y-FixedMul(viewx-segright.x, tan);
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} else if (temp>>ANGLETOFINESHIFT == ANGLE_90>>ANGLETOFINESHIFT || temp>>ANGLETOFINESHIFT == ANGLE_270>>ANGLETOFINESHIFT) {
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// Same problem as above, except this time with the view angle
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tan = FixedDiv(curline->v2->y-curline->v1->y, curline->v2->x-curline->v1->x);
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segright.x = viewx;
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segright.y = curline->v1->y-FixedMul(viewx-curline->v1->x, tan);
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} else {
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// Both lines can be written in slope-intercept form, so figure out line intersection
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float a1, b1, c1, a2, b2, c2, det; // 1 is the seg, 2 is the view angle vector...
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a1 = FIXED_TO_FLOAT(curline->v2->y-curline->v1->y);
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b1 = FIXED_TO_FLOAT(curline->v1->x-curline->v2->x);
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c1 = a1*FIXED_TO_FLOAT(curline->v1->x) + b1*FIXED_TO_FLOAT(curline->v1->y);
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a2 = -FIXED_TO_FLOAT(FINESINE(temp>>ANGLETOFINESHIFT));
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b2 = FIXED_TO_FLOAT(FINECOSINE(temp>>ANGLETOFINESHIFT));
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c2 = a2*FIXED_TO_FLOAT(viewx) + b2*FIXED_TO_FLOAT(viewy);
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det = a1*b2 - a2*b1;
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segright.x = FLOAT_TO_FIXED((b2*c1 - b1*c2)/det);
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segright.y = FLOAT_TO_FIXED((a1*c2 - a2*c1)/det);
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}
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}
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if (frontsector->c_slope) {
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worldtop = P_GetZAt(frontsector->c_slope, segleft.x, segleft.y) - viewz;
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worldtopslope = P_GetZAt(frontsector->c_slope, segright.x, segright.y) - viewz;
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} else {
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worldtopslope =
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#else
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{
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#endif
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worldtop = frontsector->ceilingheight - viewz;
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}
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#ifdef ESLOPE
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if (frontsector->f_slope) {
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worldbottom = P_GetZAt(frontsector->f_slope, segleft.x, segleft.y) - viewz;
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worldbottomslope = P_GetZAt(frontsector->f_slope, segright.x, segright.y) - viewz;
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} else {
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worldbottomslope =
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#else
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{
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#endif
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worldbottom = frontsector->floorheight - viewz;
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}
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midtexture = toptexture = bottomtexture = maskedtexture = 0;
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ds_p->maskedtexturecol = NULL;
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@ -1616,17 +1718,46 @@ void R_StoreWallRange(INT32 start, INT32 stop)
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}
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}
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worldhigh = backsector->ceilingheight - viewz;
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worldlow = backsector->floorheight - viewz;
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#ifdef ESLOPE
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if (backsector->c_slope) {
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worldhigh = P_GetZAt(backsector->c_slope, segleft.x, segleft.y) - viewz;
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worldhighslope = P_GetZAt(backsector->c_slope, segright.x, segright.y) - viewz;
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} else {
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worldhighslope =
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#else
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{
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#endif
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worldhigh = backsector->ceilingheight - viewz;
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}
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#ifdef ESLOPE
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if (backsector->f_slope) {
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worldlow = P_GetZAt(backsector->f_slope, segleft.x, segleft.y) - viewz;
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worldlowslope = P_GetZAt(backsector->f_slope, segright.x, segright.y) - viewz;
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} else {
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worldlowslope =
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#else
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{
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#endif
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worldlow = backsector->floorheight - viewz;
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}
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// hack to allow height changes in outdoor areas
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if (frontsector->ceilingpic == skyflatnum
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&& backsector->ceilingpic == skyflatnum)
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{
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#ifdef ESLOPE
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worldtopslope = worldhighslope =
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#endif
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worldtop = worldhigh;
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}
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if (worldlow != worldbottom
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#ifdef ESLOPE
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|| worldlowslope != worldbottomslope
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#endif
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|| backsector->floorpic != frontsector->floorpic
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|| backsector->lightlevel != frontsector->lightlevel
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//SoM: 3/22/2000: Check floor x and y offsets.
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@ -1649,6 +1780,9 @@ void R_StoreWallRange(INT32 start, INT32 stop)
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}
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if (worldhigh != worldtop
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#ifdef ESLOPE
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|| worldhighslope != worldtopslope
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#endif
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|| backsector->ceilingpic != frontsector->ceilingpic
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|| backsector->lightlevel != frontsector->lightlevel
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//SoM: 3/22/2000: Check floor x and y offsets.
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@ -1678,7 +1812,11 @@ void R_StoreWallRange(INT32 start, INT32 stop)
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}
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// check TOP TEXTURE
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if (worldhigh < worldtop)
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if (worldhigh < worldtop
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#ifdef ESLOPE
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|| worldhighslope < worldtopslope
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#endif
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)
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{
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// top texture
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if ((linedef->flags & (ML_DONTPEGTOP) && (linedef->flags & ML_DONTPEGBOTTOM))
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@ -1721,7 +1859,11 @@ void R_StoreWallRange(INT32 start, INT32 stop)
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}
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}
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// check BOTTOM TEXTURE
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if (worldlow > worldbottom) //seulement si VISIBLE!!!
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if (worldlow > worldbottom
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#ifdef ESLOPE
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|| worldlowslope > worldbottomslope
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#endif
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) //seulement si VISIBLE!!!
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{
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// bottom texture
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bottomtexture = texturetranslation[sidedef->bottomtexture];
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@ -1967,6 +2109,10 @@ void R_StoreWallRange(INT32 start, INT32 stop)
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// calculate incremental stepping values for texture edges
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worldtop >>= 4;
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worldbottom >>= 4;
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#ifdef ESLOPE
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worldtopslope >>= 4;
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worldbottomslope >>= 4;
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#endif
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topstep = -FixedMul (rw_scalestep, worldtop);
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topfrac = (centeryfrac>>4) - FixedMul (worldtop, rw_scale);
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@ -1974,6 +2120,17 @@ void R_StoreWallRange(INT32 start, INT32 stop)
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bottomstep = -FixedMul (rw_scalestep,worldbottom);
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bottomfrac = (centeryfrac>>4) - FixedMul (worldbottom, rw_scale);
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#ifdef ESLOPE
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if (frontsector->c_slope) {
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fixed_t topfracend = (centeryfrac>>4) - FixedMul (worldtopslope, ds_p->scale2);
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topstep = (topfracend-topfrac)/(stop-start+1);
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}
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if (frontsector->f_slope) {
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fixed_t bottomfracend = (centeryfrac>>4) - FixedMul (worldbottomslope, ds_p->scale2);
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bottomstep = (bottomfracend-bottomfrac)/(stop-start+1);
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}
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#endif
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dc_numlights = 0;
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if (frontsector->numlights)
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@ -2036,17 +2193,42 @@ void R_StoreWallRange(INT32 start, INT32 stop)
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{
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worldhigh >>= 4;
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worldlow >>= 4;
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#ifdef ESLOPE
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worldhighslope >>= 4;
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worldlowslope >>= 4;
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#endif
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if (worldhigh < worldtop)
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if (worldhigh < worldtop
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#ifdef ESLOPE
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|| worldhighslope < worldtopslope
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#endif
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)
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{
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pixhigh = (centeryfrac>>4) - FixedMul (worldhigh, rw_scale);
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pixhighstep = -FixedMul (rw_scalestep,worldhigh);
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#ifdef ESLOPE
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if (backsector->c_slope) {
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fixed_t topfracend = (centeryfrac>>4) - FixedMul (worldhighslope, ds_p->scale2);
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pixhighstep = (topfracend-pixhigh)/(stop-start+1);
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}
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#endif
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}
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if (worldlow > worldbottom)
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if (worldlow > worldbottom
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#ifdef ESLOPE
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|| worldlowslope > worldbottomslope
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#endif
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)
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{
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pixlow = (centeryfrac>>4) - FixedMul (worldlow, rw_scale);
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pixlowstep = -FixedMul (rw_scalestep,worldlow);
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#ifdef ESLOPE
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if (backsector->f_slope) {
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fixed_t bottomfracend = (centeryfrac>>4) - FixedMul (worldlowslope, ds_p->scale2);
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pixlowstep = (bottomfracend-pixlow)/(stop-start+1);
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}
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#endif
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}
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{
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