Move loading of extended subsectors and segs into its own function
This commit is contained in:
parent
c287b86fab
commit
36f86077da
126
src/p_setup.c
126
src/p_setup.c
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@ -1343,6 +1343,15 @@ static void P_LoadMapData(const virtres_t *virt)
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memcpy(spawnsides, sides, numsides * sizeof (*sides));
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memcpy(spawnsides, sides, numsides * sizeof (*sides));
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}
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}
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static void P_InitializeSubsector(subsector_t *ss)
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{
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ss->sector = NULL;
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#ifdef FLOORSPLATS
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ss->splats = NULL;
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#endif
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ss->validcount = 0;
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}
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static inline void P_LoadSubsectors(UINT8 *data)
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static inline void P_LoadSubsectors(UINT8 *data)
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{
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{
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mapsubsector_t *ms = (mapsubsector_t*)data;
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mapsubsector_t *ms = (mapsubsector_t*)data;
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@ -1351,13 +1360,9 @@ static inline void P_LoadSubsectors(UINT8 *data)
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for (i = 0; i < numsubsectors; i++, ss++, ms++)
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for (i = 0; i < numsubsectors; i++, ss++, ms++)
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{
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{
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ss->sector = NULL;
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ss->numlines = SHORT(ms->numsegs);
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ss->numlines = SHORT(ms->numsegs);
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ss->firstline = SHORT(ms->firstseg);
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ss->firstline = SHORT(ms->firstseg);
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#ifdef FLOORSPLATS
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P_InitializeSubsector(ss);
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ss->splats = NULL;
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#endif
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ss->validcount = 0;
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}
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}
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}
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}
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@ -1562,44 +1567,11 @@ static boolean P_LoadExtraVertices(UINT8 *data)
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return true;
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return true;
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}
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}
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// Auxiliary function: Shrink node ID from 32-bit to 16-bit.
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static boolean P_LoadExtendedSubsectorsAndSegs(UINT8 *data, nodetype_t nodetype)
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static UINT16 ShrinkNodeID(UINT32 x) {
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UINT16 mask = (x >> 16) & 0xC000;
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UINT16 result = x;
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return result | mask;
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}
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static void P_LoadExtendedNodes(UINT8 *data, boolean xgl3)
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{
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node_t *mn;
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size_t i, j, k;
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for (i = 0, mn = nodes; i < numnodes; i++, mn++)
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{
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// Splitter
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mn->x = xgl3 ? READINT32(data) : (READINT16(data) << FRACBITS);
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mn->y = xgl3 ? READINT32(data) : (READINT16(data) << FRACBITS);
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mn->dx = xgl3 ? READINT32(data) : (READINT16(data) << FRACBITS);
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mn->dy = xgl3 ? READINT32(data) : (READINT16(data) << FRACBITS);
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// Bounding boxes
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for (j = 0; j < 2; j++)
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for (k = 0; k < 4; k++)
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mn->bbox[j][k] = READINT16(data) << FRACBITS;
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//Children
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mn->children[0] = ShrinkNodeID(READUINT32(data)); /// \todo Use UINT32 for node children in a future, instead?
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mn->children[1] = ShrinkNodeID(READUINT32(data));
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}
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}
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static void P_LoadExtendedBSP(UINT8 *data, nodetype_t nodetype)
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{
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{
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size_t i, k;
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size_t i, k;
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INT16 m;
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INT16 m;
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seg_t *seg;
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if (!P_LoadExtraVertices(data))
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return;
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// Subsectors
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// Subsectors
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numsubsectors = READUINT32(data);
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numsubsectors = READUINT32(data);
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@ -1615,6 +1587,7 @@ static void P_LoadExtendedBSP(UINT8 *data, nodetype_t nodetype)
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for (i = 0, k = 0; i < numsubsectors; i++)
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for (i = 0, k = 0; i < numsubsectors; i++)
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{
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{
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subsectors[i].firstline = k;
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subsectors[i].firstline = k;
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P_InitializeSubsector(&subsectors[i]);
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switch (nodetype)
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switch (nodetype)
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{
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{
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@ -1655,34 +1628,57 @@ static void P_LoadExtendedBSP(UINT8 *data, nodetype_t nodetype)
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}
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}
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}
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}
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for (i = 0, seg = segs; i < numsegs; i++, seg++)
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{
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{
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INT32 side;
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vertex_t *v1 = seg->v1;
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seg_t *li;
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vertex_t *v2 = seg->v2;
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seg->angle = R_PointToAngle2(v1->x, v1->y, v2->x, v2->y);
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seg->offset = FixedHypot(v1->x - seg->linedef->v1->x, v1->y - seg->linedef->v1->y);
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seg->sidedef = &sides[seg->linedef->sidenum[seg->side]];
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seg->frontsector = seg->sidedef->sector;
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if (seg->linedef->flags & ML_TWOSIDED)
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seg->backsector = sides[seg->linedef->sidenum[seg->side ^ 1]].sector;
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else
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seg->backsector = 0;
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for (i = 0, li = segs; i < numsegs; i++, li++)
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seg->numlights = 0;
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{
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seg->rlights = NULL;
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vertex_t *v1 = li->v1;
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vertex_t *v2 = li->v2;
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li->angle = R_PointToAngle2(v1->x, v1->y, v2->x, v2->y);
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li->offset = FixedHypot(v1->x - li->linedef->v1->x, v1->y - li->linedef->v1->y);
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side = li->side;
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li->sidedef = &sides[li->linedef->sidenum[side]];
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li->frontsector = sides[li->linedef->sidenum[side]].sector;
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if (li->linedef->flags & ML_TWOSIDED)
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li->backsector = sides[li->linedef->sidenum[side ^ 1]].sector;
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else
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li->backsector = 0;
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segs[i].numlights = 0;
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segs[i].rlights = NULL;
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}
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}
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}
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}
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// Auxiliary function: Shrink node ID from 32-bit to 16-bit.
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static UINT16 ShrinkNodeID(UINT32 x) {
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UINT16 mask = (x >> 16) & 0xC000;
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UINT16 result = x;
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return result | mask;
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}
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static void P_LoadExtendedNodes(UINT8 *data, nodetype_t nodetype)
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{
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node_t *mn;
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size_t i, j, k;
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boolean xgl3 = (nodetype == NT_XGL3);
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// Nodes
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numnodes = READINT32(data);
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numnodes = READINT32(data);
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nodes = Z_Calloc(numnodes*sizeof(*nodes), PU_LEVEL, NULL);
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nodes = Z_Calloc(numnodes*sizeof(*nodes), PU_LEVEL, NULL);
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P_LoadExtendedNodes(data, nodetype == NT_XGL3);
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for (i = 0, mn = nodes; i < numnodes; i++, mn++)
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{
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// Splitter
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mn->x = xgl3 ? READINT32(data) : (READINT16(data) << FRACBITS);
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mn->y = xgl3 ? READINT32(data) : (READINT16(data) << FRACBITS);
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mn->dx = xgl3 ? READINT32(data) : (READINT16(data) << FRACBITS);
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mn->dy = xgl3 ? READINT32(data) : (READINT16(data) << FRACBITS);
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// Bounding boxes
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for (j = 0; j < 2; j++)
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for (k = 0; k < 4; k++)
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mn->bbox[j][k] = READINT16(data) << FRACBITS;
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//Children
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mn->children[0] = ShrinkNodeID(READUINT32(data)); /// \todo Use UINT32 for node children in a future, instead?
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mn->children[1] = ShrinkNodeID(READUINT32(data));
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}
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}
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}
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static void P_LoadMapBSP(const virtres_t *virt)
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static void P_LoadMapBSP(const virtres_t *virt)
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@ -1720,7 +1716,11 @@ static void P_LoadMapBSP(const virtres_t *virt)
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case NT_XNOD:
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case NT_XNOD:
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case NT_XGLN:
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case NT_XGLN:
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case NT_XGL3:
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case NT_XGL3:
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P_LoadExtendedBSP(virtnodes->data, nodetype);
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if (!P_LoadExtraVertices(virtnodes->data))
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return;
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if (!P_LoadExtendedSubsectorsAndSegs(virtnodes->data, nodetype))
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return;
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P_LoadExtendedNodes(virtnodes->data, nodetype);
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break;
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break;
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default:
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default:
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CONS_Alert(CONS_WARNING, "Unsupported BSP format detected.\n");
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CONS_Alert(CONS_WARNING, "Unsupported BSP format detected.\n");
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