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Move loading of extended subsectors and segs into its own function

This commit is contained in:
MascaraSnake 2019-12-29 19:54:04 +01:00
parent c287b86fab
commit 36f86077da
1 changed files with 63 additions and 63 deletions
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126
src/p_setup.c
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@ -1343,6 +1343,15 @@ static void P_LoadMapData(const virtres_t *virt)
memcpy(spawnsides, sides, numsides * sizeof (*sides));
}
static void P_InitializeSubsector(subsector_t *ss)
{
ss->sector = NULL;
#ifdef FLOORSPLATS
ss->splats = NULL;
#endif
ss->validcount = 0;
}
static inline void P_LoadSubsectors(UINT8 *data)
{
mapsubsector_t *ms = (mapsubsector_t*)data;
@ -1351,13 +1360,9 @@ static inline void P_LoadSubsectors(UINT8 *data)
for (i = 0; i < numsubsectors; i++, ss++, ms++)
{
ss->sector = NULL;
ss->numlines = SHORT(ms->numsegs);
ss->firstline = SHORT(ms->firstseg);
#ifdef FLOORSPLATS
ss->splats = NULL;
#endif
ss->validcount = 0;
P_InitializeSubsector(ss);
}
}
@ -1562,44 +1567,11 @@ static boolean P_LoadExtraVertices(UINT8 *data)
return true;
}
// Auxiliary function: Shrink node ID from 32-bit to 16-bit.
static UINT16 ShrinkNodeID(UINT32 x) {
UINT16 mask = (x >> 16) & 0xC000;
UINT16 result = x;
return result | mask;
}
static void P_LoadExtendedNodes(UINT8 *data, boolean xgl3)
{
node_t *mn;
size_t i, j, k;
for (i = 0, mn = nodes; i < numnodes; i++, mn++)
{
// Splitter
mn->x = xgl3 ? READINT32(data) : (READINT16(data) << FRACBITS);
mn->y = xgl3 ? READINT32(data) : (READINT16(data) << FRACBITS);
mn->dx = xgl3 ? READINT32(data) : (READINT16(data) << FRACBITS);
mn->dy = xgl3 ? READINT32(data) : (READINT16(data) << FRACBITS);
// Bounding boxes
for (j = 0; j < 2; j++)
for (k = 0; k < 4; k++)
mn->bbox[j][k] = READINT16(data) << FRACBITS;
//Children
mn->children[0] = ShrinkNodeID(READUINT32(data)); /// \todo Use UINT32 for node children in a future, instead?
mn->children[1] = ShrinkNodeID(READUINT32(data));
}
}
static void P_LoadExtendedBSP(UINT8 *data, nodetype_t nodetype)
static boolean P_LoadExtendedSubsectorsAndSegs(UINT8 *data, nodetype_t nodetype)
{
size_t i, k;
INT16 m;
if (!P_LoadExtraVertices(data))
return;
seg_t *seg;
// Subsectors
numsubsectors = READUINT32(data);
@ -1615,6 +1587,7 @@ static void P_LoadExtendedBSP(UINT8 *data, nodetype_t nodetype)
for (i = 0, k = 0; i < numsubsectors; i++)
{
subsectors[i].firstline = k;
P_InitializeSubsector(&subsectors[i]);
switch (nodetype)
{
@ -1655,34 +1628,57 @@ static void P_LoadExtendedBSP(UINT8 *data, nodetype_t nodetype)
}
}
for (i = 0, seg = segs; i < numsegs; i++, seg++)
{
INT32 side;
seg_t *li;
vertex_t *v1 = seg->v1;
vertex_t *v2 = seg->v2;
seg->angle = R_PointToAngle2(v1->x, v1->y, v2->x, v2->y);
seg->offset = FixedHypot(v1->x - seg->linedef->v1->x, v1->y - seg->linedef->v1->y);
seg->sidedef = &sides[seg->linedef->sidenum[seg->side]];
seg->frontsector = seg->sidedef->sector;
if (seg->linedef->flags & ML_TWOSIDED)
seg->backsector = sides[seg->linedef->sidenum[seg->side ^ 1]].sector;
else
seg->backsector = 0;
for (i = 0, li = segs; i < numsegs; i++, li++)
{
vertex_t *v1 = li->v1;
vertex_t *v2 = li->v2;
li->angle = R_PointToAngle2(v1->x, v1->y, v2->x, v2->y);
li->offset = FixedHypot(v1->x - li->linedef->v1->x, v1->y - li->linedef->v1->y);
side = li->side;
li->sidedef = &sides[li->linedef->sidenum[side]];
li->frontsector = sides[li->linedef->sidenum[side]].sector;
if (li->linedef->flags & ML_TWOSIDED)
li->backsector = sides[li->linedef->sidenum[side ^ 1]].sector;
else
li->backsector = 0;
segs[i].numlights = 0;
segs[i].rlights = NULL;
}
seg->numlights = 0;
seg->rlights = NULL;
}
}
// Auxiliary function: Shrink node ID from 32-bit to 16-bit.
static UINT16 ShrinkNodeID(UINT32 x) {
UINT16 mask = (x >> 16) & 0xC000;
UINT16 result = x;
return result | mask;
}
static void P_LoadExtendedNodes(UINT8 *data, nodetype_t nodetype)
{
node_t *mn;
size_t i, j, k;
boolean xgl3 = (nodetype == NT_XGL3);
// Nodes
numnodes = READINT32(data);
nodes = Z_Calloc(numnodes*sizeof(*nodes), PU_LEVEL, NULL);
P_LoadExtendedNodes(data, nodetype == NT_XGL3);
for (i = 0, mn = nodes; i < numnodes; i++, mn++)
{
// Splitter
mn->x = xgl3 ? READINT32(data) : (READINT16(data) << FRACBITS);
mn->y = xgl3 ? READINT32(data) : (READINT16(data) << FRACBITS);
mn->dx = xgl3 ? READINT32(data) : (READINT16(data) << FRACBITS);
mn->dy = xgl3 ? READINT32(data) : (READINT16(data) << FRACBITS);
// Bounding boxes
for (j = 0; j < 2; j++)
for (k = 0; k < 4; k++)
mn->bbox[j][k] = READINT16(data) << FRACBITS;
//Children
mn->children[0] = ShrinkNodeID(READUINT32(data)); /// \todo Use UINT32 for node children in a future, instead?
mn->children[1] = ShrinkNodeID(READUINT32(data));
}
}
static void P_LoadMapBSP(const virtres_t *virt)
@ -1720,7 +1716,11 @@ static void P_LoadMapBSP(const virtres_t *virt)
case NT_XNOD:
case NT_XGLN:
case NT_XGL3:
P_LoadExtendedBSP(virtnodes->data, nodetype);
if (!P_LoadExtraVertices(virtnodes->data))
return;
if (!P_LoadExtendedSubsectorsAndSegs(virtnodes->data, nodetype))
return;
P_LoadExtendedNodes(virtnodes->data, nodetype);
break;
default:
CONS_Alert(CONS_WARNING, "Unsupported BSP format detected.\n");