public static int SV_HullPointContents(hull_t hull, int num, ref Vector3 p)
{
while (num >= 0)
{
if (num < hull.firstclipnode || num > hull.lastclipnode)
{
Sys_Error("SV_HullPointContents: bad node number");
}
short[] node_children = hull.clipnodes[num].children;
mplane_t plane = hull.planes[hull.clipnodes[num].planenum];
float d;
if (plane.type < 3)
{
d = Mathlib.Comp(ref p, plane.type) - plane.dist;
}
else
{
d = Vector3.Dot(plane.normal, p) - plane.dist;
}
if (d < 0)
{
num = node_children[1];
}
else
{
num = node_children[0];
}
}
return(num);
}
public static void SV_TouchLinks(edict_t ent, areanode_t node)
{
// touch linked edicts
link_t next;
for (link_t l = node.trigger_edicts.Next; l != node.trigger_edicts; l = next)
{
next = l.Next;
edict_t touch = (edict_t)l.Owner;// EDICT_FROM_AREA(l);
if (touch == ent)
{
continue;
}
if (touch.v.touch == 0 || touch.v.solid != q_shared.SOLID_TRIGGER)
{
continue;
}
if (ent.v.absmin.x > touch.v.absmax.x || ent.v.absmin.y > touch.v.absmax.y ||
ent.v.absmin.z > touch.v.absmax.z || ent.v.absmax.x < touch.v.absmin.x ||
ent.v.absmax.y < touch.v.absmin.y || ent.v.absmax.z < touch.v.absmin.z)
{
continue;
}
int old_self = pr_global_struct.self;
int old_other = pr_global_struct.other;
pr_global_struct.self = EDICT_TO_PROG(touch);
pr_global_struct.other = EDICT_TO_PROG(ent);
pr_global_struct.time = (float)sv.time;
PR_ExecuteProgram(touch.v.touch);
pr_global_struct.self = old_self;
pr_global_struct.other = old_other;
}
// recurse down both sides
if (node.axis == -1)
{
return;
}
if (Mathlib.Comp(ref ent.v.absmax, node.axis) > node.dist)
{
SV_TouchLinks(ent, node.children[0]);
}
if (Mathlib.Comp(ref ent.v.absmin, node.axis) < node.dist)
{
SV_TouchLinks(ent, node.children[1]);
}
}
static void PF_makestatic()
{
edict_t ent = G_EDICT(q_shared.OFS_PARM0);
MsgWriter msg = sv.signon;
msg.MSG_WriteByte(q_shared.svc_spawnstatic);
msg.MSG_WriteByte(SV_ModelIndex(GetString(ent.v.model)));
msg.MSG_WriteByte((int)ent.v.frame);
msg.MSG_WriteByte((int)ent.v.colormap);
msg.MSG_WriteByte((int)ent.v.skin);
for (int i = 0; i < 3; i++)
{
msg.MSG_WriteCoord(Mathlib.Comp(ref ent.v.origin, i));
msg.MSG_WriteAngle(Mathlib.Comp(ref ent.v.angles, i));
}
// throw the entity away now
ED_Free(ent);
}
public static void SV_LinkEdict(edict_t ent, bool touch_triggers)
{
if (ent.area.Prev != null)
{
SV_UnlinkEdict(ent); // unlink from old position
}
if (ent == sv.edicts[0])
{
return; // don't add the world
}
if (ent.free)
{
return;
}
// set the abs box
Mathlib.VectorAdd(ref ent.v.origin, ref ent.v.mins, out ent.v.absmin);
Mathlib.VectorAdd(ref ent.v.origin, ref ent.v.maxs, out ent.v.absmax);
//
// to make items easier to pick up and allow them to be grabbed off
// of shelves, the abs sizes are expanded
//
if (((int)ent.v.flags & q_shared.FL_ITEM) != 0)
{
ent.v.absmin.x -= 15;
ent.v.absmin.y -= 15;
ent.v.absmax.x += 15;
ent.v.absmax.y += 15;
}
else
{ // because movement is clipped an epsilon away from an actual edge,
// we must fully check even when bounding boxes don't quite touch
ent.v.absmin.x -= 1;
ent.v.absmin.y -= 1;
ent.v.absmin.z -= 1;
ent.v.absmax.x += 1;
ent.v.absmax.y += 1;
ent.v.absmax.z += 1;
}
// link to PVS leafs
ent.num_leafs = 0;
if (ent.v.modelindex != 0)
{
SV_FindTouchedLeafs(ent, sv.worldmodel.nodes[0]);
}
if (ent.v.solid == q_shared.SOLID_NOT)
{
return;
}
// find the first node that the ent's box crosses
areanode_t node = sv_areanodes[0];
while (true)
{
if (node.axis == -1)
{
break;
}
if (Mathlib.Comp(ref ent.v.absmin, node.axis) > node.dist)
{
node = node.children[0];
}
else if (Mathlib.Comp(ref ent.v.absmax, node.axis) < node.dist)
{
node = node.children[1];
}
else
{
break; // crosses the node
}
}
// link it in
if (ent.v.solid == q_shared.SOLID_TRIGGER)
{
ent.area.InsertBefore(node.trigger_edicts);
}
else
{
ent.area.InsertBefore(node.solid_edicts);
}
// if touch_triggers, touch all entities at this node and decend for more
if (touch_triggers)
{
SV_TouchLinks(ent, sv_areanodes[0]);
}
}
public static void SV_ClipToLinks(areanode_t node, moveclip_t clip)
{
link_t next;
trace_t trace;
// touch linked edicts
for (link_t l = node.solid_edicts.Next; l != node.solid_edicts; l = next)
{
next = l.Next;
edict_t touch = (edict_t)l.Owner;// EDICT_FROM_AREA(l);
if (touch.v.solid == q_shared.SOLID_NOT)
{
continue;
}
if (touch == clip.passedict)
{
continue;
}
if (touch.v.solid == q_shared.SOLID_TRIGGER)
{
Sys_Error("Trigger in clipping list");
}
if (clip.type == q_shared.MOVE_NOMONSTERS && touch.v.solid != q_shared.SOLID_BSP)
{
continue;
}
if (clip.boxmins.X > touch.v.absmax.x || clip.boxmins.Y > touch.v.absmax.y ||
clip.boxmins.Z > touch.v.absmax.z || clip.boxmaxs.X < touch.v.absmin.x ||
clip.boxmaxs.Y < touch.v.absmin.y || clip.boxmaxs.Z < touch.v.absmin.z)
{
continue;
}
if (clip.passedict != null && clip.passedict.v.size.x != 0 && touch.v.size.x == 0)
{
continue; // points never interact
}
// might intersect, so do an exact clip
if (clip.trace.allsolid)
{
return;
}
if (clip.passedict != null)
{
if (PROG_TO_EDICT(touch.v.owner) == clip.passedict)
{
continue; // don't clip against own missiles
}
if (PROG_TO_EDICT(clip.passedict.v.owner) == touch)
{
continue; // don't clip against owner
}
}
if (((int)touch.v.flags & q_shared.FL_MONSTER) != 0)
{
trace = SV_ClipMoveToEntity(touch, ref clip.start, ref clip.mins2, ref clip.maxs2, ref clip.end);
}
else
{
trace = SV_ClipMoveToEntity(touch, ref clip.start, ref clip.mins, ref clip.maxs, ref clip.end);
}
if (trace.allsolid || trace.startsolid || trace.fraction < clip.trace.fraction)
{
trace.ent = touch;
if (clip.trace.startsolid)
{
clip.trace = trace;
clip.trace.startsolid = true;
}
else
{
clip.trace = trace;
}
}
else if (trace.startsolid)
{
clip.trace.startsolid = true;
}
}
// recurse down both sides
if (node.axis == -1)
{
return;
}
if (Mathlib.Comp(ref clip.boxmaxs, node.axis) > node.dist)
{
SV_ClipToLinks(node.children[0], clip);
}
if (Mathlib.Comp(ref clip.boxmins, node.axis) < node.dist)
{
SV_ClipToLinks(node.children[1], clip);
}
}
public static bool SV_RecursiveHullCheck(hull_t hull, int num, float p1f, float p2f, ref Vector3 p1, ref Vector3 p2, trace_t trace)
{
// check for empty
if (num < 0)
{
if (num != q_shared.CONTENTS_SOLID)
{
trace.allsolid = false;
if (num == q_shared.CONTENTS_EMPTY)
{
trace.inopen = true;
}
else
{
trace.inwater = true;
}
}
else
{
trace.startsolid = true;
}
return(true); // empty
}
if (num < hull.firstclipnode || num > hull.lastclipnode)
{
Sys_Error("SV_RecursiveHullCheck: bad node number");
}
//
// find the point distances
//
short[] node_children = hull.clipnodes[num].children;
mplane_t plane = hull.planes[hull.clipnodes[num].planenum];
float t1, t2;
if (plane.type < 3)
{
t1 = Mathlib.Comp(ref p1, plane.type) - plane.dist;
t2 = Mathlib.Comp(ref p2, plane.type) - plane.dist;
}
else
{
t1 = Vector3.Dot(plane.normal, p1) - plane.dist;
t2 = Vector3.Dot(plane.normal, p2) - plane.dist;
}
if (t1 >= 0 && t2 >= 0)
{
return(SV_RecursiveHullCheck(hull, node_children[0], p1f, p2f, ref p1, ref p2, trace));
}
if (t1 < 0 && t2 < 0)
{
return(SV_RecursiveHullCheck(hull, node_children[1], p1f, p2f, ref p1, ref p2, trace));
}
// put the crosspoint DIST_EPSILON pixels on the near side
float frac;
if (t1 < 0)
{
frac = (t1 + q_shared.DIST_EPSILON) / (t1 - t2);
}
else
{
frac = (t1 - q_shared.DIST_EPSILON) / (t1 - t2);
}
if (frac < 0)
{
frac = 0;
}
if (frac > 1)
{
frac = 1;
}
float midf = p1f + (p2f - p1f) * frac;
Vector3 mid = p1 + (p2 - p1) * frac;
int side = (t1 < 0) ? 1 : 0;
// move up to the node
if (!SV_RecursiveHullCheck(hull, node_children[side], p1f, midf, ref p1, ref mid, trace))
{
return(false);
}
if (SV_HullPointContents(hull, node_children[side ^ 1], ref mid) != q_shared.CONTENTS_SOLID)
{
// go past the node
return(SV_RecursiveHullCheck(hull, node_children[side ^ 1], midf, p2f, ref mid, ref p2, trace));
}
if (trace.allsolid)
{
return(false); // never got out of the solid area
}
//==================
// the other side of the node is solid, this is the impact point
//==================
if (side == 0)
{
trace.plane.normal = plane.normal;
trace.plane.dist = plane.dist;
}
else
{
trace.plane.normal = -plane.normal;
trace.plane.dist = -plane.dist;
}
while (SV_HullPointContents(hull, hull.firstclipnode, ref mid) == q_shared.CONTENTS_SOLID)
{
// shouldn't really happen, but does occasionally
frac -= 0.1f;
if (frac < 0)
{
trace.fraction = midf;
trace.endpos = mid;
Con_DPrintf("backup past 0\n");
return(false);
}
midf = p1f + (p2f - p1f) * frac;
mid = p1 + (p2 - p1) * frac;
}
trace.fraction = midf;
trace.endpos = mid;
return(false);
}
static void SubdividePolygon(int numverts, Vector3[] verts)
{
if (numverts > 60)
{
Sys_Error("numverts = {0}", numverts);
}
Vector3 mins, maxs;
BoundPoly(numverts, verts, out mins, out maxs);
float[] dist = new float[64];
for (int i = 0; i < 3; i++)
{
double m = (Mathlib.Comp(ref mins, i) + Mathlib.Comp(ref maxs, i)) * 0.5;
m = gl_subdivide_size.value * Math.Floor(m / gl_subdivide_size.value + 0.5);
if (Mathlib.Comp(ref maxs, i) - m < 8)
{
continue;
}
if (m - Mathlib.Comp(ref mins, i) < 8)
{
continue;
}
for (int j = 0; j < numverts; j++)
{
dist[j] = (float)(Mathlib.Comp(ref verts[j], i) - m);
}
Vector3[] front = new Vector3[64];
Vector3[] back = new Vector3[64];
// cut it
// wrap cases
dist[numverts] = dist[0];
verts[numverts] = verts[0]; // Uze: source array must be at least numverts + 1 elements long
int f = 0, b = 0;
for (int j = 0; j < numverts; j++)
{
if (dist[j] >= 0)
{
front[f] = verts[j];
f++;
}
if (dist[j] <= 0)
{
back[b] = verts[j];
b++;
}
if (dist[j] == 0 || dist[j + 1] == 0)
{
continue;
}
if ((dist[j] > 0) != (dist[j + 1] > 0))
{
// clip point
float frac = dist[j] / (dist[j] - dist[j + 1]);
front[f] = back[b] = verts[j] + (verts[j + 1] - verts[j]) * frac;
f++;
b++;
}
}
SubdividePolygon(f, front);
SubdividePolygon(b, back);
return;
}
glpoly_t poly = new glpoly_t();
poly.next = _WarpFace.polys;
_WarpFace.polys = poly;
poly.AllocVerts(numverts);
for (int i = 0; i < numverts; i++)
{
Copy(ref verts[i], poly.verts[i]);
float s = Vector3.Dot(verts[i], _WarpFace.texinfo.vecs[0].Xyz);
float t = Vector3.Dot(verts[i], _WarpFace.texinfo.vecs[1].Xyz);
poly.verts[i][3] = s;
poly.verts[i][4] = t;
}
}