]> de.git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - portals.c
changed master server list around a bit (added rick.cube-sol.net and my master server...
[xonotic/darkplaces.git] / portals.c
index 7b91f39c9a76df23c01fff13422632ec94eea385..554177ad849ea74da3c9c77049fe259f71831ff8 100644 (file)
--- a/portals.c
+++ b/portals.c
@@ -5,17 +5,15 @@
 #define MAXRECURSIVEPORTALS 256
 
 static tinyplane_t portalplanes[MAXRECURSIVEPORTALPLANES];
-static int portalplanestack[MAXRECURSIVEPORTALS];
 static int portalplanecount;
 static int ranoutofportalplanes;
 static int ranoutofportals;
 static float portaltemppoints[2][256][3];
 static float portaltemppoints2[256][3];
 static int portal_markid = 0;
-//float viewportalpoints[16*3];
 static float boxpoints[4*3];
 
-int R_ClipPolygonToPlane(float *in, float *out, int inpoints, int maxoutpoints, tinyplane_t *p)
+int Portal_ClipPolygonToPlane(float *in, float *out, int inpoints, int maxoutpoints, tinyplane_t *p)
 {
        int i, outpoints, prevside, side;
        float *prevpoint, prevdist, dist, dot;
@@ -67,20 +65,8 @@ begin:
        return outpoints;
 }
 
-/*
-void R_TriangleToPlane(vec3_t point1, vec3_t point2, vec3_t point3, tinyplane_t *p)
-{
-       vec3_t v1, v2;
-       VectorSubtract(point1, point2, v1);
-       VectorSubtract(point3, point2, v2);
-       CrossProduct(v1, v2, p->normal);
-//     VectorNormalize(p->normal);
-       VectorNormalizeFast(p->normal);
-       p->dist = DotProduct(point1, p->normal);
-}
-*/
 
-int R_PortalThroughPortalPlanes(tinyplane_t *clipplanes, int clipnumplanes, float *targpoints, int targnumpoints, float *out, int maxpoints)
+int Portal_PortalThroughPortalPlanes(tinyplane_t *clipplanes, int clipnumplanes, float *targpoints, int targnumpoints, float *out, int maxpoints)
 {
        int numpoints, i;
        if (targnumpoints < 3)
@@ -91,7 +77,7 @@ int R_PortalThroughPortalPlanes(tinyplane_t *clipplanes, int clipnumplanes, floa
        memcpy(&portaltemppoints[0][0][0], targpoints, numpoints * 3 * sizeof(float));
        for (i = 0;i < clipnumplanes;i++)
        {
-               numpoints = R_ClipPolygonToPlane(&portaltemppoints[0][0][0], &portaltemppoints[1][0][0], numpoints, 256, clipplanes + i);
+               numpoints = Portal_ClipPolygonToPlane(&portaltemppoints[0][0][0], &portaltemppoints[1][0][0], numpoints, 256, clipplanes + i);
                if (numpoints < 3)
                        return numpoints;
                memcpy(&portaltemppoints[0][0][0], &portaltemppoints[1][0][0], numpoints * 3 * sizeof(float));
@@ -118,7 +104,7 @@ int Portal_RecursiveFlowSearch (mleaf_t *leaf, vec3_t eye, int firstclipplane, i
                // only flow through portals facing away from the viewer
                if (PlaneDiff(eye, (&p->plane)) < 0)
                {
-                       newpoints = R_PortalThroughPortalPlanes(&portalplanes[firstclipplane], numclipplanes, (float *) p->points, p->numpoints, &portaltemppoints2[0][0], 256);
+                       newpoints = Portal_PortalThroughPortalPlanes(&portalplanes[firstclipplane], numclipplanes, (float *) p->points, p->numpoints, &portaltemppoints2[0][0], 256);
                        if (newpoints < 3)
                                continue;
                        else if (firstclipplane + numclipplanes + newpoints > MAXRECURSIVEPORTALPLANES)
@@ -135,7 +121,6 @@ int Portal_RecursiveFlowSearch (mleaf_t *leaf, vec3_t eye, int firstclipplane, i
                                newplanes = &portalplanes[firstclipplane + numclipplanes];
                                for (prev = newpoints - 1, i = 0;i < newpoints;prev = i, i++)
                                {
-//                                     R_TriangleToPlane(eye, portaltemppoints2[i], portaltemppoints2[prev], newplanes + i);
                                        VectorSubtract(eye, portaltemppoints2[i], v1);
                                        VectorSubtract(portaltemppoints2[prev], portaltemppoints2[i], v2);
                                        CrossProduct(v1, v2, newplanes[i].normal);
@@ -202,8 +187,13 @@ int Portal_CheckPolygon(model_t *model, vec3_t eye, float *polypoints, int numpo
        mleaf_t *eyeleaf;
        vec3_t center, v1, v2;
 
+       // if there is no model, it can not block visibility
+       if (model == NULL)
+               return true;
+
        portal_markid++;
 
+       Mod_CheckLoaded(model);
        Portal_PolygonRecursiveMarkLeafs(model->nodes, polypoints, numpoints);
 
        eyeleaf = Mod_PointInLeaf(eye, model);
@@ -218,7 +208,6 @@ int Portal_CheckPolygon(model_t *model, vec3_t eye, float *polypoints, int numpo
        // calculate the planes, and make sure the polygon can see it's own center
        for (prev = numpoints - 1, i = 0;i < numpoints;prev = i, i++)
        {
-//             R_TriangleToPlane(eye, portaltemppoints2[i], portaltemppoints2[prev], newplanes + i);
                VectorSubtract(eye, (&polypoints[i * 3]), v1);
                VectorSubtract((&polypoints[prev * 3]), (&polypoints[i * 3]), v2);
                CrossProduct(v1, v2, portalplanes[i].normal);
@@ -329,3 +318,4 @@ int Portal_CheckBox(model_t *model, vec3_t eye, vec3_t a, vec3_t b)
 
        return false;
 }
+