Treat attempts to draw trails with pointparticles as zero length trails.

This means they will get dlight, and count/countabsolute do get applied.

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@11990 d7cf8633-e32d-0410-b094-e92efae38249
::stable-branch::merge=2e0f64a4030953216fc8a2ddb8edde7964446258

diff --git a/cl_particles.c b/cl_particles.c
index bccd26e1463f52660966fc54ba9e4f4078baaff8..e6d404e223516eb9aa19e8cf8a61b58775d69119 100644 (file)
--- a/cl_particles.c
+++ b/cl_particles.c
@@ -1505,10 +1505,6 @@ static void CL_NewParticlesFromEffectinfo(int effectnameindex, float pcount, con
                                if ((info->flags & PARTICLEEFFECT_NOTUNDERWATER) && underwater)
                                        continue;
 
-                               // trail effects may only ever be drawn as trail
-                               if (!drawastrail && definedastrail)
-                                       continue;
-
                                // spawn a dlight if requested
                                if (info->lightradiusstart > 0 && spawndlight)
                                {
@@ -1564,6 +1560,9 @@ static void CL_NewParticlesFromEffectinfo(int effectnameindex, float pcount, con
                                }
                                else if (info->orientation == PARTICLE_HBEAM)
                                {
+                                       if (!drawastrail)
+                                               continue;
+
                                        AnglesFromVectors(angles, traildir, NULL, false);
                                        AngleVectors(angles, forward, right, up);
                                        VectorMAMAM(info->relativeoriginoffset[0], forward, info->relativeoriginoffset[1], right, info->relativeoriginoffset[2], up, trailpos);
@@ -1572,6 +1571,7 @@ static void CL_NewParticlesFromEffectinfo(int effectnameindex, float pcount, con
                                }
                                else
                                {
+                                       float cnt;
                                        if (!cl_particles.integer)
                                                continue;
                                        switch (info->particletype)
@@ -1584,35 +1584,42 @@ static void CL_NewParticlesFromEffectinfo(int effectnameindex, float pcount, con
                                        case pt_snow: if (!cl_particles_snow.integer) continue;break;
                                        default: break;
                                        }
-                                       VectorCopy(originmins, trailpos);
+
+                                       cnt = info->countabsolute;
+                                       cnt += (pcount * info->countmultiplier) * cl_particles_quality.value;
+                                       // if drawastrail is not set, we will
+                                       // use the regular cnt-based random
+                                       // particle spawning at the center; so
+                                       // do NOT apply trailspacing then!
+                                       if (drawastrail && definedastrail)
+                                               cnt += (traillen / info->trailspacing) * cl_particles_quality.value;
+                                       cnt *= fade;
+                                       if (cnt == 0)
+                                               continue;  // nothing to draw
+                                       info->particleaccumulator += cnt;
+
+                                       if (drawastrail || definedastrail)
+                                               immediatebloodstain = false;
+                                       else
+                                               immediatebloodstain =
+                                                       ((cl_decals_newsystem_immediatebloodstain.integer >= 1) && (info->particletype == pt_blood))
+                                                       ||
+                                                       ((cl_decals_newsystem_immediatebloodstain.integer >= 2) && staintex);
+
                                        if (drawastrail)
                                        {
-                                               float cnt = info->countabsolute;
-                                               cnt += (pcount * info->countmultiplier) * cl_particles_quality.value;
-                                               if (info->trailspacing > 0)
-                                                       cnt += (traillen / info->trailspacing) * cl_particles_quality.value;
-                                               cnt *= fade;
-                                               info->particleaccumulator += cnt;
+                                               VectorCopy(originmins, trailpos);
                                                trailstep = traillen / cnt;
-                                               immediatebloodstain = false;
-
                                                AnglesFromVectors(angles, traildir, NULL, false);
                                        }
                                        else
                                        {
-                                               float cnt = info->countabsolute;
-                                               cnt += (pcount * info->countmultiplier) * cl_particles_quality.value;
-                                               cnt *= fade;
-                                               info->particleaccumulator += cnt;
+                                               VectorCopy(center, trailpos);
                                                trailstep = 0;
-                                               immediatebloodstain =
-                                                       ((cl_decals_newsystem_immediatebloodstain.integer >= 1) && (info->particletype == pt_blood))
-                                                       ||
-                                                       ((cl_decals_newsystem_immediatebloodstain.integer >= 2) && staintex);
-
                                                VectorMAM(0.5f, velocitymins, 0.5f, velocitymaxs, velocity);
                                                AnglesFromVectors(angles, velocity, NULL, false);
                                        }
+
                                        AngleVectors(angles, forward, right, up);
                                        VectorMAMAMAM(1.0f, trailpos, info->relativeoriginoffset[0], forward, info->relativeoriginoffset[1], right, info->relativeoriginoffset[2], up, trailpos);
                                        VectorMAMAM(info->relativevelocityoffset[0], forward, info->relativevelocityoffset[1], right, info->relativevelocityoffset[2], up, velocity);
@@ -1624,7 +1631,7 @@ static void CL_NewParticlesFromEffectinfo(int effectnameindex, float pcount, con
                                                        tex = (int)lhrandom(info->tex[0], info->tex[1]);
                                                        tex = min(tex, info->tex[1] - 1);
                                                }
-                                               if (!trailstep)
+                                               if (!(drawastrail || definedastrail))
                                                {
                                                        trailpos[0] = lhrandom(originmins[0], originmaxs[0]);
                                                        trailpos[1] = lhrandom(originmins[1], originmaxs[1]);