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Clean up R_RocketTrail_trail a bit.

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In preparation for a redesign of the trail creation.
This commit is contained in:
Bill Currie 2016-01-27 20:51:10 +09:00
parent fff6d799b6
commit db6e0faae4
1 changed files with 30 additions and 14 deletions
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44
libs/video/renderer/glsl/glsl_particles.c
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@ -749,6 +749,34 @@ add_trail_to_ent (entity_t *ent)
trails_active = ent->trail; trails_active = ent->trail;
} }
static inline particle_t *
new_trail_point (const vec3_t origin, float pscale, float percent)
{
particle_t *point;
int ramp;
point = new_point ();
VectorCopy (origin, point->org);
point->color = ramp3[ramp = mtwist_rand (&mt) & 3];
point->tex = part_tex_smoke;
point->scale = pscale + percent * 4.0;
point->alpha = 0.5 + qfrandom (0.125) - percent * 0.40;
VectorCopy (vec3_origin, point->vel);
point->die = vr_data.realtime + 2.0 - percent * 2.0;
point->ramp = ramp;
point->physics = R_ParticlePhysics ("pt_float");
return point;
}
static inline void
add_point_to_trail (trail_t *trail, particle_t *point)
{
*trail->head = point;
trail->head = &point->next;
trail->num_points++;
}
static void static void
R_RocketTrail_trail (entity_t *ent) R_RocketTrail_trail (entity_t *ent)
{ {
@ -768,25 +796,13 @@ R_RocketTrail_trail (entity_t *ent)
pscale = 1.5 + qfrandom (1.5); pscale = 1.5 + qfrandom (1.5);
while (len < maxlen) { while (len < maxlen) {
int ramp;
pscalenext = 1.5 + qfrandom (1.5); pscalenext = 1.5 + qfrandom (1.5);
dist = (pscale + pscalenext) * 3.0; dist = (pscale + pscalenext) * 3.0;
percent = len * origlen; percent = len * origlen;
point = new_point (); point = new_trail_point (old_origin, pscale, percent);
VectorCopy (old_origin, point->org);
point->color = ramp3[ramp = mtwist_rand (&mt) & 3];
point->tex = part_tex_smoke;
point->scale = pscale + percent * 4.0;
point->alpha = 0.5 + qfrandom (0.125) - percent * 0.40;
VectorCopy (vec3_origin, point->vel);
point->die = vr_data.realtime + 2.0 - percent * 2.0;
point->ramp = ramp;
point->physics = R_ParticlePhysics ("pt_fire");
*ent->trail->head = point; add_point_to_trail (ent->trail, point);
ent->trail->head = &point->next;
ent->trail->num_points++;
len += dist; len += dist;
VectorMultAdd (old_origin, len, vec, old_origin); VectorMultAdd (old_origin, len, vec, old_origin);