/**
* @brief Yields the contents mask (bitwise OR) for the specified point. The
* world model and all solids are checked.
*/
int32_t Cl_PointContents(const vec3_t point) {
int32_t contents = Cm_PointContents(point, 0);
for (uint16_t i = 0; i < cl.frame.num_entities; i++) {
const uint32_t snum = (cl.frame.entity_state + i) & ENTITY_STATE_MASK;
const entity_state_t *s = &cl.entity_states[snum];
if (s->solid < SOLID_BOX) {
continue;
}
const cl_entity_t *ent = &cl.entities[s->number];
if (ent == cl.entity) {
continue;
}
const int32_t head_node = Cl_HullForEntity(s);
contents |= Cm_TransformedPointContents(point, head_node, &ent->inverse_matrix);
}
return contents;
}
/*
* @brief Clips the specified trace to other solid entities in the frame.
*/
static void Cl_ClipTraceToEntities(cl_trace_t *trace) {
for (uint16_t i = 0; i < cl.frame.num_entities; i++) {
const uint32_t snum = (cl.frame.entity_state + i) & ENTITY_STATE_MASK;
const entity_state_t *s = &cl.entity_states[snum];
if (s->solid < SOLID_BOX)
continue;
if (s->number == trace->skip)
continue;
if (s->number == cl.client_num + 1)
continue;
const int32_t head_node = Cl_HullForEntity(s);
const cl_entity_t *ent = &cl.entities[s->number];
cm_trace_t tr = Cm_TransformedBoxTrace(trace->start, trace->end, trace->mins, trace->maxs,
head_node, trace->contents, &ent->matrix, &ent->inverse_matrix);
if (tr.start_solid || tr.fraction < trace->trace.fraction) {
trace->trace = tr;
trace->trace.ent = (struct g_entity_s *) (intptr_t) s->number;
if (tr.start_solid)
return;
}
}
}
