From f405c37daccac93323081216b2484da498e2fecf Mon Sep 17 00:00:00 2001
From: Paweł Redman <pawel.redman@gmail.com>
Date: Thu, 12 Apr 2018 21:27:07 +0200
Subject: Tracing vs entities, bullets can now hit.

---
 src/world.cpp | 35 +++++++++++++++++++++++++++++------
 1 file changed, 29 insertions(+), 6 deletions(-)

(limited to 'src/world.cpp')

diff --git a/src/world.cpp b/src/world.cpp
index 05519f0..d09001c 100644
--- a/src/world.cpp
+++ b/src/world.cpp
@@ -391,12 +391,34 @@ out_no_hit:
 
 
 trace_t world_t::ray_v_ents(v2f_t start, v2f_t end, cflags_t cflags,
-                            world::entity_t *ignore)
+                            const entity_t *ignore)
 {
-	// TODO
-	trace_t res;
-	res.hit = false;
-	return res;
+	trace_t best;
+	rectf_t rect;
+
+	best.hit = false;
+	best.frac = 2.0f;
+
+	rect = rectf_t(start, end).norm();
+
+	for (entity_t *ent : get_entities(rect, cflags)) {
+		trace_t trace;
+
+		if (ent == ignore)
+			continue;
+
+		trace = ray_v_rect(start, end, ent->cmodel.bounds);
+		if (!trace.hit)
+			continue;
+
+		if (trace.frac < best.frac) {
+			best = trace;
+			best.tile = nullptr;
+			best.ent = ent;
+		}
+	}
+
+	return best;
 }
 
 
@@ -442,6 +464,7 @@ trace_t world_t::ray_v_tiles(v2f_t start, v2f_t end, cflags_t cflags)
 			res.hit = true;
 			res.end = x ^ transforms[quad];
 			res.frac = (x - start).len() / (end - start).len();
+			res.ent = nullptr;
 			res.tile = tile;
 			return res;
 		}
@@ -467,7 +490,7 @@ trace_t world_t::ray_v_tiles(v2f_t start, v2f_t end, cflags_t cflags)
 }
 
 trace_t world_t::ray_v_all(v2f_t start, v2f_t end, cflags_t cflags,
-                           world::entity_t *ignore)
+                          const entity_t *ignore)
 {
 	trace_t v_tiles, v_ents;
 
-- 
cgit