From e77c5b1e01eeb55625d8cf072bedd5a34658b865 Mon Sep 17 00:00:00 2001
From: Paweł Redman <pawel.redman@gmail.com>
Date: Fri, 13 Apr 2018 13:48:01 +0200
Subject: Better random walking so spiders don't get stuck so often.

---
 src/game/unit_spider.cpp | 18 ++++++++++++------
 src/game/units.cpp       |  6 +++++-
 2 files changed, 17 insertions(+), 7 deletions(-)

(limited to 'src')

diff --git a/src/game/unit_spider.cpp b/src/game/unit_spider.cpp
index 4f0fbd9..5d6253d 100644
--- a/src/game/unit_spider.cpp
+++ b/src/game/unit_spider.cpp
@@ -82,15 +82,21 @@ void unit_spider_t::on_wake(void)
 
 void unit_spider_t::on_think(void)
 {
+	if (game->now - wake_time > 10.0) {
+		sleep();
+		return;
+	}
+
 	target_and_attack();
 
-	if (have_target || game->now - wake_time < 10.0) {
-		if (!have_target && !move.moving)
-			random_walk();
+	if (!have_target && !move.moving)
+		random_walk();
 
-		keep_moving(4.0);
-	} else
-		sleep();
+	if (!keep_moving(4.0)) {
+		// Try to get unstuck.
+		next_targetting = game->now + 0.6;
+		random_walk();
+	}
 }
 
 void unit_spider_t::on_damage(unit_t *attacker)
diff --git a/src/game/units.cpp b/src/game/units.cpp
index 6bce474..e7263c0 100644
--- a/src/game/units.cpp
+++ b/src/game/units.cpp
@@ -271,7 +271,11 @@ void unit_t::random_walk(void)
 	    game->time - move.random_walk_time < MSEC(1000))
 		return;
 
-	start_moving(x + game->prng.unit_vec2() * 10);
+	move.moving = true;
+	move.blocked = false;
+	move.dst = x + game->prng.unit_vec2() * 10;
+	move.path.clear();
+	move.path.push_back(move.dst);
 	move.random_walk_time = game->time;
 }
 
-- 
cgit