From b37afb1362efd46e3f77277af674db8880b24eec Mon Sep 17 00:00:00 2001
From: Marco Cawthorne <marco@vera-visions.com>
Date: Wed, 11 Oct 2023 00:55:07 -0700
Subject: [PATCH] BotLib: break func_breakable entities within their path.

---
 src/botlib/bot.h         |  3 +++
 src/botlib/bot.qc        | 16 +++++++++++++++-
 src/botlib/bot_combat.qc | 10 ++++++++++
 3 files changed, 28 insertions(+), 1 deletion(-)

diff --git a/src/botlib/bot.h b/src/botlib/bot.h
index 5a40873a..2381ed96 100644
--- a/src/botlib/bot.h
+++ b/src/botlib/bot.h
@@ -64,6 +64,8 @@ class bot:player
 	float m_flEnemyDist;
 	weapontype_t m_wtWeaponType;
 	vector m_vecLastPOI;
+	float m_flForceWeaponAttack;
+	vector m_vecForceWeaponAttackPos;
 
 	void(void) bot;
 
@@ -88,6 +90,7 @@ class bot:player
 	virtual void(entity) SetEnemy;
 	virtual float(void) GetRunSpeed;
 	virtual float(void) GetWalkSpeed;
+	nonvirtual void ForceWeaponAttack(vector, float);
 
 	virtual void(string) SetName;
 };
diff --git a/src/botlib/bot.qc b/src/botlib/bot.qc
index cc8a5b9f..ad2e81e2 100644
--- a/src/botlib/bot.qc
+++ b/src/botlib/bot.qc
@@ -353,7 +353,8 @@ bot::RunAI(void)
 		if (enemyvisible) {
 			WeaponAttack();
 		}
-	}
+	} else if (m_flForceWeaponAttack > time)
+		WeaponAttack();
 
 	BrainThink(enemyvisible, enemydistant);
 	CheckRoute();
@@ -382,6 +383,10 @@ bot::RunAI(void)
 			aimpos = m_eTarget.origin;
 		}
 
+		/* force bot to fire at a position if desired */
+		if (m_flForceWeaponAttack > time)
+			aimpos = m_vecForceWeaponAttackPos;
+
 		/* aim ahead if aimpos is somehow invalid */
 		if (aimpos == [0,0,0]) {
 			makevectors(angles);
@@ -470,6 +475,15 @@ bot::RunAI(void)
 			RouteClear();
 		}
 
+		/* if there's a breakable in the way... */
+		traceline(origin, aimpos, MOVE_NORMAL, this);
+
+		/* Hackish: If there's a func_breakable in the way... */
+		if (trace_ent.classname == "func_breakable") {
+			NSEntity traceEnt = (NSEntity)trace_ent;
+			ForceWeaponAttack(traceEnt.WorldSpaceCenter(), 1.0f);
+		}
+
 		/* now we'll set the movevalues relative to the input_angle */
 		if ((m_iCurNode >= 0 && Route_GetNodeFlags(&m_pRoute[m_iCurNode]) & LF_WALK) || shouldwalk)
 			vecDirection = normalize(aimpos - origin) * GetWalkSpeed();
diff --git a/src/botlib/bot_combat.qc b/src/botlib/bot_combat.qc
index d6445ce2..d98f5dc5 100644
--- a/src/botlib/bot_combat.qc
+++ b/src/botlib/bot_combat.qc
@@ -88,6 +88,9 @@ bot::WeaponAttack(void)
 			should_attack = 1;
 	}
 
+	if (m_flForceWeaponAttack > time)
+		should_attack = 1;
+
 	if (should_attack && m_flAttackTime < time) {
 		if (!m_iAttackMode) {
 			input_buttons |= INPUT_BUTTON0;
@@ -121,6 +124,13 @@ bot::WeaponAttack(void)
 		m_iAttackMode = 0;
 }
 
+void
+bot::ForceWeaponAttack(vector attackPos, float attackTime)
+{
+	m_vecForceWeaponAttackPos = attackPos;
+	m_flForceWeaponAttack = attackTime + time;
+}
+
 var float g_botalert_timer;
 
 void