From b546c96193ca9f3094dd66311a2c9249cda9592b Mon Sep 17 00:00:00 2001
From: David Markowitz <EmosewaMC@gmail.com>
Date: Mon, 7 Aug 2023 01:46:03 -0700
Subject: [PATCH] Add reversing

---
 dGame/dComponents/MovementAIComponent.cpp | 9 +++++++++
 dGame/dComponents/MovementAIComponent.h   | 9 +++++++++
 2 files changed, 18 insertions(+)

diff --git a/dGame/dComponents/MovementAIComponent.cpp b/dGame/dComponents/MovementAIComponent.cpp
index f0487ad5..f13ba0c8 100644
--- a/dGame/dComponents/MovementAIComponent.cpp
+++ b/dGame/dComponents/MovementAIComponent.cpp
@@ -141,6 +141,15 @@ nextAction:
 	Game::entityManager->SerializeEntity(m_Parent);
 }
 
+void MovementAIComponent::ReversePath() {
+	if (m_CurrentPath.empty()) return;
+	if (m_NextPathWaypointIndex < 0) m_NextPathWaypointIndex = 0;
+	if (m_NextPathWaypointIndex >= m_CurrentPath.size()) m_NextPathWaypointIndex = m_CurrentPath.size() - 1;
+	m_CurrentPathWaypointIndex = m_NextPathWaypointIndex;
+	m_IsInReverse = !m_IsInReverse;
+	AdvancePathWaypointIndex();
+}
+
 bool MovementAIComponent::AdvancePathWaypointIndex() {
 	m_CurrentPathWaypointIndex = m_NextPathWaypointIndex;
 	if (m_IsInReverse) {
diff --git a/dGame/dComponents/MovementAIComponent.h b/dGame/dComponents/MovementAIComponent.h
index 76d12b32..00143ccf 100644
--- a/dGame/dComponents/MovementAIComponent.h
+++ b/dGame/dComponents/MovementAIComponent.h
@@ -175,8 +175,15 @@ public:
 
 	bool IsPaused() const { return m_IsPaused; }
 
+	/**
+	 * Pauses the current pathing of this entity. The current path waypoint will be saved for resuming later.
+	 */
 	void Pause();
 
+	/**
+	 * Resumes pathing from the current position to the destination that was set
+	 * when the entity was paused.
+	 */
 	void Resume();
 
 	/**
@@ -184,6 +191,8 @@ public:
 	 */
 	void Stop();
 
+	void ReversePath();
+
 	/**
 	 * Stops the current movement and moves the entity to a certain point. Will continue until it's close enough,
 	 * after which its AI is enabled again.