From d39c6dd18248927044d2f75cefd2ed8ba12eb3b7 Mon Sep 17 00:00:00 2001
From: Dan Goodliffe <dan@randomdan.homeip.net>
Date: Tue, 9 Mar 2021 01:21:46 +0000
Subject: Make objectives responsible for navigation

---
 game/objectives/freeroam.cpp | 22 ++++++++++++++++++++++
 game/objectives/freeroam.h   | 12 +++++-------
 2 files changed, 27 insertions(+), 7 deletions(-)
 create mode 100644 game/objectives/freeroam.cpp

(limited to 'game/objectives')

diff --git a/game/objectives/freeroam.cpp b/game/objectives/freeroam.cpp
new file mode 100644
index 0000000..0721ef2
--- /dev/null
+++ b/game/objectives/freeroam.cpp
@@ -0,0 +1,22 @@
+#include "freeroam.h"
+#include <game/activities/go.h>
+#include <game/activity.h>
+#include <game/network/link.h>
+#include <iterator>
+#include <memory>
+#include <random>
+#include <vector>
+
+ActivityPtr
+FreeRoam::createActivity() const
+{
+	return std::make_unique<Go>();
+}
+
+Link::Next
+FreeRoam::navigate(Link::Nexts::const_iterator begin, Link::Nexts::const_iterator end) const
+{
+	static std::mt19937 gen(std::random_device {}());
+	auto off = std::uniform_int_distribution<>(0, std::distance(begin, end) - 1)(gen);
+	return begin[off];
+}
diff --git a/game/objectives/freeroam.h b/game/objectives/freeroam.h
index c97d9b4..2cfdcfc 100644
--- a/game/objectives/freeroam.h
+++ b/game/objectives/freeroam.h
@@ -1,18 +1,16 @@
 #ifndef FREEROAM_H
 #define FREEROAM_H
 
-#include "game/activities/go.h"
-#include "game/objective.h"
+#include <game/activity.h>
+#include <game/network/link.h>
+#include <game/objective.h>
 
 class FreeRoam : public Objective {
 public:
 	using Objective::Objective;
 
-	[[nodiscard]] ActivityPtr
-	createActivity() const override
-	{
-		return std::make_unique<Go>();
-	}
+	[[nodiscard]] ActivityPtr createActivity() const override;
+	[[nodiscard]] Link::Next navigate(Link::Nexts::const_iterator, Link::Nexts::const_iterator) const override;
 };
 
 #endif
-- 
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