From de9909df038d1b6bb47bcc82fea5f8dc9dec2491 Mon Sep 17 00:00:00 2001
From: Dan Goodliffe <dan@randomdan.homeip.net>
Date: Tue, 28 Dec 2021 15:42:50 +0000
Subject: Initial implementation for being able to click in the main window to
 select something

---
 test/test-maths.cpp | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

(limited to 'test')

diff --git a/test/test-maths.cpp b/test/test-maths.cpp
index edc3e60..86cb7b8 100644
--- a/test/test-maths.cpp
+++ b/test/test-maths.cpp
@@ -9,6 +9,7 @@
 #include <type_traits>
 
 #include <game/network/link.h>
+#include <gfx/gl/camera.h>
 #include <glm/glm.hpp>
 #include <maths.h>
 #include <tuple>
@@ -250,3 +251,38 @@ BOOST_DATA_TEST_CASE(curve1,
 		}
 	}
 }
+
+BOOST_AUTO_TEST_CASE(camera_clicks)
+{
+	Camera camera {{0, 0, 0}, ::half_pi, 1.25F, .1F, 10000.F};
+	constexpr float centre {0.5F}, right {0.9F}, left {0.1F}, top {1.F}, bottom {0.F};
+	camera.forward = ::north;
+	BOOST_CHECK_CLOSE_VEC(camera.unProject({centre, centre}), ::north);
+	BOOST_CHECK_CLOSE_VEC(camera.unProject({left, centre}), glm::normalize(::north + ::west));
+	BOOST_CHECK_CLOSE_VEC(camera.unProject({right, centre}), glm::normalize(::north + ::east));
+	BOOST_CHECK_CLOSE_VEC(camera.unProject({centre, top}), glm::normalize(::north + ::up));
+	BOOST_CHECK_CLOSE_VEC(camera.unProject({centre, bottom}), glm::normalize(::north + ::down));
+	BOOST_CHECK_CLOSE_VEC(camera.unProject({left, top}), glm::normalize(::north + ::west + ::up));
+	BOOST_CHECK_CLOSE_VEC(camera.unProject({right, top}), glm::normalize(::north + ::east + ::up));
+	BOOST_CHECK_CLOSE_VEC(camera.unProject({left, bottom}), glm::normalize(::north + ::west + ::down));
+	BOOST_CHECK_CLOSE_VEC(camera.unProject({right, bottom}), glm::normalize(::north + ::east + ::down));
+
+	camera.forward = ::east;
+	BOOST_CHECK_CLOSE_VEC(camera.unProject({centre, centre}), ::east);
+	BOOST_CHECK_CLOSE_VEC(camera.unProject({left, centre}), glm::normalize(::north + ::east));
+	BOOST_CHECK_CLOSE_VEC(camera.unProject({right, centre}), glm::normalize(::south + ::east));
+
+	camera.forward = glm::normalize(::north + ::down);
+	BOOST_CHECK_CLOSE_VEC(camera.unProject({centre, centre}), glm::normalize(::north + ::down));
+	BOOST_CHECK_CLOSE_VEC(camera.unProject({centre, top}), glm::normalize(::north));
+
+	camera.forward = glm::normalize(::north + ::west + ::down);
+	BOOST_CHECK_CLOSE_VEC(camera.unProject({centre, centre}), glm::normalize(::north + ::west + ::down));
+	BOOST_CHECK_CLOSE_VEC(camera.unProject({centre, top}), glm::normalize(::north + ::west + ::up * 0.2F));
+
+	camera.forward = glm::normalize(::north + ::west);
+	BOOST_CHECK_CLOSE_VEC(camera.unProject({centre, centre}), glm::normalize(::north + ::west));
+	BOOST_CHECK_CLOSE_VEC(camera.unProject({centre, top}), glm::normalize(::north + ::west + ::up * 1.2F));
+	BOOST_CHECK_CLOSE_VEC(camera.unProject({right, centre}), glm::normalize(::north));
+	BOOST_CHECK_CLOSE_VEC(camera.unProject({left, centre}), glm::normalize(::west));
+}
-- 
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