From 94f0e426bc8f298aec90fd0d4fcf6f823f8c399c Mon Sep 17 00:00:00 2001
From: Dan Goodliffe <dan@randomdan.homeip.net>
Date: Mon, 10 Jan 2022 02:07:53 +0000
Subject: Ray Trace cursor clicks to terrain surface

---
 game/geoData.h | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'game/geoData.h')

diff --git a/game/geoData.h b/game/geoData.h
index a296205..42c2d9d 100644
--- a/game/geoData.h
+++ b/game/geoData.h
@@ -2,10 +2,13 @@
 
 #include <filesystem>
 #include <glm/glm.hpp>
+#include <optional>
 #include <span>
 #include <utility>
 #include <vector>
 
+class Ray;
+
 class GeoData {
 public:
 	struct Node {
@@ -22,6 +25,7 @@ public:
 	void loadFromImages(const std::filesystem::path &, float scale);
 
 	[[nodiscard]] glm::vec3 positionAt(glm::vec2) const;
+	[[nodiscard]] std::optional<glm::vec3> intersectRay(const Ray &) const;
 
 	[[nodiscard]] unsigned int at(glm::ivec2) const;
 	[[nodiscard]] unsigned int at(int x, int y) const;
-- 
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