From 8bdf5cc3908e301973c0b38bf4df6f42294d578c Mon Sep 17 00:00:00 2001
From: Linloir <3145078758@qq.com>
Date: Mon, 19 Dec 2022 19:29:33 +0800
Subject: [PATCH] [CORE][ADD] Embed terrain hit test

---
 FinalProject/sceneviewer.cpp | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/FinalProject/sceneviewer.cpp b/FinalProject/sceneviewer.cpp
index 050c021..5af9f2b 100644
--- a/FinalProject/sceneviewer.cpp
+++ b/FinalProject/sceneviewer.cpp
@@ -71,6 +71,7 @@ void SceneViewer::extractShaderResource(const QString& shaderName) {
 Renderable* SceneViewer::hitTest(const Ray& ray) {
     HitRecord newRecord = HitRecord();
     Renderable* newObject = nullptr;
+    // Object hit test
     for (int i = 0; i < _objects.size(); i++) {
         Logger::debug("Testing object " + std::to_string(i));
         Renderable* obj = _objects[i];
@@ -90,6 +91,18 @@ Renderable* SceneViewer::hitTest(const Ray& ray) {
             newObject = obj;
         }
     }
+    // Terrain hit test
+    HitRecord hitRecord = _terrain->hit(ray);
+    if (hitRecord.hitted()) {
+        Logger::debug("Hitted terrain");
+    }
+    else {
+        Logger::debug("Missed terrain");
+    }
+    if (hitRecord.hitted() && hitRecord.t() < newRecord.t()) {
+        newRecord = hitRecord;
+        newObject = nullptr;
+    }
     _hitRecord = newRecord;
     return newObject;
 }