From 405563345e30b757829b3411b0f33cb166793ad7 Mon Sep 17 00:00:00 2001
From: Aki <please@ignore.pl>
Date: Tue, 17 May 2022 19:17:31 +0200
Subject: Added simple hovering

---
 Label.h  |  1 +
 View.cpp | 28 ++++++++++++++++++++++++----
 View.h   |  1 +
 3 files changed, 26 insertions(+), 4 deletions(-)

diff --git a/Label.h b/Label.h
index 688dead..6372a6f 100644
--- a/Label.h
+++ b/Label.h
@@ -9,4 +9,5 @@ struct Label
     Vector2 base;
     float depth;
     float length;
+    bool hover;
 };
diff --git a/View.cpp b/View.cpp
index debf10c..0aa3b7b 100644
--- a/View.cpp
+++ b/View.cpp
@@ -14,7 +14,8 @@ View::View(std::vector<Grid> grids) :
     m_grids {grids},
     m_labels {},
     m_grid {0},
-    m_texture {LoadTexture("resources/wreck.png")}
+    m_texture {LoadTexture("resources/wreck.png")},
+    m_active {nullptr}
 {
     m_camera.position = Vector3{10.0f, 10.0f, 10.0f};
     m_camera.target = Vector3{0.0f, 0.0f, 0.0f};
@@ -45,6 +46,7 @@ View::update(const float dt)
     const auto wrecks = m_grids.at(m_grid).wrecks;
     m_labels.clear();
     m_labels.reserve(wrecks.size());
+    auto mouse = GetMousePosition();
     for (const auto& wreck : wrecks) {
         const auto pos = GetWorldToScreen(wreck.position, m_camera);
         const auto base = GetWorldToScreen({wreck.position.x, 0.0f, wreck.position.z}, m_camera);
@@ -60,9 +62,27 @@ View::update(const float dt)
             std::sqrt(
                 std::pow(pos.x - base.x, 2) +
                 std::pow(pos.y - base.y, 2));
-        m_labels.push_back(Label{pos, base, depth, length});
+        const bool hover =
+            8.0f > std::sqrt(
+                std::pow(mouse.x - pos.x, 2) +
+                std::pow(mouse.y - pos.y, 2));
+        m_labels.push_back(Label{pos, base, depth, length, hover});
     }
     std::sort(m_labels.begin(), m_labels.end(), [](auto& a, auto& b){ return a.depth > b.depth; });
+    m_active = nullptr;
+    for (auto& label : m_labels) {
+        if (label.hover) {
+            if (m_active) {
+                if (label.depth < m_active->depth)
+                    m_active = &label;
+            }
+            else
+                m_active = &label;
+            label.hover = false;
+        }
+    }
+    if (m_active)
+        m_active->hover = true;
 }
 
 
@@ -76,8 +96,8 @@ View::draw() const
     EndMode3D();
     for (const auto& point : m_labels) {
         if (point.length > 8)
-            DrawLine(point.base.x, point.base.y, point.pos.x, point.pos.y, DARKGRAY);
-        DrawTexture(m_texture, point.pos.x - 8, point.pos.y - 8, WHITE);
+            DrawLine(point.base.x, point.base.y, point.pos.x, point.pos.y, point.hover ? ORANGE : DARKGRAY);
+        DrawTexture(m_texture, point.pos.x - 8, point.pos.y - 8, point.hover ? ORANGE : WHITE);
     }
     DrawFPS(5, 5);
     DrawText(TextFormat("%d", m_labels.size()), 5, 25, 20, DARKGRAY);
diff --git a/View.h b/View.h
index e259132..e58b539 100644
--- a/View.h
+++ b/View.h
@@ -22,4 +22,5 @@ private:
     int m_grid;
     float m_timer;
     Texture2D m_texture;
+    Label* m_active;
 };
-- 
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