From c9b26054cb569ced5d2807c2da6bb090ed2bc6a4 Mon Sep 17 00:00:00 2001
From: benkyd <benjaminkyd@gmail.com>
Date: Sun, 13 Nov 2022 21:36:40 +0000
Subject: [PATCH] airplane

---
 libhart/scene/camera.hpp |  2 ++
 src/inferno.cpp          | 16 ++++++++++++----
 src/scene/camera.cpp     | 17 +++++++++++------
 3 files changed, 25 insertions(+), 10 deletions(-)

diff --git a/libhart/scene/camera.hpp b/libhart/scene/camera.hpp
index 55ab1ac..637d509 100644
--- a/libhart/scene/camera.hpp
+++ b/libhart/scene/camera.hpp
@@ -17,6 +17,7 @@ public:
 	glm::mat4 GetFrustrumMatrix();
 
 	void UpdateProjection(int width, int height);
+	void UpdateProjection();
 
 	// Keyboard
 	void MoveCamera(uint8_t posDelta);
@@ -33,6 +34,7 @@ public:
 
 	glm::vec3 Position = {};
 	float Roll, Pitch, Yaw;
+	float FOV = 45.0f;
 	glm::vec3 LookDirection = {};
 
 private:
diff --git a/src/inferno.cpp b/src/inferno.cpp
index f27333c..a9d5499 100644
--- a/src/inferno.cpp
+++ b/src/inferno.cpp
@@ -176,9 +176,7 @@ int Inferno::run()
 
         if (showPreview && ImGui::Begin("Preview", nullptr, ImGuiWindowFlags_NoScrollbar))
         {
-            const bool allowMove = ImGui::IsWindowHovered();
-
-            if (allowMove)
+            if (ImGui::IsWindowHovered())
             {
                 this->moveInput();
             } else
@@ -201,12 +199,18 @@ int Inferno::run()
 
         if (ImGui::Begin("Render"))
         {
+            
 
             ImGui::End();
         }
 
         if (showRenderSettings && ImGui::Begin("Inferno HART"))
         {
+            if (ImGui::TreeNode("Render"))
+            {
+                ImGui::TreePop();
+            }
+
             if (ImGui::TreeNode("Camera"))
             {
                 ImGui::PushItemWidth(100);
@@ -223,9 +227,13 @@ int Inferno::run()
                 camera.UpdateView();
 
                 ImGui::PopItemWidth();
+
+                ImGui::Text("Camera Zoom");
+                ImGui::DragFloat("Zoom", &camera.FOV, -0.1f, 0.0f, 180.0f, "%.2f", ImGuiSliderFlags_None); ImGui::SameLine();
+                camera.UpdateProjection();
+
                 ImGui::TreePop();
             }
-
             ImGui::ShowDemoWindow();
             ImGui::End();
         }
diff --git a/src/scene/camera.cpp b/src/scene/camera.cpp
index e607d94..904910b 100644
--- a/src/scene/camera.cpp
+++ b/src/scene/camera.cpp
@@ -4,7 +4,7 @@ using namespace inferno;
 
 Camera::Camera()
 {
-	mProjMatrix = glm::perspective( glm::radians( 45.0f ), 1.0f, 0.1f, 1000.0f );
+	mProjMatrix = glm::perspective( glm::radians(FOV), 1.0f, 0.1f, 1000.0f );
 
 	Roll = 0.0f;
 	Pitch = 0.0f;
@@ -20,7 +20,7 @@ Camera::Camera()
 
 Camera::Camera(int w, int h)
 {
-	mProjMatrix = glm::perspective(glm::radians(45.0f), (float)w / (float)h, 0.1f, 1000.0f);
+	mProjMatrix = glm::perspective(glm::radians(FOV), (float)w / (float)h, 0.1f, 1000.0f);
 
 	Roll = 0.0f;
 	Pitch = 0.0f;
@@ -42,9 +42,9 @@ void Camera::UpdateView()
 	glm::mat4 matYaw = glm::mat4(1.0f);  //identity matrix
 
 	// roll, pitch and yaw
-	matRoll = glm::rotate( matRoll, Roll, glm::vec3(0.0f, 0.0f, 1.0f));
-	matPitch = glm::rotate( matPitch, Pitch, glm::vec3(1.0f, 0.0f, 0.0f));
-	matYaw = glm::rotate( matYaw, Yaw, glm::vec3( 0.0f, 1.0f, 0.0f));
+	matRoll = glm::rotate(matRoll, Roll, glm::vec3(0.0f, 0.0f, 1.0f));
+	matPitch = glm::rotate(matPitch, Pitch, glm::vec3(1.0f, 0.0f, 0.0f));
+	matYaw = glm::rotate(matYaw, Yaw, glm::vec3( 0.0f, 1.0f, 0.0f));
 
 	glm::mat4 rotate = matRoll * matPitch * matYaw;
 
@@ -74,7 +74,12 @@ glm::mat4 Camera::GetProjectionMatrix()
 void Camera::UpdateProjection(int width, int height)
 {
 	mViewport = {width, height};
-	mProjMatrix = glm::perspective(glm::radians(45.0f), (float)width / (float)height, 0.1f, 1000.0f);
+	mProjMatrix = glm::perspective(glm::radians(FOV), (float)width / (float)height, 0.1f, 1000.0f);
+}
+
+void Camera::UpdateProjection()
+{
+	mProjMatrix = glm::perspective(glm::radians(FOV), mViewport.x / mViewport.y, 0.1f, 1000.0f);
 }
 
 void Camera::MoveCamera(uint8_t posDelta)