Updated Input Handler

imgui.ini

@@ -1,10 +1,11 @@
 [Window][DockSpace]
 Pos=0,0
-Size=1920,1177
+Size=1280,720
 Collapsed=0
 
 [Window][Debug##Default]
-Pos=926,701
+ViewportPos=1168,966
+ViewportId=0x16723995
 Size=400,400
 Collapsed=0
 
@@ -79,8 +80,8 @@ Collapsed=0
 DockId=0x0000001F,0
 
 [Window][Performance##performance]
-Pos=8,581
+Pos=8,360
-Size=335,588
+Size=335,352
 Collapsed=0
 DockId=0x0000001C,0
 
@@ -104,7 +105,7 @@ DockId=0x0000000F,0
 
 [Window][Scene Window##SceneWindow]
 Pos=8,28
-Size=335,551
+Size=335,330
 Collapsed=0
 DockId=0x0000001B,0
 
@@ -133,26 +134,26 @@ Collapsed=0
 DockId=0x0000001E,0
 
 [Window][ Logger##logger]
-Pos=345,739
+Pos=345,282
-Size=586,430
+Size=265,430
 Collapsed=0
 DockId=0x00000021,0
 
 [Window][ Editor##EditorWindow]
 Pos=345,28
-Size=1170,709
+Size=530,252
 Collapsed=0
 DockId=0x0000001F,0
 
 [Window][ Inspector##InspectorWindow]
-Pos=1517,28
+Pos=877,28
-Size=395,1141
+Size=395,684
 Collapsed=0
 DockId=0x00000022,0
 
 [Window][ Profiler]
-Pos=933,739
+Pos=612,282
-Size=582,430
+Size=263,430
 Collapsed=0
 DockId=0x00000023,0
 
@@ -180,7 +181,7 @@ Column 0  Width=30
 Column 1  Weight=1.0000
 
 [Docking][Data]
-DockSpace                           ID=0x14621557 Window=0x3DA2F1DE Pos=8,28 Size=1904,1141 Split=X Selected=0xF7365A5A
+DockSpace                           ID=0x14621557 Window=0x3DA2F1DE Pos=250,293 Size=1264,684 Split=X Selected=0xF7365A5A
   DockNode                          ID=0x00000020 Parent=0x14621557 SizeRef=884,684 Split=X
     DockNode                        ID=0x00000013 Parent=0x00000020 SizeRef=335,1142 Split=Y Selected=0x818D04BB
       DockNode                      ID=0x0000001B Parent=0x00000013 SizeRef=264,551 HiddenTabBar=1 Selected=0x1D5D92B6

src/Components/Transform.h

@@ -32,6 +32,10 @@ public:
         rotation = {x, y, z};
     }
 
+    void LookAt(const glm::vec3& target, const glm::vec3& up) {
+        viewMatrix = glm::lookAt(position, target, up);
+    }
+
     TransformComponent();
     virtual const std::string &GetName() const override;
     static const std::string &GetStaticName();

src/Engine/InputManager.cpp

@@ -1,29 +1,92 @@
 // InputManager.cpp
 #include "InputManager.h"
-#include <GLFW/glfw3.h>
+#include <algorithm> // For std::clamp
 
-
+// Constructor
-
+InputManager::InputManager()
-void InputManager::Update(GLFWwindow* window)
+    : m_MouseDeltaX(0.0f), m_MouseDeltaY(0.0f), m_ScrollDelta(0.0f)
-{
-    if (!window)
 {
+    Initialize();
+}
+
+// Initialize method to set up state vectors
+void InputManager::Initialize() {
+    // Initialize key states
+    m_KeyStates.resize(GLFW_KEY_LAST + 1, false);
+    m_PreviousKeyStates.resize(GLFW_KEY_LAST + 1, false);
+
+    // Initialize mouse button states
+    m_MouseButtonStates.resize(GLFW_MOUSE_BUTTON_LAST + 1, false);
+    m_PreviousMouseButtonStates.resize(GLFW_MOUSE_BUTTON_LAST + 1, false);
+}
+
+// Update method to poll input states
+void InputManager::Update(GLFWwindow* window) {
+    if (!window) {
         return;
     }
 
-    // Update the state of each key
+    // Update previous key states
-    for (int key = 0; key <= GLFW_KEY_LAST; ++key)
+    m_PreviousKeyStates = m_KeyStates;
-    {
+
+    // Update current key states
+    for (int key = 0; key <= GLFW_KEY_LAST; ++key) {
         m_KeyStates[key] = glfwGetKey(window, key) == GLFW_PRESS;
     }
+
+    // Update previous mouse button states
+    m_PreviousMouseButtonStates = m_MouseButtonStates;
+
+    // Update current mouse button states
+    for (int button = 0; button <= GLFW_MOUSE_BUTTON_LAST; ++button) {
+        m_MouseButtonStates[button] = glfwGetMouseButton(window, button) == GLFW_PRESS;
     }
 
-bool InputManager::IsKeyPressed(KeyCode key) const
+    // Reset mouse deltas and scroll delta for this frame
-{
+    m_MouseDeltaX = 0.0f;
+    m_MouseDeltaY = 0.0f;
+    m_ScrollDelta = 0.0f;
+}
+
+// Keyboard input query
+bool InputManager::IsKeyPressed(KeyCode key) const {
     int keyInt = static_cast<int>(key);
-    if (keyInt >= 0 && keyInt <= GLFW_KEY_LAST)
+    if (keyInt >= 0 && keyInt <= GLFW_KEY_LAST) {
-    {
         return m_KeyStates[keyInt];
     }
     return false;
 }
+
+// Mouse button input query
+bool InputManager::IsMouseButtonPressed(MouseButton button) const {
+    int buttonInt = static_cast<int>(button);
+    if (buttonInt >= 0 && buttonInt <= GLFW_MOUSE_BUTTON_LAST) {
+        return m_MouseButtonStates[buttonInt];
+    }
+    return false;
+}
+
+// Mouse button just pressed (edge detection)
+bool InputManager::IsMouseButtonJustPressed(MouseButton button) const {
+    int buttonInt = static_cast<int>(button);
+    if (buttonInt >= 0 && buttonInt <= GLFW_MOUSE_BUTTON_LAST) {
+        return m_MouseButtonStates[buttonInt] && !m_PreviousMouseButtonStates[buttonInt];
+    }
+    return false;
+}
+
+// Mouse button just released (edge detection)
+bool InputManager::IsMouseButtonJustReleased(MouseButton button) const {
+    int buttonInt = static_cast<int>(button);
+    if (buttonInt >= 0 && buttonInt <= GLFW_MOUSE_BUTTON_LAST) {
+        return !m_MouseButtonStates[buttonInt] && m_PreviousMouseButtonStates[buttonInt];
+    }
+    return false;
+}
+
+// Reset deltas after handling input
+void InputManager::ResetDeltas() {
+    m_MouseDeltaX = 0.0f;
+    m_MouseDeltaY = 0.0f;
+    m_ScrollDelta = 0.0f;
+}

src/Engine/InputManager.h

@@ -3,18 +3,50 @@
 
 #include "KeyCode.h"
 #include <GLFW/glfw3.h>
+#include <vector>
 
-
+class InputManager {
-class InputManager
-{
 public:
-    // Update key states (to be called every frame)
+    // Constructor
+    InputManager();
+
+    // Update method to poll input states
     void Update(GLFWwindow* window);
 
-    // Check if a key is pressed
+    // Keyboard input query
     bool IsKeyPressed(KeyCode key) const;
 
+    // Mouse button input queries
+    bool IsMouseButtonPressed(MouseButton button) const;
+    bool IsMouseButtonJustPressed(MouseButton button) const;
+    bool IsMouseButtonJustReleased(MouseButton button) const;
+
+    // Mouse movement deltas
+    float GetMouseDeltaX() const { return m_MouseDeltaX; }
+    float GetMouseDeltaY() const { return m_MouseDeltaY; }
+
+    // Scroll delta
+    float GetScrollDelta() const { return m_ScrollDelta; }
+
+    // Call this after handling input to reset deltas
+    void ResetDeltas();
+
 private:
-    // Array or map storing key states
+    // Storage for key states
-    bool m_KeyStates[GLFW_KEY_LAST + 1] = { false };
+    std::vector<bool> m_KeyStates;
+    std::vector<bool> m_PreviousKeyStates;
+
+    // Storage for mouse button states
+    std::vector<bool> m_MouseButtonStates;
+    std::vector<bool> m_PreviousMouseButtonStates;
+
+    // Mouse movement deltas
+    float m_MouseDeltaX;
+    float m_MouseDeltaY;
+
+    // Scroll delta
+    float m_ScrollDelta;
+
+    // Initialization helper
+    void Initialize();
 };

src/Engine/KeyCode.h

@@ -126,3 +126,16 @@ enum class KeyCode
     RightSuper = GLFW_KEY_RIGHT_SUPER,
     Menu = GLFW_KEY_MENU
 };
+
+// Enum for mouse buttons
+enum class MouseButton {
+    LEFT = GLFW_MOUSE_BUTTON_LEFT,
+    RIGHT = GLFW_MOUSE_BUTTON_RIGHT,
+    MIDDLE = GLFW_MOUSE_BUTTON_MIDDLE,
+    BUTTON4 = GLFW_MOUSE_BUTTON_4,
+    BUTTON5 = GLFW_MOUSE_BUTTON_5,
+    BUTTON6 = GLFW_MOUSE_BUTTON_6,
+    BUTTON7 = GLFW_MOUSE_BUTTON_7,
+    BUTTON8 = GLFW_MOUSE_BUTTON_8,
+    LAST = GLFW_MOUSE_BUTTON_LAST
+};

src/Windows/RenderWindow.cpp

@@ -1,30 +1,51 @@
 #include "RenderWindow.h"
 
-#include "imgui.h"
 
-#include <GL/glew.h>
 #include <vector>
+#include <GL/glew.h>
+
 #include <glm/gtc/matrix_transform.hpp>
 #include <glm/gtc/type_ptr.hpp>
 
 #include "Components/GameObject.h"
 #include "Components/mesh.h"
 #include "Components/transform.h"
+#include "Components/CameraComponent.h"
+
 #include "Engine/AssetManager.h"
 #include "Engine/Settings.h"
+#include "Engine/InputManager.h"
+#include "Engine/KeyCode.h"
+
 #include "Rendering/Shader.h"
 
 #include "ImGuizmo.h"
 #include "gcml.h"
 #include "Icons.h"
+#include "imgui.h"
+
 
 #define CAM_FOV 45.0f
 #define CAM_NEAR_PLAIN 0.1f
 #define CAM_FAR_PLAIN 2048.0f
 
+float editorYaw = -90.0f;                 // Horizontal angle, initialized to face along negative Z-axis
+float editorPitch = 0.0f;                 // Vertical angle
+float editorDistance = 5.0f;              // Distance from the target
+glm::vec3 editorTarget(0.0f, 0.0f, 0.0f); // The point the camera orbits around
+
+// Configuration Parameters
+const float rotationSpeed = 0.1f; // Sensitivity for mouse rotation
+const float zoomSpeed = 2.0f;     // Sensitivity for zooming
+const float movementSpeed = 5.0f; // Speed for panning
+const float minZoom = 2.0f;       // Minimum zoom distance
+const float maxZoom = 20.0f;      // Maximum zoom distance
+
 // Managers
 extern AssetManager g_AssetManager;
 extern Settings g_SettingsManager;
+extern InputManager g_InputManager;
+
 
 // Settings
 extern bool DrawBBBO;
@@ -222,7 +243,7 @@ enum GizmoOperation
 // Initialize with a default operation
 GizmoOperation currentOperation = GIZMO_TRANSLATE;
 
-void RenderWindow::Show(bool *GameRunning)
+void RenderWindow::Show(bool *GameRunning, double deltaTime)
 {
     // Begin the ImGui window with an icon and label
     ImGui::Begin(ICON_FA_GAMEPAD " Editor##EditorWindow");
@@ -300,24 +321,73 @@ void RenderWindow::Show(bool *GameRunning)
                 // Obtain view and projection matrices from the active camera
                 glm::mat4 viewMatrix;
                 glm::mat4 projectionMatrix;
+                // Camera Selection and Setup Logic (e.g., within your rendering or update function)
 
-                if (m_ActiveCamera) // Ensure m_ActiveCamera is correctly initialized
+                if (m_ActiveCamera)
                 {
+                    // Use the existing active camera
                     viewMatrix = m_ActiveCamera->GetViewMatrix();
                     projectionMatrix = m_ActiveCamera->GetProjectionMatrix();
                 }
                 else
                 {
-                    // Fallback view matrix
+                    m_ActiveCamera = m_EditorCamera.GetComponent<CameraComponent>();
-                    viewMatrix = glm::lookAt(glm::vec3(0.0f, 0.0f, 5.0f),
-                                             glm::vec3(0.0f, 0.0f, 0.0f),
-                                             glm::vec3(0.0f, 1.0f, 0.0f));
 
-                    // Fallback projection matrix
+                    // 1. Mouse Input for Rotation
-                    float aspect = (h != 0) ? static_cast<float>(w) / static_cast<float>(h) : 1.0f;
+                    if (g_InputManager.IsMouseButtonPressed(MouseButton::RIGHT))
-                    projectionMatrix = glm::perspective(glm::radians(45.0f), aspect, 0.1f, 100.0f);
+                    {
+                        float deltaX = g_InputManager.GetMouseDeltaX();
+                        float deltaY = g_InputManager.GetMouseDeltaY();
+
+                        editorYaw += deltaX * rotationSpeed;
+                        editorPitch += deltaY * rotationSpeed;
+
+                        // Clamp the pitch to prevent flipping
+                        if (editorPitch > 89.0f)
+                            editorPitch = 89.0f;
+                        if (editorPitch < -89.0f)
+                            editorPitch = -89.0f;
                     }
 
+                    // 2. Scroll Input for Zooming
+                    float scrollDelta = g_InputManager.GetScrollDelta();
+                    editorDistance -= scrollDelta * zoomSpeed;
+                    editorDistance = glm::clamp(editorDistance, minZoom, maxZoom);
+
+                    // 3. Keyboard Input for Panning (WASD)
+                    glm::vec3 forward = glm::normalize(editorTarget - m_EditorCamera.GetComponent<TransformComponent>()->GetPosition());
+                    glm::vec3 right = glm::normalize(glm::cross(forward, glm::vec3(0.0f, 1.0f, 0.0f)));
+                    glm::vec3 up = glm::vec3(0.0f, 1.0f, 0.0f);
+
+                    deltaTime = static_cast<float>(deltaTime);
+
+                    if (g_InputManager.IsKeyPressed(KeyCode::W))
+                        editorTarget += up * movementSpeed * deltaTime;
+                    if (g_InputManager.IsKeyPressed(KeyCode::S))
+                        editorTarget -= up * movementSpeed * deltaTime;
+                    if (g_InputManager.IsKeyPressed(KeyCode::A))
+                        editorTarget -= right * movementSpeed * deltaTime;
+                    if (g_InputManager.IsKeyPressed(KeyCode::D))
+                        editorTarget += right * movementSpeed * deltaTime;
+
+                    // 4. Calculate the New Camera Position
+                    glm::vec3 direction;
+                    direction.x = cos(glm::radians(editorYaw)) * cos(glm::radians(editorPitch));
+                    direction.y = sin(glm::radians(editorPitch));
+                    direction.z = sin(glm::radians(editorYaw)) * cos(glm::radians(editorPitch));
+                    direction = glm::normalize(direction);
+
+                    glm::vec3 newPosition = editorTarget - direction * editorDistance;
+
+                    // 5. Update the Editor Camera's Transform
+                    auto editorTransform = m_EditorCamera.GetComponent<TransformComponent>();
+                    editorTransform->SetPosition(newPosition);
+                    editorTransform->LookAt(editorTarget, up);
+
+                    // 6. Retrieve Updated Matrices
+                    viewMatrix = m_ActiveCamera->GetViewMatrix();
+                    projectionMatrix = m_ActiveCamera->GetProjectionMatrix();
+
                     static ImGuizmo::OPERATION currentOperation = ImGuizmo::TRANSLATE;
 
                     if (ImGui::IsWindowFocused() && ImGui::IsWindowHovered())
@@ -368,6 +438,7 @@ void RenderWindow::Show(bool *GameRunning)
                 }
             }
         }
+    }
     else
     {
         // Display message if there's insufficient space to render the scene
@@ -387,6 +458,10 @@ void RenderWindow::InitGLResources()
     // throw this in here cus we dont have a constructor
     m_ActiveCamera = nullptr;
 
+    // Setup the editor camera
+    m_EditorCamera.AddComponent(std::make_shared<CameraComponent>());
+    m_EditorCamera.AddComponent(std::make_shared<TransformComponent>());
+
     {
         std::shared_ptr<Shader> shaderAsset = g_AssetManager.loadAsset<Shader>(AssetType::SHADER, "assets/shaders/UnlitMaterial");
         if (!shaderAsset)

src/Windows/RenderWindow.h

@@ -5,11 +5,13 @@
 #include <memory>
 #include "Rendering/Shader.h" // 
 #include "Components/CameraComponent.h"
+#include "Components/GameObject.h"
+#include "Engine/InputManager.h"
 
 class RenderWindow
 {
 public:
-    void Show(bool *GameRunning);
+    void Show(bool *GameRunning, double deltaTime);
 
 private:
     void InitGLResources();
@@ -39,6 +41,8 @@ private:
     // The loaded shader program (via AssetManager)
     Shader* m_ShaderPtr = nullptr; 
     Shader* m_LineShaderPtr = nullptr;
+
+    GameObject m_EditorCamera;
 };