Early input polling implementation

Core/Application/Application.cpp

@@ -51,12 +51,12 @@ namespace Iridescent {
 	void Application::Run()
 	{
 		while (m_Running)
-		{ 
+		{
 		    for (Layer* layer : m_LayerStack)
 			    layer->OnUpdate();
 
 		    m_Window->OnUpdate();
-		}
+        }
 	}
 
 	bool Application::OnWindowClose(WindowCloseEvent& e)

Core/CMakeLists.txt

@@ -20,6 +20,9 @@ set(SOURCE_FILES
     # Predefines
     Exports.h
 
+    # Input
+    Input.h
+
     # Application sources
     Application/Application.cpp
     Application/Application.h 
@@ -37,8 +40,10 @@ set(SOURCE_FILES
 
     # Window
     Window/Windows.cpp
+    Window/WindowsInput.cpp
+    Window/WindowsInput.h
     Window/Windows.h
-    Window.h 
+    Window.h
 
     # Layerstack
     Layer/Layer.cpp

Core/Input.h

@@ -0,0 +1,27 @@
+#pragma once
+
+#include "Exports.h"
+
+namespace Iridescent {
+
+	class IRID_EXPORT Input
+	{
+	public:
+		inline static bool IsKeyPressed(int keycode) { return s_Instance->IsKeyPressedImpl(keycode); }
+
+		inline static bool IsMouseButtonPressed(int button) { return s_Instance->IsMouseButtonPressedImpl(button); }
+		inline static std::pair<float, float> GetMousePosition() { return s_Instance->GetMousePositionImpl(); }
+		inline static float GetMouseX() { return s_Instance->GetMouseXImpl(); }
+		inline static float GetMouseY() { return s_Instance->GetMouseYImpl(); }
+	protected:
+		virtual bool IsKeyPressedImpl(int keycode) = 0;
+
+		virtual bool IsMouseButtonPressedImpl(int button) = 0;
+		virtual std::pair<float, float> GetMousePositionImpl() = 0;
+		virtual float GetMouseXImpl() = 0;
+		virtual float GetMouseYImpl() = 0;
+	private:
+		static Input* s_Instance;
+	};
+
+} 

Core/Window.h

@@ -39,7 +39,9 @@ namespace Iridescent {
 		virtual void SetVSync(bool enabled) = 0;
 		virtual bool IsVSync() const = 0;
 
+        virtual void* GetNativeWindow() const = 0;
+
 		static Window* Create(const WindowProps& props = WindowProps());
 	};
 
-}
+}

Core/Window/Windows.h

@@ -21,6 +21,8 @@ namespace Iridescent {
 		inline void SetEventCallback(const EventCallbackFn& callback) override { m_Data.EventCallback = callback; }
 		void SetVSync(bool enabled) override;
 		bool IsVSync() const override;
+
+        inline virtual void* GetNativeWindow() const { return m_Window; }
 	private:
 		virtual void Init(const WindowProps& props);
 		virtual void Shutdown();
@@ -39,4 +41,4 @@ namespace Iridescent {
 		WindowData m_Data;
 	};
 
-}
+}

Core/Window/WindowsInput.cpp

@@ -0,0 +1,46 @@
+#include "Iridpch.h"
+#include "WindowsInput.h"
+
+#include "Application/Application.h"
+#include <GLFW/glfw3.h>
+
+namespace Iridescent {
+
+	Input* Input::s_Instance = new WindowsInput();
+
+	bool WindowsInput::IsKeyPressedImpl(int keycode)
+	{
+		auto window = static_cast<GLFWwindow*>(Application::Get().GetWindow().GetNativeWindow());
+		auto state = glfwGetKey(window, keycode);
+		return state == GLFW_PRESS || state == GLFW_REPEAT;
+	}
+
+	bool WindowsInput::IsMouseButtonPressedImpl(int button)
+	{
+		auto window = static_cast<GLFWwindow*>(Application::Get().GetWindow().GetNativeWindow());
+		auto state = glfwGetMouseButton(window, button);
+		return state == GLFW_PRESS;
+	}
+
+	std::pair<float, float> WindowsInput::GetMousePositionImpl()
+	{
+		auto window = static_cast<GLFWwindow*>(Application::Get().GetWindow().GetNativeWindow());
+		double xpos, ypos;
+		glfwGetCursorPos(window, &xpos, &ypos);
+
+		return { (float)xpos, (float)ypos };
+	}
+
+	float WindowsInput::GetMouseXImpl()
+	{
+		auto[x, y] = GetMousePositionImpl();
+		return x;
+	}
+
+	float WindowsInput::GetMouseYImpl()
+	{
+		auto[x, y] = GetMousePositionImpl();
+		return y;
+	}
+
+} 

Core/Window/WindowsInput.h

@@ -0,0 +1,18 @@
+#pragma once
+
+#include "Input.h"
+
+namespace Iridescent {
+
+	class WindowsInput : public Input
+	{
+	protected:
+		virtual bool IsKeyPressedImpl(int keycode) override;
+
+		virtual bool IsMouseButtonPressedImpl(int button) override;
+		virtual std::pair<float, float> GetMousePositionImpl() override;
+		virtual float GetMouseXImpl() override;
+		virtual float GetMouseYImpl() override;
+	};
+
+}

imgui.ini

@@ -4,7 +4,100 @@ Size=400,400
 Collapsed=0
 
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