init

engine/include/hd2d/Window.h

@@ -0,0 +1,49 @@
+#pragma once
+#include <glm/vec2.hpp>
+#include <string>
+
+struct GLFWwindow;
+
+namespace hd2d {
+
+// GLFW window + OpenGL 4.5 core context with simple polled input.
+class Window {
+public:
+    // Non-resizable windows float on tiling WMs, keeping an exact size.
+    bool create(int width, int height, const std::string& title, bool vsync = true, bool resizable = true);
+    void destroy();
+
+    // Polls events and refreshes per-frame input state. Returns false once the
+    // window should close.
+    bool pollEvents();
+    void swapBuffers();
+
+    bool keyDown(int glfwKey) const;
+    bool keyPressed(int glfwKey) const;  // went down this frame
+    bool mouseDown(int glfwButton) const;
+    glm::vec2 mouseDelta() const { return mouseDelta_; }
+    float scrollDelta() const { return scrollDelta_; }
+
+    int width() const { return width_; }
+    int height() const { return height_; }
+    bool resized() const { return resized_; }
+    GLFWwindow* handle() const { return window_; }
+    void setTitle(const std::string& title);
+    void requestClose();
+
+private:
+    static void onFramebufferSize(GLFWwindow* w, int width, int height);
+    static void onScroll(GLFWwindow* w, double dx, double dy);
+
+    GLFWwindow* window_ = nullptr;
+    int width_ = 0, height_ = 0;
+    bool resized_ = false;
+    bool keys_[512] = {};
+    bool prevKeys_[512] = {};
+    glm::vec2 lastMouse_{0.0f};
+    glm::vec2 mouseDelta_{0.0f};
+    float scrollAccum_ = 0.0f;
+    float scrollDelta_ = 0.0f;
+};
+
+}  // namespace hd2d