init

engine/include/hd2d/Camera.h

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+#pragma once
+#include <glm/glm.hpp>
+
+namespace hd2d {
+
+// Orbit camera looking at `target`. HD-2D scenes use a high, narrow-FOV
+// (near telephoto) camera tilted down so the world reads like a diorama.
+struct Camera {
+    glm::vec3 target{0.0f};
+    float yaw = 0.0f;           // radians; 0 looks toward -Z
+    float pitch = 0.56f;        // radians below horizon
+    float distance = 17.0f;
+    float fovY = 0.52f;         // radians (~30 deg)
+    float nearPlane = 0.5f;
+    float farPlane = 250.0f;
+
+    glm::vec3 forward() const;  // unit vector camera -> target
+    glm::vec3 position() const { return target - forward() * distance; }
+    glm::vec3 right() const;    // horizontal right vector
+    glm::mat4 view() const;
+    glm::mat4 projection(float aspect) const;
+};
+
+}  // namespace hd2d