Example Triangle Pog

src/dawn/scene/components/display/Camera.hpp

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+// Copyright (c) 2022 Dominic Masters
+// 
+// This software is released under the MIT License.
+// https://opensource.org/licenses/MIT
+
+#pragma once
+#include "scene/SceneItemComponent.hpp"
+
+namespace Dawn {
+  enum CameraType {
+    CAMERA_TYPE_ORTHONOGRAPHIC,
+    CAMERA_TYPE_PERSPECTIVE
+  };
+
+  class Camera : public SceneItemComponent {
+    public:
+      glm::mat4 projection;
+
+      // Perspective
+      enum CameraType type = CAMERA_TYPE_PERSPECTIVE;
+      float_t fov = 0.785398f;// 45 degrees
+
+      // Ortho
+      float_t orthoLeft = 0.0f;
+      float_t orthoRight = 1.0f;
+      float_t orthoBottom = 0.0f;
+      float_t orthoTop = 1.0f;
+
+      // Shared
+      float_t clipNear = 0.001f;
+      float_t clipFar = 100.0f;
+
+      /**
+       * Create a new Camera Component.
+       * 
+       * @param item SceneItem that this component belongs to.
+       */
+      Camera(std::weak_ptr<SceneItem> item);
+
+      /**
+       * Updates the projection matrix.
+       */
+      void updateProjection();
+
+      /**
+       * Returs the aspect ratio of the camera.
+       * 
+       * @return The aspect ratio of the camera.
+       */
+      float_t getAspect();
+
+      /**
+       * Event triggered by the scene item when the item is added to the scene.
+       */
+      void start() override;
+  };
+}