1 files changed, 59 insertions, 0 deletions
diff --git a/camera.h b/camera.h
new file mode 100644
index 0000000..86b59d1
--- /dev/null
+++ b/camera.h
@@ -0,0 +1,59 @@
+#ifndef CAMERA_INCLUDED_H
+#define CAMERA_INCLUDED_H
+
+#include <glm/glm.hpp>
+#include <glm/gtx/transform.hpp>
+
+struct Camera {
+public:
+	Camera(const glm::vec3 & pos, float fov, float aspect, float zNear, float zFar)
+	{
+		this->pos = pos;
+		this->forward = glm::vec3(0.0f, 0.0f, 1.0f);
+		this->up = glm::vec3(0.0f, 1.0f, 0.0f);
+		this->projection = glm::perspective(fov, aspect, zNear, zFar);
+	}
+
+	inline glm::mat4
+	GetViewProjection() const
+	{
+		return projection * glm::lookAt(pos, pos + forward, up);
+	}
+
+	// void MoveForward(float amt)
+	//{
+	//	pos += forward * amt;
+	//}
+
+	// void MoveRight(float amt)
+	//{
+	//	pos += glm::cross(up, forward) * amt;
+	//}
+
+	// void Pitch(float angle)
+	//{
+	//	glm::vec3 right = glm::normalize(glm::cross(up, forward));
+
+	//	forward = glm::vec3(glm::normalize(glm::rotate(angle, right) * glm::vec4(forward, 0.0)));
+	//	up = glm::normalize(glm::cross(forward, right));
+	//}
+
+	// void RotateY(float angle)
+	//{
+	//	static const glm::vec3 UP(0.0f, 1.0f, 0.0f);
+
+	//	glm::mat4 rotation = glm::rotate(angle, UP);
+
+	//	forward = glm::vec3(glm::normalize(rotation * glm::vec4(forward, 0.0)));
+	//	up = glm::vec3(glm::normalize(rotation * glm::vec4(up, 0.0)));
+	//}
+
+protected:
+private:
+	glm::mat4 projection;
+	glm::vec3 pos;
+	glm::vec3 forward;
+	glm::vec3 up;
+};
+
+#endif