Added basic camera functionality

src/camera.cpp

@@ -0,0 +1,68 @@
+#include "camera.hpp"
+
+#include <algorithm>
+
+#include <glm/glm.hpp>
+#include <glm/gtc/matrix_transform.hpp>
+#include <glm/gtc/type_ptr.hpp>
+
+namespace oglu
+{
+	Camera::Camera() :
+		fov(45.0f), aspectRatio(0.0f), zNear(0.1f), zFar(100.0f), projection(new float[16]{ 0.0f })
+	{
+		memcpy(
+			projection,
+			glm::value_ptr(glm::perspective(glm::radians(fov), aspectRatio, zNear, zFar)),
+			16 * sizeof(float)
+		);
+	}
+
+	Camera::Camera(const Camera& other) :
+		fov(other.fov), aspectRatio(other.aspectRatio), zNear(other.zNear), zFar(other.zFar), projection(new float[16]{ 0.0f })
+	{
+		memcpy(
+			projection,
+			other.projection,
+			16 * sizeof(float)
+		);
+	}
+
+	Camera::Camera(float fov, float aspectRatio, float zNear, float zFar) :
+		fov(fov), aspectRatio(aspectRatio), zNear(zNear), zFar(zFar), projection(new float[16]{ 0.0f })
+	{
+		if (aspectRatio == 0.0f)
+		{
+			GLint viewport[4];
+			glGetIntegerv(GL_VIEWPORT, viewport);
+			aspectRatio = (float)viewport[2] / (float)viewport[3];
+		}
+
+		memcpy(
+			projection,
+			glm::value_ptr(glm::perspective(glm::radians(fov), aspectRatio, zNear, zFar)),
+			16 * sizeof(float)
+		);
+	}
+
+	Camera::~Camera()
+	{
+	}
+
+	void Camera::LookAt(GLfloat x, GLfloat y, GLfloat z)
+	{
+	}
+
+	void Camera::LookAt(const GLfloat* target)
+	{
+	}
+
+	void Camera::LookAt(const Object& target)
+	{
+	}
+
+	const float* Camera::GetProjectionMatrix()
+	{
+		return projection;
+	}
+}