Add basic camera representation

camera.cpp

@@ -0,0 +1,31 @@
+#include "camera.h"
+#include <cmath>
+
+#include <SFML/Graphics/Color.hpp>
+
+#define PI 3.14159265
+
+static void drawLine(sf::RenderWindow* window, sf::Vector2f pos, float angle, float length, sf::Color color);
+
+void camera_update(Camera* camera, sf::RenderWindow* window)
+{
+	if (!camera || !window) return; 
+
+	drawLine(window, camera->pos, camera->direction, 100, sf::Color::Red);
+}
+
+static void drawLine(sf::RenderWindow* window, sf::Vector2f pos, float angle, float length, sf::Color color)
+{
+	if (!window) return;
+
+	sf::Vector2f endOffset(length * cos(angle * PI/180.f), length * sin(angle * PI/180.3));
+	sf::Vertex start(pos);
+	sf::Vertex end(pos + endOffset);
+
+	start.color = color;
+	end.color = color;
+
+	sf::Vertex line[] = { start, end };
+
+	window->draw(line, 2, sf::Lines);
+}