All changes made for 10th part of tutorial

voxel_engine.cpp - changed structure, added character controls, physics
almost all files are modified (including shaders)
+ new source directory - physics

src/window/Camera.cpp

@@ -10,7 +10,7 @@
 
 #include <glm/ext.hpp>
 
-Camera::Camera(vec3 position, float fov) : position(position), fov(fov), rotation(1.0f) {
+Camera::Camera(vec3 position, float fov) : position(position), fov(fov), zoom(1.0f), rotation(1.0f) {
 	updateVectors();
 }
 
@@ -18,6 +18,13 @@ void Camera::updateVectors(){
 	front = vec3(rotation * vec4(0,0,-1,1));
 	right = vec3(rotation * vec4(1,0,0,1));
 	up = vec3(rotation * vec4(0,1,0,1));
+	dir = vec3(rotation * vec4(0,0,-1,1));
+	dir.y = 0;
+	float len = length(dir);
+	if (len > 0.0f){
+		dir.x /= len;
+		dir.z /= len;
+	}
 }
 
 void Camera::rotate(float x, float y, float z){
@@ -30,7 +37,7 @@ void Camera::rotate(float x, float y, float z){
 
 mat4 Camera::getProjection(){
 	float aspect = (float)Window::width / (float)Window::height;
-	return glm::perspective(fov, aspect, 0.1f, 1500.0f);
+	return glm::perspective(fov*zoom, aspect, 0.05f, 1500.0f);
 }
 
 mat4 Camera::getView(){