diff --git a/src/Actor.cpp b/src/Actor.cpp
index bd0e47c..20e9b12 100644
--- a/src/Actor.cpp
+++ b/src/Actor.cpp
@@ -2,7 +2,11 @@
 #include "Tilemap.h"
 #include "BehaviourTree.h"
 
+int idcounter = 0;
+
 Actor::Actor(Tilemap * map, vec2i pos) {
+  id = idcounter++;
+  name = "Actor";
   this->map = map;
   position = pos;
   bt = nullptr;
diff --git a/src/Actor.h b/src/Actor.h
index a696bf2..de97c28 100644
--- a/src/Actor.h
+++ b/src/Actor.h
@@ -1,5 +1,6 @@
 #pragma once
 #include "vec2i.h"
+#include <string>
 
 class BehaviourTree;
 
@@ -19,6 +20,8 @@ class Actor {
 protected:
   BehaviourTree* bt;
 public:
+  int id;
+  std::string name;
   Tilemap* map;
   bool alive;
   int health;
diff --git a/src/App.cpp b/src/App.cpp
index e262ed5..31d89c1 100644
--- a/src/App.cpp
+++ b/src/App.cpp
@@ -100,6 +100,9 @@ int App::start() {
             case SDL_WINDOWEVENT_CLOSE:
               running = false;
               break;
+            case SDL_WINDOWEVENT_RESIZED:
+              renderer->set_window_size(ev.window.data1, ev.window.data2);
+              break;
             default:
               break;
           }
@@ -154,7 +157,9 @@ int App::start() {
     SDL_Delay(1);
   }
   delete renderer;
+  ImGui::Shutdown();
   SDL_Quit();
+
   SDL_LogVerbose(SDL_LOG_CATEGORY_SYSTEM, "Quit.");
   return 0;
 }
diff --git a/src/Config.cpp b/src/Config.cpp
index 08506b4..b780ebd 100644
--- a/src/Config.cpp
+++ b/src/Config.cpp
@@ -3,12 +3,13 @@
 #include <functional>
 #include <fstream>
 #include <sstream>
+#include <utility>
 #include <vector>
 #include <algorithm>
 
 using namespace std;
 
-bool isFloat(string myString) {
+bool isFloat(const string &myString) {
   istringstream iss(myString);
   float f;
   iss >> noskipws >> f; // noskipws considers leading whitespace invalid
@@ -16,7 +17,7 @@ bool isFloat(string myString) {
   return iss.eof() && !iss.fail();
 }
 
-bool isInt(string myString) {
+bool isInt(const string &myString) {
   istringstream iss(myString);
   int i;
   iss >> noskipws >> i; // noskipws considers leading whitespace invalid
@@ -45,7 +46,7 @@ static inline void trim(string &s) {
 
 
 Config::Config(string path) {
-  this->path = path;
+  this->path = std::move(path);
 }
 
 void Config::load() {
@@ -57,7 +58,7 @@ void Config::load() {
   if (conf.is_open()) {
     string line;
     while (getline(conf, line)) {
-      int pos = line.find("=");
+      unsigned int pos = line.find('=');
       if (pos > 0) {
         string key = line.substr(0, pos);
         string value = line.substr(pos + 1, line.length());
@@ -182,5 +183,24 @@ bool Config::getBool(std::string key, bool defaultvalue) {
 }
 
 
-Config::~Config() {
+Config::~Config() = default;
+
+void Config::setString(std::string key, std::string value) {
+  deleteValue(key);
+  strings.insert(pair<string, string>{key, value});
+}
+
+void Config::setInt(std::string key, int value) {
+  deleteValue(key);
+  ints.insert(pair<string, int>{key, value});
+}
+
+void Config::setFloat(std::string key, float value) {
+  deleteValue(key);
+  floats.insert(pair<string, float>{key, value});
+}
+
+void Config::setBool(std::string key, bool value) {
+  deleteValue(key);
+  bools.insert(pair<string, bool>{key, value});
 }
diff --git a/src/Config.h b/src/Config.h
index a69739d..1201a6e 100644
--- a/src/Config.h
+++ b/src/Config.h
@@ -17,6 +17,10 @@ public:
   int getInt(std::string key, int defaultvalue);
   float getFloat(std::string key, float defaultvalue);
   bool getBool(std::string key, bool defaultvalue);
+  void setString(std::string key, std::string value);
+  void setInt(std::string key, int value);
+  void setFloat(std::string key, float value);
+  void setBool(std::string key, bool value);
   ~Config();
 };
 
diff --git a/src/Goblin.cpp b/src/Goblin.cpp
index 6b50bcd..fac0aa4 100644
--- a/src/Goblin.cpp
+++ b/src/Goblin.cpp
@@ -8,6 +8,7 @@
 BehaviourTree* gobtree = nullptr;
 
 Goblin::Goblin(Tilemap* map, vec2i pos) : Actor(map, pos) {
+  name = "Goblin";
   alive = true;
   health = 4;
   maxhealth = 4;
diff --git a/src/Hero.cpp b/src/Hero.cpp
index cbb5428..6a1baa8 100644
--- a/src/Hero.cpp
+++ b/src/Hero.cpp
@@ -9,6 +9,7 @@
 #include "FleeNode.h"
 
 Hero::Hero(Tilemap* map, vec2i pos) : Actor(map, pos) {
+  name = "Hero";
   alive = true;
   health = 6;
   maxhealth = 6;
diff --git a/src/PlayState.cpp b/src/PlayState.cpp
index 7d1fad0..d6992b0 100644
--- a/src/PlayState.cpp
+++ b/src/PlayState.cpp
@@ -99,7 +99,7 @@ void PlayState::new_game() {
   tilemap = new Tilemap(32, 32);
   int y = 0;
   int x = 0;
-  for (int i = 0; i < map.length(); i++) {
+  for (char i : map) {
 
     if (y >= 32) {
       break;
@@ -108,25 +108,25 @@ void PlayState::new_game() {
       y++;
       x = 0;
     }
-    if (map[i] == ' ' || map[i] == '\t' || map[i] == '\n') {
+    if (i == ' ' || i == '\t' || i == '\n') {
       continue;
     }
 
-    if (map[i] == '@') {
+    if (i == '@') {
       hero = new Hero(tilemap, vec2i(x, y));
       tilemap->add_actor(hero);
       tilemap->set_tile(x, y, '.');
     }
-    else if (map[i] == 'g') {
+    else if (i == 'g') {
       tilemap->add_actor(new Goblin(tilemap, vec2i(x, y)));
       tilemap->set_tile(x, y, '.');
     }
-    else if (map[i] == 's') {
+    else if (i == 's') {
       tilemap->add_actor(new Shaman(tilemap, vec2i(x, y)));
       tilemap->set_tile(x, y, '.');
     }
     else {
-      tilemap->set_tile(x, y, map[i]);
+      tilemap->set_tile(x, y, i);
     }
     x++;
   }
@@ -168,10 +168,13 @@ Gamestate *PlayState::update(double delta) {
           }
         }
       }
+      hero->update();
+      fov->calc(hero->get_position(), 6);
     }
 
     auto actors = tilemap->get_actor_list();
     for (Actor* var : *actors) {
+      if (var == hero) continue;
       var->update();
     }
     for (int i = (int)actors->size() - 1; i >= 0; i--) {
@@ -183,38 +186,57 @@ Gamestate *PlayState::update(double delta) {
         actors->erase(actors->begin() + i);
       }
     }
-    if (hero) {
-      fov->calc(hero->get_position(), 6);
-    }
     action = ACTION_NONE;
   }
   return nullptr;
 }
 
+bool debug_actors = false;
+bool debug_settings = false;
+
 void PlayState::draw(double delta) {
   if (debug) {
-    bool wireframe = app->renderer->is_wireframes_enabled();
-    ImGui::Checkbox("Wireframes", &wireframe);
-    app->renderer->set_wireframes_enabled(wireframe);
-    bool vsync = app->renderer->is_vsync_enabled();
-    ImGui::Checkbox("VSync", &vsync);
-    app->renderer->set_vsync_enabled(vsync);
+    {
+      ImGui::BeginMainMenuBar();
 
-    ImGui::BeginMainMenuBar();
+      if (ImGui::BeginMenu("View")) {
+        ImGui::MenuItem("Settings", nullptr, &debug_settings);
+        ImGui::MenuItem("Actors", nullptr, &debug_actors);
+        ImGui::EndMenu();
+      }
 
-    if (ImGui::BeginMenu("File")) {
-      ImGui::EndMenu();
+      ImGui::EndMainMenuBar();
     }
+    if (debug_settings) {
+      ImGui::Begin("Settings", &debug_settings);
 
-    if (ImGui::BeginMenu("Edit")) {
-      ImGui::EndMenu();
+      bool wireframe = app->renderer->is_wireframes_enabled();
+      ImGui::Checkbox("Wireframes", &wireframe);
+      app->renderer->set_wireframes_enabled(wireframe);
+      bool vsync = app->renderer->is_vsync_enabled();
+      ImGui::Checkbox("VSync", &vsync);
+      app->renderer->set_vsync_enabled(vsync);
+
+      ImGui::End();
     }
+    if (debug_actors) {
+      ImGui::Begin("Actors", &debug_actors);
 
-    if (ImGui::BeginMenu("View")) {
-      ImGui::EndMenu();
+      auto actors = tilemap->get_actor_list();
+      const char* headers[] {
+          "id", "name", "health"
+      };
+      static float widths[3]{0.2f, 0.5f, 0.3f};
+      ImGui::BeginTable("ActorColumns", headers, widths, 3);
+      for (Actor* act : *actors) {
+        ImGui::Text("%d", act->id); ImGui::NextColumn();
+        ImGui::Text(act->name.c_str()); ImGui::NextColumn();
+        ImGui::Text("%d/%d", act->health, act->maxhealth); ImGui::NextColumn();
+      }
+      ImGui::EndTable();
+
+      ImGui::End();
     }
-
-    ImGui::EndMainMenuBar();
   }
 
   vec2i asciisize = {
diff --git a/src/Renderer.cpp b/src/Renderer.cpp
index d85bb8e..2d0ef4f 100644
--- a/src/Renderer.cpp
+++ b/src/Renderer.cpp
@@ -9,21 +9,22 @@
 #include "imgui_impl_sdl_gl3.h"
 #include <glm/gtx/transform.hpp>
 #include <glm/matrix.hpp>
+#include <utility>
 
 const GLfloat rectVertData[]{
   0,0,0, 1,0,0, 0,1,0, 1,1,0
 };
 
 glm::mat4 screenVPmat;
-float widthmult;
-float heightmult;
+double widthmult;
+double heightmult;
 
 GLuint LoadShader(const char* path, GLenum shadertype) {
   GLuint shaderId = glCreateShader(shadertype);
   std::string shadersource;
   std::ifstream shaderstream(path, std::ios::in);
   if (shaderstream.is_open()) {
-    std::string line = "";
+    std::string line;
     while (getline(shaderstream, line)) {
       shadersource += line + "\n";
     }
@@ -105,8 +106,8 @@ Renderer::~Renderer() {
 GLuint shaderProg;
 GLuint wireShaderProg;
 GLuint spriteVertArrayId;
-GLuint colorUniform;
-GLuint mvpUniform;
+GLint colorUniform;
+GLint mvpUniform;
 
 bool Renderer::Init(std::string title, int width, int height) {
   SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
@@ -114,7 +115,7 @@ bool Renderer::Init(std::string title, int width, int height) {
   SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 2);
   SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
 
-  window = SDL_CreateWindow(title.data(), SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, width, height, SDL_WINDOW_OPENGL);
+  window = SDL_CreateWindow(title.data(), SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, width, height, SDL_WINDOW_OPENGL /* | SDL_WINDOW_RESIZABLE */);
   if (window == NULL) {
     SDL_LogCritical(SDL_LOG_CATEGORY_RENDER,"Failed to create a window!\n");
     return false;
@@ -164,7 +165,7 @@ bool Renderer::Init(std::string title, int width, int height) {
   colorUniform = glGetUniformLocation(shaderProg, "colortint");
   mvpUniform = glGetUniformLocation(shaderProg, "MVP");
 
-  SetWindowSize(width, height);
+  set_window_size(width, height);
 
   SDL_LogDebug(SDL_LOG_CATEGORY_RENDER, "Renderer initialized.\n");
   return true;
@@ -174,35 +175,35 @@ void Renderer::set_color(float r, float g, float b, float a) {
   currentcolor = { r, g, b, a };
 }
 
-void Renderer::SetColor(Color col) {
+void Renderer::set_color(Color col) {
   set_color(col.r, col.g, col.b, col.a);
 }
 
-void Renderer::SetTitle(const char * title) {
+void Renderer::set_title(const char *title) {
   SDL_SetWindowTitle(window, title);
 }
 
-void Renderer::SetWindowSize(int width, int height) {
+void Renderer::set_window_size(int width, int height) {
   SDL_SetWindowSize(window, width, height);
 
   windowwidth = width;
   windowheight = height;
 
-  widthmult = 1.f / windowwidth * 2;
-  heightmult = 1.f / windowheight * 2;
+  widthmult = 1. / windowwidth * 2;
+  heightmult = 1. / windowheight * 2;
 
   glm::mat4 projection = glm::ortho(-1, 1, 1, -1);
   glm::mat4 view = glm::scale(glm::vec3(widthmult, heightmult, 1)) * glm::translate(glm::vec3(-windowwidth / 2, -windowheight / 2, 0)) * glm::mat4(1);
 
   screenVPmat = projection * view;
-  SDL_LogDebug(SDL_LOG_CATEGORY_RENDER, "Window size set to %dx%d.\n", width, height);
+  SDL_LogDebug(SDL_LOG_CATEGORY_RENDER, "Window size set to %dx%d.\n", windowwidth, windowheight);
 }
 
-void Renderer::SetClearColor(float r, float g, float b, float a) {
+void Renderer::set_clear_color(float r, float g, float b, float a) {
   glClearColor(r, g, b, a);
 }
 
-void Renderer::SetClearColor(Color col) {
+void Renderer::set_clear_color(Color col) {
   glClearColor(col.r, col.g, col.b, col.a);
 }
 
@@ -265,7 +266,7 @@ Texture * Renderer::LoadTexture(std::string path) {
       glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
       glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
 
-      Texture t;
+      Texture t{};
       t.id = textureId;
       t.w = surface->w;
       t.h = surface->h;
@@ -294,10 +295,10 @@ Sprite Renderer::CreateSprite(std::string path, int x, int y, int w, int h) {
   sprite.region.y = y;
   sprite.region.w = w;
   sprite.region.h = h;
-  sprite.texture = LoadTexture(path);
+  sprite.texture = LoadTexture(std::move(path));
   if (sprite.texture != nullptr) {
-    float tw = (float)sprite.texture->w;
-    float th = (float)sprite.texture->h;
+    auto tw = (float)sprite.texture->w;
+    auto th = (float)sprite.texture->h;
     const float uvs[] = {
       x / tw, y / th,
       (x + w) / tw, y / th,
@@ -319,7 +320,6 @@ void Renderer::draw_sprite(Sprite *sprite, int x, int y, float sx, float sy) {
   glm::mat4 model = glm::translate(glm::vec3(x, y, 0)) * glm::scale(glm::vec3(sprite->region.w * sx, sprite->region.h * sy, 1)) * glm::mat4(1);
 
   glm::mat4 mvp = screenVPmat * model;
-
     
   glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
 
@@ -337,9 +337,9 @@ void Renderer::draw_sprite(Sprite *sprite, int x, int y, float sx, float sy) {
   glEnableVertexAttribArray(0);
   glEnableVertexAttribArray(1);
   glBindBuffer(GL_ARRAY_BUFFER, spriteVBuf);
-  glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, (void*)0);
+  glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, nullptr);
   glBindBuffer(GL_ARRAY_BUFFER, sprite->uvBuf);
-  glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 0, (void*)0);
+  glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 0, nullptr);
 
   glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
 
@@ -353,9 +353,9 @@ void Renderer::draw_sprite(Sprite *sprite, int x, int y, float sx, float sy) {
     glEnableVertexAttribArray(0);
     glEnableVertexAttribArray(1);
     glBindBuffer(GL_ARRAY_BUFFER, spriteVBuf);
-    glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, (void*)0);
+    glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, nullptr);
     glBindBuffer(GL_ARRAY_BUFFER, sprite->uvBuf);
-    glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 0, (void*)0);
+    glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 0, nullptr);
 
     glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
   }
diff --git a/src/Renderer.h b/src/Renderer.h
index 9122a97..48bcccd 100644
--- a/src/Renderer.h
+++ b/src/Renderer.h
@@ -47,11 +47,11 @@ public:
   ~Renderer();
   bool Init(std::string title, int width, int height);
   void set_color(float r, float g, float b, float a);
-  void SetColor(Color col);
-  void SetTitle(const char* title);
-  void SetWindowSize(int width, int height);
-  void SetClearColor(float r, float g, float b, float a);
-  void SetClearColor(Color col);
+  void set_color(Color col);
+  void set_title(const char *title);
+  void set_window_size(int width, int height);
+  void set_clear_color(float r, float g, float b, float a);
+  void set_clear_color(Color col);
   void set_vsync_enabled(bool enabled);
   bool is_vsync_enabled();
   void set_wireframes_enabled(bool enabled);
diff --git a/src/Shaman.cpp b/src/Shaman.cpp
index b37bc00..97e794d 100644
--- a/src/Shaman.cpp
+++ b/src/Shaman.cpp
@@ -12,6 +12,7 @@
 BehaviourTree* shamtree = nullptr;
 
 Shaman::Shaman(Tilemap* map, vec2i pos) : Actor(map, pos) {
+  name = "Shaman";
   alive = true;
   health = 2;
   maxhealth = 2;
diff --git a/src/imconfig.h b/src/imconfig.h
index 9d31631..03b5beb 100644
--- a/src/imconfig.h
+++ b/src/imconfig.h
@@ -14,7 +14,7 @@
 //#define IMGUI_API __declspec( dllimport )
 
 //---- Include imgui_user.h at the end of imgui.h
-//#define IMGUI_INCLUDE_IMGUI_USER_H
+#define IMGUI_INCLUDE_IMGUI_USER_H
 
 //---- Don't implement default handlers for Windows (so as not to link with OpenClipboard() and others Win32 functions)
 //#define IMGUI_DISABLE_WIN32_DEFAULT_CLIPBOARD_FUNCS
diff --git a/src/imgui_user.cpp b/src/imgui_user.cpp
new file mode 100644
index 0000000..f09ad42
--- /dev/null
+++ b/src/imgui_user.cpp
@@ -0,0 +1,72 @@
+//
+// Created by Adrian on 2017-09-23.
+//
+
+#include <cstdio>
+#include "imgui.h"
+
+namespace ImGui {
+  int BeginTable(const char* columnsId, const char** headers, float* widths, int count, bool draw_border)
+  {
+    if(count<=0)
+      return 0;
+
+    // Draw column headers
+    ImGuiStyle & style = ImGui::GetStyle();
+    const ImVec2 firstTextSize = ImGui::CalcTextSize(headers[0], NULL, true);
+
+    ImGui::BeginChild(columnsId, ImVec2(0,firstTextSize.y + 2 * style.ItemSpacing.y), true);
+
+    char str_id[256];
+    sprintf(str_id, "tbl0_%s", columnsId);
+    ImGui::Columns(count, str_id, draw_border);
+
+    float offset = 0.0f;
+    for(int i=0; i < count; i++)
+    {
+      ImGui::SetColumnOffset(i, offset);
+
+      if(widths[i] <= 0)
+      {
+        const ImVec2 textsize = ImGui::CalcTextSize(headers[i], NULL, true);
+        const float colSizeX = (textsize.x + 2 * style.ItemSpacing.x);
+        widths[i] = colSizeX + 1;
+      }
+
+      if(i < (count-1))
+      {
+        float curOffset = offset;
+        offset = ImGui::GetColumnOffset(i+1);
+        widths[i] = offset - curOffset + 1;
+      }
+
+      ImGui::Text(headers[i]);
+      ImGui::NextColumn();
+    }
+
+    ImGui::Columns(1);
+    ImGui::EndChild();
+
+    // Draw body
+    str_id[3] = '1';
+    columnsId = str_id;
+
+    ImGui::BeginChild(columnsId, ImVec2(0,0), true);
+    ImGui::Columns(count, columnsId, draw_border);
+
+    offset = 0.0f;
+    for(int i=0; i < count; i++)
+    {
+      ImGui::SetColumnOffset(i, offset);
+      offset += widths[i] - 1;
+    }
+
+    return 1;
+  }
+
+  void EndTable()
+  {
+    ImGui::Columns(1);
+    ImGui::EndChild();
+  }
+}
diff --git a/src/imgui_user.h b/src/imgui_user.h
new file mode 100644
index 0000000..44833ee
--- /dev/null
+++ b/src/imgui_user.h
@@ -0,0 +1,31 @@
+//
+// Created by Adrian on 2017-09-23.
+//
+
+#ifndef DUNGEON_IMGUI_USER_H
+#define DUNGEON_IMGUI_USER_H
+
+namespace ImGui {
+  /*  // [table src] https://github.com/ocornut/imgui/issues/513#issuecomment-240388455
+
+      // Usage:
+      static const char *headers[] = {
+          "Index", "Color", "Flip?", "Filename"
+      };
+      static float widths[ IM_ARRAYSIZE(headers) ] = {};
+      if( ImGui::BeginTable("WinTextureContent", headers, widths, IM_ARRAYSIZE(headers)) ) {
+          // Draw as many rows as needed
+          for( int i = 0; i < 10; ++i ) {
+              ImGui::Text("%d", i);                              ImGui::NextColumn();
+              ImGui::ColorButton( ImVec4(0.5f,0.2f,i*0.3f,1.f)); ImGui::NextColumn();
+              ImGui::Text("%s", i % 2 ? "yes" : "no");           ImGui::NextColumn();
+              ImGui::Text(__FILE__);                             ImGui::NextColumn();
+          }
+          ImGui::EndTable();
+      }
+  */
+  int  BeginTable(const char* columnsId, const char** headers, float *widths, int count, bool border=true);
+  void EndTable();
+}
+
+#endif //DUNGEON_IMGUI_USER_H