diff --git a/src/app.cpp b/src/app.cpp
index e376b05..da68615 100644
--- a/src/app.cpp
+++ b/src/app.cpp
@@ -1,6 +1,7 @@
 #include "app.h"
 
 #include "map/map.h"
+#include "tiles/rainbow.h"
 #include "tiles/dirt.h"
 #include "tiles/grass.h"
 #include "util/vector2.h"
@@ -20,8 +21,6 @@ bool App::OnUserCreate()
 
 bool App::OnUserUpdate(float delta)
 {
-    (void)delta;
-
     Vector2<int> screen = {ScreenWidth(), ScreenHeight()};
     Vector2<int> mouse = {GetMouseX(), GetMouseY()};
 
@@ -37,7 +36,7 @@ bool App::OnUserUpdate(float delta)
         auto tile_pos = screen_pos / (TILE_SIZE + 1);
         if(screen_pos.x() < 0) tile_pos -= {1, 0};
         if(screen_pos.y() < 0) tile_pos -= {0, 1};
-        m_map.set_tile(tile_pos, new Tile());
+        m_map.set_tile(tile_pos, new Rainbow());
     }
     if(GetMouse(1).bPressed) {
         auto screen_pos = mouse - m_camera_pos;
@@ -67,7 +66,8 @@ bool App::OnUserUpdate(float delta)
 
     for(int y = min.y() - 1; y < max.y() + 1; y++) {
         for(int x = min.x() - 1; x < max.x() + 1; x++) {
-            auto node = m_map.at(Vector2<int>(x, y));
+            auto &node = m_map.at(Vector2<int>(x, y));
+            node.update(delta);
             node.render(m_render);
         }
     }
diff --git a/src/entities/entity.cpp b/src/entities/entity.cpp
new file mode 100644
index 0000000..62c1d0f
--- /dev/null
+++ b/src/entities/entity.cpp
@@ -0,0 +1,21 @@
+#include "entities/entity.h"
+#include "map/node.h"
+
+void Entity::update(double dt) {
+    (void)dt;
+    std::cout << "Entity " << m_id << " did not override update, you fucked up!" << std::endl;
+}
+
+std::ostream &operator<<(std::ostream &os, const Entity &entity) {
+    os.write(reinterpret_cast<const char *>(&entity.m_id), sizeof(entity.m_id));
+
+    return os;
+}
+
+std::istream &operator>>(std::istream &is, Entity &entity) {
+    (void)entity;
+
+    return is;
+}
+
+
diff --git a/src/entities/entity.h b/src/entities/entity.h
new file mode 100644
index 0000000..05ef9ff
--- /dev/null
+++ b/src/entities/entity.h
@@ -0,0 +1,35 @@
+#pragma once
+
+#include <iostream>
+
+class Node;
+
+class Entity {
+    public:
+        Entity() : Entity(-1) {}
+        Entity(int id) : m_id(id) {}
+
+        Entity(const Entity &other) = default;
+        Entity &operator=(const Entity &other) = delete;
+
+        virtual ~Entity() = default;
+
+        virtual Entity *clone() { return new Entity(*this); }
+
+        void set_node(Node *node) { m_node = node; }
+        Node &node() { return *m_node; }
+
+        // Get the tile's ID
+        int id() { return m_id; }
+        // void set_id(int id) { m_id = id; }
+
+        virtual void update(double dt);
+
+        friend std::ostream &operator<<(std::ostream &os, const Entity &tile);
+        friend std::istream &operator>>(std::istream &is, Entity &tile);
+
+    private:
+        Node *m_node;
+
+        int m_id;
+};
diff --git a/src/entities/rainbow.cpp b/src/entities/rainbow.cpp
new file mode 100644
index 0000000..63e2b2d
--- /dev/null
+++ b/src/entities/rainbow.cpp
@@ -0,0 +1,18 @@
+#include "entities/rainbow.h"
+
+#include <iostream>
+
+namespace entity {
+
+void Rainbow::update(double dt) {
+    m_time += dt;
+
+    if(m_time - m_prev_time > 0.1) {
+        std::cout << "Entity tick 1 second" << std::endl;
+        m_prev_time = m_time;
+        m_color = Color::from_hsv(rand() % 255, 255, 255);
+    }
+}
+
+}  // End namespace entity
+
diff --git a/src/entities/rainbow.h b/src/entities/rainbow.h
new file mode 100644
index 0000000..6ba6142
--- /dev/null
+++ b/src/entities/rainbow.h
@@ -0,0 +1,30 @@
+#include "entities/entity.h"
+#include "map/node.h"
+
+namespace entity {
+
+class Rainbow : public Entity {
+    public:
+        Rainbow() : Entity(4) { std::cout << "Rainbow construct" << std::endl; }
+
+        Rainbow(const Rainbow &other) = default;
+        Rainbow &operator=(const Rainbow &other) = default;
+
+        virtual ~Rainbow() = default; //{ std::cout << "Rainbow destruct" << std::endl; }
+
+        virtual Rainbow *clone() { return new Rainbow(*this); }
+
+        void update(double dt) override;
+
+        void set_color(Color color) { m_color = color; }
+        Color color() { return m_color; }
+
+    private:
+        double m_time = 0;
+        double m_prev_time = 0;
+
+        Color m_color = Color::from_hsv(rand() % 255, 255, 255);
+};
+
+}  // End namespace entity
+
diff --git a/src/map/node.cpp b/src/map/node.cpp
index a7800d4..bd87b68 100644
--- a/src/map/node.cpp
+++ b/src/map/node.cpp
@@ -3,10 +3,19 @@
 #include "tiles/dirt.h"
 #include "tiles/grass.h"
 #include "tiles/stone.h"
+#include "tiles/rainbow.h"
 
 Node::Node(const Node &other) {
-    if(other.m_tile) m_tile = other.m_tile->clone();
-    // if(other.m_entity) m_entity = other.m_entity->clone();
+    if(other.m_tile) {
+        m_tile = other.m_tile->clone();
+        m_tile->set_node(this);
+    }
+
+    if(other.m_entity) {
+        std::cout << "Entity being cloned" << std::endl;
+        m_entity = other.m_entity->clone();
+        m_entity->set_node(this);
+    }
 
     m_pos = other.m_pos;
     m_size = other.m_size;
@@ -14,12 +23,51 @@ Node::Node(const Node &other) {
 
 Node::~Node() {
     if(m_tile) delete m_tile;
-    // if(m_entity) delete(m_entity);
+    if(m_entity) delete m_entity;
+}
+
+void Node::set_tile(Tile *tile) {
+    if(!tile) {
+        std::cout << "Tried to set null tile!" << std::endl;
+        return;
+    }
+    if(m_tile) {
+        delete m_tile;
+        m_tile = nullptr;
+    }
+    if(m_entity) {
+        delete m_entity;
+        m_entity = nullptr;
+    }
+
+    m_tile = tile;
+    m_tile->set_node(this);
+
+    set_entity(m_tile->create_entity());
+}
+
+void Node::set_entity(Entity *entity) {
+    std::cout << "Entity set!@#?! " << entity << std::endl;
+    if(!entity)
+        return;
+
+    if(m_entity) {
+        delete m_entity;
+        m_entity = nullptr;
+    }
+
+    m_entity = entity;
+    m_entity->set_node(this);
+}
+
+void Node::update(double dt) {
+    if(m_entity)
+        m_entity->update(dt);
 }
 
 void Node::render(Render r) {
     if(m_tile)
-        m_tile->render(r, pos(), size());
+        m_tile->render(r);
 }
 
 std::ostream &operator<<(std::ostream &os, const Node &node) {
@@ -57,7 +105,12 @@ std::istream &operator>>(std::istream &is, Node &node) {
                 break;
             case 3:
                 tile = new Stone();
+                break;
+            case 4:
+                tile = new Rainbow();
+                break;
             default:
+                std::cout << "Invalid tile" << std::endl;
                 break;
         }
         if(tile) node.set_tile(tile);
diff --git a/src/map/node.h b/src/map/node.h
index 8bda56c..1cb283a 100644
--- a/src/map/node.h
+++ b/src/map/node.h
@@ -3,6 +3,7 @@
 #include <iostream>
 
 #include "tiles/tile.h"
+#include "entities/entity.h"
 #include "util/render.h"
 #include "util/vector2.h"
 
@@ -20,16 +21,12 @@ class Node {
         ~Node();
 
         // Get a reference to the tile associated with this node
-        Tile *tile() { return m_tile; }
-        void set_tile(Tile *tile) {
-            if(m_tile)
-                delete m_tile;
-
-            m_tile = tile;
-        }
+        Tile &tile() { return *m_tile; }
+        void set_tile(Tile *tile);
 
         // Get a reference to the tile entity associated with this node
-        // Entity &entity() { return *m_entity; }
+        Entity &entity() { return *m_entity; }
+        void set_entity(Entity *tile);
 
         // Get/Set the position in world coordinates
         Vector2<int> pos() { return m_pos; }
@@ -39,6 +36,7 @@ class Node {
         Vector2<int> size() { return m_size; }
         void set_size(Vector2<int> size) { m_size = size; }
 
+        void update(double dt);
         void render(Render r);
 
         friend std::ostream &operator<<(std::ostream &os, const Node &node);
@@ -47,7 +45,7 @@ class Node {
 
     private:
         Tile *m_tile = 0;
-        // Entity *m_entity;
+        Entity *m_entity = 0;
 
         Vector2<int> m_pos;
         Vector2<int> m_size;
diff --git a/src/tiles/dirt.cpp b/src/tiles/dirt.cpp
index 8aa7f08..97d8e03 100644
--- a/src/tiles/dirt.cpp
+++ b/src/tiles/dirt.cpp
@@ -1,9 +1,9 @@
 #include "tiles/dirt.h"
 
-void Dirt::render(Render r, Vector2<int>pos, Vector2<int>size) {
+void Dirt::render(Render r) {
     r.fill_rectangle_sz(
-        pos * (TILE_SIZE + 1),
-        size * TILE_SIZE,
+        node().pos() * (TILE_SIZE + 1),
+        node().size() * TILE_SIZE,
         {100, 50, 10}
     );
 }
diff --git a/src/tiles/dirt.h b/src/tiles/dirt.h
index 6d629ef..0540cbf 100644
--- a/src/tiles/dirt.h
+++ b/src/tiles/dirt.h
@@ -1,4 +1,5 @@
 #include "tiles/tile.h"
+#include "map/node.h"
 
 class Dirt : public Tile {
     public:
@@ -11,7 +12,7 @@ class Dirt : public Tile {
 
         virtual Dirt *clone() { return new Dirt(*this); }
 
-        void render(Render r, Vector2<int>pos, Vector2<int>size) override;
+        void render(Render r) override;
 
     private:
 
diff --git a/src/tiles/grass.cpp b/src/tiles/grass.cpp
index 7f71c3b..d5b7ca5 100644
--- a/src/tiles/grass.cpp
+++ b/src/tiles/grass.cpp
@@ -1,9 +1,9 @@
 #include "tiles/grass.h"
 
-void Grass::render(Render r, Vector2<int>pos, Vector2<int>size) {
+void Grass::render(Render r) {
     r.fill_rectangle_sz(
-        pos * (TILE_SIZE + 1),
-        size * TILE_SIZE,
+        node().pos() * (TILE_SIZE + 1),
+        node().size() * TILE_SIZE,
         {7, 176, 52}
     );
 }
diff --git a/src/tiles/grass.h b/src/tiles/grass.h
index c154d18..f98db8c 100644
--- a/src/tiles/grass.h
+++ b/src/tiles/grass.h
@@ -1,4 +1,5 @@
 #include "tiles/tile.h"
+#include "map/node.h"
 
 class Grass : public Tile {
     public:
@@ -11,7 +12,7 @@ class Grass : public Tile {
 
         virtual Grass *clone() { return new Grass(*this); }
 
-        void render(Render r, Vector2<int>pos, Vector2<int>size) override;
+        void render(Render r) override;
 
     private:
 
diff --git a/src/tiles/rainbow.cpp b/src/tiles/rainbow.cpp
new file mode 100644
index 0000000..289e526
--- /dev/null
+++ b/src/tiles/rainbow.cpp
@@ -0,0 +1,17 @@
+#include "tiles/rainbow.h"
+#include "entities/rainbow.h"
+
+Entity *Rainbow::create_entity() {
+    std::cout << "Create called" << std::endl;
+    return new entity::Rainbow();
+}
+
+void Rainbow::render(Render r) {
+    auto &entity = (entity::Rainbow &)node().entity();
+    r.fill_rectangle_sz(
+        node().pos() * (TILE_SIZE + 1),
+        node().size() * TILE_SIZE,
+        entity.color()
+    );
+}
+
diff --git a/src/tiles/rainbow.h b/src/tiles/rainbow.h
new file mode 100644
index 0000000..0b4d47d
--- /dev/null
+++ b/src/tiles/rainbow.h
@@ -0,0 +1,21 @@
+#include "tiles/tile.h"
+#include "map/node.h"
+
+class Rainbow : public Tile {
+    public:
+        Rainbow() : Tile(4) {}
+
+        Rainbow(const Rainbow &other) = default;
+        Rainbow &operator=(const Rainbow &other) = delete;
+
+        virtual ~Rainbow() = default;
+
+        virtual Rainbow *clone() { return new Rainbow(*this); }
+
+        Entity *create_entity() override;
+
+        void render(Render r) override;
+
+    private:
+
+};
diff --git a/src/tiles/stone.cpp b/src/tiles/stone.cpp
index 8737328..fa90dd3 100644
--- a/src/tiles/stone.cpp
+++ b/src/tiles/stone.cpp
@@ -1,9 +1,9 @@
 #include "tiles/stone.h"
 
-void Stone::render(Render r, Vector2<int>pos, Vector2<int>size) {
+void Stone::render(Render r) {
     r.fill_rectangle_sz(
-        pos * (TILE_SIZE + 1),
-        size * TILE_SIZE,
+        node().pos() * (TILE_SIZE + 1),
+        node().size() * TILE_SIZE,
         {42, 42, 42}
     );
 }
diff --git a/src/tiles/stone.h b/src/tiles/stone.h
index 7f2a4f1..71bd602 100644
--- a/src/tiles/stone.h
+++ b/src/tiles/stone.h
@@ -1,4 +1,5 @@
 #include "tiles/tile.h"
+#include "map/node.h"
 
 class Stone : public Tile {
     public:
@@ -11,7 +12,7 @@ class Stone : public Tile {
 
         virtual Stone *clone() { return new Stone(*this); }
 
-        void render(Render r, Vector2<int>pos, Vector2<int>size) override;
+        void render(Render r) override;
 
     private:
 
diff --git a/src/tiles/tile.cpp b/src/tiles/tile.cpp
index ae2eccc..d611556 100644
--- a/src/tiles/tile.cpp
+++ b/src/tiles/tile.cpp
@@ -1,22 +1,32 @@
 #include "tiles/tile.h"
+#include "map/node.h"
+#include "entities/rainbow.h"
 
-void Tile::render(Render r, Vector2<int>pos, Vector2<int>size) {
+Entity *Tile::create_entity() {
+    // std::cout << "Tile " << id() << " did not override create_entity, it is boring..." << std::endl;
+    return nullptr;
+}
+
+void Tile::render(Render r) {
     r.rectangle_sz(
-        pos * (TILE_SIZE + 1),
-        size * TILE_SIZE,
-        m_color
+        node().pos() * (TILE_SIZE + 1),
+        node().size() * TILE_SIZE,
+        {255, 0, 0}
     );
 }
 
 std::ostream &operator<<(std::ostream &os, const Tile &tile) {
+    Color tmp;
     os.write(reinterpret_cast<const char *>(&tile.m_id), sizeof(tile.m_id));
-    os.write(reinterpret_cast<const char *>(&tile.m_color), sizeof(tile.m_color));
+    os.write(reinterpret_cast<const char *>(&tmp), sizeof(tmp));
 
     return os;
 }
 
 std::istream &operator>>(std::istream &is, Tile &tile) {
-    is.read(reinterpret_cast<char *>(&tile.m_color), sizeof(tile.m_color));
+    (void)tile;
+    Color tmp;
+    is.read(reinterpret_cast<char *>(&tmp), sizeof(tmp));
 
     return is;
 }
diff --git a/src/tiles/tile.h b/src/tiles/tile.h
index 4b5297b..a24d408 100644
--- a/src/tiles/tile.h
+++ b/src/tiles/tile.h
@@ -2,10 +2,13 @@
 
 #include <iostream>
 
+#include "entities/entity.h"
 #include "util/render.h"
 #include "util/vector2.h"
 
-#define TILE_SIZE    16
+#define TILE_SIZE    8
+
+class Node;
 
 class Tile {
     public:
@@ -19,16 +22,22 @@ class Tile {
 
         virtual Tile *clone() { return new Tile(*this); }
 
+        void set_node(Node *node) { m_node = node; }
+        Node &node() { return *m_node; }
+
+        virtual Entity *create_entity();
+
         // Get the tile's ID
         int id() { return m_id; }
         // void set_id(int id) { m_id = id; }
 
-        virtual void render(Render r, Vector2<int>pos, Vector2<int>size);
+        virtual void render(Render r);
 
         friend std::ostream &operator<<(std::ostream &os, const Tile &tile);
         friend std::istream &operator>>(std::istream &is, Tile &tile);
 
     private:
+        Node *m_node;
+
         int m_id;
-        Color m_color = Color::from_hsv(rand() % 255, 255, 255);
 };