diff --git a/Debug/src/graphics/subdir.mk b/Debug/src/graphics/subdir.mk
index 35070f37..995ec1bb 100644
--- a/Debug/src/graphics/subdir.mk
+++ b/Debug/src/graphics/subdir.mk
@@ -1,28 +1,27 @@
-################################################################################
-# Automatically-generated file. Do not edit!
-################################################################################
-
 # Add inputs and outputs from these tool invocations to the build variables 
 CPP_SRCS += \
 ../src/graphics/LineBatch.cpp \
 ../src/graphics/Mesh.cpp \
 ../src/graphics/Shader.cpp \
 ../src/graphics/Texture.cpp \
-../src/graphics/VoxelRenderer.cpp 
+../src/graphics/VoxelRenderer.cpp \
+../src/graphics/Batch2D.cpp
 
 OBJS += \
 ./src/graphics/LineBatch.o \
 ./src/graphics/Mesh.o \
 ./src/graphics/Shader.o \
 ./src/graphics/Texture.o \
-./src/graphics/VoxelRenderer.o 
+./src/graphics/VoxelRenderer.o \
+./src/graphics/Batch2D.o 
 
 CPP_DEPS += \
 ./src/graphics/LineBatch.d \
 ./src/graphics/Mesh.d \
 ./src/graphics/Shader.d \
 ./src/graphics/Texture.d \
-./src/graphics/VoxelRenderer.d 
+./src/graphics/VoxelRenderer.d \
+./src/graphics/Batch2D.d
 
 
 # Each subdirectory must supply rules for building sources it contributes
diff --git a/Debug/src/objects/subdir.mk b/Debug/src/objects/subdir.mk
index 4757b8dd..1b72aeb0 100644
--- a/Debug/src/objects/subdir.mk
+++ b/Debug/src/objects/subdir.mk
@@ -1,7 +1,3 @@
-################################################################################
-# Automatically-generated file. Do not edit!
-################################################################################
-
 # Add inputs and outputs from these tool invocations to the build variables 
 CPP_SRCS += \
 ../src/objects/Player.cpp 
diff --git a/Debug/src/subdir.mk b/Debug/src/subdir.mk
index e4dbf713..e6fcb3f3 100644
--- a/Debug/src/subdir.mk
+++ b/Debug/src/subdir.mk
@@ -4,13 +4,16 @@
 
 # Add inputs and outputs from these tool invocations to the build variables 
 CPP_SRCS += \
-../src/voxel_engine.cpp 
+../src/voxel_engine.cpp \
+../src/Assets.cpp 
 
 OBJS += \
-./src/voxel_engine.o 
+./src/voxel_engine.o \
+./src/Assets.o 
 
 CPP_DEPS += \
-./src/voxel_engine.d 
+./src/voxel_engine.d \
+./src/Assets.d 
 
 
 # Each subdirectory must supply rules for building sources it contributes
diff --git a/Debug_win/sources.mk b/Debug_win/sources.mk
index bb746f07..26037f00 100644
--- a/Debug_win/sources.mk
+++ b/Debug_win/sources.mk
@@ -22,13 +22,14 @@ CPP_DEPS :=
 C_DEPS := 
 
 # Every subdirectory with source files must be described here
-SUBDIRS := \
-src \
-src/files \
-src/graphics \
-src/lighting \
-src/loaders \
-src/physics \
-src/voxels \
-src/window \
+SUBDIRS := \
+src \
+src/files \
+src/graphics \
+src/lighting \
+src/loaders \
+src/physics \
+src/voxels \
+src/objects \
+src/window \
 
diff --git a/Debug_win/src/graphics/subdir.mk b/Debug_win/src/graphics/subdir.mk
index 2e37caee..2b3a0102 100644
--- a/Debug_win/src/graphics/subdir.mk
+++ b/Debug_win/src/graphics/subdir.mk
@@ -1,28 +1,27 @@
-################################################################################
-# Automatically-generated file. Do not edit!
-################################################################################
-
 # Add inputs and outputs from these tool invocations to the build variables 
-CPP_SRCS += \
-../src/graphics/LineBatch.cpp \
-../src/graphics/Mesh.cpp \
-../src/graphics/Shader.cpp \
-../src/graphics/Texture.cpp \
-../src/graphics/VoxelRenderer.cpp 
+CPP_SRCS += \
+../src/graphics/LineBatch.cpp \
+../src/graphics/Mesh.cpp \
+../src/graphics/Shader.cpp \
+../src/graphics/Texture.cpp \
+../src/graphics/VoxelRenderer.cpp \
+../src/graphics/Batch2D.cpp
 
-OBJS += \
-./src/graphics/LineBatch.o \
-./src/graphics/Mesh.o \
-./src/graphics/Shader.o \
-./src/graphics/Texture.o \
-./src/graphics/VoxelRenderer.o 
+OBJS += \
+./src/graphics/LineBatch.o \
+./src/graphics/Mesh.o \
+./src/graphics/Shader.o \
+./src/graphics/Texture.o \
+./src/graphics/VoxelRenderer.o \
+./src/graphics/Batch2D.o 
 
-CPP_DEPS += \
-./src/graphics/LineBatch.d \
-./src/graphics/Mesh.d \
-./src/graphics/Shader.d \
-./src/graphics/Texture.d \
-./src/graphics/VoxelRenderer.d 
+CPP_DEPS += \
+./src/graphics/LineBatch.d \
+./src/graphics/Mesh.d \
+./src/graphics/Shader.d \
+./src/graphics/Texture.d \
+./src/graphics/VoxelRenderer.d \
+./src/graphics/Batch2D.d
 
 
 # Each subdirectory must supply rules for building sources it contributes
diff --git a/Debug_win/src/objects/subdir.mk b/Debug_win/src/objects/subdir.mk
new file mode 100644
index 00000000..ce3e7c3d
--- /dev/null
+++ b/Debug_win/src/objects/subdir.mk
@@ -0,0 +1,20 @@
+# Add inputs and outputs from these tool invocations to the build variables 
+CPP_SRCS += \
+../src/objects/Player.cpp 
+
+OBJS += \
+./src/objects/Player.o 
+
+CPP_DEPS += \
+./src/objects/Player.d 
+
+
+# Each subdirectory must supply rules for building sources it contributes
+src/objects/%.o: ../src/objects/%.cpp src/objects/subdir.mk
+	@echo 'Building file: $<'
+	@echo 'Invoking: GCC C++ Compiler'
+	g++ -O0 -g3 -Wall -c -fmessage-length=0 -MMD -MP -MF"$(@:%.o=%.d)" -MT"$@" -o "$@" "$<"
+	@echo 'Finished building: $<'
+	@echo ' '
+
+
diff --git a/Debug_win/src/subdir.mk b/Debug_win/src/subdir.mk
index d41d8884..a0330fab 100644
--- a/Debug_win/src/subdir.mk
+++ b/Debug_win/src/subdir.mk
@@ -1,16 +1,15 @@
-################################################################################
-# Automatically-generated file. Do not edit!
-################################################################################
-
 # Add inputs and outputs from these tool invocations to the build variables 
 CPP_SRCS += \
-../src/voxel_engine.cpp 
+../src/voxel_engine.cpp \
+../src/Assets.cpp 
 
 OBJS += \
-./src/voxel_engine.o 
+./src/voxel_engine.o \
+./src/Assets.o 
 
 CPP_DEPS += \
-./src/voxel_engine.d 
+./src/voxel_engine.d \
+./src/Assets.d 
 
 
 # Each subdirectory must supply rules for building sources it contributes
diff --git a/res/ascii.png b/res/ascii.png
new file mode 100644
index 00000000..3278f04c
Binary files /dev/null and b/res/ascii.png differ
diff --git a/res/block (copy).png b/res/block (copy).png
new file mode 100644
index 00000000..5e2512c7
Binary files /dev/null and b/res/block (copy).png differ
diff --git a/src/Assets.cpp b/src/Assets.cpp
new file mode 100644
index 00000000..fbaaa21e
--- /dev/null
+++ b/src/Assets.cpp
@@ -0,0 +1,31 @@
+#include "Assets.h"
+
+#include "graphics/Texture.h"
+#include "graphics/Shader.h"
+
+Assets::~Assets() {
+	for (auto& iter : shaders){
+		delete iter.second;
+	}
+
+	for (auto& iter : textures){
+		delete iter.second;
+	}
+}
+
+Texture* Assets::getTexture(std::string name){
+	return textures[name];
+}
+
+void Assets::store(Texture* texture, std::string name){
+	textures[name] = texture;
+}
+
+
+Shader* Assets::getShader(std::string name){
+	return shaders[name];
+}
+
+void Assets::store(Shader* shader, std::string name){
+	shaders[name] = shader;
+}
diff --git a/src/Assets.h b/src/Assets.h
new file mode 100644
index 00000000..daca7d19
--- /dev/null
+++ b/src/Assets.h
@@ -0,0 +1,22 @@
+#ifndef SRC_ASSETS_H_
+#define SRC_ASSETS_H_
+
+#include <string>
+#include <unordered_map>
+
+class Texture;
+class Shader;
+
+class Assets {
+	std::unordered_map<std::string, Texture*> textures;
+	std::unordered_map<std::string, Shader*> shaders;
+public:
+	~Assets();
+	Texture* getTexture(std::string name);
+	void store(Texture* texture, std::string name);
+
+	Shader* getShader(std::string name);
+	void store(Shader* shader, std::string name);
+};
+
+#endif /* SRC_ASSETS_H_ */
diff --git a/src/declarations.h b/src/declarations.h
index 412d2afb..ae6edc38 100644
--- a/src/declarations.h
+++ b/src/declarations.h
@@ -1,8 +1,8 @@
-#ifndef DECLARATIONS_CPP
-#define DECLARATIONS_CPP
+#ifndef DECLARATIONS_H
+#define DECLARATIONS_H
 
 #include <iostream>
-
+#include "Assets.h"
 #include "graphics/Shader.h"
 #include "graphics/Texture.h"
 #include "window/Window.h"
@@ -10,49 +10,42 @@
 #include "voxels/Block.h"
 
 
-Shader *shader, *linesShader, *crosshairShader;
-Texture *texture;
-
-
 // Shaders, textures, renderers
-int initialize_assets() {
-	shader = load_shader("res/main.glslv", "res/main.glslf");
+
+bool _load_shader(Assets* assets, std::string vertex_file, std::string fragment_file, std::string name){
+	Shader* shader = load_shader(vertex_file, fragment_file);
 	if (shader == nullptr){
-		std::cerr << "failed to load shader" << std::endl;
-		Window::terminate();
-		return 1;
+		std::cerr << "failed to load shader '" << name << "'" << std::endl;
+		return false;
 	}
-
-	crosshairShader = load_shader("res/crosshair.glslv", "res/crosshair.glslf");
-	if (crosshairShader == nullptr){
-		std::cerr << "failed to load crosshair shader" << std::endl;
-		Window::terminate();
-		return 1;
-	}
-
-	linesShader = load_shader("res/lines.glslv", "res/lines.glslf");
-	if (linesShader == nullptr){
-		std::cerr << "failed to load lines shader" << std::endl;
-		Window::terminate();
-		return 1;
-	}
-
-	texture = load_texture("res/block.png");
-	if (texture == nullptr){
-		std::cerr << "failed to load texture" << std::endl;
-		delete shader;
-		Window::terminate();
-		return 1;
-	}
-	return 0;
+	assets->store(shader, name);
+	return true;
 }
 
-// Deleting GL objects like shaders, textures
-void finalize_assets(){
-	delete shader;
-	delete texture;
-	delete crosshairShader;
-	delete linesShader;
+bool _load_texture(Assets* assets, std::string filename, std::string name){
+	Texture* texture = load_texture(filename);
+	if (texture == nullptr){
+		std::cerr << "failed to load texture '" << name << "'" << std::endl;
+		return false;
+	}
+	assets->store(texture, name);
+	return true;
+}
+
+int initialize_assets(Assets* assets) {
+#define LOAD_SHADER(VERTEX, FRAGMENT, NAME) \
+	if (!_load_shader(assets, VERTEX, FRAGMENT, NAME))\
+		return 1;
+#define LOAD_TEXTURE(FILENAME, NAME) \
+	if (!_load_texture(assets, FILENAME, NAME))\
+		return 1;
+
+	LOAD_SHADER("res/main.glslv", "res/main.glslf", "main");
+	LOAD_SHADER("res/crosshair.glslv", "res/crosshair.glslf", "crosshair");
+	LOAD_SHADER("res/lines.glslv", "res/lines.glslf", "lines");
+
+	LOAD_TEXTURE("res/block.png", "block");
+	return 0;
 }
 
 
@@ -115,5 +108,5 @@ void setup_definitions() {
 	block->obstacle = false;
 	Block::blocks[block->id] = block;
 }
-#endif // DECLARATIONS_CPP
+#endif // DECLARATIONS_H
 
diff --git a/src/graphics/Batch2D.cpp b/src/graphics/Batch2D.cpp
new file mode 100644
index 00000000..e6b43770
--- /dev/null
+++ b/src/graphics/Batch2D.cpp
@@ -0,0 +1,18 @@
+#include "Batch2D.h"
+#include "Mesh.h"
+
+Batch2D::Batch2D(size_t capacity) : capacity(capacity),
+									offset(0),
+									color(1.0f, 1.0f, 1.0f, 1.0f){
+	const int attrs[] = {
+			2, 2, 4, 0 //null terminator
+	};
+
+	buffer = new float[capacity];
+	mesh = new Mesh(nullptr, 0, attrs);
+}
+
+Batch2D::~Batch2D(){
+	delete buffer;
+	delete mesh;
+}
diff --git a/src/graphics/Batch2D.h b/src/graphics/Batch2D.h
new file mode 100644
index 00000000..7e756eda
--- /dev/null
+++ b/src/graphics/Batch2D.h
@@ -0,0 +1,27 @@
+#ifndef SRC_GRAPHICS_BATCH2D_H_
+#define SRC_GRAPHICS_BATCH2D_H_
+
+#include <stdlib.h>
+#include <glm/glm.hpp>
+
+class Mesh;
+
+class Batch2D {
+	float* buffer;
+	size_t capacity;
+	size_t offset;
+	glm::vec4 color;
+	Mesh* mesh;
+
+	void vertex(float x, float y,
+			float u, float v,
+			float r, float g, float b, float a);
+public:
+	Batch2D(size_t capacity);
+	~Batch2D();
+
+	void rect(float x, float y, float w, float h);
+	void render();
+};
+
+#endif /* SRC_GRAPHICS_BATCH2D_H_ */
diff --git a/src/graphics/Mesh.cpp b/src/graphics/Mesh.cpp
index 678115f0..ef99560f 100644
--- a/src/graphics/Mesh.cpp
+++ b/src/graphics/Mesh.cpp
@@ -12,7 +12,12 @@ Mesh::Mesh(const float* buffer, size_t vertices, const int* attrs) : vertices(ve
 
 	glBindVertexArray(vao);
 	glBindBuffer(GL_ARRAY_BUFFER, vbo);
-	glBufferData(GL_ARRAY_BUFFER, sizeof(float) * vertexSize * vertices, buffer, GL_STATIC_DRAW);
+	if (buffer){
+		glBufferData(GL_ARRAY_BUFFER, sizeof(float) * vertexSize * vertices, buffer, GL_STATIC_DRAW);
+	} else {
+		glBufferData(GL_ARRAY_BUFFER, 0, {}, GL_STATIC_DRAW);
+	}
+
 
 	// attributes
 	int offset = 0;
diff --git a/src/objects/Player.cpp b/src/objects/Player.cpp
index 5acec728..2633c2ca 100644
--- a/src/objects/Player.cpp
+++ b/src/objects/Player.cpp
@@ -5,6 +5,8 @@
 
 Player::Player(glm::vec3 position, float speed, Camera* camera) :
 		speed(speed),
-		camera(camera){
+		camera(camera),
+		choosenBlock(1),
+		camX(0.0f), camY(0.0f){
 	hitbox = new Hitbox(position, vec3(0.2f,0.9f,0.2f));
 }
diff --git a/src/objects/Player.h b/src/objects/Player.h
index 335cb5cd..66174cb6 100644
--- a/src/objects/Player.h
+++ b/src/objects/Player.h
@@ -11,6 +11,7 @@ public:
 	float speed;
 	Camera* camera;
 	Hitbox* hitbox;
+	int choosenBlock;
 	float camX, camY;
 	Player(glm::vec3 position, float speed, Camera* camera);
 	~Player();
diff --git a/src/voxel_engine.cpp b/src/voxel_engine.cpp
index 53b8b785..fa117aff 100644
--- a/src/voxel_engine.cpp
+++ b/src/voxel_engine.cpp
@@ -1,3 +1,5 @@
+// Install dependencies:
+// sudo apt install libgl-dev libglew-dev libglfw3-dev libpng-dev libglm-dev
 #include <iostream>
 
 #define GLEW_STATIC
@@ -37,22 +39,15 @@ using namespace glm;
 #include "physics/Hitbox.h"
 #include "physics/PhysicsSolver.h"
 
+#include "Assets.h"
 #include "objects/Player.h"
 
 #include "declarations.h"
 #include "world_render.h"
 
-int WIDTH = 1280;
-int HEIGHT = 720;
-
-Chunks* chunks;
-WorldFiles* wfile;
-
-bool occlusion = false;
-
 
 // Save all world data to files
-void write_world(){
+void write_world(WorldFiles* wfile, Chunks* chunks){
 	for (unsigned int i = 0; i < chunks->volume; i++){
 		Chunk* chunk = chunks->chunks[i];
 		if (chunk == nullptr)
@@ -64,27 +59,134 @@ void write_world(){
 }
 
 // Deleting world data from memory
-void close_world(){
+void close_world(WorldFiles* wfile, Chunks* chunks){
 	delete chunks;
 	delete wfile;
 }
 
+void update_controls(PhysicsSolver* physics,
+		Chunks* chunks,
+		Player* player,
+		float delta){
+	// Controls
+	Camera* camera = player->camera;
+	Hitbox* hitbox = player->hitbox;
+	bool sprint = Events::pressed(GLFW_KEY_LEFT_CONTROL);
+	bool shift = Events::pressed(GLFW_KEY_LEFT_SHIFT) && hitbox->grounded && !sprint;
+
+	float speed = player->speed;
+	int substeps = (int)(delta * 1000);
+	substeps = (substeps <= 0 ? 1 : (substeps > 100 ? 100 : substeps));
+	physics->step(chunks, hitbox, delta, substeps, shift);
+	camera->position.x = hitbox->position.x;
+	camera->position.y = hitbox->position.y + 0.5f;
+	camera->position.z = hitbox->position.z;
+
+	float dt = min(1.0f, delta * 16);
+	if (shift){
+		speed *= 0.25f;
+		camera->position.y -= 0.2f;
+		camera->zoom = 0.9f * dt + camera->zoom * (1.0f - dt);
+	} else if (sprint){
+		speed *= 1.5f;
+		camera->zoom = 1.1f * dt + camera->zoom * (1.0f - dt);
+	} else {
+		camera->zoom = dt + camera->zoom * (1.0f - dt);
+	}
+	if (Events::pressed(GLFW_KEY_SPACE) && hitbox->grounded){
+		hitbox->velocity.y = 6.0f;
+	}
+
+	vec3 dir(0,0,0);
+	if (Events::pressed(GLFW_KEY_W)){
+		dir.x += camera->dir.x;
+		dir.z += camera->dir.z;
+	}
+	if (Events::pressed(GLFW_KEY_S)){
+		dir.x -= camera->dir.x;
+		dir.z -= camera->dir.z;
+	}
+	if (Events::pressed(GLFW_KEY_D)){
+		dir.x += camera->right.x;
+		dir.z += camera->right.z;
+	}
+	if (Events::pressed(GLFW_KEY_A)){
+		dir.x -= camera->right.x;
+		dir.z -= camera->right.z;
+	}
+	if (length(dir) > 0.0f)
+		dir = normalize(dir);
+	hitbox->velocity.x = dir.x * speed;
+	hitbox->velocity.z = dir.z * speed;
+
+	if (Events::_cursor_locked){
+		player->camY += -Events::deltaY / Window::height * 2;
+		player->camX += -Events::deltaX / Window::height * 2;
+
+		if (player->camY < -radians(89.0f)){
+			player->camY = -radians(89.0f);
+		}
+		if (player->camY > radians(89.0f)){
+			player->camY = radians(89.0f);
+		}
+
+		camera->rotation = mat4(1.0f);
+		camera->rotate(player->camY, player->camX, 0);
+	}
+}
+
+void update_interaction(Chunks* chunks, PhysicsSolver* physics, Player* player, Lighting* lighting){
+	Camera* camera = player->camera;
+	{
+		vec3 end;
+		vec3 norm;
+		vec3 iend;
+		voxel* vox = chunks->rayCast(camera->position, camera->front, 10.0f, end, norm, iend);
+		if (vox != nullptr){
+			lineBatch->box(iend.x+0.5f, iend.y+0.5f, iend.z+0.5f, 1.005f,1.005f,1.005f, 0,0,0,0.5f);
+
+			if (Events::jclicked(GLFW_MOUSE_BUTTON_1)){
+				int x = (int)iend.x;
+				int y = (int)iend.y;
+				int z = (int)iend.z;
+				chunks->set(x,y,z, 0);
+				lighting->onBlockSet(x,y,z,0);
+			}
+			if (Events::jclicked(GLFW_MOUSE_BUTTON_2)){
+				int x = (int)(iend.x)+(int)(norm.x);
+				int y = (int)(iend.y)+(int)(norm.y);
+				int z = (int)(iend.z)+(int)(norm.z);
+				if (!physics->isBlockInside(x,y,z, player->hitbox)){
+					chunks->set(x, y, z, player->choosenBlock);
+					lighting->onBlockSet(x,y,z, player->choosenBlock);
+				}
+			}
+		}
+	}
+}
+
+int WIDTH = 1280;
+int HEIGHT = 720;
+
 int main() {
 	setup_definitions();
 
 	Window::initialize(WIDTH, HEIGHT, "Window 2.0");
 	Events::initialize();
 
-	int result = initialize_assets();
+	std::cout << "-- loading assets" << std::endl;
+	Assets* assets = new Assets();
+	int result = initialize_assets(assets);
 	if (result){
+		delete assets;
 		Window::terminate();
 		return result;
 	}
+	std::cout << "-- loading world" << std::endl;
 
-	Camera* camera = new Camera(vec3(-320,255,32), radians(90.0f));
-
-	wfile = new WorldFiles("world/", REGION_VOL * (CHUNK_VOL * 2 + 8));
-	chunks = new Chunks(34,1,34, 0,0,0);
+	Camera *camera = new Camera(vec3(-320,255,32), radians(90.0f));
+	WorldFiles *wfile = new WorldFiles("world/", REGION_VOL * (CHUNK_VOL * 2 + 8));
+	Chunks *chunks = new Chunks(34,1,34, 0,0,0);
 
 
 	Player* player = new Player(vec3(camera->position), 5.0f, camera);
@@ -92,9 +194,10 @@ int main() {
 	camera->rotation = mat4(1.0f);
 	camera->rotate(player->camY, player->camX, 0);
 
+	std::cout << "-- preparing systems" << std::endl;
+
 	VoxelRenderer renderer(1024*1024);
 	PhysicsSolver physics(vec3(0,-16.0f,0));
-
 	Lighting lighting(chunks);
 
 	init_renderer();
@@ -104,20 +207,20 @@ int main() {
 	float lastTime = glfwGetTime();
 	float delta = 0.0f;
 
-	int choosenBlock = 1;
 	long frame = 0;
 
+	bool occlusion = false;
+
 	glfwSwapInterval(1);
 
+	std::cout << "-- initializing finished" << std::endl;
+
 	while (!Window::isShouldClose()){
 		frame++;
 		float currentTime = glfwGetTime();
 		delta = currentTime - lastTime;
 		lastTime = currentTime;
 
-		if (frame % 240 == 0)
-			std::cout << 1.0/delta << std::endl;
-
 		if (Events::jpressed(GLFW_KEY_O)){
 			occlusion = !occlusion;
 		}
@@ -131,117 +234,32 @@ int main() {
 
 		for (int i = 1; i < 10; i++){
 			if (Events::jpressed(GLFW_KEY_0+i)){
-				choosenBlock = i;
+				player->choosenBlock = i;
 			}
 		}
 
-		// Controls
-		Hitbox* hitbox = player->hitbox;
-		bool sprint = Events::pressed(GLFW_KEY_LEFT_CONTROL);
-		bool shift = Events::pressed(GLFW_KEY_LEFT_SHIFT) && hitbox->grounded && !sprint;
-
-		float speed = player->speed;
-		int substeps = (int)(delta * 1000);
-		substeps = (substeps <= 0 ? 1 : (substeps > 100 ? 100 : substeps));
-		physics.step(chunks, hitbox, delta, substeps, shift);
-		camera->position.x = hitbox->position.x;
-		camera->position.y = hitbox->position.y + 0.5f;
-		camera->position.z = hitbox->position.z;
-
-		float dt = min(1.0f, delta * 16);
-		if (shift){
-			speed *= 0.25f;
-			camera->position.y -= 0.2f;
-			camera->zoom = 0.9f * dt + camera->zoom * (1.0f - dt);
-		} else if (sprint){
-			speed *= 1.5f;
-			camera->zoom = 1.1f * dt + camera->zoom * (1.0f - dt);
-		} else {
-			camera->zoom = dt + camera->zoom * (1.0f - dt);
-		}
-		if (Events::pressed(GLFW_KEY_SPACE) && hitbox->grounded){
-			hitbox->velocity.y = 6.0f;
-		}
-
-		vec3 dir(0,0,0);
-		if (Events::pressed(GLFW_KEY_W)){
-			dir.x += camera->dir.x;
-			dir.z += camera->dir.z;
-		}
-		if (Events::pressed(GLFW_KEY_S)){
-			dir.x -= camera->dir.x;
-			dir.z -= camera->dir.z;
-		}
-		if (Events::pressed(GLFW_KEY_D)){
-			dir.x += camera->right.x;
-			dir.z += camera->right.z;
-		}
-		if (Events::pressed(GLFW_KEY_A)){
-			dir.x -= camera->right.x;
-			dir.z -= camera->right.z;
-		}
-		if (length(dir) > 0.0f)
-			dir = normalize(dir);
-		hitbox->velocity.x = dir.x * speed;
-		hitbox->velocity.z = dir.z * speed;
+		update_controls(&physics, chunks, player, delta);
+		update_interaction(chunks, &physics, player, &lighting);
 
 		chunks->setCenter(wfile, camera->position.x,0,camera->position.z);
 		chunksController._buildMeshes(&renderer, frame);
 		chunksController.loadVisible(wfile);
 
-		if (Events::_cursor_locked){
-			player->camY += -Events::deltaY / Window::height * 2;
-			player->camX += -Events::deltaX / Window::height * 2;
-
-			if (player->camY < -radians(89.0f)){
-				player->camY = -radians(89.0f);
-			}
-			if (player->camY > radians(89.0f)){
-				player->camY = radians(89.0f);
-			}
-
-			camera->rotation = mat4(1.0f);
-			camera->rotate(player->camY, player->camX, 0);
-		}
-
-		{
-			vec3 end;
-			vec3 norm;
-			vec3 iend;
-			voxel* vox = chunks->rayCast(camera->position, camera->front, 10.0f, end, norm, iend);
-			if (vox != nullptr){
-				lineBatch->box(iend.x+0.5f, iend.y+0.5f, iend.z+0.5f, 1.005f,1.005f,1.005f, 0,0,0,0.5f);
-
-				if (Events::jclicked(GLFW_MOUSE_BUTTON_1)){
-					int x = (int)iend.x;
-					int y = (int)iend.y;
-					int z = (int)iend.z;
-					chunks->set(x,y,z, 0);
-					lighting.onBlockSet(x,y,z,0);
-				}
-				if (Events::jclicked(GLFW_MOUSE_BUTTON_2)){
-					int x = (int)(iend.x)+(int)(norm.x);
-					int y = (int)(iend.y)+(int)(norm.y);
-					int z = (int)(iend.z)+(int)(norm.z);
-					if (!physics.isBlockInside(x,y,z, hitbox)){
-						chunks->set(x, y, z, choosenBlock);
-						lighting.onBlockSet(x,y,z, choosenBlock);
-					}
-				}
-			}
-		}
-		draw_world(camera, shader, texture, crosshairShader, linesShader, chunks, occlusion);
+		draw_world(camera, assets, chunks, occlusion);
 
 		Window::swapBuffers();
 		Events::pullEvents();
 	}
+	std::cout << "-- saving world" << std::endl;
 
 	wfile->writePlayer(player);
-	write_world();
-	close_world();
+	write_world(wfile, chunks);
+	close_world(wfile, chunks);
 
+	std::cout << "-- shutting down" << std::endl;
+
+	delete assets;
 	finalize_renderer();
-	finalize_assets();
 	Window::terminate();
 	return 0;
 }
diff --git a/src/world_render.h b/src/world_render.h
index 630736da..ef8344ab 100644
--- a/src/world_render.h
+++ b/src/world_render.h
@@ -96,8 +96,7 @@ bool chunks_comparator(size_t i, size_t j) {
 }
 
 
-void draw_world(Camera* camera, Shader* shader, Texture* texture,
-				Shader* crosshairShader, Shader* linesShader,
+void draw_world(Camera* camera, Assets* assets,
 				Chunks* chunks, bool occlusion){
 	glClearColor(0.7f,0.71f,0.73f,1);
 	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
@@ -105,6 +104,10 @@ void draw_world(Camera* camera, Shader* shader, Texture* texture,
 	_chunks = chunks;
 
 	// Draw VAO
+	Texture* texture = assets->getTexture("block");
+	Shader* shader = assets->getShader("main");
+	Shader* crosshairShader = assets->getShader("crosshair");
+	Shader* linesShader = assets->getShader("lines");
 	shader->use();
 	shader->uniformMatrix("u_proj", camera->getProjection());
 	shader->uniformMatrix("u_view", camera->getView());