diff --git a/src/files/WorldFiles.cpp b/src/files/WorldFiles.cpp
index 84388a72..b4c62102 100644
--- a/src/files/WorldFiles.cpp
+++ b/src/files/WorldFiles.cpp
@@ -171,7 +171,7 @@ bool WorldFiles::readChunk(int x, int y, char* out){
 	input.read(mainBufferIn, compressedSize);
 	input.close();
 
-	decompressRLE(mainBufferIn, compressedSize, out, CHUNK_VOL);
+	decompressRLE((unsigned char*)mainBufferIn, compressedSize, (unsigned char*)out, CHUNK_VOL);
 
 	return true;
 }
@@ -274,7 +274,7 @@ unsigned int WorldFiles::writeRegion(char* out, int x, int y, char** region){
 		} else {
 			int2Bytes(offset, out, i*4);
 
-			unsigned int compressedSize = compressRLE(chunk, CHUNK_VOL, compressed);
+			unsigned int compressedSize = compressRLE((unsigned char*)chunk, CHUNK_VOL, (unsigned char*)compressed);
 
 			int2Bytes(compressedSize, out, offset);
 			offset += 4;
diff --git a/src/files/files.cpp b/src/files/files.cpp
index 783faa2a..573d1f4b 100644
--- a/src/files/files.cpp
+++ b/src/files/files.cpp
@@ -2,6 +2,8 @@
 
 #include <fstream>
 #include <iostream>
+#include <memory>
+#include <stdint.h>
 
 bool write_binary_file_part(std::string filename, const char* data, size_t offset, size_t size){
 	std::ofstream output(filename, std::ios::out | std::ios::binary | std::ios::in);
@@ -48,18 +50,18 @@ char* read_binary_file(std::string filename, size_t& length) {
 	length = input.tellg();
 	input.seekg(0, std::ios_base::beg);
 
-	char* data = new char[length];
-	input.read(data, length);
+	std::unique_ptr<char> data {new char[length]};
+	input.read(data.get(), length);
 	input.close();
-	return data;
+	return data.release();
 }
 
 // returns decompressed length
-unsigned int decompressRLE(const char* src, unsigned int length, char* dst, unsigned int targetLength){
-	unsigned int offset = 0;
-	for (unsigned int i = 0; i < length;){
+size_t decompressRLE(const ubyte* src, size_t length, ubyte* dst, size_t targetLength){
+	size_t offset = 0;
+	for (size_t i = 0; i < length;){
 		unsigned char counter = src[i++];
-		char c = src[i++];
+		unsigned char c = src[i++];
 		for (unsigned int j = 0; j <= counter; j++){
 			dst[offset++] = c;
 		}
@@ -67,12 +69,12 @@ unsigned int decompressRLE(const char* src, unsigned int length, char* dst, unsi
 	return offset;
 }
 
-unsigned int calcRLE(const char* src, unsigned int length) {
-	unsigned int offset = 0;
-	unsigned int counter = 0;
-	char c = src[0];
-	for (unsigned int i = 0; i < length; i++){
-		char cnext = src[i];
+size_t calcRLE(const ubyte* src, size_t length) {
+	size_t offset = 0;
+	size_t counter = 0;
+	ubyte c = src[0];
+	for (size_t i = 0; i < length; i++){
+		ubyte cnext = src[i];
 		if (cnext != c || counter == 255){
 			offset += 2;
 			c = cnext;
@@ -85,12 +87,14 @@ unsigned int calcRLE(const char* src, unsigned int length) {
 }
 
 // max result size = length * 2; returns compressed length
-unsigned int compressRLE(const char* src, unsigned int length, char* dst) {
-	unsigned int offset = 0;
-	unsigned int counter = 0;
-	char c = src[0];
-	for (unsigned int i = 1; i < length; i++){
-		char cnext = src[i];
+size_t compressRLE(const ubyte* src, size_t length, ubyte* dst) {
+	if (length == 0)
+		return 0;
+	size_t offset = 0;
+	uint counter = 0;
+	ubyte c = src[0];
+	for (size_t i = 1; i < length; i++){
+		ubyte cnext = src[i];
 		if (cnext != c || counter == 255){
 			dst[offset++] = counter;
 			dst[offset++] = c;
diff --git a/src/files/files.h b/src/files/files.h
index 7b53cb16..b760529d 100644
--- a/src/files/files.h
+++ b/src/files/files.h
@@ -2,6 +2,7 @@
 #define FILES_FILES_H_
 
 #include <string>
+#include "../typedefs.h"
 
 extern bool write_binary_file(std::string filename, const char* data, size_t size);
 extern unsigned int append_binary_file(std::string filename, const char* data, size_t size);
@@ -9,8 +10,8 @@ extern bool read_binary_file(std::string filename, char* data, size_t size);
 extern bool read_binary_file(std::string filename, char* data, size_t offset, size_t size);
 extern char* read_binary_file(std::string filename, size_t& length);
 
-extern unsigned int calcRLE(const char* src, unsigned int length);
-extern unsigned int compressRLE(const char* src, unsigned int length, char* dst);
-extern unsigned int decompressRLE(const char* src, unsigned int length, char* dst, unsigned int targetLength);
+extern size_t calcRLE(const ubyte* src, size_t length);
+extern size_t compressRLE(const ubyte* src, size_t length, ubyte* dst);
+extern size_t decompressRLE(const ubyte* src, size_t length, ubyte* dst, size_t targetLength);
 
 #endif /* FILES_FILES_H_ */
diff --git a/src/graphics/VoxelRenderer.cpp b/src/graphics/VoxelRenderer.cpp
index 94f79ce5..689156f2 100644
--- a/src/graphics/VoxelRenderer.cpp
+++ b/src/graphics/VoxelRenderer.cpp
@@ -415,7 +415,6 @@ inline void _renderBlock(std::vector<float>& buffer, int x, int y, int z, const
 }
 
 inline void _renderBlockShadeless(std::vector<float>& buffer, int x, int y, int z, const Chunk** chunks, voxel vox, size_t& index){
-	float l;
 	float uvsize = 1.0f/16.0f;
 
 	Block* block = Block::blocks[vox.id];
@@ -495,7 +494,7 @@ inline void _renderBlockShadeless(std::vector<float>& buffer, int x, int y, int
 inline void _renderXBlock(std::vector<float>& buffer, int x, int y, int z, const Chunk** chunks, voxel vox, size_t& index){
 	Block* block = Block::blocks[vox.id];
 
-	int rand = ((x * z + y) xor (z * y - x)) * (z + y);
+	int rand = ((x * z + y) ^ (z * y - x)) * (z + y);
 
 	float xs = (float)(char)rand / 512;
 	float zs = (float)(char)(rand >> 8) / 512;
diff --git a/src/hud_render.cpp b/src/hud_render.cpp
index 5870a46b..9e028b03 100644
--- a/src/hud_render.cpp
+++ b/src/hud_render.cpp
@@ -2,6 +2,8 @@
 
 #include <GL/glew.h>
 #include <GLFW/glfw3.h>
+
+#include "typedefs.h"
 #include "Assets.h"
 #include "graphics/Shader.h"
 #include "graphics/Batch2D.h"
@@ -125,12 +127,12 @@ void HudRenderer::draw(Level* level, Assets* assets){
 	}
 
 	if (!Events::_cursor_locked) { //inventory
-		int size = 48;
-		int step = 64;
-		int inv_wm = step*10;
-		int inv_hm = step*8;
-		int inv_w = inv_wm - (step - size);
-		int inv_h = inv_hm - (step - size);
+		uint size = 48;
+		uint step = 64;
+		uint inv_wm = step*10;
+		uint inv_hm = step*8;
+		uint inv_w = inv_wm - (step - size);
+		uint inv_h = inv_hm - (step - size);
 		int inv_x = (Window::width - (inv_w)) / 2;
 		int inv_y = (Window::height - (inv_h)) / 2;
 		int xs = (Window::width - inv_w + step)/2;
@@ -146,7 +148,7 @@ void HudRenderer::draw(Level* level, Assets* assets){
 		vec4 tint = vec4(1.0f);
 		int mx = Events::x;
 		int my = Events::y;
-		int count = (inv_w / step) * (inv_h / step) + 1;
+		uint count = (inv_w / step) * (inv_h / step) + 1;
 
 		//back
 		batch->texture(nullptr);
@@ -162,7 +164,7 @@ void HudRenderer::draw(Level* level, Assets* assets){
 						0.75f, 0.75f, 0.75f, 0.75f, 0.75f, 0.75f, 4);
 
 		batch->color = vec4(0.35f, 0.35f, 0.35f, 1.0f);
-		for (unsigned i = 1; i < count; i++) {
+		for (uint i = 1; i < count; i++) {
 			x = xs + step * ((i-1) % (inv_w / step));
 			y = ys + step * ((i-1) / (inv_w / step));
 			// batch->rect(x-2, y-2, size+4, size+4);
@@ -185,13 +187,13 @@ void HudRenderer::draw(Level* level, Assets* assets){
 
 		//front
 		batch->texture(blocks);
-		for (unsigned i = 1; i < count; i++) {
+		for (uint i = 1; i < count; i++) {
 			Block* cblock = Block::blocks[i];
 			if (cblock == nullptr)
 				break;
 			x = xs + step * ((i-1) % (inv_w / step));
 			y = ys + step * ((i-1) / (inv_w / step));
-			if (mx > x && mx < x + size && my > y && my < y + size) {
+			if (mx > x && mx < x + (int)size && my > y && my < y + (int)size) {
 				tint.r *= 1.2f;
 				tint.g *= 1.2f;
 				tint.b *= 1.2f;
diff --git a/src/player_control.cpp b/src/player_control.cpp
index a3b5cbbf..9bdd6829 100644
--- a/src/player_control.cpp
+++ b/src/player_control.cpp
@@ -188,10 +188,10 @@ void PlayerController::update_interaction(){
 		int x = (int)iend.x;
 		int y = (int)iend.y;
 		int z = (int)iend.z;
-		uint8_t states;
+		uint8_t states = 0;
 
 		if (Block::blocks[player->choosenBlock]->rotatable){
-			states = states & 0b11111100;
+			// states = states & 0b11111100;
 			// if (abs(norm.x) > abs(norm.z)){
 			// 	if (abs(norm.x) > abs(norm.y)) states = states | 0b00000001;
 			// 	if (abs(norm.x) < abs(norm.y)) states = states | 0b00000010;
diff --git a/src/typedefs.h b/src/typedefs.h
new file mode 100644
index 00000000..52b4123c
--- /dev/null
+++ b/src/typedefs.h
@@ -0,0 +1,4 @@
+#include <stdint.h>
+
+typedef unsigned int uint;
+typedef unsigned char ubyte;
diff --git a/src/voxel_engine.cpp b/src/voxel_engine.cpp
index cec3c7e0..d5aa94fc 100644
--- a/src/voxel_engine.cpp
+++ b/src/voxel_engine.cpp
@@ -75,7 +75,7 @@ void write_world(World* world, Level* level){
 	world->wfile->writePlayer(level->player);
 }
 
-void update_level(World* world, Level* level, float delta, long frame, VoxelRenderer* renderer) {
+void update_level(World* world, Level* level, float delta) {
 	level->playerController->update_controls(delta);
 	if (Events::_cursor_locked){
 		level->playerController->update_interaction();
@@ -151,10 +151,10 @@ void mainloop(Level* level, Assets* assets) {
 			}
 		}
 
-		update_level(world, level, delta, frame, worldRenderer.renderer);
+		update_level(world, level, delta);
 		int freeLoaders = level->chunksController->countFreeLoaders();
 		for (int i = 0; i < freeLoaders; i++)
-			level->chunksController->_buildMeshes(worldRenderer.renderer, frame);
+			level->chunksController->_buildMeshes();
 		freeLoaders = level->chunksController->countFreeLoaders();
 		for (int i = 0; i < freeLoaders; i++)
 			level->chunksController->calculateLights();
diff --git a/src/voxels/ChunksController.cpp b/src/voxels/ChunksController.cpp
index 1ca47b52..b943e260 100644
--- a/src/voxels/ChunksController.cpp
+++ b/src/voxels/ChunksController.cpp
@@ -185,7 +185,7 @@ void ChunksController::calculateLights() {
 	freeLoader->lights(chunk, (Chunk**)closes);
 }
 
-bool ChunksController::_buildMeshes(VoxelRenderer* renderer, int tick) {
+bool ChunksController::_buildMeshes() {
 	const int w = chunks->w;
 	const int d = chunks->d;
 
diff --git a/src/voxels/ChunksController.h b/src/voxels/ChunksController.h
index d9315f00..1363c7a1 100644
--- a/src/voxels/ChunksController.h
+++ b/src/voxels/ChunksController.h
@@ -22,7 +22,7 @@ public:
 	int countFreeLoaders();
 	bool loadVisible(WorldFiles* worldFiles);
 	void calculateLights();
-	bool _buildMeshes(VoxelRenderer* renderer, int tick);
+	bool _buildMeshes();
 };
 
 #endif /* VOXELS_CHUNKSCONTROLLER_H_ */
diff --git a/src/voxels/WorldGenerator.cpp b/src/voxels/WorldGenerator.cpp
index 3ad843bb..208a57d0 100644
--- a/src/voxels/WorldGenerator.cpp
+++ b/src/voxels/WorldGenerator.cpp
@@ -31,11 +31,11 @@ public:
 	}
 
 	void setSeed(int number){
-		seed = ((unsigned short)(number*23729) xor (unsigned short)(number+16786));
+		seed = ((unsigned short)(number*23729) ^ (unsigned short)(number+16786));
 		rand();
 	}
 	void setSeed(int number1,int number2){
-		seed = (((unsigned short)(number1*23729) or (unsigned short)(number2%16786)) xor (unsigned short)(number2*number1));
+		seed = (((unsigned short)(number1*23729) | (unsigned short)(number2%16786)) ^ (unsigned short)(number2*number1));
 		rand();
 	}
 };
diff --git a/src/window/Events.cpp b/src/window/Events.cpp
index 13327b3b..58df902c 100644
--- a/src/window/Events.cpp
+++ b/src/window/Events.cpp
@@ -15,7 +15,7 @@ bool Events::_cursor_started = false;
 
 #define _MOUSE_BUTTONS 1024
 
-void cursor_position_callback(GLFWwindow* window, double xpos, double ypos){
+void cursor_position_callback(GLFWwindow*, double xpos, double ypos){
 	if (Events::_cursor_started){
 		Events::deltaX += xpos-Events::x;
 		Events::deltaY += ypos-Events::y;
@@ -27,7 +27,7 @@ void cursor_position_callback(GLFWwindow* window, double xpos, double ypos){
 	Events::y = ypos;
 }
 
-void mouse_button_callback(GLFWwindow* window, int button, int action, int mode){
+void mouse_button_callback(GLFWwindow*, int button, int action, int){
 	if (action == GLFW_PRESS){
 		Events::_keys[_MOUSE_BUTTONS+button] = true;
 		Events::_frames[_MOUSE_BUTTONS+button] = Events::_current;
@@ -38,7 +38,7 @@ void mouse_button_callback(GLFWwindow* window, int button, int action, int mode)
 	}
 }
 
-void key_callback(GLFWwindow* window, int key, int scancode, int action, int mode) {
+void key_callback(GLFWwindow*, int key, int /*scancode*/, int action, int /*mode*/) {
 	if (action == GLFW_PRESS){
 		Events::_keys[key] = true;
 		Events::_frames[key] = Events::_current;
@@ -49,7 +49,7 @@ void key_callback(GLFWwindow* window, int key, int scancode, int action, int mod
 	}
 }
 
-void window_size_callback(GLFWwindow* window, int width, int height){
+void window_size_callback(GLFWwindow*, int width, int height){
 	glViewport(0,0, width, height);
 	Window::width = width;
 	Window::height = height;
diff --git a/src/window/Window.cpp b/src/window/Window.cpp
index b48f4b0a..05e24727 100644
--- a/src/window/Window.cpp
+++ b/src/window/Window.cpp
@@ -4,10 +4,10 @@
 #include "Window.h"
 
 GLFWwindow* Window::window;
-int Window::width = 0;
-int Window::height = 0;
+uint Window::width = 0;
+uint Window::height = 0;
 
-int Window::initialize(int width, int height, const char* title){
+int Window::initialize(uint width, uint height, const char* title){
 	glfwInit();
 	glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
 	glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
diff --git a/src/window/Window.h b/src/window/Window.h
index dfce56b6..605cda54 100644
--- a/src/window/Window.h
+++ b/src/window/Window.h
@@ -1,14 +1,16 @@
 #ifndef WINDOW_WINDOW_H_
 #define WINDOW_WINDOW_H_
 
+#include "../typedefs.h"
+
 class GLFWwindow;
 
 class Window {
 public:
-	static int width;
-	static int height;
+	static uint width;
+	static uint height;
 	static GLFWwindow* window; // не лучшее решение делать window публичным
-	static int initialize(int width, int height, const char* title);
+	static int initialize(uint width, uint height, const char* title);
 	static void terminate();
 
 	static void viewport(int x, int y, int width, int height);